Hide settingsLast update:
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
- ☰
Time UTC | DSCOVR | ACE | ||||
---|---|---|---|---|---|---|
Solar Wind | GSM | Solar Wind | GSM | |||
Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
01:56 | - | - | - | - | - | - |
01:55 | - | - | - | - | - | - |
01:54 | - | - | - | - | - | - |
01:53 | 14.66 | 550.5 | 1.49 | - | - | - |
01:52 | 15.54 | 549.5 | 1.39 | - | - | - |
01:51 | 15.40 | 549.5 | 0.86 | - | - | - |
01:50 | 15.31 | 552.2 | 1.59 | - | - | - |
01:49 | 15.14 | 552.9 | 2.28 | - | - | - |
01:48 | 14.95 | 555.0 | 2.10 | - | - | - |
01:47 | 14.79 | 555.9 | 1.92 | - | - | - |
01:46 | 15.08 | 553.4 | 0.23 | - | - | - |
01:45 | 14.92 | 552.9 | 0.58 | - | - | - |
01:44 | 15.15 | 553.0 | 0.59 | - | - | - |
01:43 | 15.31 | 552.3 | 0.98 | - | - | - |
01:42 | 15.08 | 554.2 | 1.25 | - | - | - |
01:41 | 14.93 | 554.7 | 1.61 | - | - | - |
01:40 | 14.92 | 554.7 | 1.43 | - | - | - |
01:39 | 14.97 | 554.6 | 1.24 | - | - | - |
01:38 | 15.11 | 553.5 | 1.06 | - | - | - |
01:37 | 14.96 | 554.4 | 1.57 | - | - | - |
01:36 | 14.91 | 554.5 | 1.07 | - | - | - |
01:35 | 15.01 | 554.6 | 1.23 | - | - | - |
01:34 | 14.78 | 555.5 | 1.26 | - | - | - |
01:33 | 14.91 | 555.3 | 1.11 | - | - | - |
01:32 | 14.77 | 554.9 | 0.72 | - | - | - |
01:31 | 15.11 | 552.5 | 0.37 | - | - | - |
01:30 | 12.18 | 551.2 | 0.00 | - | - | - |
01:29 | 14.46 | 549.9 | -0.24 | - | - | - |
01:28 | 13.83 | 551.2 | 0.22 | - | - | - |
01:27 | 15.25 | 551.6 | 0.02 | - | - | - |
01:26 | 15.07 | 553.4 | 0.39 | - | - | - |
01:25 | 15.43 | 552.2 | 0.48 | - | - | - |
01:24 | 15.24 | 552.6 | 0.68 | - | - | - |
01:23 | 15.42 | 552.1 | 0.57 | - | - | - |
01:22 | 15.32 | 552.5 | 0.41 | - | - | - |
01:21 | 15.38 | 552.7 | 0.56 | - | - | - |
01:20 | 15.42 | 552.4 | 0.72 | - | - | - |
01:19 | 15.26 | 552.6 | 0.88 | - | - | - |
01:18 | 15.32 | 553.0 | 0.98 | - | - | - |
01:17 | 15.28 | 553.4 | 0.65 | - | - | - |
01:16 | 15.36 | 553.0 | 0.83 | - | - | - |
01:15 | 15.28 | 552.3 | 0.58 | - | - | - |
01:14 | 15.30 | 553.6 | 0.31 | - | - | - |
01:13 | 15.45 | 553.0 | 0.31 | - | - | - |
01:12 | 15.44 | 553.4 | 0.67 | - | - | - |
01:11 | 15.45 | 551.8 | 0.32 | - | - | - |
01:10 | 15.48 | 551.3 | 0.63 | - | - | - |
01:09 | 14.95 | 551.3 | 0.86 | - | - | - |
01:08 | 15.42 | 550.9 | 1.00 | - | - | - |
01:07 | 15.46 | 551.0 | 0.81 | - | - | - |
01:06 | 15.45 | 550.5 | 0.92 | - | - | - |
01:05 | 15.43 | 550.3 | 1.31 | - | - | - |
01:04 | 15.51 | 550.8 | 1.08 | - | - | - |
01:03 | 15.22 | 551.4 | 0.92 | - | - | - |
01:02 | 15.32 | 551.5 | 1.07 | - | - | - |
01:01 | 13.85 | 551.4 | 2.00 | - | - | - |
01:00 | 15.45 | 549.4 | 2.23 | - | - | - |
00:59 | 15.42 | 549.5 | 2.24 | - | - | - |
00:58 | 15.51 | 550.0 | 1.53 | - | - | - |
00:57 | 15.46 | 550.2 | 1.51 | - | - | - |
00:56 | 13.04 | 552.6 | -1.37 | - | - | - |
00:55 | 12.37 | 552.5 | -0.72 | - | - | - |
00:54 | 15.38 | 551.9 | -0.49 | - | - | - |
00:53 | 14.95 | 551.8 | -0.33 | - | - | - |
00:52 | 15.29 | 552.2 | -0.31 | - | - | - |
00:51 | 15.28 | 551.8 | 1.15 | - | - | - |
00:50 | 15.34 | 551.6 | 1.05 | - | - | - |
00:49 | 15.28 | 552.0 | 0.20 | - | - | - |
00:48 | 15.24 | 552.1 | 0.59 | - | - | - |
00:47 | 15.30 | 551.8 | 1.06 | - | - | - |
00:46 | 14.91 | 554.4 | 2.41 | - | - | - |
00:45 | 15.03 | 555.1 | 2.42 | - | - | - |
