SeadedLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 06:08 | - | - | - | - | - | - |
| 06:07 | - | - | - | - | - | - |
| 06:06 | - | - | - | - | - | - |
| 06:05 | 1.40 | 521.6 | -5.47 | - | - | - |
| 06:04 | 1.83 | 528.4 | -5.24 | - | - | - |
| 06:03 | 2.06 | 467.5 | -3.54 | - | - | - |
| 06:02 | 2.05 | 493.4 | -1.04 | - | - | - |
| 06:01 | 2.56 | 512.0 | 1.40 | - | - | - |
| 06:00 | 2.43 | 517.5 | 2.57 | - | - | - |
| 05:59 | 2.42 | 465.4 | 2.39 | - | - | - |
| 05:58 | 2.49 | 488.5 | 2.65 | - | - | - |
| 05:57 | 2.40 | 519.6 | 1.49 | - | - | - |
| 05:56 | 2.19 | 525.6 | 0.37 | - | - | - |
| 05:55 | 2.27 | 497.3 | -0.63 | - | - | - |
| 05:54 | 2.35 | 480.8 | -1.10 | - | - | - |
| 05:53 | 1.29 | 484.6 | 0.24 | - | - | - |
| 05:52 | 1.95 | 505.5 | -1.06 | - | - | - |
| 05:51 | 2.00 | 500.9 | -3.60 | - | - | - |
| 05:50 | 1.92 | 485.1 | -3.02 | - | - | - |
| 05:49 | 2.04 | 463.2 | -4.02 | - | - | - |
| 05:48 | 2.29 | 509.7 | -4.76 | - | - | - |
| 05:47 | 2.69 | 511.7 | -5.19 | 2.7 | 511.7 | -5.2 |
| 05:46 | 2.70 | 496.8 | -1.50 | 2.7 | 496.8 | -1.5 |
| 05:45 | 2.19 | 452.6 | -0.73 | 2.2 | 452.6 | -0.7 |
| 05:44 | - | - | -3.07 | - | - | -3.1 |
| 05:43 | 2.78 | 502.2 | -3.63 | 2.8 | 502.2 | -3.6 |
| 05:42 | 2.75 | 489.8 | -1.44 | 2.7 | 489.8 | -1.4 |
| 05:41 | 3.09 | 462.1 | -0.40 | 3.1 | 462.1 | -0.4 |
| 05:40 | 3.24 | 451.8 | -0.78 | 3.2 | 451.8 | -0.8 |
| 05:39 | 2.93 | 483.3 | 0.49 | 2.9 | 483.3 | 0.5 |
| 05:38 | 3.06 | 492.0 | 0.89 | 3.1 | 492.0 | 0.9 |
| 05:37 | 3.12 | 478.0 | -0.98 | 3.1 | 478.0 | -1.0 |
| 05:36 | 3.06 | 458.5 | -1.39 | 3.1 | 458.5 | -1.4 |
| 05:35 | 3.13 | 477.1 | 1.29 | 3.1 | 477.1 | 1.3 |
| 05:34 | 3.04 | 482.3 | 2.40 | 3.0 | 482.3 | 2.4 |
| 05:33 | 2.72 | 485.8 | 2.19 | 2.7 | 485.8 | 2.2 |
| 05:32 | 2.76 | 461.7 | 1.75 | 2.8 | 461.7 | 1.8 |
| 05:31 | 2.93 | 470.5 | 1.27 | 2.9 | 470.5 | 1.3 |
| 05:30 | 2.89 | 485.7 | -0.28 | 2.9 | 485.7 | -0.3 |
| 05:29 | 3.31 | 491.5 | -1.93 | 3.3 | 491.5 | -1.9 |
| 05:28 | 2.97 | 485.4 | -0.58 | 3.0 | 485.4 | -0.6 |
| 05:27 | 2.74 | 454.2 | 1.00 | 2.7 | 454.2 | 1.0 |
| 05:26 | 2.95 | 470.0 | 1.52 | 2.9 | 470.0 | 1.5 |
| 05:25 | 3.23 | 484.9 | 1.91 | 3.2 | 484.9 | 1.9 |
| 05:24 | 3.14 | 491.2 | 2.14 | 3.1 | 491.2 | 2.1 |
| 05:23 | 2.89 | 464.3 | 2.23 | 2.9 | 464.3 | 2.2 |
| 05:22 | 3.02 | 468.9 | 2.36 | 3.0 | 468.9 | 2.4 |
| 05:21 | 3.20 | 490.2 | 1.72 | 3.2 | 490.2 | 1.7 |
| 05:20 | 3.18 | 487.9 | 1.78 | 3.2 | 487.9 | 1.8 |
| 05:19 | 3.24 | 491.0 | 2.28 | 3.2 | 491.0 | 2.3 |
| 05:18 | 3.11 | 482.8 | 2.87 | 3.1 | 482.8 | 2.9 |
| 05:17 | 3.27 | 489.5 | 2.68 | 3.3 | 489.5 | 2.7 |
