SeadedLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 14:49 | - | - | - | - | - | - |
| 14:48 | - | - | - | - | - | - |
| 14:47 | - | - | - | - | - | - |
| 14:46 | 10.06 | 427.4 | 1.36 | - | - | - |
| 14:45 | 9.88 | 426.7 | 1.02 | - | - | - |
| 14:44 | 9.97 | 425.4 | -0.24 | - | - | - |
| 14:43 | 9.88 | 425.2 | 0.41 | - | - | - |
| 14:42 | 9.91 | 424.9 | 0.43 | - | - | - |
| 14:41 | 9.64 | 426.1 | 0.42 | - | - | - |
| 14:40 | 9.78 | 426.1 | 0.50 | - | - | - |
| 14:39 | 9.44 | 424.8 | 0.52 | - | - | - |
| 14:38 | 10.11 | 422.8 | 0.52 | - | - | - |
| 14:37 | 10.11 | 421.9 | 0.59 | - | - | - |
| 14:36 | 10.59 | 427.8 | 0.41 | - | - | - |
| 14:35 | 10.83 | 430.9 | 0.33 | - | - | - |
| 14:34 | 10.99 | 431.2 | 0.28 | - | - | - |
| 14:33 | 10.84 | 432.1 | 0.43 | - | - | - |
| 14:32 | 11.07 | 431.2 | 0.63 | - | - | - |
| 14:31 | 10.47 | 429.3 | 0.93 | - | - | - |
| 14:30 | 10.58 | 428.9 | 0.82 | - | - | - |
| 14:29 | 10.34 | 429.3 | 0.89 | - | - | - |
| 14:28 | 10.34 | 428.3 | 0.92 | - | - | - |
| 14:27 | 10.40 | 426.4 | 0.60 | - | - | - |
| 14:26 | 10.71 | 427.9 | 0.60 | 0.8 | 416.7 | 1.0 |
| 14:25 | 10.54 | 426.9 | 0.59 | 0.7 | 420.1 | 0.9 |
| 14:24 | 10.62 | 428.8 | 0.76 | 0.6 | 415.1 | 1.0 |
| 14:23 | 10.64 | 427.3 | 0.75 | 0.6 | 415.2 | 1.1 |
| 14:22 | 10.59 | 425.3 | 0.85 | 0.6 | 422.9 | 1.0 |
| 14:21 | 10.64 | 426.1 | 0.87 | 0.6 | 423.8 | 0.8 |
| 14:20 | 10.21 | 427.3 | 0.74 | 0.6 | 422.7 | 0.6 |
| 14:19 | 9.86 | 423.1 | 0.48 | 0.7 | 418.3 | 0.5 |
| 14:18 | 9.79 | 423.5 | 0.94 | 0.8 | 409.2 | 0.7 |
| 14:17 | 10.04 | 423.0 | 0.90 | 0.4 | 386.1 | 0.7 |
| 14:16 | 10.01 | 422.0 | 0.58 | 0.7 | 409.7 | 0.7 |
| 14:15 | 10.19 | 419.9 | 0.28 | 0.7 | 419.7 | 0.7 |
| 14:14 | 10.34 | 421.5 | 0.20 | 0.7 | 416.2 | 0.8 |
| 14:13 | 10.40 | 421.2 | 0.22 | 0.4 | 388.0 | 0.8 |
| 14:12 | 10.44 | 422.5 | 0.28 | 0.8 | 404.7 | 0.7 |
| 14:11 | 10.26 | 423.4 | 0.44 | 0.8 | 407.8 | 0.5 |
| 14:10 | 10.52 | 424.4 | 0.42 | 0.7 | 415.8 | 0.4 |
| 14:09 | 10.77 | 425.1 | 0.62 | 0.5 | 398.1 | 0.6 |
| 14:08 | 10.56 | 424.0 | 0.67 | 0.5 | 396.1 | 0.6 |
| 14:07 | 10.41 | 424.4 | 0.33 | 0.6 | 412.0 | 0.7 |
| 14:06 | 10.12 | 423.8 | 0.48 | 0.7 | 417.4 | 0.7 |
| 14:05 | 10.21 | 422.1 | 0.34 | 0.6 | 407.1 | 0.7 |
| 14:04 | 10.45 | 421.7 | 0.02 | 0.5 | 396.7 | 0.8 |
| 14:03 | 10.25 | 421.8 | 0.04 | 0.7 | 422.6 | 0.6 |
| 14:02 | 10.16 | 421.5 | 0.05 | 0.6 | 418.7 | 0.7 |
| 14:01 | 10.40 | 422.8 | -0.09 | 0.7 | 430.0 | 0.7 |
| 14:00 | 10.51 | 426.7 | -0.28 | 0.7 | 428.6 | 0.5 |
| 13:59 | 10.29 | 425.9 | 0.10 | 0.8 | 427.6 | 0.4 |
| 13:58 | 10.01 | 424.8 | 0.15 | 0.6 | 413.1 | 0.5 |
| 13:57 | 10.02 | 424.2 | 0.26 | 0.7 | 416.0 | 0.3 |
| 13:56 | 10.03 | 424.1 | 0.20 | 0.8 | 416.0 | 0.2 |
| 13:55 | 10.28 | 424.2 | 0.15 | 0.4 | 386.1 | 0.1 |
| 13:54 | 10.18 | 423.5 | 0.09 | 0.4 | 400.3 | 0.0 |
| 13:53 | 9.96 | 423.2 | 0.43 | 0.6 | 418.2 | 0.2 |
| 13:52 | 9.99 | 424.4 | 0.47 | 0.7 | 418.2 | 0.0 |
