SettingsLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 00:48 | - | - | - | - | - | - |
| 00:47 | - | - | - | - | - | - |
| 00:46 | - | - | -2.26 | - | - | - |
| 00:45 | - | - | -2.98 | - | - | - |
| 00:44 | 0.56 | 416.9 | -3.42 | - | - | - |
| 00:43 | 0.67 | 417.6 | -3.73 | - | - | - |
| 00:42 | 0.61 | 422.1 | -3.99 | - | - | - |
| 00:41 | 0.61 | 420.0 | -3.34 | - | - | - |
| 00:40 | 0.61 | 419.9 | -3.43 | - | - | - |
| 00:39 | 0.59 | 420.1 | -3.44 | - | - | - |
| 00:38 | 0.63 | 421.1 | -3.34 | - | - | - |
| 00:37 | 0.64 | 420.9 | -3.14 | - | - | - |
| 00:36 | 0.68 | 415.9 | -2.09 | - | - | - |
| 00:35 | 0.68 | 416.2 | -1.70 | - | - | - |
| 00:34 | 0.69 | 418.3 | -3.03 | - | - | - |
| 00:33 | 0.68 | 417.3 | -3.25 | - | - | - |
| 00:32 | 0.61 | 417.8 | -3.25 | - | - | - |
| 00:31 | 0.58 | 419.4 | -3.29 | - | - | - |
| 00:30 | 0.68 | 417.0 | -1.67 | - | - | - |
| 00:29 | 0.76 | 412.5 | -1.42 | - | - | - |
| 00:28 | 0.92 | 406.7 | -1.06 | 0.9 | 406.7 | -1.1 |
| 00:27 | 0.72 | 417.3 | -1.24 | 0.7 | 417.3 | -1.2 |
| 00:26 | 0.66 | 417.5 | -2.50 | 0.7 | 417.5 | -2.5 |
| 00:25 | 0.68 | 420.5 | -2.26 | 0.7 | 420.5 | -2.3 |
| 00:24 | 0.68 | 417.2 | -2.20 | 0.7 | 417.2 | -2.2 |
| 00:23 | 0.66 | 416.7 | -1.42 | 0.7 | 416.7 | -1.4 |
| 00:22 | 0.90 | 408.9 | -1.47 | 0.9 | 408.9 | -1.5 |
| 00:21 | 0.98 | 406.2 | -0.33 | 1.0 | 406.2 | -0.3 |
| 00:20 | 0.67 | 416.5 | -1.23 | 0.7 | 416.5 | -1.2 |
| 00:19 | 0.72 | 415.9 | -1.21 | 0.7 | 415.9 | -1.2 |
| 00:18 | 1.18 | 414.1 | -2.07 | 1.2 | 414.1 | -2.1 |
| 00:17 | 1.46 | 413.4 | 0.74 | 1.5 | 413.4 | 0.7 |
| 00:16 | 1.01 | 415.0 | 0.81 | 1.0 | 415.0 | 0.8 |
| 00:15 | 0.70 | 413.8 | -0.26 | 0.7 | 413.8 | -0.3 |
| 00:14 | 0.81 | 409.1 | -0.29 | 0.8 | 409.1 | -0.3 |
| 00:13 | 0.63 | 413.3 | -0.44 | 0.6 | 413.3 | -0.4 |
| 00:12 | 0.76 | 406.7 | -0.86 | 0.8 | 406.7 | -0.9 |
| 00:11 | 0.75 | 401.2 | -0.68 | 0.7 | 401.2 | -0.7 |
| 00:10 | 0.78 | 404.2 | -0.39 | 0.8 | 404.2 | -0.4 |
| 00:09 | 0.82 | 405.9 | -0.31 | 0.8 | 405.9 | -0.3 |
| 00:08 | 1.18 | 403.5 | -0.14 | 1.2 | 403.5 | -0.1 |
| 00:07 | 1.15 | 403.7 | 0.05 | 1.1 | 403.7 | 0.1 |
| 00:06 | 1.13 | 403.8 | -1.02 | 0.8 | 415.1 | -1.0 |
| 00:05 | 0.66 | 419.4 | -2.24 | 0.7 | 419.4 | -2.2 |
| 00:04 | 0.62 | 419.5 | -3.39 | 0.6 | 419.5 | -3.4 |
| 00:03 | 0.59 | 418.9 | -3.44 | 0.6 | 418.9 | -3.4 |
| 00:02 | 0.54 | 416.9 | -3.84 | 0.5 | 416.9 | -3.8 |
| 00:01 | 0.50 | 415.3 | -4.31 | 0.5 | 415.3 | -4.3 |
| 00:00 | 0.56 | 416.5 | -4.25 | 0.6 | 416.5 | -4.2 |
| 23:59 | 0.55 | 417.0 | -3.94 | 0.6 | 417.0 | -3.9 |
| 23:58 | 0.41 | 413.7 | -4.01 | 0.4 | 413.7 | -4.0 |
| 23:57 | 0.45 | 418.7 | -2.94 | 0.5 | 418.7 | -2.9 |
| 23:56 | 0.47 | 417.5 | -1.49 | 0.5 | 417.5 | -1.5 |
| 23:55 | 0.48 | 417.4 | -1.55 | 0.5 | 417.4 | -1.6 |
