SettingsLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 16:15 | - | - | - | - | - | - |
| 16:14 | - | - | - | - | - | - |
| 16:13 | - | - | - | - | - | - |
| 16:12 | 1.81 | 525.3 | -5.53 | - | - | - |
| 16:11 | 2.27 | 559.3 | -5.44 | - | - | - |
| 16:10 | 1.93 | 551.3 | - | - | - | - |
| 16:09 | 2.30 | 539.1 | -5.36 | - | - | - |
| 16:08 | 3.22 | 505.4 | -5.87 | 3.2 | 505.4 | -5.9 |
| 16:07 | 1.69 | 537.1 | -4.12 | 1.7 | 537.1 | -4.1 |
| 16:06 | 1.36 | - | -3.91 | 1.4 | - | -3.9 |
| 16:05 | 1.36 | 542.0 | -3.45 | 1.4 | 542.0 | -3.4 |
| 16:04 | 1.37 | 551.5 | -1.73 | 1.4 | 551.5 | -1.7 |
| 16:03 | 1.35 | 547.3 | -1.61 | 1.3 | 547.3 | -1.6 |
| 16:02 | 1.34 | 546.8 | - | 1.3 | 546.8 | - |
| 16:01 | - | - | -2.32 | - | - | -2.3 |
| 16:00 | - | - | -4.82 | - | - | -4.8 |
| 15:59 | - | - | - | - | - | - |
| 15:58 | - | - | - | - | - | - |
| 15:57 | 1.65 | 526.2 | -4.70 | 1.6 | 526.2 | -4.7 |
| 15:56 | 1.37 | 524.1 | -5.31 | 1.4 | 524.1 | -5.3 |
| 15:55 | 1.73 | 556.1 | -5.75 | 1.7 | 556.1 | -5.7 |
| 15:54 | 2.80 | 556.7 | -5.96 | 2.8 | 556.7 | -6.0 |
| 15:53 | 4.45 | 542.5 | -5.92 | 4.5 | 542.5 | -5.9 |
| 15:52 | 2.36 | 534.0 | -5.68 | 2.4 | 534.0 | -5.7 |
| 15:51 | 2.63 | 553.7 | - | 2.6 | 553.7 | - |
| 15:50 | 2.07 | 556.7 | -5.24 | 2.1 | 556.7 | -5.2 |
| 15:49 | 1.60 | 497.9 | -5.49 | 1.6 | 497.9 | -5.5 |
| 15:48 | 5.49 | 604.9 | -4.95 | 5.5 | 604.9 | -4.9 |
| 15:47 | 5.62 | 608.6 | - | 5.6 | 608.6 | - |
| 15:46 | 1.60 | 553.6 | -2.03 | 1.6 | 553.6 | -2.0 |
| 15:45 | 1.00 | 522.0 | 0.85 | 1.0 | 522.0 | 0.8 |
| 15:44 | 0.82 | 512.4 | 1.25 | 0.8 | 512.4 | 1.2 |
| 15:43 | - | - | - | - | - | - |
| 15:42 | 1.48 | 552.9 | -0.25 | 1.5 | 552.9 | -0.3 |
| 15:41 | 1.25 | 541.1 | 0.98 | 1.2 | 541.1 | 1.0 |
| 15:40 | 1.05 | 548.0 | 1.75 | 1.0 | 548.0 | 1.8 |
| 15:39 | 1.36 | 579.8 | - | 1.4 | 579.8 | - |
| 15:38 | 1.66 | 591.6 | 3.11 | 1.7 | 591.6 | 3.1 |
| 15:37 | 1.45 | 588.1 | 2.49 | 1.5 | 588.1 | 2.5 |
| 15:36 | 1.83 | 577.7 | -1.68 | 1.8 | 577.7 | -1.7 |
| 15:35 | 1.09 | 567.1 | 0.39 | 1.1 | 567.1 | 0.4 |
| 15:34 | 1.57 | 580.9 | 0.72 | 1.6 | 580.9 | 0.7 |
| 15:33 | 0.66 | 534.5 | 0.80 | 0.7 | 534.5 | 0.8 |
| 15:32 | 0.66 | - | -0.59 | 0.7 | - | -0.6 |
| 15:31 | - | - | - | - | - | - |
| 15:30 | 2.21 | 559.6 | -5.55 | 2.2 | 559.6 | -5.6 |
| 15:29 | 1.57 | 547.6 | -4.87 | 1.6 | 547.6 | -4.9 |
| 15:28 | - | - | -4.12 | - | - | -4.1 |
| 15:27 | - | - | - | - | - | - |
| 15:26 | 1.33 | 537.1 | -1.59 | 1.3 | 537.1 | -1.6 |
| 15:25 | 1.19 | 547.8 | -0.74 | 1.2 | 547.8 | -0.7 |
| 15:24 | 1.08 | 560.3 | -2.02 | 1.1 | 560.3 | -2.0 |
| 15:23 | 1.04 | 583.5 | - | 1.0 | 583.5 | - |
| 15:22 | 0.94 | 596.6 | 0.45 | 0.9 | 596.6 | 0.4 |
| 15:21 | 1.02 | 542.1 | 3.16 | 1.0 | 542.1 | 3.2 |
| 15:20 | 0.84 | 584.0 | 3.54 | 0.8 | 584.0 | 3.5 |
| 15:19 | 0.84 | 586.5 | 2.90 | 0.8 | 586.5 | 2.9 |
| 15:18 | 0.82 | 606.3 | 2.24 | 0.8 | 606.3 | 2.2 |
| 15:17 | 0.71 | 551.7 | 2.41 | 0.7 | 551.7 | 2.4 |
| 15:16 | 0.90 | 610.0 | 0.25 | 0.9 | 610.0 | 0.3 |
| 15:15 | 0.90 | 612.1 | - | 0.9 | 612.1 | - |
| 15:14 | 0.66 | 561.3 | 1.36 | 0.7 | 561.3 | 1.4 |
| 15:13 | 1.06 | 586.2 | 1.07 | 1.1 | 586.2 | 1.1 |
| 15:12 | 0.97 | 582.3 | 1.49 | 1.0 | 582.3 | 1.5 |
| 15:11 | 0.88 | 577.4 | - | 0.9 | 577.4 | - |
| 15:10 | 1.00 | 568.4 | - | 1.0 | 568.4 | - |
| 15:09 | 1.01 | 578.3 | 0.78 | 1.0 | 578.3 | 0.8 |
| 15:08 | 1.02 | 584.0 | 0.53 | 1.0 | 584.0 | 0.5 |
| 15:07 | 1.02 | 578.4 | 0.97 | 1.0 | 578.4 | 1.0 |
| 15:06 | 1.09 | 585.1 | 0.92 | 1.1 | 585.1 | 0.9 |
| 15:05 | 1.10 | 588.1 | 1.89 | 1.1 | 588.1 | 1.9 |
| 15:04 | 1.11 | 594.8 | 2.00 | 1.1 | 594.8 | 2.0 |
