A low pressure system moved northward from the Central Plains to the Northern Plains on May 12th and lifted a warm front across the Northland bringing two rounds of storms to the region. The first round during the afternoon hours were prolific hail producing storms with the largest hail stones being ping pong ball sized. Another round of storms arrived during the early evening hours and contained strong winds that moved through the Brainerd Lakes area. A maximum gust of 61 mph was recorded at the Brainerd Airport leading to widespread tree damage in the area. As storms continued overnight, heavy rainfall along the North Shore led to Flash Flooding in Lake and Cook counties with numerous road washouts reported.

Hail in CASS, MINNESOTA
From 12-MAY-22 14:30:00 to 12-MAY-22 14:32:00 (CST-6)
Location: PINE RIVER MUNI ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ITASCA, MINNESOTA
From 12-MAY-22 15:10:00 to 12-MAY-22 15:12:00 (CST-6)
Location: DEER RIVER ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in AITKIN, MINNESOTA
From 12-MAY-22 14:45:00 to 12-MAY-22 14:47:00 (CST-6)
Location: SHESHEBEE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CROW WING, MINNESOTA
From 12-MAY-22 19:39:00 to 12-MAY-22 19:42:00 (CST-6)
Location: MANHATTAN BEACH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

A tree was downed onto a power line and then started on fire.

Thunderstorm Wind in CROW WING, MINNESOTA
From 12-MAY-22 18:06:00 to 12-MAY-22 18:11:00 (CST-6)
Location: BAXTER
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Eight trees were downed between the reporter's location and the home next door on Red Sand Lake. The trees fell during a 5 minute period at the onset of the storm.

Thunderstorm Wind in ST. LOUIS, MINNESOTA
From 12-MAY-22 20:45:00 to 12-MAY-22 20:48:00 (CST-6)
Location: HIBBING
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree was down on the road at the spotter's location.

Hail in AITKIN, MINNESOTA
From 12-MAY-22 14:45:00 to 12-MAY-22 14:48:00 (CST-6)
Location: BENNETTVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flood in COOK, MINNESOTA
From 12-MAY-22 23:00:00 to 13-MAY-22 12:00:00 (CST-6)
Location: LUTSEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rainfall led to the Poplar River becoming swollen and raging. Trees and other debris significantly damaged two covered bridges near the mouth of the river at the Lutsen Resort. The older of the two bridges was built in 1930 with the other dating from the 1950s. The resort owners have vowed to rebuild the bridges. Additionally, hundreds of trees were wiped out by the water as well.

Hail in ITASCA, MINNESOTA
From 12-MAY-22 15:54:00 to 12-MAY-22 15:57:00 (CST-6)
Location: BLACKBERRY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ST. LOUIS, MINNESOTA
From 12-MAY-22 15:55:00 to 12-MAY-22 15:57:00 (CST-6)
Location: FLOODWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ST. LOUIS, MINNESOTA
From 12-MAY-22 16:15:00 to 12-MAY-22 16:17:00 (CST-6)
Location: FLOODWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CASS, MINNESOTA
From 12-MAY-22 14:37:00 to 12-MAY-22 14:39:00 (CST-6)
Location: CHICKAMAW BEACH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ITASCA, MINNESOTA
From 12-MAY-22 15:05:00 to 12-MAY-22 15:08:00 (CST-6)
Location: DEER RIVER ARPT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ITASCA, MINNESOTA
From 12-MAY-22 15:15:00 to 12-MAY-22 15:17:00 (CST-6)
Location: ZEMPLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CASS, MINNESOTA
From 12-MAY-22 13:52:00 to 12-MAY-22 13:55:00 (CST-6)
Location: PILLAGER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CROW WING, MINNESOTA
From 12-MAY-22 19:15:00 to 12-MAY-22 19:18:00 (CST-6)
Location: BRAINERD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A photo was received showing a tree that fell across a road nearly landing on a parked car.

Flash Flood in LAKE, MINNESOTA
From 13-MAY-22 04:00:00 to 13-MAY-22 08:00:00 (CST-6)
Location: FINLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A washout was reported along Breezy Lane in Finland.

Flash Flood in LAKE, MINNESOTA
From 13-MAY-22 04:00:00 to 13-MAY-22 09:00:00 (CST-6)
Location: FINLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple washouts were reported along Cramer Road near and east of Finland.

Thunderstorm Wind in CROW WING, MINNESOTA
From 12-MAY-22 19:14:00 to 12-MAY-22 19:14:00 (CST-6)
Location: (BRD)WEILAND FLD BRA
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A gust of 59 mph was recorded by the ASOS at the Brainerd Airport.

