SeadedLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 00:16 | - | - | - | - | - | - |
| 00:15 | - | - | - | - | - | - |
| 00:14 | - | - | - | - | - | - |
| 00:13 | 1.87 | 599.8 | 2.81 | - | - | - |
| 00:12 | 2.29 | 596.5 | 2.51 | - | - | - |
| 00:11 | 2.56 | 590.8 | 2.71 | - | - | - |
| 00:10 | 2.20 | 591.6 | 2.37 | - | - | - |
| 00:09 | 1.81 | 606.4 | 2.17 | - | - | - |
| 00:08 | 1.77 | 623.3 | 2.01 | - | - | - |
| 00:07 | 1.71 | 620.7 | 1.91 | 1.7 | 620.7 | 1.9 |
| 00:06 | 1.81 | 606.2 | 1.78 | 1.8 | 606.2 | 1.8 |
| 00:05 | 1.87 | 605.6 | 0.96 | 1.9 | 605.6 | 1.0 |
| 00:04 | 2.35 | 601.5 | 1.13 | 2.4 | 601.5 | 1.1 |
| 00:03 | 2.06 | 595.8 | 0.22 | 2.1 | 595.8 | 0.2 |
| 00:02 | 2.14 | 599.6 | -0.02 | 2.1 | 599.6 | -0.0 |
| 00:01 | 1.77 | 608.3 | 1.81 | 1.8 | 608.3 | 1.8 |
| 00:00 | 2.30 | 606.6 | 2.93 | 2.3 | 606.6 | 2.9 |
| 23:59 | 1.85 | 593.0 | 3.23 | 1.8 | 593.0 | 3.2 |
| 23:58 | 2.27 | 589.3 | -1.10 | 2.3 | 589.3 | -1.1 |
| 23:57 | 2.41 | 594.2 | 0.35 | 2.4 | 594.2 | 0.4 |
| 23:56 | 2.49 | 600.3 | 2.26 | 2.5 | 600.3 | 2.3 |
| 23:55 | 2.52 | 598.0 | 2.90 | 2.5 | 598.0 | 2.9 |
| 23:54 | 2.46 | 597.0 | 2.25 | 2.5 | 597.0 | 2.3 |
| 23:53 | 2.46 | 600.2 | 2.71 | 2.5 | 600.2 | 2.7 |
| 23:52 | 2.49 | 596.6 | 3.01 | 2.5 | 596.6 | 3.0 |
| 23:51 | 2.33 | 588.3 | 2.45 | 2.3 | 588.3 | 2.5 |
| 23:50 | 1.94 | 590.5 | 2.86 | 1.9 | 590.5 | 2.9 |
| 23:49 | 1.89 | 603.7 | 3.50 | 1.9 | 603.7 | 3.5 |
| 23:48 | 1.85 | 609.2 | 3.89 | 1.9 | 609.2 | 3.9 |
| 23:47 | 1.80 | 608.9 | 4.20 | 1.8 | 608.9 | 4.2 |
| 23:46 | 1.58 | 636.1 | 3.92 | 1.6 | 636.1 | 3.9 |
| 23:45 | 1.58 | - | 3.64 | 1.6 | - | 3.6 |
| 23:44 | 1.80 | 637.2 | 3.20 | 1.8 | 637.2 | 3.2 |
| 23:43 | 1.70 | 616.3 | 2.84 | 1.7 | 616.3 | 2.8 |
| 23:42 | 1.50 | 609.3 | 4.36 | 1.5 | 609.3 | 4.4 |
| 23:41 | 2.08 | 604.8 | 4.71 | 2.1 | 604.8 | 4.7 |
| 23:40 | 2.57 | 607.8 | 4.54 | 2.6 | 607.8 | 4.5 |
| 23:39 | 2.24 | 615.3 | 4.24 | 2.2 | 615.3 | 4.2 |
| 23:38 | 1.84 | 613.5 | 4.35 | 1.8 | 613.5 | 4.3 |
| 23:37 | 2.14 | 617.1 | 4.08 | 2.1 | 617.1 | 4.1 |
| 23:36 | 2.59 | 627.2 | 4.14 | 2.6 | 627.2 | 4.1 |
| 23:35 | 2.36 | 614.7 | 4.14 | 2.4 | 614.7 | 4.1 |
| 23:34 | 1.76 | 604.0 | 4.15 | 1.8 | 604.0 | 4.2 |
| 23:33 | 1.58 | 621.8 | 4.08 | 1.6 | 621.8 | 4.1 |
| 23:32 | 1.76 | 611.2 | 4.20 | 1.8 | 611.2 | 4.2 |
| 23:31 | 1.80 | 627.4 | 3.46 | 1.8 | 627.4 | 3.5 |
| 23:30 | 1.96 | 627.6 | 3.91 | 2.0 | 627.6 | 3.9 |
| 23:29 | 1.38 | 604.9 | 3.79 | 1.4 | 604.9 | 3.8 |
| 23:28 | 1.62 | 608.9 | 3.98 | 1.6 | 608.9 | 4.0 |
| 23:27 | 1.95 | 623.1 | 4.13 | 1.9 | 623.1 | 4.1 |
| 23:26 | 2.04 | 626.3 | 3.80 | 2.0 | 626.3 | 3.8 |
| 23:25 | 1.94 | 626.9 | 3.84 | 1.9 | 626.9 | 3.8 |
| 23:24 | 1.83 | 625.0 | 3.61 | 1.8 | 625.0 | 3.6 |
| 23:23 | 1.69 | 615.7 | 3.07 | 1.7 | 615.7 | 3.1 |
| 23:22 | 1.72 | 611.7 | 2.73 | 1.7 | 611.7 | 2.7 |
| 23:21 | 1.82 | 612.1 | 3.76 | 1.8 | 612.1 | 3.8 |
| 23:20 | 1.94 | 616.9 | 3.81 | 1.9 | 616.9 | 3.8 |
| 23:19 | 2.06 | 624.9 | 4.09 | 2.1 | 624.9 | 4.1 |
| 23:18 | 1.63 | 597.8 | 3.94 | 1.6 | 597.8 | 3.9 |
| 23:17 | 1.36 | 567.5 | 4.04 | 1.4 | 567.5 | 4.0 |
| 23:16 | 1.55 | 610.9 | 3.19 | 1.5 | 610.9 | 3.2 |
| 23:15 | 1.26 | 603.6 | 3.32 | 1.3 | 603.6 | 3.3 |
| 23:14 | 1.79 | 615.4 | 4.11 | 1.8 | 615.4 | 4.1 |
| 23:13 | 1.94 | 627.2 | 4.70 | 1.9 | 627.2 | 4.7 |
| 23:12 | 1.95 | 627.9 | 3.80 | 1.9 | 627.9 | 3.8 |
| 23:11 | 2.21 | 627.6 | 3.51 | 2.2 | 627.6 | 3.5 |
| 23:10 | 1.93 | 632.7 | 4.20 | 1.9 | 632.7 | 4.2 |
| 23:09 | 1.41 | 597.3 | 4.51 | 1.4 | 597.3 | 4.5 |
| 23:08 | 1.46 | 606.0 | 4.43 | 1.5 | 606.0 | 4.4 |
| 23:07 | 1.62 | 617.5 | 4.41 | 1.6 | 617.5 | 4.4 |
| 23:06 | 1.82 | 611.9 | 4.60 | 1.8 | 611.9 | 4.6 |
| 23:05 | 2.46 | 606.3 | 3.81 | 2.5 | 606.3 | 3.8 |
| 23:04 | 2.69 | 598.6 | 4.18 | 2.7 | 598.6 | 4.2 |
| 23:03 | 1.92 | 596.7 | 3.49 | 1.9 | 596.7 | 3.5 |
| 23:02 | 1.80 | 606.9 | 3.31 | 1.8 | 606.9 | 3.3 |
| 23:01 | 2.02 | 610.0 | 3.58 | 2.0 | 610.0 | 3.6 |
