SeadedLast update:
Time UTC | DSCOVR | ACE | ||||
---|---|---|---|---|---|---|
Solar Wind | GSM | Solar Wind | GSM | |||
Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
13:36 | - | - | - | - | - | - |
13:35 | - | - | - | - | - | - |
13:34 | 5.59 | 385.5 | 1.09 | - | - | - |
13:33 | 5.78 | 387.5 | 0.86 | - | - | - |
13:32 | 6.13 | 389.8 | 0.79 | - | - | - |
13:31 | 6.08 | 389.4 | 0.84 | - | - | - |
13:30 | 4.61 | 386.0 | 0.14 | - | - | - |
13:29 | 4.24 | 385.9 | 1.62 | - | - | - |
13:28 | 4.48 | 384.0 | 2.01 | - | - | - |
13:27 | 4.84 | 384.2 | 2.21 | 4.8 | 384.2 | 2.2 |
13:26 | 4.65 | 387.7 | 2.34 | 4.6 | 387.7 | 2.3 |
13:25 | 3.56 | 393.6 | 2.36 | 3.6 | 393.6 | 2.4 |
13:24 | 4.17 | 391.3 | 3.27 | 4.2 | 391.3 | 3.3 |
13:23 | 3.97 | 393.4 | 3.38 | 4.0 | 393.4 | 3.4 |
13:22 | 3.32 | 396.4 | 4.20 | 3.3 | 396.4 | 4.2 |
13:21 | 2.74 | 398.2 | 4.71 | 2.7 | 398.2 | 4.7 |
13:20 | 2.62 | 400.2 | 5.02 | 2.6 | 400.2 | 5.0 |
13:19 | 2.87 | 397.4 | 4.74 | 2.9 | 397.4 | 4.7 |
13:18 | 3.16 | 391.2 | 4.75 | 3.2 | 391.2 | 4.7 |
13:17 | 3.43 | 394.4 | 4.11 | 3.4 | 394.4 | 4.1 |
13:16 | 2.55 | 400.4 | 4.06 | 2.6 | 400.4 | 4.1 |
13:15 | 2.89 | 400.8 | 4.75 | 2.9 | 400.8 | 4.8 |
13:14 | 2.47 | 403.3 | 5.15 | 2.5 | 403.3 | 5.1 |
13:13 | 3.54 | 396.4 | 4.79 | 3.5 | 396.4 | 4.8 |
13:12 | 3.54 | - | 4.10 | 3.5 | - | 4.1 |
13:11 | - | - | 3.37 | - | - | 3.4 |
13:10 | 5.00 | 387.5 | 5.34 | 5.0 | 387.5 | 5.3 |
13:09 | 4.00 | 386.5 | 3.17 | 4.0 | 386.5 | 3.2 |
13:08 | 2.90 | 397.4 | 3.30 | 2.9 | 397.4 | 3.3 |
13:07 | 3.03 | 399.5 | 4.82 | 3.0 | 399.5 | 4.8 |
13:06 | 3.01 | 400.3 | 5.17 | 3.0 | 400.3 | 5.2 |
13:05 | 3.05 | 396.9 | 5.90 | 3.0 | 396.9 | 5.9 |
13:04 | 3.40 | 394.1 | 4.84 | 3.4 | 394.1 | 4.8 |
13:03 | 3.51 | 396.9 | 3.55 | 3.5 | 396.9 | 3.6 |
13:02 | 3.36 | 397.4 | 3.81 | 3.4 | 397.4 | 3.8 |
13:01 | 3.44 | 395.1 | 3.74 | 3.4 | 395.1 | 3.7 |
13:00 | 4.11 | 394.9 | 2.98 | 4.1 | 394.9 | 3.0 |
12:59 | 4.71 | 397.9 | 1.92 | 4.7 | 397.9 | 1.9 |
12:58 | 5.78 | 389.8 | 3.03 | 5.8 | 389.8 | 3.0 |
12:57 | 6.51 | 389.8 | -0.52 | 6.5 | 389.8 | -0.5 |
12:56 | 4.70 | 388.3 | 0.03 | 4.7 | 388.3 | 0.0 |
12:55 | 6.68 | 386.6 | 0.15 | 6.7 | 386.6 | 0.2 |
12:54 | 6.68 | 386.7 | -1.54 | 6.7 | 386.7 | -1.5 |
12:53 | 6.63 | 386.6 | -2.12 | 6.6 | 386.6 | -2.1 |
12:52 | 6.64 | 387.0 | -1.58 | 6.6 | 387.0 | -1.6 |
12:51 | 6.49 | 388.2 | -1.18 | 6.5 | 388.2 | -1.2 |
12:50 | 6.59 | 383.7 | -0.58 | 6.6 | 383.7 | -0.6 |
12:49 | 6.72 | 380.5 | -2.63 | 6.7 | 380.5 | -2.6 |
12:48 | 6.06 | 380.8 | -2.22 | 6.1 | 380.8 | -2.2 |
12:47 | 5.72 | 381.0 | -1.75 | 5.7 | 381.0 | -1.8 |
