Afternoon (June 21st) water vapor imagery showed a nice circulation rotating through the northern Red River Valley into northwest Minnesota. At the surface, there was also a weak low pressure system over the central Red River Valley by mid afternoon with an inverted trough extending its north. After some morning clouds, enough clearing occurred by afternoon to allow temperatures to rise into the mid to upper 70s with dew points in the mid 60s. As thunderstorm cells formed, many took on a classic hook shape, denoting possible circulations. Most of the stronger rotating cells occurred right along the weak surface boundary, but others did along more subtle boundaries.

Tornado in MARSHALL, MINNESOTA
From 21-JUN-10 14:59:00 to 21-JUN-10 15:05:00 (CST-6)
Location: FLORIAN
Tornado F-scale: EF0
Reported by: NWS Storm Survey

The tornado broke down several poplar trees in shelterbelts west of and adjacent to the Marshall County park and campground on the Tamarac River. Peak winds were estimated at 85 mph.

Tornado in BELTRAMI, MINNESOTA
From 21-JUN-10 17:00:00 to 21-JUN-10 17:01:00 (CST-6)
Location: REDLAKE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two waterspouts were sited over Lower Red Lake just north of the city of Red Lake.

Funnel Cloud in HUBBARD, MINNESOTA
From 21-JUN-10 18:45:00 to 21-JUN-10 18:45:00 (CST-6)
Location: LAKE GEORGE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in POLK, MINNESOTA
From 21-JUN-10 14:55:00 to 21-JUN-10 14:55:00 (CST-6)
Location: CROOKSTON
Magnitude: 0.88 
Reported by: Law Enforcement

Hail in MARSHALL, MINNESOTA
From 21-JUN-10 14:59:00 to 21-JUN-10 14:59:00 (CST-6)
Location: FLORIAN
Magnitude: 0.75 
Reported by: Trained Spotter

Hail in BELTRAMI, MINNESOTA
From 21-JUN-10 18:00:00 to 21-JUN-10 18:00:00 (CST-6)
Location: SHOOKS
Magnitude: 1.00 
Reported by: COOP Observer

The rain was so heavy the observer had to pull off to the side of the road. Only a few large hailstones fell.

Funnel Cloud in POLK, MINNESOTA
From 21-JUN-10 15:49:00 to 21-JUN-10 15:49:00 (CST-6)
Location: MENTOR
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A pair of funnel clouds were spotted.

Funnel Cloud in NORMAN, MINNESOTA
From 21-JUN-10 16:12:00 to 21-JUN-10 16:12:00 (CST-6)
Location: RANUM
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A funnel cloud was spotted in the far northeast portion of Norman County.

Funnel Cloud in POLK, MINNESOTA
From 21-JUN-10 16:12:00 to 21-JUN-10 16:12:00 (CST-6)
Location: MENTOR
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Funnel Cloud in HUBBARD, MINNESOTA
From 21-JUN-10 17:55:00 to 21-JUN-10 17:55:00 (CST-6)
Location: PARK RAPIDS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A funnel cloud was reported to be ascending and descending approximately halfway from the cloud base to the ground.

Tornado in MARSHALL, MINNESOTA
From 21-JUN-10 13:49:00 to 21-JUN-10 14:13:00 (CST-6)
Location: STEPHEN ARPT
Tornado F-scale: EF0
Reported by: Law Enforcement

Intermittent tornado touchdowns occurred along this roughly 10 mile damage path. Some tree branch damage occurred though most of the path occurred over open fields. The tornado was viewed and reported by multiple spotters. Peak winds were estimated at 85 mph.

Tornado in MARSHALL, MINNESOTA
From 21-JUN-10 15:30:00 to 21-JUN-10 15:36:00 (CST-6)
Location: NEWFOLDEN
Tornado F-scale: EF0
Reported by: NWS Storm Survey

Several brief touchdowns occurred along this roughly two mile path. Peak winds were estimated at 75 mph.