| 13:51 | 10.04 | 424.3 | 0.40 | 0.6 | 401.2 | -0.1 |
| 13:50 | 10.09 | 424.4 | 0.01 | 0.6 | 397.2 | -0.2 |
| 13:49 | 9.97 | 424.0 | -0.22 | 0.8 | 414.8 | -0.2 |
| 13:48 | 9.81 | 423.3 | -0.50 | 0.7 | 422.3 | -0.3 |
| 13:47 | 9.92 | 423.2 | -0.60 | 0.7 | 422.5 | -0.4 |
| 13:46 | 9.85 | 422.1 | -0.62 | 0.6 | 423.0 | -0.3 |
| 13:45 | 9.83 | 421.7 | -0.57 | 0.6 | 419.2 | -0.2 |
| 13:44 | 9.87 | 421.3 | -0.53 | 0.7 | 419.7 | -0.1 |
| 13:43 | 9.62 | 420.5 | -0.43 | 0.7 | 420.9 | -0.0 |
| 13:42 | 9.70 | 420.4 | -0.62 | 0.7 | 419.4 | 0.0 |
| 13:41 | 9.69 | 420.4 | -0.67 | 0.7 | 418.5 | 0.1 |
| 13:40 | 9.85 | 419.1 | -0.41 | 0.7 | 415.8 | 0.1 |
| 13:39 | 10.07 | 418.5 | -0.17 | 0.7 | 415.0 | 0.2 |
| 13:38 | 9.60 | 419.7 | -0.25 | 0.8 | 412.9 | 0.3 |
| 13:37 | 9.39 | 421.1 | -0.33 | 0.7 | 398.0 | 0.4 |
| 13:36 | 9.88 | 419.1 | -0.35 | 0.7 | 394.8 | 0.4 |
| 13:35 | 9.44 | 420.4 | -0.23 | 0.8 | 402.2 | 0.1 |
| 13:34 | 9.57 | 422.2 | -0.11 | 0.8 | 406.8 | 0.3 |
| 13:33 | 10.01 | 423.6 | 0.19 | 0.7 | 401.8 | 0.3 |
| 13:32 | 9.80 | 424.5 | 0.37 | 0.5 | 390.4 | 0.3 |
| 13:31 | 10.12 | 424.1 | 0.50 | 0.6 | 403.6 | 0.3 |
| 13:30 | 9.83 | 422.6 | 0.15 | 0.6 | 407.3 | 0.3 |
| 13:29 | 9.90 | 422.6 | 0.10 | 0.7 | 393.0 | 0.1 |
| 13:28 | 9.93 | 424.0 | -0.15 | 0.8 | 394.0 | -0.2 |
| 13:27 | 9.73 | 423.5 | 0.03 | 0.8 | 399.8 | -0.3 |
| 13:26 | 9.79 | 423.5 | 0.33 | 0.8 | 398.5 | -0.2 |
| 13:25 | 9.78 | 423.0 | 0.61 | 0.8 | 406.9 | -0.1 |
| 13:24 | 9.69 | 424.2 | 0.51 | 0.7 | 396.1 | -0.1 |
| 13:23 | 9.55 | 424.2 | 0.73 | 0.7 | 406.3 | -0.0 |
| 13:22 | 9.53 | 423.8 | 0.55 | 0.6 | 406.3 | -0.2 |
| 13:21 | 9.78 | 425.7 | 0.33 | 0.6 | 405.9 | 0.0 |
| 13:20 | 9.70 | 426.1 | 0.56 | 0.7 | 409.0 | 0.3 |
| 13:19 | 9.79 | 426.0 | 0.62 | 0.7 | 401.8 | 0.2 |
| 13:18 | 9.47 | 426.1 | 0.92 | 0.8 | 397.8 | 0.2 |
| 13:17 | 9.69 | 425.2 | 0.61 | 1.0 | 406.7 | 0.3 |
| 13:16 | 9.92 | 424.7 | 0.35 | - | - | 0.5 |
| 13:15 | 9.94 | 425.6 | 0.21 | 1.0 | 421.9 | 0.3 |
| 13:14 | 9.95 | 426.3 | 0.13 | 0.9 | 418.6 | 0.2 |
| 13:13 | 9.89 | 425.6 | 0.20 | 0.6 | 397.9 | 0.2 |
| 13:12 | 10.14 | 428.6 | 0.28 | 0.8 | 405.7 | 0.2 |
| 13:11 | 9.60 | 428.2 | 0.29 | 1.0 | 404.2 | 0.1 |
| 13:10 | 9.95 | 427.7 | 0.23 | 0.6 | 386.5 | -0.1 |
| 13:09 | 10.17 | 429.1 | -0.08 | 0.9 | 401.9 | -0.1 |
| 13:08 | 9.96 | 431.9 | -0.15 | 0.6 | 390.7 | -0.2 |
| 13:07 | 9.83 | 431.4 | 0.17 | 0.6 | 386.5 | -0.3 |
| 13:06 | 9.98 | 430.0 | -0.10 | 0.8 | 399.3 | -0.3 |
| 13:05 | 10.15 | 431.3 | -0.50 | 0.9 | 403.0 | -0.1 |
| 13:04 | 10.00 | 431.2 | -0.64 | 1.0 | 401.7 | 0.0 |
| 13:03 | 9.87 | 430.8 | -0.66 | 1.0 | 403.7 | 0.2 |
| 13:02 | 9.88 | 429.7 | -0.39 | 1.0 | 407.0 | 0.1 |
| 13:01 | 9.71 | 430.5 | -0.28 | 0.9 | 407.6 | 0.3 |
| 13:00 | 9.76 | 430.4 | -0.09 | 0.8 | 403.1 | 0.1 |
| 12:59 | 9.52 | 428.3 | -0.60 | 0.8 | 400.9 | - |
| 12:58 | 9.93 | 430.9 | -1.12 | 0.9 | 403.4 | -0.4 |
| 12:57 | 9.71 | 426.5 | -1.14 | 0.8 | 406.5 | -0.4 |
