SettingsLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 10:54 | - | - | - | - | - | - |
| 10:53 | - | - | - | - | - | - |
| 10:52 | 3.10 | 646.7 | -1.25 | - | - | - |
| 10:51 | 3.77 | 655.3 | -2.54 | - | - | - |
| 10:50 | 3.88 | 710.6 | 4.12 | - | - | - |
| 10:49 | 3.19 | 612.8 | -0.01 | - | - | - |
| 10:48 | 3.83 | 656.1 | -6.83 | - | - | - |
| 10:47 | 4.13 | 684.4 | -4.09 | - | - | -4.1 |
| 10:46 | 4.14 | 692.5 | -7.13 | 4.1 | 692.5 | -7.1 |
| 10:45 | 3.93 | 679.2 | -4.75 | 3.9 | 679.2 | -4.7 |
| 10:44 | 3.79 | 674.6 | -3.52 | 3.8 | 674.6 | -3.5 |
| 10:43 | 3.67 | 686.7 | -2.18 | 3.7 | 686.7 | -2.2 |
| 10:42 | 3.71 | 702.1 | -2.27 | 3.7 | 702.1 | -2.3 |
| 10:41 | 3.61 | 703.5 | 1.93 | 3.6 | 703.5 | 1.9 |
| 10:40 | 3.60 | 720.0 | -1.33 | 3.6 | 720.0 | -1.3 |
| 10:39 | 4.14 | 748.8 | -2.99 | 4.1 | 748.8 | -3.0 |
| 10:38 | 3.10 | 667.8 | -6.16 | 3.1 | 667.8 | -6.2 |
| 10:37 | 0.78 | 586.0 | -5.58 | 0.8 | 586.0 | -5.6 |
| 10:36 | 3.72 | 642.6 | -5.19 | 3.7 | 642.6 | -5.2 |
| 10:35 | 4.32 | 702.7 | -2.73 | 4.3 | 702.7 | -2.7 |
| 10:34 | 4.66 | 722.7 | 2.00 | 4.7 | 722.7 | 2.0 |
| 10:33 | 2.90 | 679.9 | 3.52 | 2.9 | 679.9 | 3.5 |
| 10:32 | 2.71 | 639.1 | -7.59 | 2.7 | 639.1 | -7.6 |
| 10:31 | 3.45 | 664.4 | -6.21 | 3.4 | 664.4 | -6.2 |
| 10:30 | 3.57 | 683.9 | -5.64 | 3.6 | 683.9 | -5.6 |
| 10:29 | 3.28 | 665.8 | -5.48 | 3.3 | 665.8 | -5.5 |
| 10:28 | 3.61 | 686.8 | -7.25 | 3.6 | 686.8 | -7.2 |
| 10:27 | 3.92 | 708.2 | -7.90 | 3.9 | 708.2 | -7.9 |
| 10:26 | 0.06 | 551.8 | -7.24 | 0.1 | 551.8 | -7.2 |
| 10:25 | 0.80 | 570.7 | -5.27 | 0.8 | 570.7 | -5.3 |
| 10:24 | 3.31 | 626.8 | -5.30 | 3.3 | 626.8 | -5.3 |
| 10:23 | 5.35 | 675.2 | -1.16 | 5.3 | 675.2 | -1.2 |
| 10:22 | 3.50 | 666.3 | -2.69 | 3.5 | 666.3 | -2.7 |
| 10:21 | 4.25 | 693.2 | -5.19 | 4.2 | 693.2 | -5.2 |
| 10:20 | 2.92 | 628.1 | -3.75 | 2.9 | 628.1 | -3.7 |
| 10:19 | 2.73 | 701.4 | -6.54 | 2.7 | 701.4 | -6.5 |
| 10:18 | 3.41 | 676.4 | -5.94 | 3.4 | 676.4 | -5.9 |
| 10:17 | 0.56 | 596.0 | -5.94 | 0.6 | 596.0 | -5.9 |
| 10:16 | 1.49 | 651.5 | -0.98 | 1.5 | 651.5 | -1.0 |
| 10:15 | 2.02 | 706.1 | -9.12 | 2.0 | 706.1 | -9.1 |
| 10:14 | 0.76 | 629.0 | -8.04 | 0.8 | 629.0 | -8.0 |
| 10:13 | 0.19 | 584.4 | -6.79 | 0.2 | 584.4 | -6.8 |
| 10:12 | 2.00 | 619.8 | -6.12 | 2.0 | 619.8 | -6.1 |
| 10:11 | 3.48 | 683.9 | -10.20 | 3.5 | 683.9 | -10.2 |
| 10:10 | 4.03 | 718.0 | -9.19 | 4.0 | 718.0 | -9.2 |
| 10:09 | 4.03 | 702.3 | -9.19 | 4.0 | 702.3 | -9.2 |
| 10:08 | 3.44 | 681.5 | -7.83 | 3.4 | 681.5 | -7.8 |
| 10:07 | 3.81 | 688.1 | -7.94 | 3.8 | 688.1 | -7.9 |
| 10:06 | 4.62 | 674.3 | -6.71 | 4.6 | 674.3 | -6.7 |
| 10:05 | 3.48 | 687.1 | -1.12 | 3.5 | 687.1 | -1.1 |
| 10:04 | 3.35 | 614.5 | 2.93 | 3.3 | 614.5 | 2.9 |
| 10:03 | 3.73 | 671.7 | 3.22 | 3.7 | 671.7 | 3.2 |
| 10:02 | 3.36 | 677.7 | 2.21 | 3.4 | 677.7 | 2.2 |
| 10:01 | 3.36 | 656.2 | 2.54 | 3.4 | 656.2 | 2.5 |
| 10:00 | 3.36 | 654.6 | 3.30 | 3.4 | 654.6 | 3.3 |
