Geomagnetic storm forecast for Helena — September 29, 2025
Geomagnetic storm forecast for Helena for Sep 29, 2025
geomagnetic storm was expected — level G3.3 (Kp = 7.33)
Geomagnetic storm forecast for 3 days
Geomagnetic index Kp forecast from Sep 29, 2025 to Oct 01, 2025 for mid latitudes
Location — Helena (geographic coordinates — 46.6 N -112.03 W | time zone UTC-06 - summer time)
This chart in PNG format — high resolution
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Probability of geomagnetic storms for 3 days
Estimated probability for Earth's magnetosphere state from Sep 29, 2025 to Oct 01, 2025.
Information is provided for mid latitudes for time zone UTC+00
29.09.2025
30.09.2025
01.10.2025
3-day forecast for Ap and F10.7 indices
Estimated values of Ap and F10.7 indices from Sep 29, 2025 to Oct 01, 2025 for time zone UTC+00
| 29.09.2025 | 30.09.2025 | 01.10.2025 | |
|---|---|---|---|
| Ap | 15 | 8 | 5 |
| F10.7 | 170 | 180 | 180 |
Geomagnetic storm forecast for a month
Forecast of the daily maximal value of geomagnetic index Kp for 1 month (31 days) from Sep 29, 2025 to Oct 01, 2025
Information is provided for mid latitudes (time zone UTC-06)
This chart in PNG format — high resolution
API data: JSON or TXT