Geomagnetic storms in Yellowknife on December 18, 2025

December 18, 2025

Yellowknife change region

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Maximum Kp index on December 18, 2025

Kp = 4-

The Earth's magnetosphere was quiet

Kp = 4-

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

Time zone — UTC−07 (Yellowknife | geographic coordinates — 62.45 N 114.37 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−07 (Yellowknife | geographic coordinates — 62.45 N 114.37 W)

November 2025 January 2026

PNG API: JSON | TXT

Geomagnetic index A_p	17
Solar radio flux F10.7	116