Mercer storm history

Upwards of nine inches of rain in parts of western Mercer County led to very significant overland flooding. There was also flooding along the Knife River, Spring Creek, and their tributaries. Water was added to the Knife River system not only from rain in Mercer County but rain i…

Mercer County had estimated wind gusts to 60 mph.

Hazen AWOS reported sustained winds of 40 mph.

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

A roof was torn off a mobile home.

A tree uprooted at Lake Shore Estates/Dakota Waters Bay, and many tree branches were blown down at Lake Shore Estates.

Homes were damaged with shingles and siding blown off.

Mercer County had estimated wind gusts to 60 mph.

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.

Hazen AWOS reported wind gusts to 60 mph.

Tree damage occurred in the city of Hazen.

Thunderstorm wind gusts were estimated by the public.

Golden Valley received eight inches of snow.

Wind chill values dropped to around 70 below.

Hazen received 13 inches of snow.

Golden Valley NDDOT site reported wind gusts to 62 mph.

Wind gusts were estimated by a trained spotter.

Thunderstorm wind gusts were estimated by a trained spotter.

In the Beulah Bay area, two homes had parts of their roofs torn off, large trees were uprooted, manufactured homes were damaged, and multiple campers and boats on trailers were flipped. At Hazen Bay, campers were flipped and trees uprooted. Significant crop damage was also observ…

Thunderstorm wind gusts were estimated by a trained spotter.

Multiple hopper-style grain bins were blown over, with another bin damage. A wooden structure was also damaged.

NWS had no reports of damage.