Geomagnetic storms — Mar 26, 2009
Geomagnetic storms in London on Mar 26, 2009
the Earth's magnetosphere was quiet (Kp = 3.00)
Geomagnetic storms in the last 3 days
Changes in the geomagnetic index Kp from March 24 to 26, 2009 for mid latitudes
Location — London (geographic coordinates — 51.51 N -0.13 W | time zone UTC+00)

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Geomagnetic storms in London in March 2009
Changes in the maximum daily geomagnetic index Kp in March 2009 for mid latitudes
Location — London (geographic coordinates — 51.51 N -0.13 W | time zone UTC+00)

This chart in PNG format — high resolution
API data: JSON or TXT
Other activity indices
Index AP = 7
Index F10.7 = 69