| 23:00 | 2.08 | 589.4 | 3.39 | 2.1 | 589.4 | 3.4 |
| 22:59 | 3.57 | 592.5 | 2.67 | 3.6 | 592.5 | 2.7 |
| 22:58 | 2.30 | 594.4 | 2.73 | 2.3 | 594.4 | 2.7 |
| 22:57 | 1.79 | 586.3 | 2.93 | 1.8 | 586.3 | 2.9 |
| 22:56 | 2.07 | 596.9 | 2.51 | 2.1 | 596.9 | 2.5 |
| 22:55 | 1.50 | 589.8 | 2.79 | 1.5 | 589.8 | 2.8 |
| 22:54 | 1.76 | 599.3 | 3.22 | 1.8 | 599.3 | 3.2 |
| 22:53 | 1.80 | 600.0 | 3.26 | 1.8 | 600.0 | 3.3 |
| 22:52 | 2.13 | 630.1 | 2.96 | 2.1 | 630.1 | 3.0 |
| 22:51 | 2.11 | 636.9 | 3.49 | 2.1 | 636.9 | 3.5 |
| 22:50 | 1.83 | 628.1 | 3.89 | 1.8 | 628.1 | 3.9 |
| 22:49 | 1.56 | 624.2 | 3.98 | 1.6 | 624.2 | 4.0 |
| 22:48 | 1.67 | 619.2 | 3.89 | 1.7 | 619.2 | 3.9 |
| 22:47 | 2.22 | 623.5 | 3.21 | 2.2 | 623.5 | 3.2 |
| 22:46 | 1.88 | 617.6 | 3.26 | 1.9 | 617.6 | 3.3 |
| 22:45 | 2.11 | 610.3 | 3.18 | 2.1 | 610.3 | 3.2 |
| 22:44 | 1.97 | 602.3 | 2.61 | 2.0 | 602.3 | 2.6 |
| 22:43 | 2.68 | 616.0 | 1.23 | 2.7 | 616.0 | 1.2 |
| 22:42 | 1.93 | 601.2 | 1.47 | 1.9 | 601.2 | 1.5 |
| 22:41 | 1.86 | 599.5 | 2.11 | 1.9 | 599.5 | 2.1 |
| 22:40 | 4.56 | 618.5 | 1.83 | 4.6 | 618.5 | 1.8 |
| 22:39 | 4.91 | 621.0 | 1.39 | 4.9 | 621.0 | 1.4 |
| 22:38 | 0.75 | 572.5 | 1.25 | 0.7 | 572.5 | 1.3 |
| 22:37 | 2.31 | 598.5 | 1.60 | 2.3 | 598.5 | 1.6 |
| 22:36 | 2.57 | 602.2 | 0.80 | 2.6 | 602.2 | 0.8 |
| 22:35 | 2.10 | 598.2 | 1.24 | 2.1 | 598.2 | 1.2 |
| 22:34 | 2.27 | 582.4 | 1.79 | 2.3 | 582.4 | 1.8 |
| 22:33 | 2.29 | 582.3 | 2.14 | 2.3 | 582.3 | 2.1 |
| 22:32 | 2.71 | 606.0 | 1.44 | 2.7 | 606.0 | 1.4 |
| 22:31 | 3.80 | 604.3 | 1.61 | 3.8 | 604.3 | 1.6 |
| 22:30 | 2.12 | 596.9 | 2.05 | 2.1 | 596.9 | 2.1 |
| 22:29 | 1.53 | 570.0 | 2.23 | 1.5 | 570.0 | 2.2 |
| 22:28 | 2.42 | 604.1 | 1.27 | 2.4 | 604.1 | 1.3 |
| 22:27 | 2.39 | 625.5 | 1.92 | 2.4 | 625.5 | 1.9 |
| 22:26 | 2.19 | 657.1 | 3.22 | 2.2 | 657.1 | 3.2 |
| 22:25 | 1.22 | 597.3 | 3.70 | 1.2 | 597.3 | 3.7 |
| 22:24 | 2.11 | 625.5 | 3.36 | 2.1 | 625.5 | 3.4 |
| 22:23 | 3.86 | 610.2 | 2.69 | 3.9 | 610.2 | 2.7 |
| 22:22 | 2.41 | 635.5 | 2.76 | 2.4 | 635.5 | 2.8 |
| 22:21 | 1.49 | 617.4 | 3.00 | 1.5 | 617.4 | 3.0 |
| 22:20 | 1.62 | 637.6 | 3.94 | 1.6 | 637.6 | 3.9 |
| 22:19 | 1.76 | 646.1 | 4.12 | 1.8 | 646.1 | 4.1 |
| 22:18 | 1.90 | 643.5 | 4.14 | 1.9 | 643.5 | 4.1 |
| 22:17 | 1.55 | 619.6 | 3.32 | 1.5 | 619.6 | 3.3 |
Built 2025-11-09 00:17 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -1.1 | 4.7 | 3.1 |
| velocity [km/s] | 567.5 | 637.2 | 609.0 |
| density [cm-3] | 1.3 | 2.6 | 2.0 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 95 | 8 | 436 |
| Maasi (MAS) | 100 | 10 | 468 |
| Kilpisjärvi (KIL) | 104 | 11 | 516 |
| Ivalo (IVA) | 73 | 7 | 306 |
| Muonio (MUO) | 72 | 7 | 514 |
| Sodankylä (SOD) | 49 | 6 | 544 |
| Pello (PEL) | 42 | 6 | 595 |
| Oulujärvi (OUJ) | 18 | 4 | 489 |
| Mekrijärvi (MEK) | 10 | 2 | 22 |
| Hankasalmi (HAN) | 12 | 3 | 227 |
| Nurmijärvi (NUR) | 11 | 4 | 126 |
| Tartu (TAR) | 7 | 3 | 48 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2025-11-09 00:17 from source
Issue Time: 2025-11-08 23:54 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5143
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-09 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: 5143
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-09 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: 2025-11-08 07:51 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-08 07:37 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-08 07:37 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2025-11-08 06:12 UTC
ALERT: Type IV Radio Emission
Begin Time: 2025-11-08 04:48 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
ALERT: Type IV Radio Emission
Begin Time: 2025-11-08 04:48 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
