On the evening of June 20th, a slow moving upper level low pressure system was located over southern Saskatchewan. Strong upper level winds combined with a cold pool aloft to help generate scattered thunderstorms across the northwest quarter of Minnesota. Reports of large hail and funnel clouds were received.

Funnel Cloud in OTTER TAIL, MINNESOTA
From 20-JUN-14 15:10:00 to 20-JUN-14 15:11:00 (CST-6)
Location: ROTHSAY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A persistent wall cloud with large funnel was observed.

Hail in OTTER TAIL, MINNESOTA
From 20-JUN-14 15:15:00 to 20-JUN-14 15:17:00 (CST-6)
Location: PELICAN RAPIDS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Funnel Cloud in OTTER TAIL, MINNESOTA
From 20-JUN-14 15:21:00 to 20-JUN-14 15:22:00 (CST-6)
Location: PELICAN RAPIDS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Funnel evident with rotation increasing.

Funnel Cloud in OTTER TAIL, MINNESOTA
From 20-JUN-14 15:30:00 to 20-JUN-14 15:31:00 (CST-6)
Location: ERHARD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel with rapid rotation evident over Erhard as viewed from west of town.

Hail in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:06:00 to 20-JUN-14 16:09:00 (CST-6)
Location: OTTERTAIL
Magnitude: 2.00 
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Public

A few minutes of very large hail was reported along the northeast edge of Otter Tail Lake.

Hail in WADENA, MINNESOTA
From 20-JUN-14 17:00:00 to 20-JUN-14 17:02:00 (CST-6)
Location: WADENA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Tornado in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:10:00 to 20-JUN-14 16:11:00 (CST-6)
Location: OTTERTAIL
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A persistent funnel with an intermittent waterspout was seen over northeast Otter Tail Lake. The waterspout was evident for about a minute.

Hail in WILKIN, MINNESOTA
From 20-JUN-14 14:55:00 to 20-JUN-14 14:57:00 (CST-6)
Location: LAWNDALE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Dime to quarter sized hail fell in very heavy rain.

Funnel Cloud in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:05:00 to 20-JUN-14 16:05:00 (CST-6)
Location: OTTER TAIL LAKE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A persistent wall cloud and funnel were observed over Walker Lake, about four miles west of the town of Ottertail.

Funnel Cloud in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:26:00 to 20-JUN-14 16:26:00 (CST-6)
Location: BALMORAL
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The rotation was viewed from about one mile north of Henning. The funnel was thought to be near county road 132, moving east.

Funnel Cloud in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:50:00 to 20-JUN-14 16:50:00 (CST-6)
Location: LYMAN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A weak funnel cloud was visible near the intersection of highways 210 and 29.

Hail in ROSEAU, MINNESOTA
From 20-JUN-14 15:50:00 to 20-JUN-14 15:50:00 (CST-6)
Location: FOX
Magnitude: 1.00 
Reported by: Trained Spotter

Dime to quarter size hail fell.

Hail in OTTER TAIL, MINNESOTA
From 20-JUN-14 15:54:00 to 20-JUN-14 15:54:00 (CST-6)
Location: SPIRIT LAKE
Magnitude: 0.88 
Reported by: Law Enforcement

Dime to nickel sized hail fell at the intersection of county roads 108 and 41.

Hail in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:00:00 to 20-JUN-14 16:00:00 (CST-6)
Location: DENT
Magnitude: 0.88 
Reported by: Trained Spotter

The hail was accompanied by very heavy rain. The hail was reported to be an inch or more deep across yards.

Hail in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:15:00 to 20-JUN-14 16:15:00 (CST-6)
Location: OTTERTAIL
Magnitude: 1.00 
Reported by: Trained Spotter

Lots of dime to quarter size hail fell.

Hail in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:18:00 to 20-JUN-14 16:20:00 (CST-6)
Location: OTTERTAIL
Magnitude: 1.50 
Reported by: Trained Spotter

The large hail fell for a couple of minutes along with torrential rain.

Hail in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:30:00 to 20-JUN-14 16:30:00 (CST-6)
Location: DEER CREEK
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:43:00 to 20-JUN-14 16:43:00 (CST-6)
Location: DEER CREEK
Magnitude: 1.00 
Reported by: Law Enforcement

Thunderstorm Wind in OTTER TAIL, MINNESOTA
From 20-JUN-14 16:30:00 to 20-JUN-14 16:30:00 (CST-6)
Location: DEER CREEK
Magnitude: 55.00 MG
Reported by: Trained Spotter

The wind gust was measured by a mobile weather station.