12:46 | 6.47 | 381.8 | -1.51 | 6.5 | 381.8 | -1.5 |
12:45 | 6.46 | 381.4 | -1.17 | 6.5 | 381.4 | -1.2 |
12:44 | 6.35 | 381.9 | -1.37 | 6.3 | 381.9 | -1.4 |
12:43 | 6.38 | 384.1 | -1.18 | 6.4 | 384.1 | -1.2 |
12:42 | 5.95 | 383.0 | -1.83 | 6.0 | 383.0 | -1.8 |
12:41 | 5.18 | 384.8 | -1.24 | 5.2 | 384.8 | -1.2 |
12:40 | 5.61 | 387.3 | 1.07 | 5.6 | 387.3 | 1.1 |
12:39 | 5.62 | 387.4 | 0.82 | 5.6 | 387.4 | 0.8 |
12:38 | - | - | 0.97 | - | - | 1.0 |
12:37 | 3.96 | 392.9 | -0.43 | 4.0 | 392.9 | -0.4 |
12:36 | 3.81 | 369.3 | 3.36 | 3.8 | 369.3 | 3.4 |
12:35 | 4.17 | 373.7 | 2.29 | 4.2 | 373.7 | 2.3 |
12:34 | 4.21 | 384.6 | 3.30 | 4.2 | 384.6 | 3.3 |
12:33 | 4.71 | 385.3 | 3.22 | 4.7 | 385.3 | 3.2 |
12:32 | 5.31 | 383.6 | 3.59 | 5.3 | 383.6 | 3.6 |
12:31 | - | - | 3.05 | - | - | 3.0 |
12:30 | 3.85 | 390.1 | 2.92 | 3.9 | 390.1 | 2.9 |
12:29 | 4.12 | 390.9 | 2.93 | 4.1 | 390.9 | 2.9 |
12:28 | 5.33 | 393.3 | 3.80 | 5.3 | 393.3 | 3.8 |
12:27 | 6.60 | 389.6 | 1.94 | 6.6 | 389.6 | 1.9 |
12:26 | 3.56 | 370.0 | -0.29 | 3.6 | 370.0 | -0.3 |
12:25 | 6.22 | 391.7 | -0.52 | 6.2 | 391.7 | -0.5 |
12:24 | 6.84 | 390.6 | -0.68 | 6.8 | 390.6 | -0.7 |
12:23 | 6.52 | 396.5 | -0.70 | 6.5 | 396.5 | -0.7 |
12:22 | 6.34 | 384.6 | -0.86 | 6.3 | 384.6 | -0.9 |
12:21 | 5.71 | 383.6 | -0.79 | 5.7 | 383.6 | -0.8 |
12:20 | 6.41 | 382.9 | -0.10 | 6.4 | 382.9 | -0.1 |
12:19 | 5.70 | 382.7 | -1.31 | 5.7 | 382.7 | -1.3 |
12:18 | 4.78 | 385.5 | 0.22 | 4.8 | 385.5 | 0.2 |
12:17 | 5.12 | 385.7 | -0.42 | 5.1 | 385.7 | -0.4 |
12:16 | 6.05 | 384.0 | -2.76 | 6.0 | 384.0 | -2.8 |
12:15 | 6.44 | 383.0 | -2.58 | 6.4 | 383.0 | -2.6 |
12:14 | 6.08 | 383.8 | -1.67 | 6.1 | 383.8 | -1.7 |
12:13 | 5.65 | 388.1 | -2.57 | 5.6 | 388.1 | -2.6 |
12:12 | 6.09 | 385.4 | -4.95 | 6.1 | 385.4 | -5.0 |
12:11 | 6.97 | 384.2 | -4.89 | 7.0 | 384.2 | -4.9 |
12:10 | 6.83 | 381.6 | -3.03 | 6.8 | 381.6 | -3.0 |
12:09 | 6.45 | 381.2 | -3.20 | 6.4 | 381.2 | -3.2 |
12:08 | 4.71 | 391.1 | -2.32 | 4.7 | 391.1 | -2.3 |
12:07 | - | - | 2.15 | - | - | 2.2 |
12:06 | - | - | 1.88 | - | - | 1.9 |
12:05 | 5.24 | 378.4 | 1.19 | 5.2 | 378.4 | 1.2 |
12:04 | 4.86 | 387.6 | 1.63 | 4.9 | 387.6 | 1.6 |
12:03 | 4.89 | 387.1 | 1.65 | 4.9 | 387.1 | 1.6 |
12:02 | 4.87 | 388.5 | 1.80 | 4.9 | 388.5 | 1.8 |
12:01 | 3.64 | 382.4 | 2.21 | 3.6 | 382.4 | 2.2 |
12:00 | 3.70 | 384.2 | 2.22 | 3.7 | 384.2 | 2.2 |
11:59 | 4.90 | 395.6 | 2.10 | 4.9 | 395.6 | 2.1 |
11:58 | 4.93 | 391.5 | 1.44 | 4.9 | 391.5 | 1.4 |
11:57 | 5.29 | 380.4 | 1.16 | 5.3 | 380.4 | 1.2 |
11:56 | 4.16 | 371.3 | 0.18 | 4.2 | 371.3 | 0.2 |
11:55 | 4.84 | 386.5 | -0.14 | 4.8 | 386.5 | -0.1 |
