SettingsLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 19:39 | - | - | - | - | - | - |
| 19:38 | - | - | - | - | - | - |
| 19:37 | - | - | - | - | - | - |
| 19:36 | - | - | - | - | - | - |
| 19:35 | - | - | - | - | - | - |
| 19:34 | - | - | - | - | - | - |
| 19:33 | - | - | - | - | - | - |
| 19:32 | - | - | - | - | - | - |
| 19:31 | - | - | - | - | - | - |
| 19:30 | - | - | - | - | - | - |
| 19:29 | - | - | - | - | - | - |
| 19:28 | - | - | - | - | - | - |
| 19:27 | - | - | - | - | - | - |
| 19:26 | - | - | - | 0.1 | 553.8 | 0.7 |
| 19:25 | - | - | - | 0.1 | 555.5 | 0.7 |
| 19:24 | - | - | - | 0.1 | 555.0 | 0.8 |
| 19:23 | - | - | - | 0.1 | 555.4 | 0.8 |
| 19:22 | - | - | - | 0.1 | 554.1 | 0.8 |
| 19:21 | - | - | - | 0.1 | 553.6 | 0.8 |
| 19:20 | - | - | - | 0.1 | 555.6 | 0.8 |
| 19:19 | - | - | - | 0.1 | 555.7 | 0.7 |
| 19:18 | - | - | - | 0.1 | 555.6 | 0.7 |
| 19:17 | - | - | - | 0.0 | 555.3 | 0.7 |
| 19:16 | - | - | - | 0.1 | 555.6 | 0.7 |
| 19:15 | - | - | - | 0.1 | 555.0 | 0.7 |
| 19:14 | - | - | - | 0.1 | 557.5 | 0.8 |
| 19:13 | - | - | - | 0.1 | 564.9 | 0.9 |
| 19:12 | - | - | - | 0.1 | 566.6 | 0.9 |
| 19:11 | - | - | - | 0.0 | 548.2 | 0.9 |
| 19:10 | - | - | - | 0.1 | 568.2 | 0.9 |
| 19:09 | - | - | - | 0.1 | 557.3 | 0.8 |
| 19:08 | - | - | - | 0.1 | 551.0 | 0.8 |
| 19:07 | - | - | - | 0.0 | 538.3 | 0.8 |
| 19:06 | - | - | - | 0.1 | 549.4 | 0.8 |
| 19:05 | - | - | - | 0.1 | 566.2 | 0.8 |
| 19:04 | - | - | - | 0.1 | 560.2 | 0.9 |
| 19:03 | - | - | - | 0.0 | 555.7 | 0.8 |
| 19:02 | - | - | - | 0.0 | 557.6 | 0.8 |
| 19:01 | - | - | - | 0.1 | 558.7 | 0.8 |
| 19:00 | - | - | - | 0.0 | 559.2 | 1.0 |
| 18:59 | - | - | - | 0.1 | 560.0 | - |
| 18:58 | - | - | - | - | - | 1.0 |
| 18:57 | - | - | - | 0.0 | 557.7 | 1.0 |
| 18:56 | - | - | - | 0.1 | 558.9 | 1.0 |
| 18:55 | - | - | - | 0.0 | 560.5 | 1.0 |
| 18:54 | - | - | - | 0.1 | 560.2 | 1.0 |
| 18:53 | - | - | - | 0.0 | 558.8 | 1.0 |
| 18:52 | - | - | - | 0.1 | 559.3 | 0.9 |
| 18:51 | - | - | - | 0.0 | 560.8 | 0.9 |
| 18:50 | - | - | - | 0.1 | 560.2 | 0.9 |
| 18:49 | - | - | - | 0.1 | 559.2 | 0.9 |
| 18:48 | - | - | - | 0.1 | 559.7 | 1.0 |
| 18:47 | - | - | - | 0.1 | 559.7 | 1.0 |
