Geomagnetic storms in Chicago on November 12, 2025

November 12, 2025

Chicago change region

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Maximum Kp index on November 12, 2025

Kp = 7+

A geomagnetic storm was recorded — level G3

Kp = 7+

Changes in the geomagnetic index Kp from November 10 to 12, 2025 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 November 2025 for mid latitudes

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

October 2025 December 2025

PNG API: JSON | TXT

Geomagnetic index A_p	127
Solar radio flux F10.7	163