|Active:||February 28 - March 5, 2023|
|Duration of tornado outbreak1:||about 6 days|
|Maximum rated tornado2:||EF5 tornado|
|Injuries:||at least 3,000|
1Time from first tornado to last tornado
It has broken more records than any other event, including longest track tornado, strongest tornado, deadliest tornado, and costliest tornado.
The first and least active day of the outbreak.
A squall line developed in the Pacific Ocean, about 200 miles west of Seattle. Storms rapidly developed along the storm's outflow boundary from offshore all the way to western Montana. This was the beginning of the outbreak.
|EF3 tornado (NWS)|
|Duration||12:17 PM – 12:39 PM|
|Intensity||280 km/h (175 mph) (1-min)|
The strongest tornado in Washington history had origins west of Ruston, before shifting east, destroying 2 homes on the west side of town, and causing a pileup on North Pearl Street. It then continued down pearl street, damaging more homes and a 7-Eleven. The tornado remained thin, but rapidly strengthened as it approached north 30th street, where it turned northeast and crossed the North End Reservoir. Homes on North Shirley Street were left with only interior walls remaining. The tornado rapidly weakened and dissipated at 12:50 PM near the St. Joseph Medical Center. One person was killed in the tornado, and 15 were injured.
March 1stDay two of the outbreak.
As the squall line moved ashore and shifted east, additional storms developed over The Dakotas and parts of Minnesota. The worst tornado of the day struck the town of Velva, North Dakota as a powerful EF5 tornado, killing 15 people.