| 09:59 | - | - | - | - | - | - |
| 09:58 | 3.56 | 657.3 | 2.28 | 3.6 | 657.3 | 2.3 |
| 09:57 | 3.70 | 677.7 | 1.81 | 3.7 | 677.7 | 1.8 |
| 09:56 | 3.46 | 665.0 | 1.34 | 3.5 | 665.0 | 1.3 |
| 09:55 | 3.34 | 657.5 | 2.07 | 3.3 | 657.5 | 2.1 |
| 09:54 | 3.44 | 666.0 | 1.24 | 3.4 | 666.0 | 1.2 |
| 09:53 | 3.40 | 686.1 | 3.51 | 3.4 | 686.1 | 3.5 |
| 09:52 | 3.22 | 675.0 | 4.73 | 3.2 | 675.0 | 4.7 |
| 09:51 | 3.50 | 659.7 | 5.66 | 3.5 | 659.7 | 5.7 |
| 09:50 | 5.23 | 677.8 | 3.56 | 5.2 | 677.8 | 3.6 |
| 09:49 | 4.99 | 672.8 | 0.54 | 5.0 | 672.8 | 0.5 |
| 09:48 | 4.56 | 672.7 | 1.75 | 4.6 | 672.7 | 1.8 |
| 09:47 | 4.46 | 665.3 | 2.23 | 4.5 | 665.3 | 2.2 |
| 09:46 | 4.05 | 681.7 | 3.86 | 4.0 | 681.7 | 3.9 |
| 09:45 | 3.72 | 678.5 | 3.99 | 3.7 | 678.5 | 4.0 |
| 09:44 | 3.35 | 648.4 | 4.85 | 3.4 | 648.4 | 4.9 |
| 09:43 | 3.75 | 674.5 | 4.93 | 3.8 | 674.5 | 4.9 |
| 09:42 | 3.62 | 676.9 | 5.60 | 3.6 | 676.9 | 5.6 |
| 09:41 | 3.96 | 669.9 | 5.32 | 4.0 | 669.9 | 5.3 |
| 09:40 | 3.36 | 637.6 | 5.55 | 3.4 | 637.6 | 5.5 |
| 09:39 | 3.13 | 646.7 | 6.61 | 3.1 | 646.7 | 6.6 |
| 09:38 | 3.47 | 676.1 | 4.42 | 3.5 | 676.1 | 4.4 |
| 09:37 | 3.59 | 689.7 | 5.85 | 3.6 | 689.7 | 5.9 |
| 09:36 | 3.59 | 691.2 | 7.03 | 3.6 | 691.2 | 7.0 |
| 09:35 | 3.52 | 665.9 | 5.82 | 3.5 | 665.9 | 5.8 |
| 09:34 | 3.55 | 660.3 | 5.67 | 3.6 | 660.3 | 5.7 |
| 09:33 | 3.33 | 652.2 | 5.52 | 3.3 | 652.2 | 5.5 |
| 09:32 | 2.91 | 645.2 | 6.41 | 2.9 | 645.2 | 6.4 |
| 09:31 | - | - | 6.13 | - | - | 6.1 |
| 09:30 | 4.13 | 676.0 | 5.95 | 4.1 | 676.0 | 6.0 |
| 09:29 | 3.83 | 685.3 | 5.28 | 3.8 | 685.3 | 5.3 |
| 09:28 | 3.71 | 695.0 | 7.15 | 3.7 | 695.0 | 7.2 |
| 09:27 | 3.70 | 715.1 | 9.38 | 3.7 | 715.1 | 9.4 |
| 09:26 | 3.37 | 674.1 | 8.85 | 3.4 | 674.1 | 8.9 |
| 09:25 | 3.29 | 702.1 | 9.16 | 3.3 | 702.1 | 9.2 |
| 09:24 | 3.70 | 704.9 | 9.30 | 3.7 | 704.9 | 9.3 |
| 09:23 | 3.68 | 688.0 | 8.90 | 3.7 | 688.0 | 8.9 |
| 09:22 | 1.91 | 637.5 | 8.82 | 1.9 | 637.5 | 8.8 |
| 09:21 | 0.18 | 583.6 | 8.42 | 0.2 | 583.6 | 8.4 |
| 09:20 | 3.69 | 687.3 | 8.48 | 3.7 | 687.3 | 8.5 |
| 09:19 | 3.71 | 686.1 | 7.99 | 3.7 | 686.1 | 8.0 |
| 09:18 | 3.60 | 690.0 | 7.59 | 3.6 | 690.0 | 7.6 |
| 09:17 | 2.95 | 715.9 | 7.42 | 2.9 | 715.9 | 7.4 |
| 09:16 | 2.79 | 698.8 | 8.33 | 2.8 | 698.8 | 8.3 |
| 09:15 | 2.93 | 658.4 | 6.60 | 2.9 | 658.4 | 6.6 |
| 09:14 | 5.35 | 703.8 | 1.69 | 5.4 | 703.8 | 1.7 |
| 09:13 | 5.58 | 676.5 | 1.23 | 5.6 | 676.5 | 1.2 |
| 09:12 | 0.96 | 596.3 | 2.42 | 1.0 | 596.3 | 2.4 |
| 09:11 | 2.11 | 635.8 | 2.44 | 2.1 | 635.8 | 2.4 |
| 09:10 | 4.19 | 677.6 | 3.53 | 4.2 | 677.6 | 3.5 |
| 09:09 | 4.60 | 673.6 | 0.87 | 4.6 | 673.6 | 0.9 |
| 09:08 | 4.63 | 685.1 | 0.38 | 4.6 | 685.1 | 0.4 |
| 09:07 | 4.84 | 696.4 | 0.03 | 4.8 | 696.4 | 0.0 |
| 09:06 | 4.52 | 687.3 | -2.61 | 4.5 | 687.3 | -2.6 |
| 09:05 | 6.15 | 683.7 | -5.95 | 6.1 | 683.7 | -5.9 |
| 09:04 | 7.54 | 684.7 | 0.48 | 7.5 | 684.7 | 0.5 |
