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Geomagnetic storm forecast for London — December 21, 2025

December 21, 2025

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Geomagnetic storm forecast for London for December 21, 2025

the Earth's magnetosphere was expected to be calm (Kp = 3.67)

Geomagnetic storm forecast for London for December 21, 2025

the Earth's magnetosphere was expected to be calm (Kp = 3.67)

Geomagnetic storm forecast for three days from December 21, 2025

Geomagnetic index Kp forecast from December 21 to 23, 2025 for mid latitudes

Location — London (geographic coordinates — 51.51 N 0.13 W | time zone UTC+00)

Geomagnetic index Kp forecast for three days
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Probability of geomagnetic storms for three days from December 21, 2025

Estimated probability of geomagnetic storms and disturbances from December 21 to 23, 2025.

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

Dec 21, 2025 Probability of geomagnetic storms Dec 21, 2025
Dec 22, 2025 Probability of geomagnetic storms Dec 22, 2025
Dec 23, 2025 Probability of geomagnetic storms Dec 23, 2025

Forecast of Ap and F10.7 indices for three days from December 21, 2025

Estimated values of Ap and F10.7 indices from December 21 to 23, 2025 for time zone UTC+00

  Dec 21, 2025 Dec 22, 2025 Dec 23, 2025
Ap 5 20 22
F10.7 115 125 135

Geomagnetic storm forecast for a month from December 21, 2025

Forecast of the daily maximum value of geomagnetic index Kp from December 21, 2025 to January 20, 2026 (31 days).

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

Geomagnetic index Kp forecast for the next month
PNG API: JSON | TXT