11:54 | 4.84 | 392.1 | 0.72 | 4.8 | 392.1 | 0.7 |
11:53 | 5.45 | 392.6 | 2.80 | 5.5 | 392.6 | 2.8 |
11:52 | 3.51 | 367.6 | 1.68 | 3.5 | 367.6 | 1.7 |
11:51 | 4.98 | 387.9 | 1.22 | 5.0 | 387.9 | 1.2 |
11:50 | 6.53 | 392.1 | 0.49 | 6.5 | 392.1 | 0.5 |
11:49 | 7.23 | 400.0 | -1.35 | 7.2 | 400.0 | -1.4 |
11:48 | 4.97 | 377.8 | -0.49 | 5.0 | 377.8 | -0.5 |
11:47 | 4.26 | 380.2 | -0.14 | 4.3 | 380.2 | -0.1 |
11:46 | 5.36 | 388.3 | -0.08 | 5.4 | 388.3 | -0.1 |
11:45 | 5.96 | 389.5 | -0.09 | 6.0 | 389.5 | -0.1 |
11:44 | 4.91 | 380.4 | 0.55 | 4.9 | 380.4 | 0.6 |
11:43 | 4.09 | 378.2 | 0.37 | 4.1 | 378.2 | 0.4 |
11:42 | 3.95 | 395.4 | 0.64 | 3.9 | 395.4 | 0.6 |
11:41 | 3.37 | 397.7 | 1.29 | 3.4 | 397.7 | 1.3 |
11:40 | 6.02 | 385.6 | -2.01 | 6.0 | 385.6 | -2.0 |
11:39 | 5.26 | 383.3 | -0.15 | 5.3 | 383.3 | -0.2 |
11:38 | 4.78 | 385.2 | -0.84 | 4.8 | 385.2 | -0.8 |
11:37 | 5.51 | 382.0 | 0.15 | 5.5 | 382.0 | 0.2 |
Built 2025-04-20 13:37 from source
Solar wind parameters of the latest hour by NOAA | |||
---|---|---|---|
parameter | min | max | mean |
IMF Bz [nT] | -2.6 | 5.9 | 2.1 |
velocity [km/s] | 369.3 | 403.3 | 389.6 |
density [cm-3] | 2.5 | 6.7 | 4.6 |
Geomagnetic activity (RX [nT]) | ||
---|---|---|
site | latest hour | next hour (RXmin, RXmax) |
Kevo (KEV) | 45 | 4 | 55 |
Maasi (MAS) | 48 | 5 | 63 |
Kilpisjärvi (KIL) | 49 | 5 | 59 |
Ivalo (IVA) | 41 | 4 | 54 |
Muonio (MUO) | 43 | 4 | 50 |
Sodankylä (SOD) | 38 | 4 | 49 |
Pello (PEL) | 40 | 4 | 47 |
Oulujärvi (OUJ) | 35 | 3 | 40 |
Mekrijärvi (MEK) | 25 | 2 | 28 |
Hankasalmi (HAN) | 30 | 2 | 29 |
Nurmijärvi (NUR) | 28 | 3 | 31 |
Tartu (TAR) | 22 | 2 | 22 |
low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2025-04-20 13:32 from source
Issue Time: 2025-04-20 00:56 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-20 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: 2025-04-20 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: 2025-04-20 00:41 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-04-20 00:38 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: 2025-04-20 00:38 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: 2025-04-20 00:38 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-04-20 00:38 UTC
Valid To: 2025-04-20 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: 2025-04-20 00:38 UTC
Valid To: 2025-04-20 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: 2025-04-20 00:06 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-04-20 00:05 UTC
Valid To: 2025-04-20 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: 2025-04-20 00:05 UTC
