As of Monday, 3/29 at 1:30 pm
Avista: 1,200 customers
Kootenai Electric Cooperative: 220 customers
Strong winds blew dust through eastern Washington Sunday, causing the closure of Interstate 90 between Ritzville and Moses Lake from Sunday afternoon until about 9:30 pm.
More than 17,000 people had lost power around the region by Sunday night.