| 05:16 | 5.60 | 496.0 | 1.83 | 5.6 | 496.0 | 1.8 |
| 05:15 | 2.90 | 503.1 | -0.46 | 2.9 | 503.1 | -0.5 |
| 05:14 | 2.31 | 442.8 | -0.38 | 2.3 | 442.8 | -0.4 |
| 05:13 | 4.97 | 493.1 | -0.19 | 5.0 | 493.1 | -0.2 |
| 05:12 | 3.23 | 492.0 | -0.43 | 3.2 | 492.0 | -0.4 |
| 05:11 | 4.73 | 481.0 | -0.79 | 4.7 | 481.0 | -0.8 |
| 05:10 | 3.17 | 478.5 | -0.46 | 3.2 | 478.5 | -0.5 |
| 05:09 | 2.65 | 499.5 | -1.30 | 2.7 | 499.5 | -1.3 |
| 05:08 | 3.81 | 472.5 | -0.93 | 3.8 | 472.5 | -0.9 |
| 05:07 | 4.47 | 451.6 | -0.34 | 4.5 | 451.6 | -0.3 |
| 05:06 | 3.78 | 426.6 | -1.85 | 3.8 | 426.6 | -1.8 |
| 05:05 | 3.31 | 452.8 | -1.57 | 3.3 | 452.8 | -1.6 |
| 05:04 | 2.78 | 488.7 | -0.95 | 2.8 | 488.7 | -1.0 |
| 05:03 | 2.90 | 487.6 | 0.39 | 2.9 | 487.6 | 0.4 |
| 05:02 | 3.13 | 477.9 | 0.01 | 3.1 | 477.9 | 0.0 |
| 05:01 | 3.95 | 473.3 | -0.92 | 4.0 | 473.3 | -0.9 |
| 05:00 | 2.52 | 471.0 | -4.38 | 2.5 | 471.0 | -4.4 |
| 04:59 | 2.69 | 498.6 | -3.74 | 2.7 | 498.1 | - |
| 04:58 | 2.62 | 501.1 | -2.19 | 2.5 | 485.5 | -2.2 |
| 04:57 | 2.52 | 491.9 | -1.83 | 2.5 | 491.3 | -1.8 |
| 04:56 | 5.56 | 462.6 | -0.83 | 5.6 | 462.6 | -0.8 |
| 04:55 | 3.38 | 479.8 | -2.51 | 3.4 | 479.8 | -2.5 |
| 04:54 | 2.83 | 497.7 | -3.61 | 2.8 | 480.5 | -3.6 |
| 04:53 | 0.93 | 418.6 | -4.35 | 0.9 | 418.6 | -4.3 |
| 04:52 | 1.27 | 434.1 | -5.15 | 1.3 | 434.1 | -5.1 |
| 04:51 | 2.06 | 486.1 | -5.20 | 2.1 | 486.1 | -5.2 |
| 04:50 | 2.48 | 505.8 | -5.58 | 2.5 | 505.8 | -5.6 |
| 04:49 | 1.65 | 455.3 | -4.36 | 1.6 | 455.3 | -4.4 |
| 04:48 | 0.98 | 416.6 | -3.73 | 1.0 | 416.6 | -3.7 |
| 04:47 | 2.48 | 469.9 | -4.42 | 2.5 | 469.9 | -4.4 |
| 04:46 | 2.60 | 495.2 | -3.89 | 2.6 | 495.2 | -3.9 |
| 04:45 | 2.13 | 501.4 | -3.71 | 2.1 | 501.4 | -3.7 |
| 04:44 | 2.71 | 501.9 | -4.30 | 2.7 | 501.9 | -4.3 |
| 04:43 | 3.04 | 436.3 | -4.31 | 3.0 | 436.3 | -4.3 |
| 04:42 | 2.42 | 486.2 | -3.03 | 2.4 | 486.2 | -3.0 |
| 04:41 | 2.84 | 504.7 | -1.84 | 2.8 | 504.7 | -1.8 |
| 04:40 | 3.24 | 457.5 | -0.12 | 3.2 | 457.5 | -0.1 |
| 04:39 | 3.05 | 438.9 | 0.09 | 3.0 | 438.9 | 0.1 |
| 04:38 | 4.61 | 479.8 | -1.76 | 4.6 | 479.8 | -1.8 |
| 04:37 | 3.14 | 507.8 | -2.54 | 3.1 | 507.8 | -2.5 |
| 04:36 | 2.19 | 514.8 | -4.61 | 2.2 | 514.8 | -4.6 |
| 04:35 | 2.11 | 486.8 | -3.98 | 2.1 | 486.8 | -4.0 |
| 04:34 | 2.09 | 465.1 | -5.05 | 2.1 | 465.1 | -5.1 |
| 04:33 | 2.28 | 522.7 | -4.45 | 2.3 | 522.7 | -4.5 |
| 04:32 | 2.32 | 516.0 | -3.41 | 2.3 | 516.0 | -3.4 |
| 04:31 | 2.39 | 499.4 | -2.89 | 2.4 | 499.4 | -2.9 |
| 04:30 | 2.28 | 482.5 | -1.07 | 2.3 | 482.5 | -1.1 |
| 04:29 | 1.86 | 470.8 | -4.52 | 1.9 | 470.8 | -4.5 |
