SettingsLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 04:08 | - | - | - | - | - | - |
| 04:07 | - | - | - | - | - | - |
| 04:06 | 3.71 | 547.4 | -3.79 | - | - | - |
| 04:05 | 3.35 | 538.2 | -5.39 | - | - | - |
| 04:04 | 2.31 | 518.2 | -5.48 | - | - | - |
| 04:03 | 0.93 | 450.8 | -6.26 | - | - | - |
| 04:02 | 3.29 | 516.8 | -6.44 | - | - | - |
| 04:01 | 3.50 | 550.2 | -6.09 | - | - | - |
| 04:00 | 3.47 | 552.9 | -6.52 | - | - | - |
| 03:59 | 2.70 | 552.6 | - | - | - | - |
| 03:58 | 2.41 | 555.0 | -7.25 | - | - | - |
| 03:57 | 2.78 | 570.9 | -7.14 | - | - | - |
| 03:56 | 2.70 | 557.8 | -7.22 | - | - | - |
| 03:55 | 2.94 | 521.7 | -6.90 | - | - | - |
| 03:54 | 2.72 | 531.2 | -7.06 | - | - | - |
| 03:53 | 1.11 | 479.5 | -7.50 | - | - | - |
| 03:52 | 1.61 | 511.3 | -7.42 | - | - | - |
| 03:51 | 2.85 | 534.9 | -7.17 | - | - | - |
| 03:50 | 3.16 | 528.4 | -6.90 | - | - | - |
| 03:49 | 2.24 | 517.6 | -5.49 | - | - | - |
| 03:48 | 0.40 | 452.2 | -5.51 | - | - | - |
| 03:47 | 3.47 | 515.4 | -5.11 | 3.5 | 515.4 | -5.1 |
| 03:46 | 3.51 | 523.6 | -4.65 | 3.5 | 523.6 | -4.7 |
| 03:45 | 3.74 | 563.8 | -4.66 | 3.7 | 563.8 | -4.7 |
| 03:44 | 4.40 | 559.4 | -4.06 | 4.4 | 559.4 | -4.1 |
| 03:43 | 4.08 | 556.5 | -5.47 | 4.1 | 556.5 | -5.5 |
| 03:42 | 3.45 | 511.7 | -4.12 | 3.5 | 511.7 | -4.1 |
| 03:41 | 4.08 | 545.7 | -3.09 | 4.1 | 545.7 | -3.1 |
| 03:40 | 7.18 | 543.3 | -4.85 | 7.2 | 543.3 | -4.9 |
| 03:39 | 5.29 | 559.5 | -6.29 | 5.3 | 559.5 | -6.3 |
| 03:38 | 4.00 | 534.0 | -6.15 | 4.0 | 534.0 | -6.2 |
| 03:37 | 4.00 | 555.6 | -5.44 | 4.0 | 555.6 | -5.4 |
| 03:36 | 4.14 | 563.5 | -6.10 | 4.1 | 563.5 | -6.1 |
| 03:35 | 4.89 | 522.7 | -5.85 | 4.9 | 522.7 | -5.9 |
| 03:34 | 5.57 | 514.7 | -3.37 | 5.6 | 514.7 | -3.4 |
| 03:33 | 5.60 | 553.8 | -2.53 | 5.6 | 553.8 | -2.5 |
| 03:32 | 5.76 | 562.6 | -1.94 | 5.8 | 562.6 | -1.9 |
| 03:31 | 5.56 | 543.7 | 0.75 | 5.6 | 543.7 | 0.8 |
| 03:30 | 5.24 | 535.4 | 1.07 | 5.2 | 535.4 | 1.1 |
| 03:29 | 6.13 | 595.2 | 3.04 | 6.1 | 595.2 | 3.0 |
| 03:28 | 7.06 | 612.4 | 4.40 | 7.1 | 612.4 | 4.4 |
| 03:27 | 5.93 | 575.9 | 4.89 | 5.9 | 575.9 | 4.9 |
| 03:26 | 5.10 | 497.2 | 3.91 | 5.1 | 497.2 | 3.9 |
| 03:25 | 5.51 | 554.0 | 5.96 | 5.5 | 554.0 | 6.0 |
| 03:24 | 5.23 | 560.5 | 5.76 | 5.2 | 560.5 | 5.8 |
| 03:23 | 5.98 | 572.5 | 1.05 | 6.0 | 572.5 | 1.1 |
| 03:22 | 5.14 | 519.5 | -0.32 | 5.1 | 519.5 | -0.3 |
| 03:21 | 5.61 | 531.8 | -0.80 | 5.6 | 531.8 | -0.8 |
| 03:20 | 5.99 | 551.1 | -2.27 | 6.0 | 551.1 | -2.3 |
| 03:19 | 6.03 | 552.2 | -2.24 | 6.0 | 552.2 | -2.2 |
| 03:18 | 5.68 | 543.7 | -2.45 | 5.7 | 543.7 | -2.5 |
| 03:17 | 5.26 | 534.5 | -2.54 | 5.3 | 534.5 | -2.5 |
| 03:16 | 5.74 | 549.0 | -3.14 | 5.7 | 549.0 | -3.1 |
| 03:15 | 5.87 | 561.3 | -3.57 | 5.9 | 561.3 | -3.6 |
| 03:14 | 5.60 | 552.7 | -3.97 | 5.6 | 552.7 | -4.0 |
| 03:13 | 5.65 | 556.0 | -4.72 | 5.6 | 556.0 | -4.7 |
| 03:12 | 6.04 | 584.0 | -3.54 | 6.0 | 584.0 | -3.5 |
| 03:11 | 5.61 | 555.5 | -2.42 | 5.6 | 555.5 | -2.4 |
| 03:10 | 5.54 | 521.3 | -2.74 | 5.5 | 521.3 | -2.7 |
| 03:09 | 5.24 | 544.0 | -3.33 | 5.2 | 544.0 | -3.3 |
| 03:08 | 9.98 | 537.3 | -7.01 | 10.0 | 537.3 | -7.0 |
| 03:07 | 6.82 | 559.0 | -8.97 | 6.8 | 559.0 | -9.0 |
| 03:06 | 5.80 | 504.0 | -10.11 | 5.8 | 504.0 | -10.1 |
| 03:05 | 5.68 | 499.6 | -11.81 | 5.7 | 499.6 | -11.8 |
| 03:04 | 6.13 | 524.2 | -11.29 | 6.1 | 524.2 | -11.3 |
| 03:03 | 6.56 | 552.5 | -10.61 | 6.6 | 552.5 | -10.6 |
| 03:02 | 5.65 | 534.6 | -10.08 | 5.6 | 534.6 | -10.1 |
| 03:01 | 5.14 | 510.6 | -10.24 | 5.1 | 510.6 | -10.2 |
| 03:00 | 6.14 | 548.7 | -8.58 | 6.1 | 548.7 | -8.6 |
| 02:59 | 5.89 | 544.8 | -9.46 | 5.9 | 544.8 | -9.5 |
| 02:58 | 5.91 | 554.3 | -9.92 | 5.9 | 554.3 | -9.9 |
