SeadedLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 08:49 | - | - | - | - | - | - |
| 08:48 | - | - | - | - | - | - |
| 08:47 | - | - | -7.02 | - | - | - |
| 08:46 | 0.46 | 694.8 | -7.14 | - | - | - |
| 08:45 | 0.44 | 696.1 | -5.93 | - | - | - |
| 08:44 | 0.62 | 735.0 | -5.67 | - | - | - |
| 08:43 | 1.12 | 718.7 | -4.72 | - | - | - |
| 08:42 | 0.57 | 666.6 | 0.10 | - | - | - |
| 08:41 | 0.94 | 715.3 | 5.00 | - | - | - |
| 08:40 | 0.93 | 694.1 | 2.94 | - | - | - |
| 08:39 | 0.70 | 700.8 | -3.05 | - | - | - |
| 08:38 | 0.60 | 670.4 | -5.41 | - | - | - |
| 08:37 | 0.57 | 724.5 | -4.71 | - | - | - |
| 08:36 | 0.71 | 743.1 | -5.95 | - | - | - |
| 08:35 | 0.99 | 749.8 | -4.77 | - | - | - |
| 08:34 | 0.81 | 722.9 | -0.53 | - | - | - |
| 08:33 | 0.76 | 711.2 | 1.81 | - | - | - |
| 08:32 | 0.81 | 713.4 | 2.58 | - | - | - |
| 08:31 | 0.53 | 692.5 | -4.27 | - | - | - |
| 08:30 | 0.50 | 684.3 | -5.05 | - | - | - |
| 08:29 | 0.44 | 644.7 | -4.67 | - | - | - |
| 08:28 | 0.64 | 684.6 | -4.64 | - | - | - |
| 08:27 | 0.74 | 699.6 | -5.51 | 0.7 | 699.6 | -5.5 |
| 08:26 | 0.83 | 714.8 | -5.24 | 0.8 | 714.8 | -5.2 |
| 08:25 | 0.49 | 649.1 | -4.96 | 0.5 | 649.1 | -5.0 |
| 08:24 | 0.72 | 694.9 | -5.13 | 0.7 | 694.9 | -5.1 |
| 08:23 | 0.64 | 685.8 | -6.10 | 0.6 | 685.8 | -6.1 |
| 08:22 | 0.48 | 670.4 | -6.26 | 0.5 | 670.4 | -6.3 |
| 08:21 | 0.41 | 655.2 | -6.31 | 0.4 | 655.2 | -6.3 |
| 08:20 | 0.51 | 684.4 | -6.15 | 0.5 | 684.4 | -6.2 |
| 08:19 | 0.56 | 702.1 | -6.77 | 0.6 | 702.1 | -6.8 |
| 08:18 | 0.55 | 717.0 | -6.81 | 0.6 | 717.0 | -6.8 |
| 08:17 | 0.53 | 722.1 | -6.83 | 0.5 | 722.1 | -6.8 |
| 08:16 | 0.51 | 716.9 | -7.24 | 0.5 | 716.9 | -7.2 |
| 08:15 | 0.51 | 721.7 | -7.88 | 0.5 | 721.7 | -7.9 |
| 08:14 | 0.65 | 717.6 | -7.67 | 0.6 | 717.6 | -7.7 |
| 08:13 | 0.64 | 715.3 | -7.18 | 0.6 | 715.3 | -7.2 |
| 08:12 | 0.62 | 702.9 | -6.88 | 0.6 | 702.9 | -6.9 |
| 08:11 | 0.67 | 681.8 | -5.17 | 0.7 | 681.8 | -5.2 |
| 08:10 | 0.90 | 688.5 | -2.89 | 0.9 | 688.5 | -2.9 |
| 08:09 | 0.83 | 701.0 | -2.08 | 0.8 | 701.0 | -2.1 |
| 08:08 | 0.92 | 703.0 | -0.84 | 0.9 | 703.0 | -0.8 |
| 08:07 | 0.95 | 693.8 | -0.18 | 1.0 | 693.8 | -0.2 |
| 08:06 | 1.03 | 702.6 | -0.19 | 1.0 | 702.6 | -0.2 |
| 08:05 | 1.00 | 706.8 | 1.61 | 1.0 | 706.8 | 1.6 |
| 08:04 | 0.98 | 705.4 | 1.98 | 1.0 | 705.4 | 2.0 |
| 08:03 | 0.97 | 718.2 | 2.22 | 1.0 | 718.2 | 2.2 |
| 08:02 | 1.07 | 733.9 | 3.85 | 1.1 | 733.9 | 3.9 |
| 08:01 | 0.89 | 726.9 | 3.87 | 0.9 | 726.9 | 3.9 |
| 08:00 | 0.60 | 708.6 | 1.67 | 0.6 | 708.6 | 1.7 |
| 07:59 | 0.74 | 707.5 | -4.01 | 0.7 | 707.5 | -4.0 |
| 07:58 | 1.03 | 722.5 | -1.65 | 1.0 | 722.5 | -1.7 |
| 07:57 | 1.17 | 729.9 | 1.17 | 1.2 | 729.9 | 1.2 |
| 07:56 | 0.89 | 692.7 | 1.17 | 0.9 | 692.7 | 1.2 |
| 07:55 | 0.78 | 678.6 | -0.48 | 0.8 | 678.6 | -0.5 |
| 07:54 | 0.74 | 693.4 | -3.38 | 0.7 | 693.4 | -3.4 |
| 07:53 | 1.00 | 734.7 | -1.21 | 1.0 | 734.7 | -1.2 |
| 07:52 | 0.28 | 697.3 | -1.25 | 0.3 | 697.3 | -1.2 |
| 07:51 | 0.19 | 630.3 | -4.15 | 0.2 | 630.3 | -4.1 |
| 07:50 | 0.45 | 729.1 | -4.49 | 0.5 | 729.1 | -4.5 |
| 07:49 | 0.45 | 723.2 | -5.59 | 0.5 | 723.2 | -5.6 |
| 07:48 | 0.49 | 679.3 | -7.77 | 0.5 | 679.3 | -7.8 |
| 07:47 | 0.59 | 700.4 | -4.02 | 0.6 | 700.4 | -4.0 |
| 07:46 | 0.61 | 724.3 | -3.87 | 0.6 | 724.3 | -3.9 |
| 07:45 | 0.66 | 719.8 | -4.83 | 0.7 | 719.8 | -4.8 |
| 07:44 | 0.70 | 714.2 | -4.04 | 0.7 | 714.2 | -4.0 |
| 07:43 | 0.61 | 711.3 | -3.80 | 0.6 | 711.3 | -3.8 |
| 07:42 | 0.59 | 708.4 | -4.60 | 0.6 | 708.4 | -4.6 |
| 07:41 | 0.50 | 682.9 | -5.46 | 0.5 | 682.9 | -5.5 |
| 07:40 | 0.49 | 680.6 | -4.96 | 0.5 | 680.6 | -5.0 |