| 18:46 | - | - | - | 0.0 | 558.3 | 1.0 |
| 18:45 | - | - | - | 0.1 | 558.2 | 1.0 |
| 18:44 | - | - | - | 0.1 | 560.0 | 1.0 |
| 18:43 | - | - | - | 0.1 | 558.8 | 1.0 |
| 18:42 | - | - | - | 0.1 | 559.1 | 1.1 |
| 18:41 | - | - | - | 0.1 | 560.2 | 1.1 |
| 18:40 | - | - | - | 0.1 | 559.6 | 1.1 |
| 18:39 | - | - | - | 0.0 | 555.2 | 1.1 |
| 18:38 | - | - | - | 0.1 | 559.5 | 1.1 |
| 18:37 | - | - | - | 0.1 | 560.4 | 1.1 |
| 18:36 | - | - | - | 0.1 | 560.6 | 1.2 |
| 18:35 | - | - | - | 0.1 | 559.1 | 1.2 |
| 18:34 | - | - | - | 0.1 | 559.5 | 1.2 |
| 18:33 | - | - | - | 0.1 | 565.2 | 1.2 |
| 18:32 | - | - | - | 0.1 | 571.7 | 1.2 |
| 18:31 | - | - | - | 0.1 | 562.1 | 1.1 |
| 18:30 | - | - | - | 0.0 | 546.0 | 1.1 |
| 18:29 | - | - | - | 0.1 | 570.9 | 1.1 |
| 18:28 | - | - | - | 0.0 | 554.7 | 1.1 |
| 18:27 | - | - | - | 0.0 | 554.5 | 1.1 |
| 18:26 | - | - | - | - | - | 1.1 |
| 18:25 | - | - | - | - | - | 1.0 |
| 18:24 | - | - | - | 0.0 | 535.3 | 1.0 |
| 18:23 | - | - | - | 0.1 | 557.6 | 1.0 |
| 18:22 | - | - | - | 0.1 | 561.4 | 1.0 |
| 18:21 | - | - | - | 0.1 | 561.1 | 0.9 |
| 18:20 | - | - | - | 0.1 | 561.7 | 0.9 |
| 18:19 | - | - | - | 0.1 | 562.1 | 0.9 |
| 18:18 | - | - | - | 0.1 | 563.0 | 0.8 |
| 18:17 | - | - | - | 0.1 | 562.8 | 0.8 |
| 18:16 | - | - | - | 0.1 | 562.5 | 0.8 |
| 18:15 | - | - | - | 0.1 | 563.8 | 0.8 |
| 18:14 | - | - | - | 0.1 | 563.7 | 0.9 |
| 18:13 | - | - | - | 0.1 | 563.9 | 0.9 |
| 18:12 | - | - | - | 0.1 | 562.5 | 0.9 |
| 18:11 | - | - | - | 0.1 | 565.4 | 0.8 |
| 18:10 | - | - | - | 0.1 | 561.5 | 0.8 |
| 18:09 | - | - | - | 0.1 | 565.6 | 0.8 |
| 18:08 | - | - | - | 0.1 | 563.1 | 0.9 |
| 18:07 | - | - | - | 0.1 | 563.8 | 0.9 |
| 18:06 | - | - | - | 0.1 | 562.1 | 0.9 |
| 18:05 | - | - | - | 0.1 | 565.1 | 0.9 |
| 18:04 | - | - | - | 0.1 | 564.7 | 0.9 |
| 18:03 | - | - | - | 0.1 | 564.3 | 0.9 |
| 18:02 | - | - | - | 0.1 | 563.5 | 0.9 |
| 18:01 | - | - | - | 0.1 | 564.5 | 1.0 |
| 18:00 | - | - | - | 0.1 | 566.3 | 0.9 |
| 17:59 | - | - | - | 0.1 | 565.3 | 0.9 |
| 17:58 | - | - | - | 0.1 | 565.4 | 0.9 |
| 17:57 | - | - | - | 0.1 | 564.4 | 0.8 |
| 17:56 | - | - | - | 0.1 | 566.1 | 0.7 |
| 17:55 | - | - | - | 0.1 | 556.7 | 0.7 |
| 17:54 | - | - | - | 0.1 | 575.2 | 0.7 |