Hail in AITKIN, MINNESOTA
From 12-MAY-22 15:50:00 to 12-MAY-22 15:53:00 (CST-6)
Location: HILL CITY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ITASCA, MINNESOTA
From 12-MAY-22 15:37:00 to 12-MAY-22 15:39:00 (CST-6)
Location: GRAND RPDS SUGAR ARP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in AITKIN, MINNESOTA
From 12-MAY-22 14:37:00 to 12-MAY-22 14:39:00 (CST-6)
Location: MINNEWAWA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ST. LOUIS, MINNESOTA
From 12-MAY-22 19:05:00 to 12-MAY-22 19:10:00 (CST-6)
Location: FLORENTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CASS, MINNESOTA
From 12-MAY-22 13:24:00 to 12-MAY-22 13:26:00 (CST-6)
Location: PILLAGER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CASS, MINNESOTA
From 12-MAY-22 13:38:00 to 12-MAY-22 13:40:00 (CST-6)
Location: PILLAGER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CASS, MINNESOTA
From 12-MAY-22 13:45:00 to 12-MAY-22 13:47:00 (CST-6)
Location: LAKE SHR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in COOK, MINNESOTA
From 13-MAY-22 05:30:00 to 13-MAY-22 12:30:00 (CST-6)
Location: HOVLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A photo was received showing Moose Valley Road flooded at Carlson Creek with water flowing over the road surface. A later report indicated the Cook County Highway Department closed the road at 6:30 AM CDT.

Thunderstorm Wind in CROW WING, MINNESOTA
From 12-MAY-22 19:14:00 to 12-MAY-22 19:14:00 (CST-6)
Location: (BRD)WEILAND FLD BRA
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A gust of 61 mph was measured at the Brainerd Airport.

Flash Flood in ST. LOUIS, MINNESOTA
From 12-MAY-22 20:00:00 to 13-MAY-22 06:00:00 (CST-6)
Location: FLOODWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A local TV meteorologist forwarded photos from a viewer showing a culvert that had washed out on Hill Road near Floodwood. There was a roughly 6 foot gap in the road that was at least 3 to 4 feet deep where the flow of the creek exceeded the capacity of the culvert and washed out the road. The viewers that sent the photos were unable to leave their property by vehicle and had to make a makeshift footbridge to get to town.

Hail in PINE, MINNESOTA
From 12-MAY-22 12:02:00 to 12-MAY-22 12:04:00 (CST-6)
Location: ROCK CREEK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ITASCA, MINNESOTA
From 12-MAY-22 20:15:00 to 12-MAY-22 20:18:00 (CST-6)
Location: GOODLAND
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CASS, MINNESOTA
From 12-MAY-22 14:40:00 to 12-MAY-22 14:42:00 (CST-6)
Location: PINE RIVER
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ITASCA, MINNESOTA
From 12-MAY-22 15:50:00 to 12-MAY-22 16:00:00 (CST-6)
Location: LA PRAIRIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail in PINE, MINNESOTA
From 12-MAY-22 12:06:00 to 12-MAY-22 12:08:00 (CST-6)
Location: ROCK CREEK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PINE, MINNESOTA
From 12-MAY-22 12:26:00 to 12-MAY-22 12:28:00 (CST-6)
Location: PINE CITY MUNI ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CROW WING, MINNESOTA
From 12-MAY-22 13:33:00 to 12-MAY-22 13:36:00 (CST-6)
Location: PEQUOT LAKES ARPT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CASS, MINNESOTA
From 12-MAY-22 13:18:00 to 12-MAY-22 13:20:00 (CST-6)
Location: PILLAGER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CASS, MINNESOTA
From 12-MAY-22 19:25:00 to 12-MAY-22 19:28:00 (CST-6)
Location: PINE RIVER
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple trees greater than 12 inches in diameter were downed along Hessman Hill Road.

Hail in AITKIN, MINNESOTA
From 12-MAY-22 13:31:00 to 12-MAY-22 13:34:00 (CST-6)
Location: HASSMAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CROW WING, MINNESOTA
From 12-MAY-22 14:17:00 to 12-MAY-22 14:21:00 (CST-6)
Location: MERRIFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CROW WING, MINNESOTA
From 12-MAY-22 14:27:00 to 12-MAY-22 14:30:00 (CST-6)
Location: JENKINS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ST. LOUIS, MINNESOTA
From 12-MAY-22 15:22:00 to 12-MAY-22 15:24:00 (CST-6)
Location: FLOODWOOD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in AITKIN, MINNESOTA
From 12-MAY-22 14:40:00 to 12-MAY-22 14:43:00 (CST-6)
Location: LIBBY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CROW WING, MINNESOTA
From 12-MAY-22 19:12:00 to 12-MAY-22 19:16:00 (CST-6)
Location: BRAINERD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several trees were downed by the winds near the North Memorial Ambulance Station in downtown Brainerd.