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Geomagnetic storms in Anchorage — December 18, 2025

December 18, 2025
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Maximum Kp index on December 18, 2025

Kp = 3+

Maximum Kp index on December 18, 2025

The Earth's magnetosphere was quiet

Kp = 3+

Geomagnetic storms in Anchorage on December 18, 2025

Changes in the geomagnetic index Kp from December 16 to 18, 2025 for mid latitudes

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

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Geomagnetic index Kp for 3 days
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Geomagnetic storms in Anchorage in December 2025

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
Daily Kp index in December 2025
PNG API: JSON | TXT

Geomagnetic activity indices on December 18, 2025

Geomagnetic index Ap 17
Solar radio flux F10.7 116