| 17:53 | - | - | - | - | - | 0.8 |
| 17:52 | - | - | - | - | - | 0.8 |
| 17:51 | - | - | - | 0.1 | 569.0 | 0.7 |
| 17:50 | - | - | - | 0.1 | 561.9 | 0.8 |
| 17:49 | - | - | - | 0.1 | 541.0 | 0.7 |
| 17:48 | - | - | - | 0.1 | 551.9 | 0.7 |
| 17:47 | - | - | - | 0.1 | 559.3 | 0.8 |
| 17:46 | - | - | - | 0.1 | 565.8 | 0.7 |
| 17:45 | - | - | - | 0.1 | 567.5 | 0.6 |
| 17:44 | - | - | - | 0.1 | 561.4 | 0.6 |
| 17:43 | - | - | - | 0.1 | 562.4 | 0.6 |
| 17:42 | - | - | - | 0.1 | 559.9 | 0.6 |
| 17:41 | - | - | - | 0.1 | 560.5 | 0.6 |
| 17:40 | - | - | - | 0.1 | 559.7 | 0.6 |
Built 2026-10-11 19:40 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | 0.8 | 1.3 | 1.1 |
| velocity [km/s] | 525.3 | 539.1 | 535.8 |
| density [cm-3] | 0.6 | 0.8 | 0.6 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 89 | 5 | 263 |
| Maasi (MAS) | 83 | 5 | 235 |
| Kilpisjärvi (KIL) | 70 | 5 | 227 |
| Ivalo (IVA) | 72 | 4 | 233 |
| Muonio (MUO) | 62 | 4 | 191 |
| Sodankylä (SOD) | 48 | 5 | 258 |
| Pello (PEL) | 33 | 4 | 199 |
| Oulujärvi (OUJ) | 12 | 4 | 65 |
| Mekrijärvi (MEK) | 13 | 3 | 30 |
| Hankasalmi (HAN) | 23 | 3 | 39 |
| Nurmijärvi (NUR) | - | 3 | 36 |
| Tartu (TAR) | 8 | 3 | 24 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2026-10-11 19:32 from source
Issue Time: 2026-10-11 19:11 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Oct 12: None (Below G1) Oct 13: G1 (Minor) Oct 14: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment
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
Oct 12: None (Below G1) Oct 13: G1 (Minor) Oct 14: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment
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: 2026-10-11 17:02 UTC
CANCEL WATCH: Geomagnetic Storm Category G2 Predicted
Cancel Serial Number: 285
Original Issue Time: 2026-10-09 16:36 UTC
Cancelled Level Predicted
Oct 11: None (Below G1)
Conditions no longer warrant a G2 Watch.
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.
CANCEL WATCH: Geomagnetic Storm Category G2 Predicted
Cancel Serial Number: 285
Original Issue Time: 2026-10-09 16:36 UTC
Cancelled Level Predicted
Oct 11: None (Below G1)
Conditions no longer warrant a G2 Watch.
