The following arrived in email:
GEOMAGNETIC STORM: Earlier today, April 7th, Earth passed through a fold in the heliospheric current sheet, plunging our planet into a region of interplanetary space filled with negative polarity magnetic fields.
The result: a G1-class geomagnetic storm is in progress. High-latitude sky watchers should be alert for auroras after nightfall on April 7-8.
Visit Spaceweather.com for more information.
The power went off around here for a couple of hours this afternoon ...