NWS confirms weak tornado touched down in Thurston County

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GRAND MOUND, Wash. — A brief, weak tornado touched down Friday afternoon in Thurston County.

The National Weather Service said video sent to them by residents showed the cloud touchdown in a field southeast of Grand Mound, south of the Tenino Grand Mound Road.

It happened at about 2 p.m.

There were no reports of injuries or damage as a result of the tornado, so The National Weather Service did not send out a survey crew.

The tornado was ranked as an “EF-U” by The National Weather Service.

An EF-U rating means that a tornado was given a rating of unknown strength. That’s because tornados are rated based on the damage they cause, but in this case, there was no damage reported.

This tornado had a width of less than 50-feet, a path length of less than 100-feet, and it touched down for less than a minute with an unknown peak wind, according to The National Weather Service.

The National Weather Service said their radars at the time indicated a weak rotation on the storm.

“This is not uncommon, and the vast majority of weakly rotating storms do not produce a tornado,” said The National Weather Service in a release Friday.

No warning ever went into effect for this tornado because there was never any conclusive evidence from the radar that a tornado was occurring, and videos from residents didn’t come into The National Weather Service until well after the event was over.

The National Weather Service urges people who witness a weather event to send footage to them.

by KING staff (2019, Oct 4)

the author

Kyrie Wagner