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: 2026-10-11 04:57 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5431
Valid From: 2026-10-09 01:28 UTC
Now Valid Until: 2026-10-11 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: 5431
Valid From: 2026-10-09 01:28 UTC
Now Valid Until: 2026-10-11 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: 2026-10-10 21:45 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-10-10 21:45 UTC
Synoptic Period: 2100-2400
Active Warning: YES
Noaa Scale: G1 - Minor
Comment
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: 2026-10-10 21:45 UTC
Synoptic Period: 2100-2400
Active Warning: YES
Noaa Scale: G1 - Minor
Comment
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: 2026-10-10 19:27 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2026-10-10 19:26 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Noaa Scale: G3 - Strong
Comment
NOAA Scale: G3 - Strong
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2026-10-10 19:26 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Noaa Scale: G3 - Strong
Comment
NOAA Scale: G3 - Strong
Issue Time: 2026-10-10 18:37 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2026-10-10 18:37 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Noaa Scale: G2 - Moderate
Comment
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: 2026-10-10 18:37 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Noaa Scale: G2 - Moderate
Comment
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: 2026-10-10 18:18 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-10-10 18:18 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Noaa Scale: G1 - Minor
Comment
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: 2026-10-10 18:18 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Noaa Scale: G1 - Minor
Comment
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: 2026-10-10 17:58 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2026-10-10 17:58 UTC
Synoptic Period: 1500-1800
Active Warning: YES
Noaa Scale: G3 - Strong
Comment
NOAA Scale: G3 - Strong
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2026-10-10 17:58 UTC
Synoptic Period: 1500-1800
Active Warning: YES
Noaa Scale: G3 - Strong
Comment
NOAA Scale: G3 - Strong
Issue Time: 2026-10-10 17:42 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2026-10-10 17:42 UTC
Valid To: 2026-10-10 23:59 UTC
Warning Conditions: Onset
Noaa Scale: G3 - Greater
Comment
NOAA Scale: G3 - Greater
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2026-10-10 17:42 UTC
Valid To: 2026-10-10 23:59 UTC
Warning Conditions: Onset
Noaa Scale: G3 - Greater
Comment
NOAA Scale: G3 - Greater
Issue Time: 2026-10-10 17:18 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2026-10-10 17:17 UTC
Synoptic Period: 1500-1800
Active Warning: YES
Noaa Scale: G2 - Moderate
Comment
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: 2026-10-10 17:17 UTC
Synoptic Period: 1500-1800
Active Warning: YES
Noaa Scale: G2 - Moderate
Comment
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: 2026-10-10 15:35 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-10-10 15:35 UTC
Synoptic Period: 1500-1800
Active Warning: YES
Noaa Scale: G1 - Minor
Comment
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: 2026-10-10 15:35 UTC
Synoptic Period: 1500-1800
Active Warning: YES
Noaa Scale: G1 - Minor
Comment
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: 2026-10-10 15:27 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2026-10-10 14:58 UTC
Maximum Time: 2026-10-10 15:10 UTC
End Time: 2026-10-10 15:20 UTC
Xray Class: M6.4
Optical Class
Location: N08W50
Noaa Scale: R2 - Moderate
Comment
NOAA Scale: R2 - Moderate
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
SUMMARY: X-ray Event exceeded M5
Begin Time: 2026-10-10 14:58 UTC
Maximum Time: 2026-10-10 15:10 UTC
End Time: 2026-10-10 15:20 UTC
Xray Class: M6.4
Optical Class
Location: N08W50
Noaa Scale: R2 - Moderate
Comment
NOAA Scale: R2 - Moderate
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
Issue Time: 2026-10-10 15:26 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-10-10 15:15 UTC
Estimate Velocity: 929 km/s
Comment
ALERT: Type II Radio Emission
Begin Time: 2026-10-10 15:15 UTC
Estimate Velocity: 929 km/s
Comment
Issue Time: 2026-10-10 15:24 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2026-10-10 15:16 UTC
Deviation: 56 nT
Station: NGK
Comment
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2026-10-10 15:16 UTC
Deviation: 56 nT
Station: NGK
