SettingsLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 21:19 | - | - | - | - | - | - |
| 21:18 | - | - | - | - | - | - |
| 21:17 | - | - | - | - | - | - |
| 21:16 | - | - | - | - | - | - |
| 21:15 | - | - | - | - | - | - |
| 21:14 | - | - | - | - | - | - |
| 21:13 | - | - | - | - | - | - |
| 21:12 | - | - | - | - | - | - |
| 21:11 | - | - | - | - | - | - |
| 21:10 | - | - | - | - | - | - |
| 21:09 | - | - | - | - | - | - |
| 21:08 | - | - | - | - | - | - |
| 21:07 | - | - | - | 1.8 | 434.8 | -2.5 |
| 21:06 | - | - | - | 2.8 | 443.0 | -2.6 |
| 21:05 | - | - | - | 2.3 | 434.7 | -2.9 |
| 21:04 | - | - | - | 2.3 | 436.8 | -2.9 |
| 21:03 | - | - | - | 2.2 | 436.5 | -3.0 |
| 21:02 | - | - | - | 2.2 | 436.4 | -3.1 |
| 21:01 | - | - | - | 2.3 | 437.5 | -2.9 |
| 21:00 | - | - | - | 2.2 | 438.7 | -2.9 |
| 20:59 | - | - | - | - | - | -3.0 |
| 20:58 | - | - | - | - | - | -3.1 |
| 20:57 | - | - | - | 2.3 | 444.2 | -3.1 |
| 20:56 | - | - | - | 2.5 | 447.7 | -3.2 |
| 20:55 | - | - | - | 2.7 | 451.5 | -3.2 |
| 20:54 | - | - | - | 2.2 | 444.4 | -3.2 |
| 20:53 | - | - | - | 1.7 | 436.3 | -3.2 |
| 20:52 | - | - | - | 3.1 | 458.4 | -3.1 |
| 20:51 | - | - | - | 2.3 | 462.8 | - |
| 20:50 | - | - | - | 2.0 | 445.9 | -3.0 |
| 20:49 | - | - | - | 2.0 | 447.6 | -3.0 |
| 20:48 | - | - | - | 2.0 | 446.6 | -2.9 |
| 20:47 | - | - | - | 1.8 | 444.6 | -2.9 |
| 20:46 | - | - | - | 1.8 | 445.5 | -2.9 |
| 20:45 | - | - | - | 1.7 | 444.3 | -2.7 |
| 20:44 | - | - | - | 2.0 | 446.2 | -2.7 |
| 20:43 | - | - | - | 1.9 | 445.0 | -2.9 |
| 20:42 | - | - | - | 1.8 | 444.0 | -2.9 |
| 20:41 | - | - | - | 1.6 | 443.7 | -2.8 |
| 20:40 | - | - | - | 1.6 | 443.1 | -2.8 |
| 20:39 | - | - | - | 1.7 | 443.0 | -3.0 |
| 20:38 | - | - | - | 1.5 | 442.6 | -2.7 |
| 20:37 | - | - | - | 1.6 | 444.1 | -2.7 |
| 20:36 | - | - | - | 1.5 | 441.7 | -2.9 |
| 20:35 | - | - | - | 1.2 | 434.3 | -2.9 |
| 20:34 | - | - | - | 1.8 | 449.8 | -2.8 |
| 20:33 | - | - | - | 2.2 | 470.9 | -3.0 |
| 20:32 | - | - | - | 0.4 | 419.6 | -2.9 |
| 20:31 | - | - | - | 0.9 | 427.9 | -2.8 |
| 20:30 | - | - | - | - | - | -1.4 |
| 20:29 | - | - | - | - | - | -0.8 |
| 20:28 | - | - | - | 0.8 | 435.6 | -0.9 |
| 20:27 | - | - | - | 0.7 | 435.1 | -0.8 |
| 20:26 | - | - | - | 0.8 | 444.5 | -0.8 |
| 20:25 | - | - | - | 0.6 | 429.5 | -0.6 |
| 20:24 | - | - | - | 0.8 | 427.4 | -0.3 |
| 20:23 | - | - | - | 1.2 | 443.9 | -1.3 |
| 20:22 | - | - | - | 1.1 | 439.9 | -2.1 |
| 20:21 | - | - | - | 1.2 | 447.7 | -1.7 |
| 20:20 | - | - | - | 1.0 | 442.9 | -1.3 |
| 20:19 | - | - | - | 1.0 | 442.6 | -1.2 |
| 20:18 | - | - | - | 1.1 | 458.3 | -0.9 |
| 20:17 | - | - | - | 0.5 | 413.6 | -1.1 |
| 20:16 | - | - | - | 0.9 | 438.1 | -1.0 |
| 20:15 | - | - | - | 1.2 | 438.2 | -1.1 |
| 20:14 | - | - | - | 1.0 | 438.7 | -1.1 |
| 20:13 | - | - | - | 0.9 | 442.5 | -1.1 |
| 20:12 | - | - | - | 0.8 | 446.1 | -1.1 |
| 20:11 | - | - | - | 0.7 | 447.0 | -0.5 |
| 20:10 | - | - | - | 0.5 | 445.9 | -0.5 |
| 20:09 | - | - | - | 0.6 | 445.9 | -0.5 |
| 20:08 | - | - | - | 0.7 | 443.0 | -0.8 |
