Geomagnetic storms in Austin on September 23, 2025

September 23, 2025

Austin change region

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Maximum Kp index on September 23, 2025

Kp = 4-

The Earth's magnetosphere was quiet

Kp = 4-

Changes in the geomagnetic index Kp from September 21 to 23, 2025 for mid latitudes

Time zone — UTC−05 — summer time (Austin | geographic coordinates — 30.27 N 97.75 W)

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PNG API: JSON | TXT

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

Time zone — UTC−05 — summer time (Austin | geographic coordinates — 30.27 N 97.75 W)

August 2025 October 2025

PNG API: JSON | TXT

Geomagnetic index A_p	14
Solar radio flux F10.7	171