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Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Overview

Around 1:00 PM CDT, emergency management reported a brief landspout tornado near Mission, SD. This landspout caused damage to one residence, located just west of Mission, SD. Damage to the residence included shingles missing from the roof, branches and small trees damaged, a swing set and carport tossed around, and a trampoline being lifted into some trees.

Landspout tornadoes are typically weak and short-lived, posing a relatively minor threat of property damage. Landspouts can form with developing thunderstorms before rain, hail, and even thunder is observed. Landspout tornadoes are not usually associated with a wall cloud and are often difficult to detect with weather radar.

For more information on landspouts and the differences between "typical" tornadoes (those formed from supercells), see National Severe Storms Laboratory's page.

Landspout image
Photo from Robert Oliver
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