| 20:07 | - | - | - | 0.7 | 437.5 | -1.0 |
| 20:06 | - | - | - | 0.6 | 441.6 | -0.9 |
| 20:05 | - | - | - | 0.6 | 450.3 | -0.7 |
| 20:04 | - | - | - | 0.6 | 451.9 | -0.6 |
| 20:03 | - | - | - | 0.5 | 454.6 | -0.4 |
| 20:02 | - | - | - | 0.6 | 454.7 | -0.1 |
| 20:01 | - | - | - | 0.5 | 455.3 | 0.1 |
| 20:00 | - | - | - | 0.5 | 452.9 | 0.3 |
| 19:59 | - | - | - | 0.5 | 450.8 | 0.3 |
| 19:58 | - | - | - | 0.6 | 450.7 | 0.3 |
| 19:57 | - | - | - | - | - | 0.3 |
| 19:56 | - | - | - | - | - | 0.5 |
| 19:55 | - | - | - | 0.3 | 423.2 | 0.5 |
| 19:54 | - | - | - | 0.6 | 438.6 | 1.4 |
| 19:53 | - | - | - | 1.4 | 451.8 | 1.6 |
| 19:52 | - | - | - | 1.8 | 445.3 | -0.7 |
| 19:51 | - | - | - | 1.4 | 438.4 | -1.4 |
| 19:50 | - | - | - | 1.6 | 443.0 | -1.8 |
| 19:49 | - | - | - | 1.7 | 446.0 | -2.1 |
| 19:48 | - | - | - | 1.7 | 453.1 | -2.3 |
| 19:47 | - | - | - | 1.5 | 443.6 | -2.3 |
| 19:46 | - | - | - | 1.2 | 449.8 | -2.1 |
| 19:45 | - | - | - | 1.2 | 440.0 | -2.1 |
| 19:44 | - | - | - | - | - | -2.1 |
| 19:43 | - | - | - | - | - | -2.2 |
| 19:42 | - | - | - | 1.3 | 439.5 | -2.4 |
| 19:41 | - | - | - | 1.7 | 447.0 | -2.4 |
| 19:40 | - | - | - | 1.6 | 444.1 | -2.5 |
| 19:39 | - | - | - | 1.5 | 444.8 | -2.5 |
| 19:38 | - | - | - | 1.7 | 454.6 | -2.6 |
| 19:37 | - | - | - | 1.5 | 455.1 | -2.4 |
| 19:36 | - | - | - | 1.3 | 448.7 | -2.2 |
| 19:35 | - | - | - | 1.2 | 448.2 | -2.1 |
| 19:34 | - | - | - | 1.3 | 445.7 | -1.9 |
| 19:33 | - | - | - | 1.5 | 445.7 | -1.9 |
| 19:32 | - | - | - | 1.3 | 448.7 | -2.0 |
| 19:31 | - | - | - | 1.4 | 447.0 | -1.9 |
| 19:30 | - | - | - | 1.2 | 446.9 | -2.0 |
| 19:29 | - | - | - | 1.5 | 447.6 | -2.1 |
| 19:28 | - | - | - | - | - | -2.2 |
| 19:27 | - | - | - | 1.3 | 448.8 | -1.8 |
| 19:26 | - | - | - | 1.2 | 449.4 | -1.7 |
| 19:25 | - | - | - | 1.2 | 453.8 | -1.7 |
| 19:24 | - | - | - | - | - | -1.4 |
| 19:23 | - | - | - | - | - | -0.9 |
| 19:22 | - | - | - | 1.0 | 451.7 | -0.9 |
| 19:21 | - | - | - | 1.0 | 451.1 | -0.4 |
| 19:20 | - | - | - | 0.9 | 450.9 | -0.1 |
Built 2026-10-06 21:20 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -3.2 | -1.0 | -2.7 |
| velocity [km/s] | 418.1 | 436.5 | 428.6 |
| density [cm-3] | 1.6 | 3.1 | 2.4 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 237 | 19 | 315 |
| Maasi (MAS) | 277 | 18 | 322 |
| Kilpisjärvi (KIL) | 348 | 19 | 336 |
| Ivalo (IVA) | 258 | 12 | 308 |
| Muonio (MUO) | 257 | 11 | 284 |
| Sodankylä (SOD) | 192 | 9 | 256 |
| Pello (PEL) | - | 8 | 264 |
| Oulujärvi (OUJ) | 41 | 5 | 135 |
| Mekrijärvi (MEK) | 13 | 3 | 52 |
| Hankasalmi (HAN) | 20 | 4 | 46 |
| Nurmijärvi (NUR) | 15 | 4 | 41 |
| Tartu (TAR) | 13 | 4 | 35 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2026-10-06 21:17 from source
Issue Time: 2026-10-06 16:33 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Oct 07: None (Below G1) Oct 08: None (Below G1) Oct 09: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G1 to G2 (Minor-Moderate) geomagnetic storms are likely on 09 Oct with the arrival of a CME that left the Sun on 06 Oct.
