SeadedLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 12:23 | - | - | - | - | - | - |
| 12:22 | - | - | - | - | - | - |
| 12:21 | - | - | -2.01 | - | - | - |
| 12:20 | 3.94 | 443.6 | -1.59 | - | - | - |
| 12:19 | 2.75 | 436.8 | -1.34 | - | - | - |
| 12:18 | 2.47 | 438.4 | -1.23 | - | - | - |
| 12:17 | 3.15 | 443.8 | -1.02 | - | - | - |
| 12:16 | 3.40 | 443.3 | -1.46 | - | - | - |
| 12:15 | 2.67 | 445.1 | -1.52 | - | - | - |
| 12:14 | 2.38 | 438.2 | -0.46 | - | - | - |
| 12:13 | 1.46 | 434.6 | 0.58 | - | - | - |
| 12:12 | 2.16 | 440.8 | 1.31 | - | - | - |
| 12:11 | 2.02 | 451.4 | 1.78 | - | - | - |
| 12:10 | 1.86 | 440.4 | 2.66 | - | - | - |
| 12:09 | 3.17 | 445.5 | 1.82 | - | - | - |
| 12:08 | 2.83 | 455.4 | 0.25 | - | - | - |
| 12:07 | 4.26 | 454.0 | -0.92 | 4.3 | 454.0 | -0.9 |
| 12:06 | 3.41 | 455.3 | -1.33 | 3.4 | 455.3 | -1.3 |
| 12:05 | 2.09 | 434.3 | -2.46 | 2.1 | 434.3 | -2.5 |
| 12:04 | 2.26 | 432.1 | -0.73 | 2.3 | 432.1 | -0.7 |
| 12:03 | 6.41 | 449.5 | -0.18 | 6.4 | 449.5 | -0.2 |
| 12:02 | 6.09 | 453.3 | -0.06 | 6.1 | 453.3 | -0.1 |
| 12:01 | 2.40 | 439.4 | -0.29 | 2.4 | 439.4 | -0.3 |
| 12:00 | 1.74 | 432.5 | 0.21 | 1.7 | 432.5 | 0.2 |
| 11:59 | 4.35 | 438.5 | 0.35 | 4.3 | 438.4 | 0.3 |
| 11:58 | 7.11 | 444.7 | 1.26 | 7.1 | 444.2 | 1.3 |
| 11:57 | 1.73 | 447.9 | 0.84 | 1.7 | 447.9 | 0.8 |
| 11:56 | 1.57 | 426.0 | 1.98 | 1.6 | 426.0 | 2.0 |
| 11:55 | 9.47 | 471.3 | 1.02 | 9.5 | 471.3 | 1.0 |
| 11:54 | - | - | 0.98 | - | - | 1.0 |
| 11:53 | 2.12 | 443.5 | 1.12 | 2.1 | 443.5 | 1.1 |
| 11:52 | 0.95 | 424.5 | 0.51 | 1.0 | 424.5 | 0.5 |
| 11:51 | 1.67 | 434.5 | 1.32 | 1.7 | 434.5 | 1.3 |
| 11:50 | 1.96 | 433.3 | 0.31 | 2.0 | 433.3 | 0.3 |
| 11:49 | 2.24 | 435.4 | -0.17 | 2.2 | 435.4 | -0.2 |
| 11:48 | 2.66 | 439.5 | 0.09 | 2.7 | 439.5 | 0.1 |
| 11:47 | 1.97 | 435.2 | 0.03 | 2.0 | 435.2 | 0.0 |
| 11:46 | 1.39 | 430.2 | 0.11 | 1.4 | 430.2 | 0.1 |
| 11:45 | 1.55 | 438.6 | 0.58 | 1.5 | 438.6 | 0.6 |
| 11:44 | 1.63 | 453.8 | 0.61 | 1.6 | 453.8 | 0.6 |
| 11:43 | 1.44 | 459.1 | 1.18 | 1.4 | 459.1 | 1.2 |
| 11:42 | 1.17 | 452.3 | 0.44 | 1.2 | 452.3 | 0.4 |
| 11:41 | 1.11 | 439.4 | 0.55 | 1.1 | 439.4 | 0.5 |
| 11:40 | 1.56 | 437.3 | 0.35 | 1.9 | 437.7 | 0.4 |
| 11:39 | 2.56 | 439.8 | -0.36 | 2.6 | 439.8 | -0.4 |
| 11:38 | 1.90 | 432.8 | 0.01 | 1.9 | 432.8 | 0.0 |
| 11:37 | 0.96 | 426.1 | 0.31 | 1.0 | 426.1 | 0.3 |
| 11:36 | 2.18 | 440.4 | 0.78 | 2.2 | 440.4 | 0.8 |
| 11:35 | 1.80 | 448.7 | 1.36 | 1.8 | 448.7 | 1.4 |
