Geomagnetic storms in San Antonio on April 4, 2026

April 4, 2026

San Antonio change region

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Maximum Kp index on April 4, 2026

Kp = 4-

The Earth's magnetosphere was quiet

Kp = 4-

Changes in the geomagnetic index Kp from April 2 to 4, 2026 for mid latitudes

Time zone — UTC−05 — summer time (San Antonio | geographic coordinates — 29.46 N 98.52 W)

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PNG API: JSON | TXT

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

Time zone — UTC−05 — summer time (San Antonio | geographic coordinates — 29.46 N 98.52 W)

March 2026 May 2026

PNG API: JSON | TXT

Geomagnetic index A_p	16
Solar radio flux F10.7	128