| 23:54 | 0.42 | 414.5 | -1.71 | 0.4 | 414.5 | -1.7 |
| 23:53 | 0.54 | 417.6 | -1.62 | 0.5 | 417.6 | -1.6 |
| 23:52 | 0.55 | 418.1 | -1.75 | 0.6 | 418.1 | -1.7 |
| 23:51 | 0.53 | 417.2 | -1.69 | 0.5 | 417.2 | -1.7 |
| 23:50 | 0.49 | 418.1 | -1.86 | 0.5 | 418.1 | -1.9 |
| 23:49 | 0.44 | 417.8 | -1.90 | 0.4 | 417.8 | -1.9 |
| 23:48 | 0.43 | 417.4 | -2.56 | 0.4 | 417.4 | -2.6 |
| 23:47 | 0.30 | 408.2 | -2.60 | 0.3 | 408.2 | -2.6 |
| 23:46 | 0.41 | 413.6 | -2.38 | 0.4 | 413.6 | -2.4 |
| 23:45 | 0.50 | 419.2 | -2.44 | 0.5 | 419.2 | -2.4 |
| 23:44 | 0.46 | 419.2 | -2.94 | 0.5 | 419.2 | -2.9 |
| 23:43 | 0.54 | 419.8 | -2.57 | 0.5 | 419.8 | -2.6 |
| 23:42 | 0.51 | 420.6 | -2.59 | 0.5 | 420.6 | -2.6 |
| 23:41 | 0.59 | 420.4 | -2.47 | 0.6 | 420.4 | -2.5 |
| 23:40 | 0.65 | 419.2 | -1.31 | 0.6 | 419.2 | -1.3 |
| 23:39 | 0.72 | 419.7 | -1.56 | 0.7 | 419.7 | -1.6 |
| 23:38 | 0.68 | 418.0 | -2.29 | 0.7 | 418.0 | -2.3 |
| 23:37 | 0.83 | 415.3 | -1.53 | 0.8 | 415.3 | -1.5 |
| 23:36 | 0.68 | 414.0 | -1.28 | 0.7 | 414.0 | -1.3 |
| 23:35 | 0.61 | 412.7 | -1.49 | 0.6 | 412.7 | -1.5 |
| 23:34 | 0.79 | 410.1 | -0.99 | 0.8 | 410.1 | -1.0 |
| 23:33 | 0.74 | 414.0 | -0.56 | 0.7 | 414.0 | -0.6 |
| 23:32 | 0.72 | 410.6 | -0.97 | 0.7 | 410.6 | -1.0 |
| 23:31 | 0.68 | 409.8 | -0.93 | 0.7 | 409.8 | -0.9 |
| 23:30 | 0.58 | 414.4 | -0.78 | 0.6 | 414.4 | -0.8 |
| 23:29 | 0.63 | 413.9 | -1.06 | 0.6 | 413.9 | -1.1 |
| 23:28 | 0.80 | 408.3 | -0.67 | 0.8 | 408.3 | -0.7 |
| 23:27 | 0.87 | 406.1 | -0.28 | 0.9 | 406.1 | -0.3 |
| 23:26 | 0.83 | 405.7 | -0.97 | 0.8 | 405.7 | -1.0 |
| 23:25 | 0.96 | 404.8 | -1.05 | 1.0 | 404.8 | -1.0 |
| 23:24 | 1.11 | 400.7 | -0.61 | 1.1 | 400.7 | -0.6 |
| 23:23 | 1.01 | 410.8 | -0.30 | 1.0 | 410.8 | -0.3 |
| 23:22 | 1.12 | 401.3 | -0.08 | 1.1 | 401.3 | -0.1 |
| 23:21 | 0.93 | 396.4 | -0.59 | 0.9 | 396.4 | -0.6 |
| 23:20 | 0.92 | 396.2 | 0.34 | 1.3 | 395.1 | 0.3 |
| 23:19 | 1.44 | 397.2 | -0.12 | 1.4 | 397.2 | -0.1 |
| 23:18 | 2.00 | 395.8 | 0.33 | 2.0 | 395.8 | 0.3 |
| 23:17 | 1.91 | 395.7 | 1.42 | 1.9 | 395.7 | 1.4 |
| 23:16 | - | - | 1.61 | - | - | 1.6 |
| 23:15 | - | - | 1.07 | - | - | 1.1 |
| 23:14 | 1.93 | 394.4 | 1.43 | 1.9 | 394.4 | 1.4 |
| 23:13 | 1.73 | 392.8 | 1.76 | 1.7 | 390.2 | 1.8 |
| 23:12 | 1.44 | 390.5 | 1.33 | 1.4 | 390.7 | 1.3 |
| 23:11 | 1.43 | 401.3 | 1.04 | 1.4 | 401.3 | 1.0 |
| 23:10 | 1.50 | 399.6 | 0.66 | 1.5 | 399.6 | 0.7 |
| 23:09 | 1.05 | 406.5 | 0.50 | 1.1 | 406.5 | 0.5 |
| 23:08 | 0.72 | 407.5 | -0.09 | 0.7 | 407.5 | -0.1 |
| 23:07 | 0.58 | 420.5 | -1.01 | 0.6 | 420.5 | -1.0 |
| 23:06 | 0.68 | 411.8 | -1.40 | 0.7 | 411.8 | -1.4 |
| 23:05 | 1.04 | 402.9 | -0.92 | 1.0 | 402.9 | -0.9 |
| 23:04 | 1.70 | 398.7 | 0.25 | 1.7 | 398.7 | 0.2 |
| 23:03 | 2.05 | 399.1 | 1.99 | 2.0 | 399.1 | 2.0 |
