CAPE CANAVERAL, Fla.—A severe solar storm is headed to Earth that could stress power grids even more as the United States deals with major back-to-back hurricanes, space weather forecasters said Wednesday.
The National Oceanic and Atmospheric Administration issued a severe geomagnetic storm watch for Thursday into Friday after an outburst from the sun was detected earlier this week. Such a storm could temporarily disrupt power and radio signals.