| 09:03 | 3.86 | 676.5 | -0.03 | 3.9 | 676.5 | -0.0 |
| 09:02 | 3.67 | 696.4 | -1.89 | 3.7 | 696.4 | -1.9 |
| 09:01 | 4.64 | 703.2 | -1.69 | 4.6 | 703.2 | -1.7 |
| 09:00 | 4.37 | 690.1 | -2.07 | 4.4 | 690.1 | -2.1 |
| 08:59 | 2.54 | 615.7 | -2.96 | 2.5 | 615.7 | -3.0 |
| 08:58 | 3.11 | 690.2 | -0.07 | 3.1 | 690.2 | -0.1 |
| 08:57 | 4.29 | 700.5 | 5.07 | 4.3 | 700.5 | 5.1 |
| 08:56 | 4.39 | 709.5 | 7.86 | 4.4 | 709.5 | 7.9 |
| 08:55 | 3.63 | 696.5 | -1.09 | 3.6 | 696.5 | -1.1 |
Built 2025-05-29 10:55 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -10.2 | 5.7 | -2.0 |
| velocity [km/s] | 551.8 | 748.8 | 666.7 |
| density [cm-3] | 0.1 | 5.3 | 3.3 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 196 | 39 | 200 |
| Maasi (MAS) | 199 | 47 | 228 |
| Kilpisjärvi (KIL) | 180 | 47 | 215 |
| Ivalo (IVA) | 205 | 37 | 221 |
| Muonio (MUO) | 171 | 39 | 219 |
| Sodankylä (SOD) | 231 | 33 | 205 |
| Pello (PEL) | 155 | 32 | 202 |
| Oulujärvi (OUJ) | 106 | 24 | 160 |
| Mekrijärvi (MEK) | 67 | 14 | 71 |
| Hankasalmi (HAN) | 70 | 14 | 104 |
| Nurmijärvi (NUR) | 42 | 16 | 91 |
| Tartu (TAR) | 27 | 12 | 58 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2025-05-29 10:47 from source
Issue Time: 2025-05-29 10:35 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-29 10:07 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: 2025-05-29 10:07 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: 2025-05-29 08:28 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-29 08:17 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: 2025-05-29 08:17 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: 2025-05-29 04:53 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-29 04:50 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: 2025-05-29 04:50 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: 2025-05-29 02:16 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2025-05-29 02:16 UTC
Synoptic Period: 0000-0300 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: 2025-05-29 02:16 UTC
Synoptic Period: 0000-0300 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: 2025-05-29 02:12 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2025-05-29 02:11 UTC
Valid To: 2025-05-29 06:00 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: 2025-05-29 02:11 UTC
Valid To: 2025-05-29 06:00 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: 2025-05-29 01:30 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-05-29 01:29 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: 2025-05-29 01:29 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: 2025-05-29 01:26 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-05-29 01:26 UTC
Valid To: 2025-05-29 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: 2025-05-29 01:26 UTC
