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Geomagnetic storms in Boise — June 21, 2026

June 21, 2026
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Maximum Kp index on June 21, 2026

Kp = 1+

Maximum Kp index on June 21, 2026

The Earth's magnetosphere was quiet

Kp = 1+

Geomagnetic storms in Boise on June 21, 2026

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

Time zone — UTC−06 — summer time (Boise | geographic coordinates — 43.61 N 116.24 W)

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Geomagnetic index Kp for 3 days
PNG API: JSON | TXT

Geomagnetic storms in Boise in June 2026

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

Time zone — UTC−06 — summer time (Boise | geographic coordinates — 43.61 N 116.24 W)

May 2026 July 2026
Daily Kp index in June 2026
PNG API: JSON | TXT

Geomagnetic activity indices on June 21, 2026

Geomagnetic index Ap 5
Solar radio flux F10.7 128