| 23:02 | 2.09 | 395.4 | 2.65 | 2.1 | 395.4 | 2.7 |
| 23:01 | 1.48 | 402.3 | 1.75 | 1.5 | 402.3 | 1.8 |
| 23:00 | 1.38 | 399.1 | 0.85 | 1.4 | 399.1 | 0.8 |
| 22:59 | 1.46 | 394.0 | 0.49 | 1.5 | 394.0 | 0.5 |
| 22:58 | 1.44 | 396.6 | 0.91 | 1.4 | 396.6 | 0.9 |
| 22:57 | 0.84 | 400.0 | 0.88 | 1.7 | 397.0 | 0.9 |
| 22:56 | 1.97 | 391.7 | 0.69 | 2.0 | 391.7 | 0.7 |
| 22:55 | 1.81 | 390.3 | 1.38 | 1.8 | 390.3 | 1.4 |
| 22:54 | 1.87 | 391.0 | 1.26 | 1.9 | 391.0 | 1.3 |
| 22:53 | 1.86 | 387.3 | 0.98 | 1.9 | 387.3 | 1.0 |
| 22:52 | 1.74 | 386.4 | 0.99 | 1.7 | 386.4 | 1.0 |
| 22:51 | 2.20 | 394.8 | 1.10 | 2.2 | 394.8 | 1.1 |
| 22:50 | 1.11 | 372.6 | 0.86 | 1.1 | 372.6 | 0.9 |
| 22:49 | 1.28 | 396.5 | 0.19 | 1.3 | 396.5 | 0.2 |
Built 2026-05-04 00:49 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -4.3 | 0.8 | -2.0 |
| velocity [km/s] | 401.2 | 421.1 | 414.6 |
| density [cm-3] | 0.3 | 1.5 | 0.7 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 19 | 15 | 272 |
| Maasi (MAS) | 19 | 14 | 254 |
| Kilpisjärvi (KIL) | 16 | 15 | 260 |
| Ivalo (IVA) | 10 | 9 | 250 |
| Muonio (MUO) | 11 | 9 | 258 |
| Sodankylä (SOD) | 12 | 7 | 234 |
| Pello (PEL) | 10 | 6 | 219 |
| Oulujärvi (OUJ) | 8 | 4 | 83 |
| Mekrijärvi (MEK) | 6 | 3 | 28 |
| Hankasalmi (HAN) | 6 | 3 | 33 |
| Nurmijärvi (NUR) | 7 | 3 | 30 |
| Tartu (TAR) | 5 | 2 | 23 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2026-05-04 00:47 from source
Issue Time: 2026-05-02 11:11 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-05-02 10:51 UTC
Estimated Velocity: 641 km/s
Comment: Likely associated with C-class flare acitivity originating from AR 4420 on the west limb.
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: 2026-05-02 10:51 UTC
Estimated Velocity: 641 km/s
Comment: Likely associated with C-class flare acitivity originating from AR 4420 on the west limb.
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: 2026-05-01 15:50 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-05-01 15:35 UTC
Estimated Velocity: 593 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: 2026-05-01 15:35 UTC
Estimated Velocity: 593 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: 2026-04-30 23:59 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-04-30 23:59 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: 2026-04-30 23:59 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: 2026-04-30 23:11 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5331
Valid From: 2026-04-30 20:05 UTC
Now Valid Until: 2026-05-01 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: 5331
Valid From: 2026-04-30 20:05 UTC
Now Valid Until: 2026-05-01 15:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Built 2026-05-03 23:11 from source










