SeadedLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 01:53 | - | - | - | - | - | - |
| 01:52 | - | - | - | - | - | - |
| 01:51 | - | - | - | - | - | - |
| 01:50 | 0.85 | 703.4 | -1.65 | - | - | - |
| 01:49 | 0.46 | 667.1 | -1.51 | - | - | - |
| 01:48 | 0.86 | 719.6 | -1.72 | - | - | - |
| 01:47 | 0.73 | 707.9 | -1.46 | 0.7 | 707.9 | -1.5 |
| 01:46 | 0.71 | 703.3 | -1.39 | 0.7 | 703.3 | -1.4 |
| 01:45 | 0.24 | 659.4 | -1.58 | 0.2 | 659.4 | -1.6 |
| 01:44 | 0.84 | 715.3 | -1.90 | 0.8 | 715.3 | -1.9 |
| 01:43 | 0.75 | 703.9 | -2.11 | 0.8 | 703.9 | -2.1 |
| 01:42 | 0.73 | 700.6 | -2.16 | 0.7 | 700.6 | -2.2 |
| 01:41 | 0.61 | 691.2 | -1.77 | 0.6 | 691.2 | -1.8 |
| 01:40 | 0.82 | 706.9 | -1.98 | 0.8 | 706.9 | -2.0 |
| 01:39 | 1.15 | 715.6 | -2.22 | 1.2 | 715.6 | -2.2 |
| 01:38 | 1.11 | 713.8 | -2.56 | 1.1 | 713.8 | -2.6 |
| 01:37 | 1.12 | 712.9 | -2.52 | 1.1 | 712.9 | -2.5 |
| 01:36 | 1.16 | 715.1 | -2.68 | 1.2 | 715.1 | -2.7 |
| 01:35 | 0.98 | 711.6 | -3.10 | 1.0 | 711.6 | -3.1 |
| 01:34 | 0.91 | 695.6 | -2.99 | 0.9 | 695.6 | -3.0 |
| 01:33 | 0.62 | 694.5 | -2.54 | 0.6 | 694.5 | -2.5 |
| 01:32 | 0.96 | 715.8 | -2.09 | 1.0 | 715.8 | -2.1 |
| 01:31 | 0.90 | 708.6 | -2.37 | 0.9 | 708.6 | -2.4 |
| 01:30 | 0.78 | 705.0 | -2.27 | 0.8 | 705.0 | -2.3 |
| 01:29 | 0.62 | 685.7 | -1.63 | 0.6 | 685.7 | -1.6 |
| 01:28 | 0.61 | 688.0 | -1.25 | 0.6 | 688.0 | -1.2 |
| 01:27 | 0.62 | 690.9 | -0.72 | 0.6 | 690.9 | -0.7 |
| 01:26 | 0.62 | 686.7 | -0.68 | 0.6 | 686.7 | -0.7 |
| 01:25 | 0.45 | 677.8 | -0.89 | 0.5 | 677.8 | -0.9 |
| 01:24 | 0.73 | 696.0 | -1.45 | 0.7 | 696.0 | -1.5 |
| 01:23 | 0.69 | 693.4 | -1.49 | 0.7 | 693.4 | -1.5 |
| 01:22 | 0.58 | 686.3 | -1.28 | 0.6 | 686.3 | -1.3 |
| 01:21 | 0.40 | 672.0 | -1.04 | 0.4 | 672.0 | -1.0 |
| 01:20 | 0.47 | 680.7 | -0.16 | 0.5 | 680.7 | -0.2 |
| 01:19 | 0.92 | 720.7 | 0.25 | 0.9 | 720.7 | 0.3 |
| 01:18 | 0.69 | 726.3 | 0.39 | 0.7 | 726.3 | 0.4 |
| 01:17 | 0.61 | 711.1 | -0.28 | 0.6 | 711.1 | -0.3 |
| 01:16 | 0.35 | 657.3 | -0.75 | 0.4 | 657.3 | -0.8 |
| 01:15 | 0.62 | 702.7 | -1.18 | 0.6 | 702.7 | -1.2 |
| 01:14 | 0.59 | 695.3 | 0.93 | 0.6 | 695.3 | 0.9 |
| 01:13 | 0.78 | 705.6 | 1.48 | 0.8 | 705.6 | 1.5 |
| 01:12 | 0.38 | 670.9 | 1.36 | 0.4 | 670.9 | 1.4 |
| 01:11 | 0.58 | 689.1 | 0.12 | 0.6 | 689.1 | 0.1 |
| 01:10 | 0.58 | 685.8 | 0.18 | 0.6 | 685.8 | 0.2 |
| 01:09 | 0.70 | 699.6 | 0.18 | 0.7 | 699.6 | 0.2 |
| 01:08 | 0.51 | 684.4 | 1.01 | 0.5 | 684.4 | 1.0 |
| 01:07 | 0.45 | 682.0 | 0.90 | 0.4 | 682.0 | 0.9 |
| 01:06 | 0.55 | 687.1 | 0.71 | 0.6 | 687.1 | 0.7 |
| 01:05 | 0.56 | 685.6 | 0.29 | 0.6 | 685.6 | 0.3 |
| 01:04 | 0.58 | 687.4 | 0.51 | 0.6 | 687.4 | 0.5 |
| 01:03 | 0.66 | 691.2 | 0.05 | 0.7 | 691.2 | 0.1 |
| 01:02 | 0.57 | 688.5 | 0.23 | 0.6 | 688.5 | 0.2 |
| 01:01 | 0.59 | 687.9 | 0.19 | 0.6 | 687.9 | 0.2 |
| 01:00 | 0.67 | 694.3 | -0.05 | 0.7 | 694.3 | -0.0 |
| 00:59 | 0.73 | 701.8 | -1.60 | 0.7 | 701.8 | -1.6 |
| 00:58 | 0.69 | 698.7 | -1.83 | 0.7 | 698.7 | -1.8 |
| 00:57 | 0.60 | 686.4 | -1.43 | 0.6 | 686.4 | -1.4 |
| 00:56 | 0.68 | 694.0 | -1.33 | 0.7 | 694.0 | -1.3 |