| 02:57 | 5.54 | 502.3 | -10.10 | 5.5 | 502.3 | -10.1 |
| 02:56 | 6.10 | 538.6 | -10.55 | 6.1 | 538.6 | -10.6 |
| 02:55 | 6.21 | 531.5 | -10.08 | 6.2 | 531.5 | -10.1 |
| 02:54 | 6.00 | 547.4 | -10.11 | 6.0 | 547.4 | -10.1 |
| 02:53 | 5.67 | 514.7 | -10.89 | 5.7 | 514.7 | -10.9 |
| 02:52 | 5.89 | 528.8 | -10.81 | 5.9 | 528.8 | -10.8 |
| 02:51 | 1.57 | 459.3 | -11.08 | 1.6 | 459.3 | -11.1 |
| 02:50 | 3.75 | 480.8 | -10.97 | 3.8 | 480.8 | -11.0 |
| 02:49 | 5.36 | 516.9 | -10.95 | 5.4 | 516.9 | -11.0 |
| 02:48 | 5.30 | 524.7 | -10.88 | 5.3 | 524.7 | -10.9 |
| 02:47 | 5.43 | 534.7 | -11.07 | 5.4 | 534.7 | -11.1 |
| 02:46 | 5.24 | 515.0 | -11.38 | 5.2 | 515.0 | -11.4 |
| 02:45 | 5.20 | 499.1 | -11.10 | 5.2 | 499.1 | -11.1 |
| 02:44 | 5.97 | 537.6 | -11.17 | 6.0 | 537.6 | -11.2 |
| 02:43 | 5.73 | 525.7 | -9.67 | 5.7 | 525.7 | -9.7 |
| 02:42 | 5.68 | 522.7 | -9.45 | 5.7 | 522.7 | -9.4 |
| 02:41 | 5.43 | 539.2 | -12.31 | 5.4 | 539.2 | -12.3 |
| 02:40 | 5.46 | 539.8 | -11.84 | 5.5 | 539.8 | -11.8 |
| 02:39 | 6.24 | 555.7 | -12.11 | 6.2 | 555.7 | -12.1 |
| 02:38 | 0.34 | 447.1 | -12.33 | 0.3 | 447.1 | -12.3 |
| 02:37 | 4.41 | 491.4 | -13.06 | 4.4 | 491.4 | -13.1 |
| 02:36 | 5.25 | 532.0 | -13.01 | 5.2 | 532.0 | -13.0 |
| 02:35 | 1.41 | 469.8 | -12.74 | 1.4 | 469.8 | -12.7 |
| 02:34 | 3.32 | 514.1 | -12.57 | 3.3 | 514.1 | -12.6 |
| 02:33 | 4.64 | 516.1 | -13.00 | 4.6 | 516.1 | -13.0 |
| 02:32 | 4.67 | 510.3 | -13.48 | 4.7 | 510.3 | -13.5 |
| 02:31 | 2.56 | 476.9 | -13.42 | 2.6 | 476.9 | -13.4 |
| 02:30 | 2.18 | 473.4 | -13.44 | 2.2 | 473.4 | -13.4 |
| 02:29 | 4.88 | 516.4 | -13.23 | 4.9 | 516.4 | -13.2 |
| 02:28 | 5.57 | 513.2 | -13.86 | 5.6 | 513.2 | -13.9 |
| 02:27 | 5.76 | 535.1 | -13.59 | 5.8 | 535.1 | -13.6 |
| 02:26 | 6.36 | 549.2 | -13.80 | 6.4 | 549.2 | -13.8 |
| 02:25 | 5.38 | 488.0 | -14.12 | 5.4 | 488.0 | -14.1 |
| 02:24 | 5.74 | 527.4 | -12.87 | 5.7 | 527.4 | -12.9 |
| 02:23 | 5.21 | 531.4 | -13.29 | 5.2 | 531.4 | -13.3 |
| 02:22 | 6.27 | 560.4 | -13.34 | 6.3 | 560.4 | -13.3 |
| 02:21 | 5.86 | 510.2 | -14.06 | 5.9 | 510.2 | -14.1 |
| 02:20 | 5.71 | 520.1 | -14.55 | 5.7 | 520.1 | -14.5 |
| 02:19 | 4.54 | 549.1 | -15.03 | 4.5 | 549.1 | -15.0 |
| 02:18 | 5.38 | 559.5 | -15.54 | 5.4 | 559.5 | -15.5 |
| 02:17 | 5.58 | 516.4 | -15.57 | 5.6 | 516.4 | -15.6 |
| 02:16 | 5.78 | 519.2 | -15.29 | 5.8 | 519.2 | -15.3 |
| 02:15 | 6.32 | 546.8 | -15.15 | 6.3 | 546.8 | -15.2 |
| 02:14 | 6.62 | 547.3 | -15.03 | 6.6 | 547.3 | -15.0 |
| 02:13 | 6.36 | 542.0 | -14.07 | 6.4 | 542.0 | -14.1 |
| 02:12 | 5.87 | 542.4 | -16.11 | 5.9 | 542.4 | -16.1 |
| 02:11 | 5.37 | 533.2 | -16.34 | 5.4 | 533.2 | -16.3 |
| 02:10 | 3.61 | 525.3 | -15.35 | 3.6 | 525.3 | -15.4 |
| 02:09 | 5.07 | 536.8 | -13.97 | 5.1 | 536.8 | -14.0 |
Built 2024-09-17 04:09 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -11.8 | 6.0 | -4.3 |
| velocity [km/s] | 452.2 | 612.4 | 539.9 |
| density [cm-3] | 0.4 | 10.0 | 5.0 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 563 | 23 | 259 |
| Maasi (MAS) | 568 | 22 | 272 |
| Kilpisjärvi (KIL) | 549 | 26 | 312 |
| Ivalo (IVA) | 591 | 20 | 253 |
| Muonio (MUO) | 593 | 18 | 278 |
| Sodankylä (SOD) | 676 | 17 | 240 |
| Pello (PEL) | 628 | 16 | 196 |
| Oulujärvi (OUJ) | 582 | 11 | 140 |
| Mekrijärvi (MEK) | 473 | 7 | 34 |
| Hankasalmi (HAN) | 318 | 7 | 73 |
| Nurmijärvi (NUR) | 189 | 7 | 53 |
| Tartu (TAR) | 99 | 5 | 35 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2024-09-17 04:02 from source