00:44 | 15.11 | 553.3 | 2.12 | - | - | - |
00:43 | 15.13 | 551.6 | 1.48 | - | - | - |
00:42 | 13.84 | 553.2 | 1.70 | - | - | - |
00:41 | 15.29 | 551.8 | 1.58 | - | - | - |
00:40 | 15.36 | 551.8 | 1.83 | - | - | - |
00:39 | 9.47 | 539.4 | 1.56 | - | - | - |
00:38 | 3.48 | 521.1 | 1.56 | - | - | - |
00:37 | 3.52 | 520.7 | 1.86 | - | - | - |
00:36 | 2.26 | 526.2 | 1.94 | - | - | - |
00:35 | 2.32 | 526.3 | 1.82 | - | - | - |
00:34 | 2.12 | 532.8 | 1.70 | - | - | - |
00:33 | 1.70 | 532.8 | 1.31 | - | - | - |
00:32 | 7.28 | 547.2 | 1.68 | - | - | - |
00:31 | 11.10 | 556.9 | 1.87 | - | - | - |
00:30 | 12.66 | 558.2 | 2.28 | - | - | - |
00:29 | 12.43 | 551.6 | 2.33 | - | - | - |
00:28 | 9.69 | 551.4 | 2.11 | - | - | - |
00:27 | 12.99 | 552.5 | 2.06 | - | - | - |
00:26 | 13.15 | 552.6 | 2.19 | - | - | - |
00:25 | 13.14 | 549.5 | 1.81 | - | - | - |
00:24 | 13.38 | 547.9 | 1.95 | - | - | - |
00:23 | 12.09 | 553.6 | 1.81 | - | - | - |
00:22 | 10.57 | 543.9 | 1.63 | - | - | - |
00:21 | 12.96 | 550.8 | 0.95 | - | - | - |
00:20 | 12.29 | 556.2 | 1.92 | - | - | - |
00:19 | 13.15 | 551.1 | 2.29 | - | - | - |
00:18 | 13.25 | 549.1 | 2.28 | - | - | - |
00:17 | 13.05 | 549.5 | 2.54 | - | - | - |
00:16 | 12.75 | 552.2 | 0.02 | - | - | - |
00:15 | 12.86 | 548.7 | 0.24 | - | - | - |
00:14 | 12.58 | 549.1 | -0.20 | - | - | - |
00:13 | 12.66 | 549.2 | -0.15 | - | - | - |
00:12 | 12.64 | 550.1 | 0.22 | - | - | - |
00:11 | 12.83 | 549.8 | -0.47 | - | - | - |
00:10 | 12.83 | 548.7 | -0.43 | - | - | - |
00:09 | 12.90 | 549.6 | -0.35 | - | - | - |
00:08 | 12.67 | 550.2 | -0.13 | - | - | - |
00:07 | 12.17 | 546.2 | 0.11 | - | - | - |
00:06 | 8.82 | 540.4 | -0.60 | - | - | - |
00:05 | 12.80 | 548.8 | -2.14 | - | - | - |
00:04 | 12.07 | 542.0 | -2.40 | - | - | - |
00:03 | 14.37 | 551.4 | -0.68 | - | - | - |
00:02 | 15.18 | 550.7 | -0.06 | - | - | - |
00:01 | 15.46 | 550.3 | 0.27 | - | - | - |
00:00 | 14.83 | 551.3 | -0.39 | - | - | - |
23:59 | 15.45 | 551.1 | -0.08 | - | - | - |
23:58 | 15.10 | 551.3 | 0.65 | - | - | - |
23:57 | 12.14 | 542.8 | -1.37 | - | - | - |
Built 2023-03-26 01:57 from source
Solar wind parameters of the latest hour by NOAA | |||
---|---|---|---|
parameter | min | max | mean |
IMF Bz [nT] | -1.4 | 2.4 | 0.9 |
velocity [km/s] | 549.4 | 555.5 | 552.4 |
density [cm-3] | 12.2 | 15.5 | 15.0 |
Geomagnetic activity (RX [nT]) | ||
---|---|---|
site | latest hour | next hour (RXmin, RXmax) |
Kevo (KEV) | 141 | 19 | 314 |
Maasi (MAS) | 166 | 22 | 360 |
Kilpisjärvi (KIL) | 180 | 17 | 311 |
Ivalo (IVA) | 141 | 13 | 352 |
Muonio (MUO) | 147 | 13 | 312 |
Sodankylä (SOD) | 134 | 11 | 290 |
Pello (PEL) | 136 | 9 | 266 |
Oulujärvi (OUJ) | 52 | 6 | 153 |
Mekrijärvi (MEK) | 16 | 3 | 37 |
Hankasalmi (HAN) | 14 | 4 | 67 |
Nurmijärvi (NUR) | 12 | 4 | 45 |
Tartu (TAR) | 13 | 3 | 27 |
low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2023-03-26 01:47 from source
Issue Time: 2023-03-25 20:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4325
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-26 09:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4325
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-26 09:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2023-03-25 11:01 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4324
