Geomagnetic storms in Sarnia on August 21, 2026

August 21, 2026

Sarnia change region

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Maximum Kp index on August 21, 2026

Kp = 2+

The Earth's magnetosphere was quiet

Kp = 2+

Changes in the geomagnetic index Kp from August 19 to 21, 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 August 2026 for mid latitudes

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

July 2026 September 2026

PNG API: JSON | TXT

Geomagnetic index A_p	8
Solar radio flux F10.7	126