Geomagnetic storms in Helena on September 5, 2025

September 5, 2025

Helena change region

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Maximum Kp index on September 5, 2025

Kp = 4

Geomagnetic disturbances were observed

Kp = 4

Changes in the geomagnetic index Kp from September 3 to 5, 2025 for mid latitudes

Time zone — UTC−06 — summer time (Helena | geographic coordinates — 46.6 N 112.03 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−06 — summer time (Helena | geographic coordinates — 46.6 N 112.03 W)

August 2025 October 2025

PNG API: JSON | TXT

Geomagnetic index A_p	8
Solar radio flux F10.7	149