Geomagnetic storms in Portland — Sep 30, 2021
Geomagnetic storms in Portland on Sep 30, 2021
geomagnetic disturbances were observed (Kp = 4.00)
Geomagnetic storms in the last 3 days
Changes in the geomagnetic index Kp from September 28 to 30, 2021 for mid latitudes
Location — Portland (geographic coordinates — 45.54 N -122.65 W | time zone UTC-08)

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Geomagnetic storms in Portland in September 2021
Changes in the maximum daily geomagnetic index Kp in September 2021 for mid latitudes
Location — Portland (geographic coordinates — 45.54 N -122.65 W | time zone UTC-08)

This chart in PNG format — high resolution
API data: JSON or TXT
Other activity indices
Index AP = 5
Index F10.7 = 95