| 11:34 | 1.59 | 440.4 | 1.79 | 1.6 | 440.4 | 1.8 |
| 11:33 | 0.77 | 439.4 | 1.67 | 0.8 | 439.4 | 1.7 |
| 11:32 | 1.53 | 448.6 | 2.36 | 1.5 | 448.6 | 2.4 |
| 11:31 | 1.76 | 453.8 | 2.07 | 1.8 | 453.8 | 2.1 |
| 11:30 | 1.08 | 444.2 | 2.21 | 1.1 | 444.2 | 2.2 |
| 11:29 | 0.71 | 440.8 | 1.92 | 0.7 | 440.8 | 1.9 |
| 11:28 | 0.74 | 448.2 | 3.15 | 1.5 | 451.9 | 3.2 |
| 11:27 | 1.83 | 450.3 | 2.89 | 1.8 | 450.3 | 2.9 |
| 11:26 | 1.47 | 444.4 | 2.02 | 1.5 | 444.4 | 2.0 |
| 11:25 | 1.02 | 424.9 | 1.72 | 1.0 | 424.9 | 1.7 |
| 11:24 | 0.90 | 433.7 | 2.29 | 0.9 | 433.7 | 2.3 |
| 11:23 | 1.69 | 432.4 | 2.09 | 1.7 | 432.4 | 2.1 |
| 11:22 | 2.20 | 434.7 | 1.28 | 2.2 | 434.7 | 1.3 |
| 11:21 | 2.20 | - | 1.36 | 2.2 | - | 1.4 |
| 11:20 | 1.61 | 436.8 | 1.29 | 1.6 | 436.8 | 1.3 |
| 11:19 | 1.49 | 433.5 | 1.46 | 1.5 | 433.5 | 1.5 |
| 11:18 | 1.86 | 433.7 | 1.37 | 1.9 | 433.7 | 1.4 |
| 11:17 | 1.37 | 433.1 | 1.39 | 1.4 | 433.1 | 1.4 |
| 11:16 | 1.67 | 449.1 | 2.70 | 1.7 | 449.1 | 2.7 |
| 11:15 | 1.86 | 450.2 | 2.45 | 1.9 | 450.2 | 2.5 |
| 11:14 | 2.01 | 445.4 | 1.92 | 2.0 | 445.4 | 1.9 |
| 11:13 | 2.06 | 444.3 | 2.46 | 2.0 | 443.8 | 2.5 |
| 11:12 | 1.67 | 437.5 | 2.23 | 1.7 | 437.5 | 2.2 |
| 11:11 | 1.64 | 434.4 | 1.76 | 1.6 | 434.4 | 1.8 |
| 11:10 | 1.68 | 443.0 | 1.48 | 2.4 | 446.3 | 1.5 |
| 11:09 | 2.78 | 455.1 | 1.55 | 2.8 | 455.1 | 1.6 |
| 11:08 | 2.02 | 448.6 | 2.23 | 2.0 | 448.6 | 2.2 |
| 11:07 | 2.33 | 442.2 | 1.26 | 2.3 | 442.2 | 1.3 |
| 11:06 | 1.97 | 443.3 | 1.04 | 2.0 | 443.3 | 1.0 |
| 11:05 | 8.92 | 450.0 | 1.84 | 8.9 | 450.0 | 1.8 |
| 11:04 | 4.02 | 456.5 | 0.82 | 4.0 | 456.5 | 0.8 |
| 11:03 | 2.68 | 437.7 | 0.61 | 2.7 | 437.7 | 0.6 |
| 11:02 | 2.17 | 435.1 | 0.53 | 2.2 | 435.1 | 0.5 |
| 11:01 | 2.16 | 439.0 | 0.55 | 2.2 | 439.0 | 0.6 |
| 11:00 | - | - | 1.44 | - | - | 1.4 |
| 10:59 | - | - | 1.90 | - | - | 1.9 |
| 10:58 | 2.65 | 449.3 | -1.60 | 2.6 | 449.3 | -1.6 |
| 10:57 | 2.89 | 456.7 | -1.03 | 2.9 | 456.7 | -1.0 |
| 10:56 | 1.89 | 463.8 | -0.39 | 1.9 | 463.8 | -0.4 |
| 10:55 | 1.18 | 474.0 | 2.05 | 1.2 | 474.0 | 2.0 |
| 10:54 | 1.38 | 457.1 | 2.09 | 1.4 | 457.1 | 2.1 |
| 10:53 | 2.37 | 442.8 | 0.79 | 2.4 | 442.8 | 0.8 |
| 10:52 | 4.17 | 460.1 | -1.74 | 4.2 | 460.1 | -1.7 |
| 10:51 | 4.25 | 472.8 | -1.48 | 4.2 | 472.8 | -1.5 |
| 10:50 | 3.03 | 460.5 | -1.99 | 3.0 | 460.5 | -2.0 |
| 10:49 | 3.83 | 474.8 | -2.02 | 3.8 | 474.8 | -2.0 |
| 10:48 | 3.85 | 475.0 | -2.10 | 3.8 | 475.0 | -2.1 |
| 10:47 | 4.32 | 480.1 | -2.16 | 4.3 | 480.1 | -2.2 |
