The National Weather Service in Grand Forks is investigating a possible tornado touchdown in Roseau County the evening of Wednesday, June 17, but meteorologist Carl Jones said most damaging winds in the area came in another storm, hours before the tornado warning was issued.
"The storms kept training," Jones said. "What that is is when one storm follows the next, which follows the next, kind of like a train. It's just moving over the same area, over and over."
A tornado warning was issued for western Roseau County around 5:30 p.m. and lasted until 6:20 p.m., with another brief warning issued around 7 p.m. Prior to that, winds of about 60 mph caused fallen tree limbs and a blown-away shed near Greenbush, Minn. The warning ended when the storm was over north-central Roseau County. Jones said reports of damage from the tornado-warned storm have not yet been received..
The Herald has heard early reports of some structure damage in the county.
After the tornado-warned storm, which did produce a funnel cloud, storms continued over northwest Minnesota throughout the night, Jones said. In addition to wind damage, Jones said some areas reported significant rainfall. More than 4 inches of overnight rain were reported in Greenbush.
Roseau County wasn't the only area in the region to receive damaging storm impacts, Jones said. In the Golden Lake area, where golf-ball-sized hail fell, Jones said there were reports of flipped pontoon boats, a roof that was torn off and a lake house that was blown off its foundation.
Showers and storms are expected to continue moving eastward Thursday morning across western Minnesota, with local heavy rain and non-severe wind gusts possible. Friday is expected to be mostly sunny, but thunderstorms will return Saturday and are expected to last at least through Monday.