Geomagnetic storm forecast for London on April 21, 2026

April 21, 2026

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Forecast for April 21, 2026

geomagnetic disturbances were expected (Kp = 5-)

geomagnetic disturbances were expected (Kp = 5-)

Geomagnetic index Kp forecast from April 21 to 23, 2026 for mid latitudes

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

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Estimated probability of geomagnetic storms and disturbances from April 21 to 23, 2026.

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

Apr 21, 2026 Probability of geomagnetic storms Apr 21, 2026

Apr 22, 2026 Probability of geomagnetic storms Apr 22, 2026

Apr 23, 2026 Probability of geomagnetic storms Apr 23, 2026

Estimated values of Ap and F10.7 indices from April 21 to 23, 2026 for time zone UTC+00

	Apr 21, 2026	Apr 22, 2026	Apr 23, 2026
Ap	18	10	5
F10.7	128	130	155

Forecast of the daily maximum value of geomagnetic index Kp from April 21 to May 21, 2026 (31 days).

Information is provided for mid latitudes (region — London | time zone UTC+01)

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