Valid To: 2025-04-20 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: 2025-04-19 20:47 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Apr 20: None (Below G1) Apr 21: None (Below G1) Apr 22: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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.
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Apr 20: None (Below G1) Apr 21: None (Below G1) Apr 22: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 2025-04-19 14:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4931
Valid From: 2025-04-19 02:18 UTC
Now Valid Until: 2025-04-19 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: 4931
Valid From: 2025-04-19 02:18 UTC
Now Valid Until: 2025-04-19 23:59 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2025-04-19 02:27 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-04-19 02:27 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: 2025-04-19 02:27 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: 2025-04-19 02:19 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-04-19 02:18 UTC
Valid To: 2025-04-19 15:00 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: 2025-04-19 02:18 UTC
Valid To: 2025-04-19 15:00 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: 2025-04-19 00:07 UTC
ALERT: Type II Radio Emission
Begin Time: 2025-04-18 23:45 UTC
Estimated Velocity: 349 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: 2025-04-18 23:45 UTC
Estimated Velocity: 349 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.
Issue Time: 2025-04-18 04:48 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-04-18 04:47 UTC
Valid To: 2025-04-18 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: 2025-04-18 04:47 UTC
Valid To: 2025-04-18 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: 2025-04-18 04:02 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-04-18 03:57 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: 2025-04-18 03:57 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: 2025-04-18 01:52 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-04-18 01:52 UTC
Valid To: 2025-04-18 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: 2025-04-18 01:52 UTC
Valid To: 2025-04-18 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: 2025-04-17 10:12 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4928
Valid From: 2025-04-15 17:05 UTC
Now Valid Until: 2025-04-17 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: 4928
Valid From: 2025-04-15 17:05 UTC
Now Valid Until: 2025-04-17 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.
Built 2025-04-20 00:58 from source