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-25 21:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4324
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-25 21:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2023-03-24 20:05 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-24 20:04 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-24 20:04 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-24 17:19 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1759
Valid From: 2023-03-23 09:05 UTC
Now Valid Until: 2023-03-25 06:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1759
Valid From: 2023-03-23 09:05 UTC
Now Valid Until: 2023-03-25 06:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-24 17:18 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4323
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-25 12:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4323
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-25 12:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2023-03-24 09:01 UTC
EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 90
Valid From: 2023-03-23 22:50 UTC
Now Valid Until: 2023-03-24 12:00 UTC
Warning Condition: Persistence
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 90
Valid From: 2023-03-23 22:50 UTC
Now Valid Until: 2023-03-24 12:00 UTC
Warning Condition: Persistence
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-24 09:01 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-24 08:59 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-24 08:59 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-24 09:01 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 477
Valid From: 2023-03-23 14:20 UTC
Now Valid Until: 2023-03-24 18:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 477
Valid From: 2023-03-23 14:20 UTC
Now Valid Until: 2023-03-24 18:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-24 09:01 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1758
Valid From: 2023-03-23 09:05 UTC
Now Valid Until: 2023-03-24 18:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1758
Valid From: 2023-03-23 09:05 UTC
Now Valid Until: 2023-03-24 18:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-24 09:01 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4322
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-24 23:59 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4322
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-24 23:59 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2023-03-24 06:50 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-24 06:44 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-24 06:44 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-24 06:24 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-24 06:17 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-24 06:17 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-24 04:16 UTC
ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2023-03-24 04:04 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G4 - Severe
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.
ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2023-03-24 04:04 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G4 - Severe
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.
