Geomagnetic storms in Thunder bay on August 9, 2025

August 9, 2025

Thunder bay change region

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Maximum Kp index on August 9, 2025

Kp = 6

A geomagnetic storm was recorded — level G2

Kp = 6

Changes in the geomagnetic index Kp from August 7 to 9, 2025 for mid latitudes

Time zone — UTC−04 — summer time (Thunder bay | geographic coordinates — 48.42 N 89.28 W)

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PNG API: JSON | TXT

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

Time zone — UTC−04 — summer time (Thunder bay | geographic coordinates — 48.42 N 89.28 W)

July 2025 September 2025

PNG API: JSON | TXT

Geomagnetic index A_p	47
Solar radio flux F10.7	140