| 15:03 | 1.00 | 579.6 | 1.51 | 1.0 | 579.6 | 1.5 |
| 15:02 | 0.84 | - | 0.08 | 0.8 | - | 0.1 |
| 15:01 | 0.84 | 580.2 | -0.11 | 0.8 | 580.2 | -0.1 |
| 15:00 | 0.89 | 588.5 | 0.20 | 0.9 | 588.5 | 0.2 |
| 14:59 | 0.85 | 571.3 | 0.34 | 0.8 | 571.3 | 0.3 |
| 14:58 | 0.84 | 569.3 | 2.19 | 0.8 | 569.3 | 2.2 |
| 14:57 | 0.89 | 585.5 | 0.84 | 0.9 | 585.5 | 0.8 |
| 14:56 | 1.63 | 540.7 | 1.08 | 1.6 | 540.7 | 1.1 |
| 14:55 | 2.12 | 542.1 | -1.19 | 2.1 | 542.1 | -1.2 |
| 14:54 | 2.22 | 554.1 | -1.66 | 2.2 | 554.1 | -1.7 |
| 14:53 | - | - | -1.57 | - | - | -1.6 |
| 14:52 | - | - | -1.89 | - | - | -1.9 |
| 14:51 | 1.97 | 516.5 | -1.94 | 2.0 | 516.5 | -1.9 |
| 14:50 | 1.95 | 519.8 | -1.52 | 2.0 | 519.8 | -1.5 |
| 14:49 | 1.87 | 524.5 | -0.35 | 1.9 | 524.5 | -0.3 |
| 14:48 | 1.63 | 539.9 | -1.57 | 1.6 | 539.9 | -1.6 |
| 14:47 | 1.85 | 540.3 | -1.19 | 1.8 | 540.3 | -1.2 |
| 14:46 | 1.84 | - | -2.26 | 1.8 | - | -2.3 |
| 14:45 | 1.84 | 534.8 | -1.79 | 1.8 | 534.8 | -1.8 |
| 14:44 | 1.97 | 528.0 | -1.65 | 2.0 | 528.0 | -1.7 |
| 14:43 | 1.95 | 529.2 | -1.86 | 1.9 | 529.2 | -1.9 |
| 14:42 | 1.94 | 529.4 | -3.43 | 1.9 | 529.4 | -3.4 |
| 14:41 | 2.02 | 534.2 | -2.83 | 2.0 | 534.2 | -2.8 |
| 14:40 | 2.18 | 538.6 | -2.34 | 2.2 | 538.6 | -2.3 |
| 14:39 | 1.72 | 529.4 | -2.23 | 1.7 | 529.4 | -2.2 |
| 14:38 | 1.42 | 523.0 | -3.02 | 1.4 | 523.0 | -3.0 |
| 14:37 | 1.83 | 540.7 | -1.38 | 1.8 | 540.7 | -1.4 |
| 14:36 | 1.95 | 540.9 | -1.83 | 1.9 | 540.9 | -1.8 |
| 14:35 | 2.10 | 541.1 | -2.31 | 2.1 | 541.1 | -2.3 |
| 14:34 | 1.88 | 528.3 | -1.82 | 1.9 | 528.3 | -1.8 |
| 14:33 | 1.74 | 530.3 | -1.21 | 1.7 | 530.3 | -1.2 |
| 14:32 | 1.20 | 541.3 | -0.47 | 1.2 | 541.3 | -0.5 |
| 14:31 | 0.77 | 562.9 | 0.36 | 0.8 | 562.9 | 0.4 |
| 14:30 | 0.73 | - | 1.67 | 0.7 | - | 1.7 |
| 14:29 | 0.73 | 577.0 | 0.39 | 0.7 | 577.0 | 0.4 |
| 14:28 | 0.74 | 575.2 | 1.17 | 0.7 | 575.2 | 1.2 |
| 14:27 | 1.27 | 548.6 | 0.13 | 1.3 | 548.6 | 0.1 |
| 14:26 | 1.33 | 545.7 | -1.28 | 1.3 | 545.7 | -1.3 |
| 14:25 | 0.68 | 562.6 | 1.15 | 0.7 | 562.6 | 1.2 |
| 14:24 | 0.61 | 560.4 | 0.68 | 0.6 | 560.4 | 0.7 |
| 14:23 | 0.58 | 559.5 | 0.43 | 0.6 | 559.5 | 0.4 |
| 14:22 | - | - | 0.95 | - | - | 1.0 |
| 14:21 | - | - | 1.14 | - | - | 1.1 |
| 14:20 | - | - | 1.00 | - | - | 1.0 |
| 14:19 | - | - | 0.30 | - | - | 0.3 |
| 14:18 | 0.93 | 594.9 | 0.38 | 0.9 | 594.9 | 0.4 |
| 14:17 | 0.93 | 592.7 | 0.58 | 0.9 | 592.7 | 0.6 |
| 14:16 | 0.91 | 582.5 | 0.69 | 0.9 | 582.5 | 0.7 |
Built 2026-01-12 16:16 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -6.0 | 3.5 | -0.7 |
| velocity [km/s] | 497.9 | 612.1 | 566.7 |
| density [cm-3] | 0.7 | 5.6 | 1.5 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 13 | 15 | 213 |
| Maasi (MAS) | 16 | 15 | 209 |
| Kilpisjärvi (KIL) | 24 | 14 | 214 |
| Ivalo (IVA) | 19 | 11 | 203 |
| Muonio (MUO) | 27 | 11 | 205 |
| Sodankylä (SOD) | 25 | 11 | 190 |
| Pello (PEL) | 26 | 11 | 178 |
| Oulujärvi (OUJ) | 16 | 9 | 103 |
| Mekrijärvi (MEK) | 9 | 6 | 47 |
| Hankasalmi (HAN) | 11 | 7 | 65 |
| Nurmijärvi (NUR) | - | 7 | 57 |
| Tartu (TAR) | 5 | 5 | 41 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2026-01-12 16:02 from source
Issue Time: 2026-01-12 11:01 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026-01-12 10:40 UTC
Station: GOES-19
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026-01-12 10:40 UTC
Station: GOES-19
Issue Time: 2026-01-12 09:02 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5217
Valid From: 2026-01-10 07:32 UTC
Now Valid Until: 2026-01-12 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: 5217
