A co-worker is…let me say “enthusiastic” about weather and she sends out a weekend weather report every Friday. Today’s held this snippet of info:

In other news, a strong geomagnetic storm is expected to hit planet Earth today, “with the potential to affect electrical grids and satellite communications,” Associated Press reports. “One of the largest sunspot clusters in years developed over the past three days and produced a coronal mass ejection, similar to a solar flare, at 3 a.m. EDT Wednesday, forecasters at the National Oceanic and Atmospheric Administration said. The disturbance was expected to produce a geomagnetic storm rated G3. A G5 storm is the strongest.”

“In area, [the sunspot cluster] is 10 times larger than the surface of the Earth,” BBC notes.