Issue Time: 2024-09-17 03:53 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024-09-17 03:46 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: 2024-09-17 03:46 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: 2024-09-17 03:31 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-09-17 03:31 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: 2024-09-17 03:31 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: 2024-09-17 03:00 UTC
ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2024-09-17 02:57 UTC
Synoptic Period: 0000-0300 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: 2024-09-17 02:57 UTC
Synoptic Period: 0000-0300 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: 2024-09-17 01:28 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024-09-17 01:27 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: 2024-09-17 01:27 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: 2024-09-17 01:18 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2024-09-17 01:20 UTC
Valid To: 2024-09-17 12:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater
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: 2024-09-17 01:20 UTC
Valid To: 2024-09-17 12:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater
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: 2024-09-17 01:14 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024-09-17 01:13 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: 2024-09-17 01:13 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: 2024-09-17 01:05 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-09-17 01:03 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: 2024-09-17 01:03 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: 2024-09-17 01:05 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024-09-17 01:05 UTC
Valid To: 2024-09-17 12:00 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: 2024-09-17 01:05 UTC
Valid To: 2024-09-17 12:00 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: 2024-09-16 23:41 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024-09-16 23:29 UTC
Deviation: 39 nT
Station: BOU
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024-09-16 23:29 UTC
Deviation: 39 nT
Station: BOU
Issue Time: 2024-09-16 23:32 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4697
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-17 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: 4697
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-17 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: 2024-09-16 23:32 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-09-16 23:35 UTC
Valid To: 2024-09-17 12:00 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: 2024-09-16 23:35 UTC
Valid To: 2024-09-17 12:00 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: 2024-09-16 23:02 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024-09-16 23:10 UTC
Valid To: 2024-09-17 00:10 UTC
IP Shock Passage Observed: 2024-09-16 22:49 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024-09-16 23:10 UTC
Valid To: 2024-09-17 00:10 UTC
IP Shock Passage Observed: 2024-09-16 22:49 UTC
Issue Time: 2024-09-16 14:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4696
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-17 03:00 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: 4696
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-17 03:00 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: 2024-09-16 10:28 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-09-16 10:28 UTC
Valid To: 2024-09-16 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: 2024-09-16 10:28 UTC
Valid To: 2024-09-16 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: 2024-09-16 10:16 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3400
Begin Time: 2024-09-15 12:15 UTC
