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Geomagnetic storms in Portland — December 21, 2025

December 21, 2025
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Maximum Kp index on December 21, 2025

Kp = 5

Maximum Kp index on December 21, 2025

A geomagnetic storm was recorded — level G1

Kp = 5

Geomagnetic storms in Portland on December 21, 2025

Changes in the geomagnetic index Kp from December 19 to 21, 2025 for mid latitudes

Time zone — UTC−08 (Portland | geographic coordinates — 45.54 N 122.65 W)

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Geomagnetic index Kp for 3 days
PNG API: JSON | TXT

Geomagnetic storms in Portland in December 2025

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

Time zone — UTC−08 (Portland | geographic coordinates — 45.54 N 122.65 W)

November 2025 January 2026
Daily Kp index in December 2025
PNG API: JSON | TXT

Geomagnetic activity indices on December 21, 2025

Geomagnetic index Ap 27
Solar radio flux F10.7 124