Geomagnetic storms in Anchorage on December 17, 2025

December 17, 2025

Anchorage change region

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Maximum Kp index on December 17, 2025

Kp = 5-

Geomagnetic disturbances were observed

Kp = 5-

Changes in the geomagnetic index Kp from December 15 to 17, 2025 for mid latitudes

Time zone — UTC−09 (Anchorage | geographic coordinates — 61.22 N 149.88 W)

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PNG API: JSON | TXT

Changes in the maximum daily geomagnetic index Kp in December 2025 for mid latitudes

Time zone — UTC−09 (Anchorage | geographic coordinates — 61.22 N 149.88 W)

November 2025 January 2026

PNG API: JSON | TXT

Geomagnetic index A_p	18
Solar radio flux F10.7	119