| 12:56 | 9.67 | 425.3 | -0.38 | 0.8 | 405.4 | -0.2 |
| 12:55 | 9.63 | 427.6 | 0.00 | 0.8 | 398.0 | -0.5 |
| 12:54 | 9.41 | 426.9 | 0.13 | 0.6 | 398.5 | -0.3 |
| 12:53 | 9.46 | 426.7 | -0.16 | 0.8 | 403.0 | 0.2 |
| 12:52 | 9.52 | 428.9 | -0.50 | 0.8 | 403.4 | 0.1 |
| 12:51 | 9.20 | 427.9 | 0.54 | 0.7 | 400.0 | 0.1 |
| 12:50 | 9.36 | 429.2 | 0.40 | 0.7 | 403.5 | 0.2 |
Built 2025-03-23 14:50 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -0.6 | 0.9 | 0.3 |
| velocity [km/s] | 419.9 | 432.1 | 424.7 |
| density [cm-3] | 9.4 | 11.1 | 10.2 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 26 | 5 | 73 |
| Maasi (MAS) | 23 | 5 | 77 |
| Kilpisjärvi (KIL) | 22 | 5 | 72 |
| Ivalo (IVA) | 17 | 4 | 58 |
| Muonio (MUO) | 20 | 5 | 61 |
| Sodankylä (SOD) | 39 | 4 | 55 |
| Pello (PEL) | 19 | 4 | 51 |
| Oulujärvi (OUJ) | 16 | 4 | 40 |
| Mekrijärvi (MEK) | 14 | 2 | 26 |
| Hankasalmi (HAN) | 16 | 3 | 29 |
| Nurmijärvi (NUR) | - | 3 | 31 |
| Tartu (TAR) | 14 | 2 | 23 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2025-03-23 14:47 from source
Issue Time: 2025-03-22 23:37 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-03-22 23:37 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: 2025-03-22 23:37 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: 2025-03-22 23:05 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4884
Valid From: 2025-03-21 17:15 UTC
Now Valid Until: 2025-03-23 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: 4884
Valid From: 2025-03-21 17:15 UTC
Now Valid Until: 2025-03-23 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: 2025-03-22 23:05 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1997
Valid From: 2025-03-22 16:48 UTC
Now Valid Until: 2025-03-23 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: 1997
Valid From: 2025-03-22 16:48 UTC
Now Valid Until: 2025-03-23 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: 2025-03-22 16:49 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4883
Valid From: 2025-03-21 17:15 UTC
Now Valid Until: 2025-03-22 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: 4883
Valid From: 2025-03-21 17:15 UTC
Now Valid Until: 2025-03-22 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: 2025-03-22 16:48 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-03-22 16:48 UTC
Valid To: 2025-03-22 23:59 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-03-22 16:48 UTC
Valid To: 2025-03-22 23:59 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2025-03-22 11:21 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4882
Valid From: 2025-03-21 17:15 UTC
Now Valid Until: 2025-03-22 21:00 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: 4882
Valid From: 2025-03-21 17:15 UTC
Now Valid Until: 2025-03-22 21:00 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: 2025-03-22 06:03 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4881
