Geomagnetic storm forecast on September 17, 2026

September 17, 2026

UTC+00 change region

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Geomagnetic storm forecast for September 17, 2026

geomagnetic disturbances were expected (Kp = 5-)

geomagnetic disturbances were expected (Kp = 5-)

Geomagnetic index Kp forecast from September 17 to 19, 2026 for mid latitudes

Time zone — UTC+00

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Estimated probability of geomagnetic storms and disturbances from September 17 to 19, 2026.

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

Sep 17, 2026 Probability of geomagnetic storms Sep 17, 2026

Sep 18, 2026 Probability of geomagnetic storms Sep 18, 2026

Sep 19, 2026 Probability of geomagnetic storms Sep 19, 2026

Estimated values of Ap and F10.7 indices from September 17 to 19, 2026 for time zone UTC+00

	Sep 17, 2026	Sep 18, 2026	Sep 19, 2026
Ap	22	12	8
F10.7	100	95	90

Forecast of the daily maximum value of geomagnetic index Kp from September 17 to October 17, 2026 (31 days).

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

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