Issue Time: 2023-03-24 03:44 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-24 03:39 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-24 03:39 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-24 03:29 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-24 03:23 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-24 03:23 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-24 03:25 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-24 03:17 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-24 03:17 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-24 02:00 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 476
Valid From: 2023-03-23 14:20 UTC
Now Valid Until: 2023-03-24 12:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 476
Valid From: 2023-03-23 14:20 UTC
Now Valid Until: 2023-03-24 12:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-24 02:00 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1757
Valid From: 2023-03-23 09:05 UTC
Now Valid Until: 2023-03-24 15:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1757
Valid From: 2023-03-23 09:05 UTC
Now Valid Until: 2023-03-24 15:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-24 02:00 UTC
EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 89
Valid From: 2023-03-23 22:50 UTC
Now Valid Until: 2023-03-24 09:00 UTC
Warning Condition: Persistence
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 89
Valid From: 2023-03-23 22:50 UTC
Now Valid Until: 2023-03-24 09:00 UTC
Warning Condition: Persistence
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-24 01:57 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-24 01:55 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-24 01:55 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-24 00:27 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-24 00:25 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-24 00:25 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-24 00:15 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-24 00:14 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-24 00:14 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-23 23:55 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-23 23:54 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-23 23:54 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-23 22:51 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2023-03-23 22:50 UTC
Valid To: 2023-03-24 03:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater - Strong to Extreme
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2023-03-23 22:50 UTC
Valid To: 2023-03-24 03:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater - Strong to Extreme
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-23 21:48 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-23 21:46 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-23 21:46 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-23 21:36 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-23 21:33 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-23 21:33 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-23 21:22 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Mar 24: G2 (Moderate) Mar 25: G1 (Minor) Mar 26: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Mar 24: G2 (Moderate) Mar 25: G1 (Minor) Mar 26: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-23 20:06 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4321
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-24 15:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4321
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-24 15:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2023-03-23 19:50 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 475
Valid From: 2023-03-23 14:20 UTC
Now Valid Until: 2023-03-24 03:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 475
Valid From: 2023-03-23 14:20 UTC
Now Valid Until: 2023-03-24 03:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-23 19:46 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-23 19:42 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-23 19:42 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-23 17:25 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-23 17:22 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-23 17:22 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-23 15:31 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-23 14:49 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Comment: This alert is a correction. G3 conditions were first observed at 1449 UTC and not 1446 UTC as previously alerted on 23 Mar 2023 at 1450 UTC. This alert supercedes all previous G3 alerts.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-23 14:49 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Comment: This alert is a correction. G3 conditions were first observed at 1449 UTC and not 1446 UTC as previously alerted on 23 Mar 2023 at 1450 UTC. This alert supercedes all previous G3 alerts.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-23 14:50 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-23 14:46 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-03-23 14:46 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-23 14:47 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2023-03-23 14:47 UTC
Valid To: 2023-03-23 18:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater - Strong to Extreme
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2023-03-23 14:47 UTC
Valid To: 2023-03-23 18:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater - Strong to Extreme
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2023-03-23 14:26 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-23 14:23 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-03-23 14:23 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-23 14:21 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1756
Valid From: 2023-03-23 09:05 UTC
Now Valid Until: 2023-03-24 06:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1756
Valid From: 2023-03-23 09:05 UTC
Now Valid Until: 2023-03-24 06:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-23 14:20 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2023-03-23 14:20 UTC
Valid To: 2023-03-23 21:00 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2023-03-23 14:20 UTC
Valid To: 2023-03-23 21:00 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-03-23 12:36 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-23 12:34 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-03-23 12:34 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-23 09:05 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2023-03-23 09:05 UTC
Valid To: 2023-03-23 15:00 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2023-03-23 09:05 UTC
Valid To: 2023-03-23 15:00 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2023-03-23 09:05 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4320
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-23 21:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4320
Valid From: 2023-03-23 08:27 UTC
Now Valid Until: 2023-03-23 21:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2023-03-23 08:36 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023-03-23 08:36 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023-03-23 08:36 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2023-03-23 08:28 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023-03-23 08:27 UTC
Valid To: 2023-03-23 15:00 UTC
Warning Condition: Onset
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023-03-23 08:27 UTC
Valid To: 2023-03-23 15:00 UTC
Warning Condition: Onset
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Built 2023-03-25 20:57 from source