Valid From: 2025-03-21 17:15 UTC
Now Valid Until: 2025-03-22 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: 4881
Valid From: 2025-03-21 17:15 UTC
Now Valid Until: 2025-03-22 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: 2025-03-22 03:37 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-03-22 03:35 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: 2025-03-22 03:35 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: 2025-03-22 03:13 UTC
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Mar 23: G3 (Strong) Mar 24: G1 (Minor) Mar 25: 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
Mar 23: G3 (Strong) Mar 24: G1 (Minor) Mar 25: 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: 2025-03-22 03:02 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-03-22 02:59 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: 2025-03-22 02:59 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: 2025-03-22 01:39 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-03-22 01:36 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: 2025-03-22 01:36 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: 2025-03-21 23:35 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-03-21 23:30 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: 2025-03-21 23:30 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: 2025-03-21 19:43 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-03-21 19:45 UTC
Valid To: 2025-03-22 06:00 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-03-21 19:45 UTC
Valid To: 2025-03-22 06:00 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2025-03-21 18:55 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-03-21 18:55 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-03-21 18:55 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2025-03-21 17:33 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-03-21 17:32 UTC
Valid To: 2025-03-22 09:00 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: 2025-03-21 17:32 UTC
Valid To: 2025-03-22 09:00 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: 2025-03-21 17:31 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-03-21 17:30 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-03-21 17:30 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2025-03-21 17:12 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-03-21 17:15 UTC
Valid To: 2025-03-22 09:00 UTC
Warning Condition: Onset
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-03-21 17:15 UTC
Valid To: 2025-03-22 09:00 UTC
Warning Condition: Onset
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2025-03-21 16:12 UTC
ALERT: Type II Radio Emission
Begin Time: 2025-03-21 15:57 UTC
Estimated Velocity: 242 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: 2025-03-21 15:57 UTC
Estimated Velocity: 242 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Built 2025-03-22 23:39 from source