| 07:39 | 0.46 | 668.3 | -5.24 | 0.5 | 668.3 | -5.2 |
| 07:38 | 0.54 | 709.4 | -5.47 | 0.5 | 709.4 | -5.5 |
| 07:37 | 0.69 | 731.0 | -5.50 | 0.7 | 731.0 | -5.5 |
| 07:36 | 0.66 | 691.9 | -5.40 | 0.7 | 691.9 | -5.4 |
| 07:35 | 0.79 | 683.8 | -4.58 | 0.8 | 683.8 | -4.6 |
| 07:34 | 0.73 | 684.6 | -3.43 | 0.7 | 684.6 | -3.4 |
| 07:33 | 0.73 | 686.8 | -3.86 | 0.7 | 686.8 | -3.9 |
| 07:32 | 0.86 | 688.6 | -4.20 | 0.9 | 688.6 | -4.2 |
| 07:31 | 0.83 | 690.3 | -3.89 | 0.8 | 690.3 | -3.9 |
| 07:30 | 0.96 | 689.9 | -1.12 | 1.0 | 689.9 | -1.1 |
| 07:29 | 1.20 | 697.9 | 2.32 | 1.2 | 697.9 | 2.3 |
| 07:28 | 1.25 | 723.0 | 3.39 | 1.2 | 723.0 | 3.4 |
| 07:27 | 0.97 | 714.8 | 8.97 | 1.0 | 714.8 | 9.0 |
| 07:26 | 0.72 | 661.9 | 4.30 | 0.7 | 661.9 | 4.3 |
| 07:25 | 1.14 | 680.5 | 0.87 | 1.1 | 680.5 | 0.9 |
| 07:24 | 1.04 | 669.9 | -0.24 | 1.0 | 669.9 | -0.2 |
| 07:23 | 1.22 | 681.2 | 0.19 | 1.2 | 681.2 | 0.2 |
| 07:22 | 0.88 | 667.9 | -0.14 | 0.9 | 667.9 | -0.1 |
| 07:21 | 0.96 | 667.3 | 1.58 | 1.0 | 667.3 | 1.6 |
| 07:20 | 1.03 | 663.5 | 0.21 | 1.0 | 663.5 | 0.2 |
| 07:19 | 1.29 | 682.3 | -0.39 | 1.3 | 682.3 | -0.4 |
| 07:18 | 0.88 | 654.1 | -0.16 | 0.9 | 654.1 | -0.2 |
| 07:17 | 0.97 | 653.4 | 0.05 | 1.0 | 653.4 | 0.1 |
| 07:16 | 1.23 | 687.7 | 0.42 | 1.2 | 687.7 | 0.4 |
| 07:15 | 1.29 | 713.8 | 0.76 | 1.3 | 713.8 | 0.8 |
| 07:14 | 1.77 | 689.8 | 2.17 | 1.8 | 689.8 | 2.2 |
| 07:13 | 1.80 | 673.6 | 4.21 | 1.8 | 673.6 | 4.2 |
| 07:12 | 1.31 | 683.8 | 3.77 | 1.3 | 683.8 | 3.8 |
| 07:11 | 1.36 | 689.0 | 2.25 | 1.4 | 689.0 | 2.2 |
| 07:10 | 1.55 | 705.9 | 1.66 | 1.5 | 705.9 | 1.7 |
| 07:09 | - | - | 1.75 | - | - | 1.8 |
| 07:08 | 1.40 | 707.8 | 1.93 | 1.4 | 707.8 | 1.9 |
| 07:07 | 1.40 | 707.8 | 2.47 | 1.4 | 707.8 | 2.5 |
| 07:06 | - | - | 2.78 | - | - | 2.8 |
| 07:05 | 1.27 | 695.7 | 1.42 | 1.3 | 695.7 | 1.4 |
| 07:04 | 1.23 | 706.0 | 0.09 | 1.2 | 706.0 | 0.1 |
| 07:03 | 1.21 | 700.7 | 0.69 | 1.2 | 700.7 | 0.7 |
| 07:02 | 1.33 | 696.3 | 2.40 | 1.3 | 696.3 | 2.4 |
| 07:01 | 1.48 | 700.8 | 3.99 | 1.5 | 700.8 | 4.0 |
| 07:00 | 1.45 | 704.0 | 1.94 | 1.5 | 704.0 | 1.9 |
| 06:59 | 1.40 | 699.6 | 1.59 | 1.4 | 699.6 | 1.6 |
| 06:58 | 1.24 | 698.3 | 1.21 | 1.2 | 698.3 | 1.2 |
| 06:57 | 1.20 | 706.3 | 0.69 | 1.2 | 706.3 | 0.7 |
| 06:56 | 1.23 | 705.5 | 1.03 | 1.2 | 705.5 | 1.0 |
| 06:55 | 1.17 | 693.3 | 0.18 | 1.2 | 693.3 | 0.2 |
| 06:54 | 1.21 | 691.5 | 0.25 | 1.2 | 691.5 | 0.2 |
| 06:53 | 1.18 | 692.1 | 0.65 | 1.2 | 692.1 | 0.7 |
| 06:52 | 1.21 | 703.3 | 0.42 | 1.2 | 703.3 | 0.4 |
| 06:51 | 1.21 | 698.9 | 0.31 | 1.2 | 698.9 | 0.3 |
| 06:50 | 1.00 | 733.3 | 1.65 | 1.0 | 733.3 | 1.6 |
Built 2025-05-03 08:50 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -7.9 | 5.0 | -3.1 |
| velocity [km/s] | 630.3 | 749.8 | 702.5 |
| density [cm-3] | 0.2 | 1.2 | 0.7 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 128 | 120 | 285 |
| Maasi (MAS) | 114 | 128 | 280 |
| Kilpisjärvi (KIL) | 102 | 115 | 252 |
| Ivalo (IVA) | 122 | 114 | 238 |
| Muonio (MUO) | 98 | 100 | 198 |
| Sodankylä (SOD) | 92 | 91 | 190 |
| Pello (PEL) | 81 | 79 | 202 |
| Oulujärvi (OUJ) | 54 | 45 | 118 |
| Mekrijärvi (MEK) | 34 | 10 | 51 |
| Hankasalmi (HAN) | 27 | 26 | 69 |
| Nurmijärvi (NUR) | 28 | 26 | 74 |
| Tartu (TAR) | 20 | 20 | 63 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2025-05-03 08:47 from source
Issue Time: 2025-05-03 06:51 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3456
Begin Time: 2025-05-02 13:30 UTC
Yesterday Maximum 2MeV Flux: 1451 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3456
Begin Time: 2025-05-02 13:30 UTC