| 00:55 | 0.62 | 688.4 | -1.09 | 0.6 | 688.4 | -1.1 |
| 00:54 | 0.65 | 693.5 | -1.25 | 0.7 | 693.5 | -1.3 |
| 00:53 | 0.81 | 723.0 | -1.65 | 0.8 | 723.0 | -1.6 |
| 00:52 | 0.55 | 691.4 | -2.24 | 0.5 | 691.4 | -2.2 |
| 00:51 | 0.69 | 700.0 | -0.95 | 0.7 | 700.0 | -0.9 |
| 00:50 | 0.76 | 711.0 | 0.56 | 0.8 | 711.0 | 0.6 |
| 00:49 | 0.62 | 715.2 | 1.63 | 0.6 | 715.2 | 1.6 |
| 00:48 | 0.43 | 707.5 | 1.90 | 0.4 | 707.5 | 1.9 |
| 00:47 | 0.40 | 689.1 | 2.00 | 0.4 | 689.1 | 2.0 |
| 00:46 | 0.84 | 716.2 | 0.32 | 0.8 | 716.2 | 0.3 |
| 00:45 | 0.76 | 711.4 | -1.19 | 0.8 | 711.4 | -1.2 |
| 00:44 | 0.70 | 704.9 | -0.67 | 0.7 | 704.9 | -0.7 |
| 00:43 | 0.35 | 665.4 | -0.63 | 0.3 | 665.4 | -0.6 |
| 00:42 | 0.60 | 697.2 | -1.39 | 0.6 | 697.2 | -1.4 |
| 00:41 | 1.04 | 712.4 | 0.14 | 1.0 | 712.4 | 0.1 |
| 00:40 | 0.89 | 717.7 | 0.23 | 0.9 | 717.7 | 0.2 |
| 00:39 | 0.42 | 675.4 | -2.33 | 0.4 | 675.4 | -2.3 |
| 00:38 | 0.61 | 697.1 | -2.48 | 0.6 | 697.1 | -2.5 |
| 00:37 | 0.58 | 694.5 | -2.51 | 0.6 | 694.5 | -2.5 |
| 00:36 | 0.71 | 704.2 | -2.75 | 0.7 | 704.2 | -2.7 |
| 00:35 | 0.62 | 691.4 | -2.09 | 0.6 | 691.4 | -2.1 |
| 00:34 | 0.61 | 690.4 | -1.11 | 0.6 | 690.4 | -1.1 |
| 00:33 | 0.69 | 702.4 | -1.06 | 0.7 | 702.4 | -1.1 |
| 00:32 | 0.65 | 702.2 | -1.42 | 0.6 | 702.2 | -1.4 |
| 00:31 | 0.60 | 697.3 | -1.57 | 0.6 | 697.3 | -1.6 |
| 00:30 | 0.65 | 695.4 | -1.65 | 0.7 | 695.4 | -1.6 |
| 00:29 | 0.67 | 699.2 | -1.63 | 0.7 | 699.2 | -1.6 |
| 00:28 | 0.67 | 695.0 | -1.70 | 0.7 | 695.0 | -1.7 |
| 00:27 | 0.87 | 711.9 | -1.67 | 0.9 | 711.9 | -1.7 |
| 00:26 | 0.59 | 705.1 | -1.96 | 0.6 | 705.1 | -2.0 |
| 00:25 | 0.62 | 699.0 | -0.04 | 0.6 | 699.0 | -0.0 |
| 00:24 | 0.82 | 707.5 | 0.25 | 0.8 | 707.5 | 0.2 |
| 00:23 | 0.59 | 696.7 | -0.08 | 0.6 | 696.7 | -0.1 |
| 00:22 | 0.66 | 693.1 | -0.44 | 0.7 | 693.1 | -0.4 |
| 00:21 | 0.83 | 709.9 | -0.13 | 0.8 | 709.9 | -0.1 |
| 00:20 | 0.76 | 712.1 | 0.59 | 0.8 | 712.1 | 0.6 |
| 00:19 | 0.55 | 690.2 | 1.96 | 0.5 | 690.2 | 2.0 |
| 00:18 | 0.55 | 690.5 | 0.65 | 0.6 | 690.5 | 0.7 |
| 00:17 | 0.56 | 693.2 | 1.27 | 0.6 | 693.2 | 1.3 |
| 00:16 | 0.63 | 696.5 | -0.07 | 0.6 | 696.5 | -0.1 |
| 00:15 | 0.83 | 723.9 | 0.33 | 0.8 | 723.9 | 0.3 |
| 00:14 | 0.68 | 711.1 | -0.29 | 0.7 | 711.1 | -0.3 |
| 00:13 | 0.50 | 637.9 | -0.67 | 0.5 | 637.9 | -0.7 |
| 00:12 | 0.87 | 729.8 | 1.02 | 0.9 | 729.8 | 1.0 |
| 00:11 | 0.86 | 728.6 | -1.69 | 0.9 | 728.6 | -1.7 |
| 00:10 | 0.75 | 712.0 | -2.35 | 0.8 | 712.0 | -2.4 |
| 00:09 | 0.93 | 726.5 | -1.90 | 0.9 | 726.5 | -1.9 |
| 00:08 | 0.84 | 719.7 | -1.75 | 0.8 | 719.7 | -1.7 |
| 00:07 | 0.82 | 714.9 | -2.15 | 0.8 | 714.9 | -2.2 |
| 00:06 | 0.85 | 718.3 | -1.36 | 0.8 | 718.3 | -1.4 |
| 00:05 | 1.00 | 736.6 | -0.66 | 1.0 | 736.6 | -0.7 |
| 00:04 | 0.95 | 732.9 | 0.45 | 1.0 | 732.9 | 0.4 |
| 00:03 | 0.70 | 713.8 | -3.08 | 0.7 | 713.8 | -3.1 |
| 00:02 | 0.65 | 711.4 | -2.13 | 0.6 | 711.4 | -2.1 |
| 00:01 | 11.71 | 688.8 | -1.88 | 11.7 | 688.8 | -1.9 |
| 00:00 | 14.76 | 673.3 | -1.63 | 14.8 | 673.3 | -1.6 |
| 23:59 | 0.57 | 703.3 | -1.75 | 0.6 | 703.3 | -1.7 |
