Geomagnetic storm forecast for London

September 17, 2025

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Geomagnetic storm forecast for London for September 17, 2025

geomagnetic disturbances were expected (Kp = 4.00)

geomagnetic disturbances were expected (Kp = 4.00)

Geomagnetic index Kp forecast from September 17 to 19, 2025 for mid latitudes

Location — London (geographic coordinates — 51.51 N 0.13 W | time zone UTC+01 — summer time)

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Estimated probability of geomagnetic storms and disturbances from September 17 to 19, 2025.

Information is provided for mid latitudes for time zone UTC+00

Sep 17, 2025 Probability of geomagnetic storms Sep 17, 2025

Sep 18, 2025 Probability of geomagnetic storms Sep 18, 2025

Sep 19, 2025 Probability of geomagnetic storms Sep 19, 2025

Estimated values of Ap and F10.7 indices from September 17 to 19, 2025 for time zone UTC+00

	Sep 17, 2025	Sep 18, 2025	Sep 19, 2025
Ap	10	5	5
F10.7	125	130	135

Forecast of the daily maximum value of geomagnetic index Kp from September 17 to October 17, 2025 (31 days).

Information is provided for mid latitudes (time zone UTC+01)

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