Dunn storm history

A slow moving supercell resulted in an extended period of very large hail and damaging wind gusts in and around the city of Killdeer. Hail up to 3.25 inches in diameter completely covered the ground in many locations. The hail combined with wind gusts of 75 mph to cause extreme d…

There was very significant damage to buildings and automobiles including at a car dealership.

Upwards of 10.50 inches of rain in parts of Dunn County led to very significant overland flooding. There was also flooding along the Knife River and its tributaries. There was significant damage to roads and crops. A county emergency declaration was issued.

Strong winds and snow combined to produce a blizzard.

Kildeer AWOS reported wind gusts to 63 mph.

Killdeer AWOS reported wind gusts to 59 mph.

Dunn County had estimated gusts to 60 mph.

A garage was destroyed by the thunderstorm winds.

Minimum wind chill values dropped to between 45 below to around 60 below over most locations.

Wind chill values dropped as low as 60 below.

Kildeer AWOS reported wind gusts to 58 mph.

The tornado touched down in an open field south of Manning and impacted no structures. There was no damage to evaluate. By National Weather Service policy the tornado is rated EF-U (Unknown).

Killdeer received seven inches of snow.

Halliday received eight inches of snow.

Wind chill values dropped to around 70 below.

Dunn Center received eight inches of snow.

Manning NDAWN site reported wind gusts to 61 mph.

A window on a truck was broken out and a snowmobile trailer was blown down into a coulee.

Thunderstorm wind gusts were estimated by the public.