| 10:46 | 3.63 | 466.7 | -1.56 | 3.6 | 466.7 | -1.6 |
| 10:45 | 3.75 | 457.7 | -1.82 | 3.7 | 457.7 | -1.8 |
| 10:44 | 3.61 | 458.1 | -1.68 | 3.6 | 458.1 | -1.7 |
| 10:43 | 3.47 | 460.0 | -2.40 | 3.5 | 460.0 | -2.4 |
| 10:42 | 3.51 | 458.3 | -2.06 | 3.4 | 457.3 | -2.1 |
| 10:41 | 1.95 | 456.4 | -2.01 | 2.8 | 451.5 | -2.0 |
| 10:40 | 2.61 | 449.0 | -1.46 | 2.6 | 449.0 | -1.5 |
| 10:39 | 3.16 | 451.9 | -0.99 | 3.2 | 451.9 | -1.0 |
| 10:38 | 3.37 | 454.9 | -1.27 | 3.4 | 454.9 | -1.3 |
| 10:37 | 3.76 | 449.8 | -0.81 | 3.8 | 449.8 | -0.8 |
| 10:36 | 1.32 | 434.0 | -1.27 | 1.3 | 434.0 | -1.3 |
| 10:35 | 2.44 | 443.8 | -0.45 | 2.4 | 443.8 | -0.4 |
| 10:34 | 2.29 | 443.0 | -0.77 | 2.3 | 443.0 | -0.8 |
| 10:33 | 3.90 | 451.7 | -0.81 | 3.9 | 451.7 | -0.8 |
| 10:32 | 3.01 | 438.3 | -2.02 | 3.0 | 438.3 | -2.0 |
| 10:31 | 3.05 | 440.8 | -1.14 | 3.0 | 440.8 | -1.1 |
| 10:30 | 3.61 | 446.6 | -0.86 | 3.6 | 446.6 | -0.9 |
| 10:29 | 3.06 | 452.8 | -1.02 | 3.1 | 452.8 | -1.0 |
| 10:28 | 1.46 | 438.7 | -0.30 | 1.5 | 438.7 | -0.3 |
| 10:27 | 1.14 | 434.4 | -0.32 | 1.1 | 434.4 | -0.3 |
| 10:26 | 1.63 | 447.3 | 0.86 | 1.4 | 443.9 | 0.9 |
| 10:25 | 2.13 | 457.8 | 1.32 | 1.9 | 454.3 | 1.3 |
| 10:24 | 1.91 | 448.5 | 0.31 | 1.9 | 448.5 | 0.3 |
Built 2026-04-23 12:24 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -2.5 | 3.1 | 1.0 |
| velocity [km/s] | 424.5 | 471.3 | 441.6 |
| density [cm-3] | 0.7 | 9.5 | 2.2 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 51 | 5 | 70 |
| Maasi (MAS) | 54 | 5 | 78 |
| Kilpisjärvi (KIL) | 49 | 5 | 69 |
| Ivalo (IVA) | 45 | 4 | 64 |
| Muonio (MUO) | 44 | 5 | 58 |
| Sodankylä (SOD) | 41 | 5 | 59 |
| Pello (PEL) | 40 | 4 | 53 |
| Oulujärvi (OUJ) | 31 | 4 | 44 |
| Mekrijärvi (MEK) | 24 | 3 | 29 |
| Hankasalmi (HAN) | 18 | 4 | 34 |
| Nurmijärvi (NUR) | 21 | 4 | 32 |
| Tartu (TAR) | 16 | 3 | 25 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2026-04-23 12:17 from source
Issue Time: 2026-04-23 09:14 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-04-23 08:59 UTC
Estimated Velocity: 722 km/s
Comment: Report from San Vito
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: 2026-04-23 08:59 UTC
Estimated Velocity: 722 km/s
Comment: Report from San Vito
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: 2026-04-23 08:59 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-04-23 08:44 UTC
Maximum Time: 2026-04-23 08:44 UTC
End Time: 2026-04-23 08:44 UTC
Duration: 1 minutes
Peak Flux: 130 sfu
