Probably a stupid question, but should I unplug my EV? (UK)

What strength would destroy the sensor?

Nice. And it's somewhat relieving to read this over a Starlink connection.

Up to G-5 possibly. Cell phone visible in dark areas throughout most of CONUS.

It was mentioned that air travel ionizing radiation exposure increases during geomagnetic storms. I'd consider pausing travel for a couple of days to not be a guinea pig because there's not enough data to consider it safe. If anyone absolutely must fly tonight, it'd be interesting if they were to take a high sensitivity dosimeter to see what happens.

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TL;DR: A severe (G4-level) geomagnetic storm hit Earth on January 19, 2026 due to a solar coronal mass ejection. It can disrupt power grids, GPS, satellite systems, and radio communications, while creating visible aurora displays at higher latitudes.

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