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Geomagnetic storms in Portland — August 2026

August 2026
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Geomagnetic storms in Portland in August 2026

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

Time zone — UTC−07 — summer time (Portland | geographic coordinates — 45.54 N 122.65 W)

Changes in the maximum daily geomagnetic index Kp in August 2026
PNG API: JSON | TXT

Geomagnetic storm calendar in August 2026 by time in Portland

Days with magnetic storms — 3 Days with geomagnetic disturbances — 1

  • G1–G3
  • G4–G5
  • Disturbances
  • Quiet day

Ap and F10.7 index values in August 2026

Maximum value of the Ap index for the month — 38 Maximum value of the F10.7 index for the month — 140 Maximum value of the Kp index for the month — 6-

  • F10.7 — solar radio flux at 10.7 cm (top value)
  • Ap — geomagnetic index (bottom value)