Latest Penticton Noon Flux: 116 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
SUMMARY: 10cm Radio Burst
Begin Time: 2026-04-23 08:44 UTC
Maximum Time: 2026-04-23 08:44 UTC
End Time: 2026-04-23 08:44 UTC
Duration: 1 minutes
Peak Flux: 130 sfu
Latest Penticton Noon Flux: 116 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Issue Time: 2026-04-23 05:35 UTC
ALERT: Type IV Radio Emission
Begin Time: 2026-04-23 05:13 UTC
Comment: Report from San Vito
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
ALERT: Type IV Radio Emission
Begin Time: 2026-04-23 05:13 UTC
Comment: Report from San Vito
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
Issue Time: 2026-04-23 05:10 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-04-23 04:50 UTC
Estimated Velocity: 1033 km/s
Comment: Report from San Vito
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: 2026-04-23 04:50 UTC
Estimated Velocity: 1033 km/s
Comment: Report from San Vito
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: 2026-04-23 04:59 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3682
Begin Time: 2026-04-19 19:20 UTC
Yesterday Maximum 2MeV Flux: 4922 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3682
Begin Time: 2026-04-19 19:20 UTC
Yesterday Maximum 2MeV Flux: 4922 pfu
Issue Time: 2026-04-22 05:03 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3681
Begin Time: 2026-04-19 19:20 UTC
Yesterday Maximum 2MeV Flux: 4987 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3681
Begin Time: 2026-04-19 19:20 UTC
Yesterday Maximum 2MeV Flux: 4987 pfu
Issue Time: 2026-04-21 16:51 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5325
Valid From: 2026-04-20 08:05 UTC
Now Valid Until: 2026-04-21 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: 5325
Valid From: 2026-04-20 08:05 UTC
Now Valid Until: 2026-04-21 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: 2026-04-21 13:41 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3680
Begin Time: 2026-04-19 19:20 UTC
Yesterday Maximum 2MeV Flux: 1344 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3680
Begin Time: 2026-04-19 19:20 UTC
Yesterday Maximum 2MeV Flux: 1344 pfu
Issue Time: 2026-04-21 05:45 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5324
Valid From: 2026-04-20 08:05 UTC
Now Valid Until: 2026-04-21 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: 5324
Valid From: 2026-04-20 08:05 UTC
Now Valid Until: 2026-04-21 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.
