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Geomagnetic storms in Phoenix — May 18, 2026

May 18, 2026
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Maximum Kp index on May 18, 2026

Kp = 4-

Maximum Kp index on May 18, 2026

The Earth's magnetosphere was quiet

Kp = 4-

Geomagnetic storms in Phoenix on May 18, 2026

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

Time zone — UTC−07 (Phoenix | geographic coordinates — 33.45 N 112.07 W)

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Geomagnetic index Kp for 3 days
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Geomagnetic storms in Phoenix in May 2026

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

Time zone — UTC−07 (Phoenix | geographic coordinates — 33.45 N 112.07 W)

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Daily Kp index in May 2026
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Geomagnetic activity indices on May 18, 2026

Geomagnetic index Ap 9
Solar radio flux F10.7 105