Geomagnetic storms in Sarnia on September 17, 2026

September 17, 2026

Sarnia change region

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Maximum Kp index on September 17, 2026

Kp = 3

The Earth's magnetosphere was quiet

Kp = 3

Changes in the geomagnetic index Kp from September 15 to 17, 2026 for mid latitudes

Time zone — UTC−04 — summer time (Sarnia | geographic coordinates — 42.99 N 82.4 W)

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

Time zone — UTC−04 — summer time (Sarnia | geographic coordinates — 42.99 N 82.4 W)

August 2026 October 2026

PNG API: JSON | TXT

Geomagnetic index A_p	9
Solar radio flux F10.7	97