Comment
Issue Time: 2026-10-10 15:19 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-10-10 15:05 UTC
Maximum Time: 2026-10-10 15:06 UTC
End Time: 2026-10-10 15:09 UTC
Peak Flux: 240 sfu
Duration: 4 minutes
Latest Penticton Noon Flux: 121 sfu
Comment
SUMMARY: 10cm Radio Burst
Begin Time: 2026-10-10 15:05 UTC
Maximum Time: 2026-10-10 15:06 UTC
End Time: 2026-10-10 15:09 UTC
Peak Flux: 240 sfu
Duration: 4 minutes
Latest Penticton Noon Flux: 121 sfu
Comment
Issue Time: 2026-10-10 15:09 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026-10-10 15:07 UTC
Noaa Scale: R2 - Moderate
Comment
NOAA Scale: R2 - Moderate
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026-10-10 15:07 UTC
Noaa Scale: R2 - Moderate
Comment
NOAA Scale: R2 - Moderate
Issue Time: 2026-10-10 15:04 UTC
WARNING: Geomagnetic K-index of 6 expected
Valid From: 2026-10-10 15:03 UTC
Valid To: 2026-10-10 23:59 UTC
Warning Conditions: Onset
Noaa Scale: G2 - Moderate
Comment
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: 2026-10-10 15:03 UTC
Valid To: 2026-10-10 23:59 UTC
Warning Conditions: Onset
Noaa Scale: G2 - Moderate
Comment
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: 2026-10-10 14:53 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Threshold Reached: 2026-10-10 14:53 UTC
Station: GOES-19
Comment
ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Threshold Reached: 2026-10-10 14:53 UTC
Station: GOES-19
Comment
Issue Time: 2026-10-10 14:45 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2026-10-10 15:10 UTC
Valid To: 2026-10-10 15:50 UTC
Ip Shock: 2026-10-10 14:43
Comment
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2026-10-10 15:10 UTC
Valid To: 2026-10-10 15:50 UTC
Ip Shock: 2026-10-10 14:43
Comment
Issue Time: 2026-10-10 14:42 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-10-10 14:40 UTC
Valid To: 2026-10-11 03:00 UTC
Warning Conditions: Onset
Noaa Scale: G1 - Minor
Comment
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: 2026-10-10 14:40 UTC
Valid To: 2026-10-11 03:00 UTC
Warning Conditions: Onset
Noaa Scale: G1 - Minor
Comment
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: 2026-10-10 14:40 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5430
Valid From: 2026-10-09 01:28 UTC
Now Valid Until: 2026-10-11 06:00 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: 5430
Valid From: 2026-10-09 01:28 UTC
Now Valid Until: 2026-10-11 06:00 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: 2026-10-10 05:38 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5429
Valid From: 2026-10-09 01:28 UTC
Now Valid Until: 2026-10-10 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: 5429
Valid From: 2026-10-09 01:28 UTC
Now Valid Until: 2026-10-10 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: 2026-10-09 16:36 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Oct 09: G1 (Minor) Oct 10: G1 (Minor) Oct 11: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: Downgraded the G2 to a G1 watch for 09 Oct and added a G1 watch for 10 Oct 2026.
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.
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Oct 09: G1 (Minor) Oct 10: G1 (Minor) Oct 11: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: Downgraded the G2 to a G1 watch for 09 Oct and added a G1 watch for 10 Oct 2026.
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: 2026-10-09 10:01 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-10-09 10:01 UTC
Synoptic Period: 0900-1200
Active Warning: YES
Comment
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: 2026-10-09 10:01 UTC
Synoptic Period: 0900-1200
Active Warning: YES
Comment
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2026-10-09 08:12 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Oct 10: None (Below G1) Oct 11: G2 (Moderate) Oct 12: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment
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.
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Oct 10: None (Below G1) Oct 11: G2 (Moderate) Oct 12: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment
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: 2026-10-09 01:29 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-10-09 01:28 UTC
Valid To: 2026-10-10 06:00 UTC
Warning Conditions: Onset
Comment
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: 2026-10-09 01:28 UTC
Valid To: 2026-10-10 06:00 UTC
Warning Conditions: Onset
Comment
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Built 2026-10-11 19:13 from source
