Geomagnetic storms in Concord on September 15, 2026

September 15, 2026

Concord change region

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Maximum Kp index on September 15, 2026

Kp = 4-

The Earth's magnetosphere was quiet

Kp = 4-

Changes in the geomagnetic index Kp from September 13 to 15, 2026 for mid latitudes

Time zone — UTC−04 — summer time (Concord | geographic coordinates — 43.22 N 71.55 W)

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PNG API: JSON | TXT

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

Time zone — UTC−04 — summer time (Concord | geographic coordinates — 43.22 N 71.55 W)

August 2026 October 2026

PNG API: JSON | TXT

Geomagnetic index A_p	8
Solar radio flux F10.7	107