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Geomagnetic storms in Philadelphia — August 21, 2026

August 21, 2026
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Maximum Kp index on August 21, 2026

Kp = 2+

Maximum Kp index on August 21, 2026

The Earth's magnetosphere was quiet

Kp = 2+

Geomagnetic storms in Philadelphia on August 21, 2026

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

Time zone — UTC−04 — summer time (Philadelphia | geographic coordinates — 40.01 N 75.13 W)

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Geomagnetic index Kp for 3 days
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Geomagnetic storms in Philadelphia in August 2026

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

Time zone — UTC−04 — summer time (Philadelphia | geographic coordinates — 40.01 N 75.13 W)

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Daily Kp index in August 2026
PNG API: JSON | TXT

Geomagnetic activity indices on August 21, 2026

Geomagnetic index Ap 8
Solar radio flux F10.7 126