| 04:28 | 1.85 | 500.4 | -3.02 | 1.9 | 490.7 | -3.0 |
| 04:27 | 0.21 | 406.1 | -4.88 | 0.2 | 406.1 | -4.9 |
| 04:26 | 2.40 | 502.0 | -5.59 | 2.4 | 502.0 | -5.6 |
| 04:25 | 2.11 | 448.1 | -5.83 | 2.1 | 448.1 | -5.8 |
| 04:24 | 2.92 | 486.5 | -5.45 | 2.9 | 486.5 | -5.5 |
| 04:23 | 3.19 | 494.1 | -3.21 | 3.2 | 494.1 | -3.2 |
| 04:22 | 2.95 | 501.1 | -3.03 | 3.0 | 501.1 | -3.0 |
| 04:21 | 2.33 | 477.7 | -4.75 | 2.3 | 477.7 | -4.7 |
| 04:20 | 2.45 | 495.6 | -5.16 | 2.5 | 495.6 | -5.2 |
| 04:19 | 2.72 | 503.8 | -5.22 | 2.7 | 503.8 | -5.2 |
| 04:18 | 2.96 | 496.1 | -4.90 | 3.0 | 496.1 | -4.9 |
| 04:17 | 2.76 | 474.9 | 0.12 | 2.8 | 474.9 | 0.1 |
| 04:16 | 2.61 | 463.5 | -0.22 | 2.6 | 463.5 | -0.2 |
| 04:15 | 3.06 | 490.0 | 0.63 | 3.1 | 490.0 | 0.6 |
| 04:14 | 2.64 | 488.7 | 1.79 | 2.6 | 488.7 | 1.8 |
| 04:13 | 2.46 | 467.6 | 0.95 | 2.5 | 467.6 | 1.0 |
| 04:12 | 2.87 | 440.8 | 0.09 | 2.9 | 440.8 | 0.1 |
| 04:11 | 3.18 | 486.0 | 1.66 | 3.3 | 485.7 | 1.7 |
| 04:10 | 2.84 | 479.6 | 2.13 | 2.8 | 479.6 | 2.1 |
| 04:09 | 2.67 | 480.9 | 0.28 | 2.7 | 480.9 | 0.3 |
Built 2026-05-01 06:09 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -5.2 | 2.9 | -0.3 |
| velocity [km/s] | 426.6 | 525.6 | 482.5 |
| density [cm-3] | 1.9 | 5.6 | 3.0 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 161 | 7 | 94 |
| Maasi (MAS) | 154 | 8 | 89 |
| Kilpisjärvi (KIL) | 172 | 8 | 103 |
| Ivalo (IVA) | 120 | 6 | 70 |
| Muonio (MUO) | 122 | 6 | 71 |
| Sodankylä (SOD) | 139 | 6 | 59 |
| Pello (PEL) | 95 | 6 | 56 |
| Oulujärvi (OUJ) | 49 | 6 | 34 |
| Mekrijärvi (MEK) | 25 | 4 | 20 |
| Hankasalmi (HAN) | 26 | 4 | 24 |
| Nurmijärvi (NUR) | 15 | 5 | 24 |
| Tartu (TAR) | 13 | 4 | 19 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2026-05-01 06:02 from source
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.
Issue Time: 2026-04-30 23:09 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-04-30 23:09 UTC
Valid To: 2026-05-01 09:00 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: 2026-04-30 23:09 UTC
Valid To: 2026-05-01 09:00 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: 2026-04-30 20:35 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-04-30 20:35 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: 2026-04-30 20:35 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: 2026-04-30 20:06 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-04-30 20:05 UTC
Valid To: 2026-05-01 06:00 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: 2026-04-30 20:05 UTC
Valid To: 2026-05-01 06:00 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.
Built 2026-05-01 00:01 from source