Yesterday Maximum 2MeV Flux: 1451 pfu
Issue Time: 2025-05-03 01:29 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-05-03 01:30 UTC
Valid To: 2025-05-03 09:00 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: 2025-05-03 01:30 UTC
Valid To: 2025-05-03 09:00 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: 2025-05-03 01:29 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2030
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-03 12:00 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: 2030
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-03 12:00 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: 2025-05-03 01:29 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4947
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-03 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: 4947
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-03 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: 2025-05-03 00:56 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-03 00:55 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: 2025-05-03 00:55 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: 2025-05-02 23:25 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-02 23:20 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: 2025-05-02 23:20 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: 2025-05-02 18:02 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-02 17:59 UTC
Synoptic Period: 1500-1800 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: 2025-05-02 17:59 UTC
Synoptic Period: 1500-1800 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: 2025-05-02 17:46 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4946
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-03 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: 4946
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-03 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: 2025-05-02 17:41 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2029
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-03 06:00 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: 2029
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-03 06:00 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: 2025-05-02 14:40 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-02 14:35 UTC
Synoptic Period: 1200-1500 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: 2025-05-02 14:35 UTC
Synoptic Period: 1200-1500 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: 2025-05-02 13:44 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025-05-02 13:30 UTC
Station: GOES19
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025-05-02 13:30 UTC
Station: GOES19
Issue Time: 2025-05-02 08:31 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2028
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-02 18:00 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: 2028
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-02 18:00 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: 2025-05-02 08:30 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4945
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-02 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: 4945
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-02 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: 2025-05-02 05:07 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-02 04:59 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: 2025-05-02 04:59 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: 2025-05-02 02:06 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-05-02 02:06 UTC