Issue Time: 2025-11-08 04:04 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-08 04:01 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: 2025-11-08 04:01 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: 2025-11-08 02:02 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-11-08 02:01 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: 2025-11-08 02:01 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: 2025-11-08 01:58 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-11-08 01:58 UTC
Valid To: 2025-11-08 18:00 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: 2025-11-08 01:58 UTC
Valid To: 2025-11-08 18:00 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: 2025-11-08 01:38 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-08 01:35 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: 2025-11-08 01:35 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: 2025-11-08 01:28 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5142
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-08 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: 5142
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-08 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: 2025-11-08 01:27 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-11-08 01:30 UTC
Valid To: 2025-11-08 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: 2025-11-08 01:30 UTC
Valid To: 2025-11-08 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: 2025-11-07 19:30 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Nov 08: G2 (Moderate) Nov 09: G1 (Minor) Nov 10: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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
Nov 08: G2 (Moderate) Nov 09: G1 (Minor) Nov 10: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 2025-11-07 13:58 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2132
Valid From: 2025-11-06 23:47 UTC
Now Valid Until: 2025-11-07 23:59 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: 2132
Valid From: 2025-11-06 23:47 UTC
Now Valid Until: 2025-11-07 23:59 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: 2025-11-07 08:31 UTC
ALERT: Type IV Radio Emission
Begin Time: 2025-11-07 07:32 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
ALERT: Type IV Radio Emission
Begin Time: 2025-11-07 07:32 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
Issue Time: 2025-11-07 08:06 UTC
ALERT: Type II Radio Emission
Begin Time: 2025-11-07 07:37 UTC
Estimated Velocity: 1169 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: 2025-11-07 07:37 UTC
Estimated Velocity: 1169 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.
Issue Time: 2025-11-07 07:25 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-07 07:16 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-07 07:16 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2025-11-07 05:36 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2025-11-07 05:17 UTC
Deviation: 40 nT
Station: CNB
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2025-11-07 05:17 UTC
Deviation: 40 nT
Station: CNB
Issue Time: 2025-11-07 05:04 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2025-11-07 05:05 UTC
Valid To: 2025-11-07 05:45 UTC
IP Shock Passage Observed: 2025-11-07 04:49 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2025-11-07 05:05 UTC
Valid To: 2025-11-07 05:45 UTC
IP Shock Passage Observed: 2025-11-07 04:49 UTC
Issue Time: 2025-11-07 04:56 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-11-07 04:57 UTC
Valid To: 2025-11-07 15:00 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: 2025-11-07 04:57 UTC
Valid To: 2025-11-07 15:00 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: 2025-11-07 04:54 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-07 04:48 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: 2025-11-07 04:48 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: 2025-11-07 02:56 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5141
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-08 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: 5141
