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Geomagnetic storms in Kostroma in August 2025

Geomagnetic storms in Kostroma in August 2025

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

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

Changes in the maximum daily geomagnetic index Kp in August 2025
This chart in PNG format — high resolution API data: JSON or TXT

Maximum of solar activity in August 2025

Solar radio flux (10.7 cm) = 163

Mean planetary A index = 47

Mean planetary Kp index = 6