Geomagnetic storms in Kostroma on August 18, 2026

August 18, 2026

Kostroma change region

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Maximum Kp index on August 18, 2026

Kp = 5+

A geomagnetic storm was recorded — level G1

Kp = 5+

Changes in the geomagnetic index Kp from August 16 to 18, 2026 for mid latitudes

Time zone — UTC+03 (Kostroma | geographic coordinates — 57.77 N 40.93 E)

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PNG API: JSON | TXT

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

Time zone — UTC+03 (Kostroma | geographic coordinates — 57.77 N 40.93 E)

July 2026 September 2026

PNG API: JSON | TXT

Geomagnetic index A_p	25
Solar radio flux F10.7	125