Geomagnetic storms in Phoenix on December 4, 2025

December 4, 2025

Phoenix change region

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Maximum Kp index on December 4, 2025

Kp = 5-

Geomagnetic disturbances were observed

Kp = 5-

Changes in the geomagnetic index Kp from December 2 to 4, 2025 for mid latitudes

Time zone — UTC−07 (Phoenix | geographic coordinates — 33.45 N 112.07 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 (Phoenix | geographic coordinates — 33.45 N 112.07 W)

November 2025 January 2026

PNG API: JSON | TXT

Geomagnetic index A_p	32
Solar radio flux F10.7	220