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-08 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: 2025-11-07 02:26 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-07 02:20 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: 2025-11-07 02:20 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: 2025-11-07 00:00 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-06 23:59 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: 2025-11-06 23:59 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: 2025-11-06 23:50 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-11-06 23:47 UTC
Valid To: 2025-11-07 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: 2025-11-06 23:47 UTC
Valid To: 2025-11-07 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: 2025-11-06 20:31 UTC
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Nov 07: G3 (Strong) Nov 08: G2 (Moderate) Nov 09: None (Below G1)
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
Nov 07: G3 (Strong) Nov 08: G2 (Moderate) Nov 09: None (Below G1)
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: 2025-11-06 17:37 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5140
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-07 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: 5140
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-07 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: 2025-11-06 08:10 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-11-06 08:09 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-11-06 08:09 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2025-11-06 06:37 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-06 06:36 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-06 06:36 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2025-11-06 05:36 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2025-11-06 05:27 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2025-11-06 05:27 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2025-11-06 04:10 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 617
Valid From: 2025-11-05 22:00 UTC
Now Valid Until: 2025-11-06 15:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 617
Valid From: 2025-11-05 22:00 UTC
Now Valid Until: 2025-11-06 15:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2025-11-06 04:08 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2025-11-06 04:08 UTC
Valid To: 2025-11-06 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: 2025-11-06 04:08 UTC
Valid To: 2025-11-06 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: 2025-11-06 03:51 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-11-06 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: 2025-11-06 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: 2025-11-06 03:36 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-06 03:30 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: 2025-11-06 03:30 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: 2025-11-06 01:47 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2130
Valid From: 2025-11-05 19:50 UTC
Now Valid Until: 2025-11-06 15:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2130
Valid From: 2025-11-05 19:50 UTC
Now Valid Until: 2025-11-06 15:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2025-11-06 01:46 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5139
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-06 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: 5139
Valid From: 2025-11-05 01:37 UTC
Now Valid Until: 2025-11-06 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: 2025-11-06 01:24 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-11-06 01:21 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: 2025-11-06 01:21 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.
Built 2025-11-08 23:56 from source