Valid From: 2026-01-10 07:32 UTC
Now Valid Until: 2026-01-12 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: 2026-01-11 19:19 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2169
Valid From: 2026-01-11 14:19 UTC
Now Valid Until: 2026-01-12 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: 2169
Valid From: 2026-01-11 14:19 UTC
Now Valid Until: 2026-01-12 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: 2026-01-11 19:19 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2026-01-11 19:17 UTC
Valid To: 2026-01-12 03:00 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: 2026-01-11 19:17 UTC
Valid To: 2026-01-12 03:00 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: 2026-01-11 19:19 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5216
Valid From: 2026-01-10 07:32 UTC
Now Valid Until: 2026-01-12 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: 5216
Valid From: 2026-01-10 07:32 UTC
Now Valid Until: 2026-01-12 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: 2026-01-11 19:09 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-01-11 19:09 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: 2026-01-11 19:09 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: 2026-01-11 17:28 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-01-11 17:28 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: 2026-01-11 17:28 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: 2026-01-11 14:39 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-01-11 14:39 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: 2026-01-11 14:39 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: 2026-01-11 14:19 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-01-11 14:19 UTC
Valid To: 2026-01-11 21:00 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: 2026-01-11 14:19 UTC
Valid To: 2026-01-11 21:00 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: 2026-01-11 11:06 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5215
Valid From: 2026-01-10 07:32 UTC
Now Valid Until: 2026-01-11 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: 5215
Valid From: 2026-01-10 07:32 UTC
Now Valid Until: 2026-01-11 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: 2026-01-11 03:03 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-01-11 02:59 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: 2026-01-11 02:59 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: 2026-01-10 23:27 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2026-01-10 23:22 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: 2026-01-10 23:22 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: 2026-01-10 21:37 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-01-10 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: 2026-01-10 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: 2026-01-10 21:37 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5214
Valid From: 2026-01-10 07:32 UTC
Now Valid Until: 2026-01-11 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: 5214
Valid From: 2026-01-10 07:32 UTC
Now Valid Until: 2026-01-11 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: 2026-01-10 20:53 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2026-01-10 20:50 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: 2026-01-10 20:50 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: 2026-01-10 20:44 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2026-01-10 20:43 UTC
Valid To: 2026-01-11 06:00 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: 2026-01-10 20:43 UTC