Valid To: 2025-05-29 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: 2025-05-29 01:22 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-29 01:20 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: 2025-05-29 01:20 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: 2025-05-29 01:16 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-05-29 01:13 UTC
Valid To: 2025-05-29 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: 2025-05-29 01:13 UTC
Valid To: 2025-05-29 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: 2025-05-29 01:15 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4975
Valid From: 2025-05-28 17:47 UTC
Now Valid Until: 2025-05-29 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: 4975
Valid From: 2025-05-28 17:47 UTC
Now Valid Until: 2025-05-29 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: 2025-05-29 01:13 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-05-29 01:10 UTC
Synoptic Period: 0000-0300 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: 2025-05-29 01:10 UTC
Synoptic Period: 0000-0300 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: 2025-05-28 17:47 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-05-28 17:47 UTC
Valid To: 2025-05-29 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: 2025-05-28 17:47 UTC
Valid To: 2025-05-29 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: 2025-05-28 05:02 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4973
Valid From: 2025-05-27 20:04 UTC
Now Valid Until: 2025-05-28 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: 4973
Valid From: 2025-05-27 20:04 UTC
Now Valid Until: 2025-05-28 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: 2025-05-28 05:01 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-05-28 05:01 UTC
Valid To: 2025-05-28 12:00 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: 2025-05-28 05:01 UTC
Valid To: 2025-05-28 12:00 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: 2025-05-27 20:32 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-05-27 20:32 UTC
Synoptic Period: 1800-2100 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: 2025-05-27 20:32 UTC
Synoptic Period: 1800-2100 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: 2025-05-27 20:03 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-05-27 20:04 UTC
Valid To: 2025-05-28 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: 2025-05-27 20:04 UTC
Valid To: 2025-05-28 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: 2025-05-26 21:17 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
May 27: None (Below G1) May 28: G1 (Minor) May 29: 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 27: None (Below G1) May 28: G1 (Minor) May 29: 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: 2025-05-26 14:20 UTC
ALERT: Type II Radio Emission
Begin Time: 2025-05-26 13:36 UTC
Estimated Velocity: 1104 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: 2025-05-26 13:36 UTC
Estimated Velocity: 1104 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 2025-05-29 10:37 from source
