SeadedLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 09:11 | - | - | - | - | - | - |
| 09:10 | - | - | - | - | - | - |
| 09:09 | - | - | - | - | - | - |
| 09:08 | - | - | - | - | - | - |
| 09:07 | 6.94 | 479.1 | 10.53 | - | - | - |
| 09:06 | 7.03 | 479.0 | 10.58 | - | - | - |
| 09:05 | 6.93 | 478.7 | 10.61 | - | - | - |
| 09:04 | 7.03 | 478.5 | 10.65 | - | - | - |
| 09:03 | 6.56 | 476.2 | 10.67 | - | - | - |
| 09:02 | 6.10 | 469.2 | 10.61 | - | - | - |
| 09:01 | 6.14 | 472.9 | 10.48 | - | - | - |
| 09:00 | 6.75 | 476.1 | 10.50 | - | - | - |
| 08:59 | 6.03 | 468.5 | 10.45 | - | - | - |
| 08:58 | 6.42 | 471.1 | 10.34 | - | - | - |
| 08:57 | 6.63 | 473.1 | 10.61 | - | - | - |
| 08:56 | 6.62 | 471.6 | 10.66 | - | - | - |
| 08:55 | 6.99 | 478.6 | 10.38 | - | - | - |
| 08:54 | 6.72 | 477.7 | 10.36 | - | - | - |
| 08:53 | 6.50 | 472.7 | 10.28 | - | - | - |
| 08:52 | 6.36 | 470.1 | 10.29 | - | - | - |
| 08:51 | 5.94 | 467.5 | 10.30 | - | - | - |
| 08:50 | 6.68 | 472.6 | 10.39 | - | - | - |
| 08:49 | 7.08 | 478.7 | 10.28 | - | - | - |
| 08:48 | 7.07 | 478.6 | 10.32 | - | - | - |
| 08:47 | 6.08 | 466.0 | 10.25 | - | - | 11.5 |
| 08:46 | 5.68 | 462.2 | 10.19 | 0.2 | 461.6 | 11.6 |
| 08:45 | 6.84 | 477.0 | 10.15 | 0.1 | 461.8 | 11.5 |
| 08:44 | 6.42 | 471.2 | 10.17 | 0.1 | 461.5 | 11.4 |
| 08:43 | 5.76 | 465.1 | 10.25 | 0.1 | 462.7 | 11.4 |
| 08:42 | 6.46 | 471.0 | 10.34 | 0.1 | 463.1 | 11.4 |
| 08:41 | 7.06 | 477.4 | 10.35 | 0.2 | 462.4 | 11.3 |
| 08:40 | 6.75 | 473.1 | 10.20 | 0.2 | 462.2 | 11.3 |
| 08:39 | 6.12 | 466.7 | 10.16 | 0.2 | 461.4 | 11.3 |
| 08:38 | 6.26 | 466.8 | 10.09 | 0.1 | 460.6 | 11.3 |
| 08:37 | 7.06 | 477.9 | 10.02 | 0.1 | 461.3 | 11.3 |
| 08:36 | 6.89 | 477.7 | 10.14 | 0.1 | 462.2 | 11.2 |
| 08:35 | 6.35 | 466.4 | 10.11 | 0.1 | 461.2 | 11.1 |
| 08:34 | 6.92 | 472.5 | 10.09 | 0.1 | 462.3 | 11.2 |
| 08:33 | 6.38 | 466.6 | 10.09 | 0.1 | 462.9 | 11.2 |
| 08:32 | 6.38 | 466.6 | 10.06 | 0.2 | 464.3 | 11.1 |
| 08:31 | 7.14 | 475.9 | 10.08 | 0.2 | 465.2 | 11.1 |
| 08:30 | 6.85 | 471.7 | 10.01 | 0.1 | 461.3 | 11.2 |
| 08:29 | 7.05 | 477.8 | 10.02 | 0.2 | 463.3 | 11.3 |
| 08:28 | 6.83 | 473.2 | 10.01 | 0.2 | 463.8 | 11.2 |
| 08:27 | 6.23 | 466.6 | 10.00 | - | - | 11.2 |
| 08:26 | 6.89 | 473.0 | 9.87 | - | - | 11.2 |
| 08:25 | 6.29 | 467.4 | 9.92 | 0.4 | 475.1 | 11.2 |
| 08:24 | 6.76 | 472.3 | 10.03 | 0.3 | 470.2 | 11.2 |
| 08:23 | 6.74 | 472.5 | 9.91 | 0.2 | 462.3 | 11.3 |
| 08:22 | 6.73 | 471.6 | 10.01 | 0.2 | 464.0 | 11.3 |
| 08:21 | 6.92 | 476.4 | 10.10 | 0.2 | 465.8 | - |
| 08:20 | 6.72 | 472.0 | 10.04 | 0.3 | 464.0 | 11.3 |
| 08:19 | 6.25 | 466.3 | 9.98 | 0.2 | 461.9 | 11.3 |
| 08:18 | 6.76 | 472.5 | 10.02 | 0.4 | 464.7 | 11.4 |
| 08:17 | 6.43 | 467.5 | 9.98 | 0.1 | 468.6 | 11.1 |
| 08:16 | 6.74 | 472.0 | 9.93 | 0.1 | 464.4 | 11.0 |
| 08:15 | 6.50 | 467.6 | 9.96 | 0.1 | 464.7 | 11.0 |
| 08:14 | 7.04 | 478.6 | 9.79 | 0.3 | 464.2 | 11.1 |
| 08:13 | 7.04 | 477.4 | 9.84 | 0.2 | 464.4 | 11.2 |
| 08:12 | 7.34 | 479.1 | 9.86 | 0.2 | 464.4 | 11.2 |
| 08:11 | 7.07 | 478.8 | 9.78 | 0.2 | 464.9 | 11.2 |
| 08:10 | 7.01 | 479.4 | 9.71 | 0.2 | 464.9 | 11.3 |
| 08:09 | 7.19 | 479.6 | 9.66 | 0.2 | 464.0 | 11.2 |