Valid To: 2026-01-11 06:00 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: 2026-01-10 20:44 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2167
Valid From: 2026-01-10 14:55 UTC
Now Valid Until: 2026-01-11 09:00 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: 2167
Valid From: 2026-01-10 14:55 UTC
Now Valid Until: 2026-01-11 09:00 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: 2026-01-10 20:35 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-01-10 20:35 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: 2026-01-10 20:35 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: 2026-01-10 20:32 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2026-01-10 20:13 UTC
Deviation: 47 nT
Station: HAD
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2026-01-10 20:13 UTC
Deviation: 47 nT
Station: HAD
Issue Time: 2026-01-10 19:56 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2026-01-10 20:07 UTC
Valid To: 2026-01-10 20:37 UTC
IP Shock Passage Observed: 2026-01-10 19:42 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2026-01-10 20:07 UTC
Valid To: 2026-01-10 20:37 UTC
IP Shock Passage Observed: 2026-01-10 19:42 UTC
Issue Time: 2026-01-10 15:42 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026-01-10 15:25 UTC
Station: GOES19
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026-01-10 15:25 UTC
Station: GOES19
Issue Time: 2026-01-10 14:56 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-01-10 14:55 UTC
Valid To: 2026-01-10 23:59 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: 2026-01-10 14:55 UTC
Valid To: 2026-01-10 23:59 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: 2026-01-10 09:04 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-01-10 08:59 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: 2026-01-10 08:59 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: 2026-01-10 07:33 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-01-10 07:32 UTC
Valid To: 2026-01-10 23:59 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: 2026-01-10 07:32 UTC
Valid To: 2026-01-10 23:59 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.
Issue Time: 2026-01-09 20:41 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-01-09 20:41 UTC
Valid To: 2026-01-10 06:00 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: 2026-01-09 20:41 UTC
Valid To: 2026-01-10 06:00 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.
Issue Time: 2026-01-09 20:06 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Jan 10: G1 (Minor) Jan 11: G1 (Minor) Jan 12: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: CMEs associated with a filament eruption from 08 Jan, coupled with ongoing CH HSS effects, are likely to bring G1 (Minor) geomagnetic storming conditions by late 10 Jan continuing into 11 Jan.
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
Jan 10: G1 (Minor) Jan 11: G1 (Minor) Jan 12: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: CMEs associated with a filament eruption from 08 Jan, coupled with ongoing CH HSS effects, are likely to bring G1 (Minor) geomagnetic storming conditions by late 10 Jan continuing into 11 Jan.
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: 2026-01-09 15:17 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-01-09 12:44 UTC
Estimated Velocity: 200 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
ALERT: Type II Radio Emission
Begin Time: 2026-01-09 12:44 UTC
Estimated Velocity: 200 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Built 2026-01-12 14:58 from source