Yesterday Maximum 2MeV Flux: 1693 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3400
Begin Time: 2024-09-15 12:15 UTC
Yesterday Maximum 2MeV Flux: 1693 pfu
Issue Time: 2024-09-16 08:45 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4695
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 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: 4695
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 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: 2024-09-16 02:46 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4694
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 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: 4694
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 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: 2024-09-15 17:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4693
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 03:00 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: 4693
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 03:00 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: 2024-09-15 12:30 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2024-09-15 12:15 UTC
Station: GOES16
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2024-09-15 12:15 UTC
Station: GOES16
Issue Time: 2024-09-15 11:27 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4692
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-15 18:00 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: 4692
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-15 18:00 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: 2024-09-14 22:58 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4691
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-15 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: 4691
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-15 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: 2024-09-14 21:04 UTC
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Sep 15: None (Below G1) Sep 16: G3 (Strong) Sep 17: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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.
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Sep 15: None (Below G1) Sep 16: G3 (Strong) Sep 17: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 2024-09-14 16:30 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2024-09-14 15:17 UTC
Maximum Time: 2024-09-14 15:32 UTC
End Time: 2024-09-14 15:55 UTC
Duration: 38 minutes
Peak Flux: 1000 sfu
Latest Penticton Noon Flux: 186 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
SUMMARY: 10cm Radio Burst
Begin Time: 2024-09-14 15:17 UTC
Maximum Time: 2024-09-14 15:32 UTC
End Time: 2024-09-14 15:55 UTC
Duration: 38 minutes
Peak Flux: 1000 sfu
Latest Penticton Noon Flux: 186 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Issue Time: 2024-09-14 15:53 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2024-09-14 15:13 UTC
Maximum Time: 2024-09-14 15:29 UTC
End Time: 2024-09-14 15:47 UTC
X-ray Class: X4.5
Optical Class: 2b
Location: S18E62
NOAA Scale: R3 - Strong
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
SUMMARY: X-ray Event exceeded X1
Begin Time: 2024-09-14 15:13 UTC
Maximum Time: 2024-09-14 15:29 UTC
End Time: 2024-09-14 15:47 UTC
X-ray Class: X4.5
Optical Class: 2b
Location: S18E62
NOAA Scale: R3 - Strong
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Issue Time: 2024-09-14 15:21 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024-09-14 15:18 UTC
NOAA Scale: R2 - Moderate
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024-09-14 15:18 UTC
NOAA Scale: R2 - Moderate
Built 2024-09-17 03:55 from source