Issue Time: 2026-04-21 05:44 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2228
Valid From: 2026-04-21 01:10 UTC
Now Valid Until: 2026-04-21 15:00 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: 2228
Valid From: 2026-04-21 01:10 UTC
Now Valid Until: 2026-04-21 15:00 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: 2026-04-21 01:53 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-04-21 01:48 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: 2026-04-21 01:48 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: 2026-04-21 01:10 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5323
Valid From: 2026-04-20 08:05 UTC
Now Valid Until: 2026-04-21 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: 5323
Valid From: 2026-04-20 08:05 UTC
Now Valid Until: 2026-04-21 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: 2026-04-21 01:10 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-04-21 01:10 UTC
Valid To: 2026-04-21 06:00 UTC
Warning Condition: Persistence
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: 2026-04-21 01:10 UTC
Valid To: 2026-04-21 06:00 UTC
Warning Condition: Persistence
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: 2026-04-20 20:23 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3679
Begin Time: 2026-04-19 19:20 UTC
Yesterday Maximum 2MeV Flux: 1297 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3679
Begin Time: 2026-04-19 19:20 UTC
Yesterday Maximum 2MeV Flux: 1297 pfu
Issue Time: 2026-04-20T19:34:00
ALERT: Geomagnetic K-index of 5
THRESHOLD: 2026-04-20 19:34 UTC
ISSUED BY: Forecaster User
SYNOPTIC PERIOD: 1800-2100
ACTIVE WARNING: YES
NOAA SCALE: G1 - Minor
COMMENT
G1 - Minor
ALERT: Geomagnetic K-index of 5
THRESHOLD: 2026-04-20 19:34 UTC
ISSUED BY: Forecaster User
SYNOPTIC PERIOD: 1800-2100
ACTIVE WARNING: YES
NOAA SCALE: G1 - Minor
COMMENT
G1 - Minor
Issue Time: 2026-04-20T17:36:00
ALERT: Geomagnetic K-index of 5
THRESHOLD: 2026-04-20 17:34 UTC
ISSUED BY: Forecaster User
SYNOPTIC PERIOD: 1500-1800
ACTIVE WARNING: YES
NOAA SCALE: G1 - Minor
COMMENT
G1 - Minor
ALERT: Geomagnetic K-index of 5
THRESHOLD: 2026-04-20 17:34 UTC
ISSUED BY: Forecaster User
SYNOPTIC PERIOD: 1500-1800
ACTIVE WARNING: YES
NOAA SCALE: G1 - Minor
COMMENT
G1 - Minor
Issue Time: 2026-04-20T17:21:00
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5323
Valid From: 2026-04-20T08:05:00
Now Valid Until: 2026-04-21 03:00
Warning Condition: Persistence
Extended 2026-04-20 17: 21 by Forecaster User
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5323
Valid From: 2026-04-20T08:05:00
Now Valid Until: 2026-04-21 03:00
Warning Condition: Persistence
Extended 2026-04-20 17: 21 by Forecaster User
Issue Time: 2026-04-20T17:20:00
WARNING: Geomagnetic K-index of 5 expected
ISSUED BY: Forecaster User
VALID FROM: 2026-04-20 17:20 UTC
VALID TO: 2026-04-20 23:59 UTC
WARNING CONDITIONS: Onset
NOAA SCALE: G1 - Minor
COMMENT
G1 - Minor
WARNING: Geomagnetic K-index of 5 expected
ISSUED BY: Forecaster User
VALID FROM: 2026-04-20 17:20 UTC
VALID TO: 2026-04-20 23:59 UTC
WARNING CONDITIONS: Onset
NOAA SCALE: G1 - Minor
COMMENT
G1 - Minor
Issue Time: 2026-04-20 14:20 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5322
Valid From: 2026-04-20 08:05 UTC
Now Valid Until: 2026-04-20 21:00 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.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5322
Valid From: 2026-04-20 08:05 UTC
Now Valid Until: 2026-04-20 21:00 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 2026-04-23 09:16 from source
