Geomagnetic storms in Chicago on February 12, 2026

February 12, 2026

Chicago change region

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Maximum Kp index on February 12, 2026

Kp = 4

Geomagnetic disturbances were observed

Kp = 4

Changes in the geomagnetic index Kp from February 10 to 12, 2026 for mid latitudes

Time zone — UTC−06 (Chicago | geographic coordinates — 41.84 N 87.68 W)

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PNG API: JSON | TXT

Changes in the maximum daily geomagnetic index Kp in February 2026 for mid latitudes

Time zone — UTC−06 (Chicago | geographic coordinates — 41.84 N 87.68 W)

January 2026 March 2026

PNG API: JSON | TXT

Geomagnetic index A_p	9
Solar radio flux F10.7	129