| 23:58 | 0.73 | 711.5 | -1.73 | 0.7 | 711.5 | -1.7 |
| 23:57 | 0.76 | 713.0 | -1.79 | 0.8 | 713.0 | -1.8 |
| 23:56 | 0.80 | 710.9 | -1.73 | 0.8 | 710.9 | -1.7 |
| 23:55 | 0.83 | 711.6 | -2.14 | 0.8 | 711.6 | -2.1 |
| 23:54 | 0.47 | 695.8 | -1.71 | 0.5 | 695.8 | -1.7 |
Built 2025-05-06 01:54 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -3.1 | 2.0 | -0.7 |
| velocity [km/s] | 657.3 | 726.3 | 696.5 |
| density [cm-3] | 0.3 | 1.2 | 0.7 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 240 | 47 | 398 |
| Maasi (MAS) | 278 | 53 | 359 |
| Kilpisjärvi (KIL) | 311 | 52 | 370 |
| Ivalo (IVA) | 207 | 28 | 377 |
| Muonio (MUO) | 186 | 26 | 398 |
| Sodankylä (SOD) | 120 | 22 | 426 |
| Pello (PEL) | - | 20 | 361 |
| Oulujärvi (OUJ) | 81 | 11 | 212 |
| Mekrijärvi (MEK) | 40 | 6 | 53 |
| Hankasalmi (HAN) | - | 7 | 76 |
| Nurmijärvi (NUR) | 36 | 7 | 53 |
| Tartu (TAR) | 21 | 6 | 33 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2025-05-06 01:47 from source
Issue Time: 2025-05-05 23:48 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2036
Valid From: 2025-05-04 20:10 UTC
Now Valid Until: 2025-05-06 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: 2036
Valid From: 2025-05-04 20:10 UTC
Now Valid Until: 2025-05-06 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: 2025-05-05 18:06 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
May 06: G1 (Minor) May 07: None (Below G1) May 08: 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 06: G1 (Minor) May 07: None (Below G1) May 08: 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: 2025-05-05 18:03 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-05 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: 2025-05-05 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: 2025-05-05 14:38 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2035
Valid From: 2025-05-04 20:10 UTC
Now Valid Until: 2025-05-05 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: 2035
Valid From: 2025-05-04 20:10 UTC
Now Valid Until: 2025-05-05 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: 2025-05-05 14:30 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4952
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-06 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: 4952
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-06 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: 2025-05-05 06:00 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-05 05:59 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: 2025-05-05 05:59 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: 2025-05-05 05:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4951
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-05 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: 4951
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-05 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: 2025-05-05 05:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2034
Valid From: 2025-05-04 20:10 UTC
