Geomagnetic storms in Annapolis — December 17, 2025
Geomagnetic storms in Annapolis on Dec 17, 2025
geomagnetic disturbances were observed (Kp = 4.67)
Geomagnetic storms in the last 3 days
Changes in the geomagnetic index Kp from December 15 to 17, 2025 for mid latitudes
Location — Annapolis (geographic coordinates — 38.97 N -76.5 W | time zone UTC-05)
This chart in PNG format — high resolution
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Geomagnetic storms in Annapolis in December 2025
Changes in the maximum daily geomagnetic index Kp in December 2025 for mid latitudes
Location — Annapolis (geographic coordinates — 38.97 N -76.5 W | time zone UTC-05)
This chart in PNG format — high resolution
API data: JSON or TXT
Other activity indices
Index AP = 18
Index F10.7 = 119