| 08:08 | 6.76 | 473.6 | 9.74 | 0.1 | 463.5 | 10.9 |
| 08:07 | 7.01 | 478.6 | 9.68 | 0.1 | 464.0 | 10.9 |
| 08:06 | 7.20 | 478.9 | 9.63 | 0.1 | 464.9 | 10.9 |
| 08:05 | 6.65 | 473.6 | 9.61 | 0.2 | 464.4 | 10.9 |
| 08:04 | 7.06 | 478.9 | 9.58 | 0.1 | 466.9 | 10.8 |
| 08:03 | 7.05 | 479.0 | 9.54 | 0.2 | 464.0 | 10.8 |
| 08:02 | 7.08 | 479.4 | 9.47 | 0.1 | 466.8 | 10.8 |
| 08:01 | 7.16 | 479.8 | 9.49 | 0.2 | 464.2 | 10.9 |
| 08:00 | 7.13 | 479.6 | 9.54 | 0.1 | 466.2 | 10.9 |
| 07:59 | 7.06 | 479.6 | 9.61 | 0.1 | 463.9 | 10.8 |
| 07:58 | 7.06 | 480.1 | 9.70 | 0.1 | 463.6 | 10.9 |
| 07:57 | 7.19 | 479.9 | 9.59 | 0.1 | 463.7 | 10.9 |
| 07:56 | 7.08 | 480.7 | 9.58 | 0.1 | 464.5 | 10.9 |
| 07:55 | 7.15 | 480.0 | 9.59 | 0.1 | 463.9 | 10.9 |
| 07:54 | 7.13 | 480.0 | 9.54 | - | - | 10.8 |
| 07:53 | 7.19 | 480.1 | 9.52 | - | - | 10.7 |
| 07:52 | 7.14 | 480.1 | 9.55 | 0.1 | 468.7 | 10.6 |
| 07:51 | 7.12 | 479.7 | 9.49 | 0.1 | 468.7 | 10.6 |
| 07:50 | 7.12 | 480.2 | 9.52 | 0.1 | 474.2 | 10.4 |
| 07:49 | 7.27 | 482.1 | 9.31 | 0.1 | 473.5 | 10.7 |
| 07:48 | 7.23 | 482.1 | 9.20 | 0.1 | 468.4 | 10.7 |
| 07:47 | 7.21 | 484.9 | 9.25 | 0.0 | 455.3 | 10.7 |
| 07:46 | 7.31 | 483.6 | 9.48 | 0.1 | 472.5 | 10.6 |
| 07:45 | 7.20 | 483.6 | 9.48 | 0.1 | 463.7 | 10.7 |
| 07:44 | 7.11 | 485.4 | 9.38 | 0.1 | 462.9 | 10.5 |
| 07:43 | 7.30 | 484.7 | 9.34 | 0.1 | 466.1 | 10.5 |
| 07:42 | 7.36 | 483.6 | 9.14 | 0.1 | 468.5 | 10.5 |
| 07:41 | 7.30 | 482.5 | 9.18 | 0.1 | 465.9 | 10.5 |
| 07:40 | 7.29 | 485.1 | 9.15 | 0.1 | 466.3 | 10.4 |
| 07:39 | 7.70 | 484.4 | 9.10 | 0.1 | 472.8 | 10.4 |
| 07:38 | 7.44 | 486.0 | 9.03 | 0.1 | 471.1 | 10.3 |
| 07:37 | 7.14 | 484.1 | 9.02 | 0.0 | 461.4 | 10.5 |
| 07:36 | 7.34 | 482.9 | 9.03 | 0.0 | 461.0 | 10.6 |
| 07:35 | 7.34 | 482.3 | 8.97 | 0.1 | 468.2 | 10.5 |
| 07:34 | 7.51 | 483.0 | 8.71 | 0.1 | 467.1 | 10.6 |
| 07:33 | 7.38 | 483.2 | 8.66 | 0.1 | 468.1 | 10.5 |
| 07:32 | 7.32 | 483.8 | 8.57 | 0.1 | 466.9 | 10.5 |
| 07:31 | 7.26 | 485.5 | 8.76 | 0.1 | 466.5 | 10.7 |
| 07:30 | 7.17 | 483.3 | 8.87 | 0.1 | 465.9 | - |
| 07:29 | 7.29 | 483.3 | 8.88 | 0.2 | 773.7 | 10.7 |
| 07:28 | 7.17 | 482.3 | 8.93 | 0.1 | 497.9 | 10.4 |
| 07:27 | 7.07 | 481.6 | 9.60 | 0.1 | 467.4 | 10.5 |
| 07:26 | 7.14 | 482.3 | 9.34 | 0.1 | 464.9 | 10.5 |
| 07:25 | 7.41 | 482.0 | 9.48 | 0.0 | 464.5 | 10.4 |
| 07:24 | 7.42 | 484.1 | 9.53 | 0.1 | 466.0 | 10.3 |
| 07:23 | 7.26 | 483.1 | 8.99 | 0.0 | 467.3 | 10.1 |
| 07:22 | 7.16 | 482.1 | 8.63 | 0.0 | 467.3 | 10.2 |
| 07:21 | 7.22 | 482.9 | 8.83 | 0.0 | 466.8 | 10.1 |
| 07:20 | 7.21 | 483.2 | 8.73 | 0.0 | 466.7 | - |
| 07:19 | 7.27 | 483.2 | 8.45 | 0.1 | 466.9 | 9.7 |
| 07:18 | 7.25 | 484.1 | 8.62 | 0.1 | 467.2 | 9.9 |
| 07:17 | 6.95 | 487.5 | 8.48 | 0.1 | 468.0 | 10.0 |
| 07:16 | 7.22 | 486.5 | 8.35 | 0.1 | 466.4 | 10.0 |
| 07:15 | 6.97 | 488.7 | 8.37 | 0.0 | 467.7 | 9.8 |
| 07:14 | 7.12 | 487.3 | 8.28 | 0.1 | 466.6 | 9.7 |
| 07:13 | 6.95 | 487.6 | 8.27 | 0.0 | 469.1 | 9.7 |
| 07:12 | 6.95 | 487.2 | 8.31 | 0.1 | 467.4 | 9.7 |
Built 2023-12-02 09:12 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | 9.5 | 10.7 | 10.0 |
| velocity [km/s] | 462.2 | 480.1 | 473.7 |