Now Valid Until: 2025-05-05 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: 2034
Valid From: 2025-05-04 20:10 UTC
Now Valid Until: 2025-05-05 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: 2025-05-05 05:00 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3458
Begin Time: 2025-05-02 13:30 UTC
Yesterday Maximum 2MeV Flux: 9364 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3458
Begin Time: 2025-05-02 13:30 UTC
Yesterday Maximum 2MeV Flux: 9364 pfu
Issue Time: 2025-05-04 20:11 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-05-04 20:10 UTC
Valid To: 2025-05-05 06:00 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: 2025-05-04 20:10 UTC
Valid To: 2025-05-05 06:00 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: 2025-05-04 18:58 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4950
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-05 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: 4950
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-05 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: 2025-05-04 07:53 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-04 07:52 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: 2025-05-04 07:52 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: 2025-05-04 07:23 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4949
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-04 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: 4949
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-04 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: 2025-05-04 07:23 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-05-04 07:22 UTC
Valid To: 2025-05-04 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: 2025-05-04 07:22 UTC
Valid To: 2025-05-04 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: 2025-05-04 05:31 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3457
Begin Time: 2025-05-02 13:30 UTC
Yesterday Maximum 2MeV Flux: 5464 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3457
Begin Time: 2025-05-02 13:30 UTC
Yesterday Maximum 2MeV Flux: 5464 pfu
Issue Time: 2025-05-03 17:27 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4948
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-04 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: 4948
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-04 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: 2025-05-03 11:49 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2031
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-03 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: 2031
Valid From: 2025-05-01 13:50 UTC
Now Valid Until: 2025-05-03 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: 2025-05-03 10:32 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-03 10:30 UTC
Synoptic Period: 0900-1200 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 10:30 UTC
Synoptic Period: 0900-1200 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: 2025-05-03 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.
Built 2025-05-05 23:51 from source