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 07: None (Below G1) Oct 08: None (Below G1) Oct 09: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G1 to G2 (Minor-Moderate) geomagnetic storms are likely on 09 Oct with the arrival of a CME that left the Sun on 06 Oct.
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: 2026-10-06 06:15 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-10-06 05:59 UTC
Estimate Velocity: 947 km/s
Comment
ALERT: Type II Radio Emission
Begin Time: 2026-10-06 05:59 UTC
Estimate Velocity: 947 km/s
Comment
Issue Time: 2026-10-06 05:07 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Continuation of Serial Number: 3751
Begin Time: 2026-10-05 18:30 UTC
Yesterday Maximum 2MeV Flux: 2358 pfu
Max time: 2026-10-05 20:10 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Continuation of Serial Number: 3751
Begin Time: 2026-10-05 18:30 UTC
Yesterday Maximum 2MeV Flux: 2358 pfu
Max time: 2026-10-05 20:10 UTC
Issue Time: 2026-10-06 03:43 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5427
Valid From: 2026-10-05 01:55 UTC
Now Valid Until: 2026-10-06 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: 5427
Valid From: 2026-10-05 01:55 UTC
Now Valid Until: 2026-10-06 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: 2026-10-05 21:11 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5426
Valid From: 2026-10-05 01:55 UTC
Now Valid Until: 2026-10-06 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: 5426
Valid From: 2026-10-05 01:55 UTC
Now Valid Until: 2026-10-06 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: 2026-10-05 18:47 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Threshold Reached: 2026-10-05 18:30 UTC
Station: GOES-19
Comment
ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Threshold Reached: 2026-10-05 18:30 UTC
Station: GOES-19
Comment
Issue Time: 2026-10-05 03:52 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-10-05 03:52 UTC
Synoptic Period: 0300-0600
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: 2026-10-05 03:52 UTC
Synoptic Period: 0300-0600
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: 2026-10-05 03:50 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-10-05 03:50 UTC
Valid To: 2026-10-05 15:00 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: 2026-10-05 03:50 UTC
Valid To: 2026-10-05 15:00 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: 2026-10-05 01:56 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-10-05 01:55 UTC
Valid To: 2026-10-05 23:59 UTC
Warning Conditions: Persistence
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: 2026-10-05 01:55 UTC
Valid To: 2026-10-05 23:59 UTC
Warning Conditions: Persistence
Comment
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2026-10-04 23:57 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-10-04 23:57 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: 2026-10-04 23:57 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: 2026-10-04 20:58 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2026-10-04 20:57 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: 2026-10-04 20:57 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: 2026-10-04 19:01 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5424
Valid From: 2026-10-04 06:15 UTC
Now Valid Until: 2026-10-05 03:00 UTC
Warning Condition: Persistence
extended past Kp5 warning.
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: 5424
Valid From: 2026-10-04 06:15 UTC
Now Valid Until: 2026-10-05 03:00 UTC
Warning Condition: Persistence
extended past Kp5 warning.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2026-10-04 18:50 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2267
Valid From: 2026-10-04 11:10 UTC
Now Valid Until: 2026-10-05 03:00 UTC
Warning Condition: Persistence
Extended with issuance of G2 warning.
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.
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2267
Valid From: 2026-10-04 11:10 UTC
Now Valid Until: 2026-10-05 03:00 UTC
Warning Condition: Persistence
Extended with issuance of G2 warning.
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: 2026-10-04 18:47 UTC
WARNING: Geomagnetic K-index of 6 expected
Valid From: 2026-10-04 18:47 UTC
Valid To: 2026-10-04 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: 2026-10-04 18:47 UTC
Valid To: 2026-10-04 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: 2026-10-04 18:40 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-10-04 18:39 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: 2026-10-04 18:39 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: 2026-10-04 14:03 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-10-04 14:02 UTC
Synoptic Period: 1200-1500
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: 2026-10-04 14:02 UTC
Synoptic Period: 1200-1500
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: 2026-10-04 11:23 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-10-04 11:22 UTC
Synoptic Period: 0900-1200
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: 2026-10-04 11:22 UTC
Synoptic Period: 0900-1200
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: 2026-10-04 11:07 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-10-04 11:10 UTC
Valid To: 2026-10-04 21:00 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: 2026-10-04 11:10 UTC
Valid To: 2026-10-04 21:00 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: 2026-10-04 08:01 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-10-04 07:57 UTC
Synoptic Period: 0600-0900
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: 2026-10-04 07:57 UTC
Synoptic Period: 0600-0900
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: 2026-10-04 06:13 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-10-04 06:15 UTC
Valid To: 2026-10-04 23:59 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: 2026-10-04 06:15 UTC
Valid To: 2026-10-04 23:59 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 2026-10-06 18:25 from source