| density [cm-3] | 5.7 | 7.3 | 6.7 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 24 | 4 | 51 |
| Maasi (MAS) | 21 | 4 | 54 |
| Kilpisjärvi (KIL) | 20 | 4 | 64 |
| Ivalo (IVA) | 19 | 4 | 59 |
| Muonio (MUO) | 15 | 4 | 64 |
| Sodankylä (SOD) | 17 | 4 | 64 |
| Pello (PEL) | 12 | 4 | 58 |
| Oulujärvi (OUJ) | 13 | 5 | 70 |
| Mekrijärvi (MEK) | 8 | 5 | 27 |
| Hankasalmi (HAN) | 7 | 3 | 41 |
| Nurmijärvi (NUR) | 6 | 3 | 37 |
| Tartu (TAR) | 4 | 2 | 27 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2023-12-02 09:02 from source
Issue Time: 2023-12-02 05:51 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4519
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-02 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: 4519
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-02 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: 2023-12-02 05:50 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1844
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-02 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: 1844
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-02 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: 2023-12-02 01:24 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-02 01:22 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: 2023-12-02 01:22 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: 2023-12-01 23:38 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 23:35 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: 2023-12-01 23:35 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: 2023-12-01 20:55 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 506
Valid From: 2023-12-01 09:57 UTC
Now Valid Until: 2023-12-02 06:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 506
Valid From: 2023-12-01 09:57 UTC
Now Valid Until: 2023-12-02 06:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-12-01 20:51 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 20:50 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: 2023-12-01 20:50 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: 2023-12-01 18:01 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 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: 2023-12-01 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: 2023-12-01 14:57 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4518
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-02 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: 4518
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-02 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: 2023-12-01 14:57 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 505
Valid From: 2023-12-01 09:57 UTC
Now Valid Until: 2023-12-01 21:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 505
Valid From: 2023-12-01 09:57 UTC
Now Valid Until: 2023-12-01 21:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-12-01 14:57 UTC
EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 97
Valid From: 2023-12-01 11:16 UTC
Now Valid Until: 2023-12-01 21:00 UTC
Warning Condition: persistence
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.
EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 97
Valid From: 2023-12-01 11:16 UTC
Now Valid Until: 2023-12-01 21:00 UTC
Warning Condition: persistence
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: 2023-12-01 14:57 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1842
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-02 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: 1842
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-02 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: 2023-12-01 13:49 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-12-01 13:49 UTC
Synoptic Period: 1200-1500 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: 2023-12-01 13:49 UTC
Synoptic Period: 1200-1500 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: 2023-12-01 12:22 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 12:18 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: 2023-12-01 12:18 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: 2023-12-01 11:43 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 504
Valid From: 2023-12-01 09:57 UTC
Now Valid Until: 2023-12-01 18:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 504
Valid From: 2023-12-01 09:57 UTC
Now Valid Until: 2023-12-01 18:00 UTC
Warning Condition: Persistence
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2023-12-01 11:43 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1841
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-01 21:00 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: 1841
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-01 21:00 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: 2023-12-01 11:43 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4517
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-01 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: 4517
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-01 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: 2023-12-01 11:24 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-12-01 11:14 UTC
Synoptic Period: 0900-1200 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: 2023-12-01 11:14 UTC
Synoptic Period: 0900-1200 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: 2023-12-01 11:16 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2023-12-01 11:16 UTC
Valid To: 2023-12-01 15:00 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: 2023-12-01 11:16 UTC
Valid To: 2023-12-01 15:00 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: 2023-12-01 10:55 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-12-01 10:51 UTC
Synoptic Period: 0900-1200 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: 2023-12-01 10:51 UTC
Synoptic Period: 0900-1200 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: 2023-12-01 10:38 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 10:32 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: 2023-12-01 10:32 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: 2023-12-01 09:58 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2023-12-01 09:57 UTC
Valid To: 2023-12-01 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: 2023-12-01 09:57 UTC
Valid To: 2023-12-01 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: 2023-12-01 05:54 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1840
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-01 15:00 UTC
Warning Condition: Onset
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: 1840
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-01 15:00 UTC
Warning Condition: Onset
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: 2023-12-01 04:52 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4516
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-01 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: 4516
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-01 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: 2023-12-01 02:06 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023-12-01 02:05 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: 2023-12-01 02:05 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: 2023-12-01 00:36 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2023-12-01 00:35 UTC
Valid To: 2023-12-01 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: 2023-12-01 00:35 UTC
Valid To: 2023-12-01 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: 2023-12-01 00:32 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2023-12-01 00:21 UTC
Deviation: 36 nT
Station: FRD
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2023-12-01 00:21 UTC
Deviation: 36 nT
Station: FRD
Issue Time: 2023-12-01 00:29 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023-12-01 00:28 UTC
Valid To: 2023-12-01 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: 2023-12-01 00:28 UTC
Valid To: 2023-12-01 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: 2023-12-01 00:13 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2023-12-01 00:30 UTC
Valid To: 2023-12-01 01:30 UTC
IP Shock Passage Observed: 2023-12-01 00:00 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2023-12-01 00:30 UTC
Valid To: 2023-12-01 01:30 UTC
IP Shock Passage Observed: 2023-12-01 00:00 UTC
Issue Time: 2023-11-29 17:56 UTC
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Nov 30: G1 (Minor) Dec 01: G3 (Strong) Dec 02: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Nov 30: G1 (Minor) Dec 01: G3 (Strong) Dec 02: G1 (Minor)
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.
Built 2023-12-02 05:53 from source