Valid To: 2025-05-02 09:00 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: 2025-05-02 02:06 UTC
Valid To: 2025-05-02 09:00 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: 2025-05-02 01:55 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-02 01:55 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: 2025-05-02 01:55 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: 2025-05-01 23:53 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4944
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-02 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: 4944
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-02 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: 2025-05-01 23:48 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2027
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-02 09:00 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: 2027
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-02 09:00 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: 2025-05-01 23:40 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-01 23:39 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: 2025-05-01 23:39 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: 2025-05-01 20:23 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-01 20:22 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: 2025-05-01 20:22 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: 2025-05-01 17:50 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
May 02: G1 (Minor) May 03: None (Below G1) May 04: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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
May 02: G1 (Minor) May 03: None (Below G1) May 04: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 2025-05-01 13:52 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4943
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-02 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: 4943
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-02 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: 2025-05-01 13:52 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-05-01 13:50 UTC
Valid To: 2025-05-01 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: 2025-05-01 13:50 UTC
Valid To: 2025-05-01 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: 2025-05-01 10:40 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4942
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-01 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: 4942
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-01 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: 2025-05-01 05:38 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-05-01 05:32 UTC
Synoptic Period: 0300-0600 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: 2025-05-01 05:32 UTC
Synoptic Period: 0300-0600 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: 2025-05-01 03:43 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-05-01 03:43 UTC
Valid To: 2025-05-01 12:00 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: 2025-05-01 03:43 UTC
Valid To: 2025-05-01 12:00 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: 2025-04-30 11:30 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4940
Valid From: 2025-04-30 02:25 UTC
Now Valid Until: 2025-04-30 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: 4940
Valid From: 2025-04-30 02:25 UTC
Now Valid Until: 2025-04-30 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.
Built 2025-05-03 06:53 from source
