Scattered thunderstorms developed along an instability ribbon from central to northeast Wisconsin during the afternoon hours on Thursday (5/12).  The strongest storms produced large hail across this area.  Further north, an outflow boundary caused wind damage across portions of north-central Wisconsin. Repeated rounds of moderate to heavy rain dumped upwards of 7 inches of rain across central Oconto County and southern Marinette County during the late afternoon and evening hours, causing $465,500 worth of damage to area roads and bridges across these counties.

Hail in MARATHON, WISCONSIN
From 12-MAY-22 13:10:00 to 12-MAY-22 13:11:00 (CST-6)
Location: MOSINEE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail fell in Mosinee.

Hail in MARATHON, WISCONSIN
From 12-MAY-22 13:35:00 to 12-MAY-22 13:36:00 (CST-6)
Location: HATLEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell in Hatley.

Hail in LANGLADE, WISCONSIN
From 12-MAY-22 13:45:00 to 12-MAY-22 13:46:00 (CST-6)
Location: WHITE LAKE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel size hail fell in White Lake.

Hail in OCONTO, WISCONSIN
From 12-MAY-22 14:00:00 to 12-MAY-22 14:00:00 (CST-6)
Location: MOUNTAIN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Ping pong size hail fell in Mountain.

Hail in SHAWANO, WISCONSIN
From 12-MAY-22 14:00:00 to 12-MAY-22 14:01:00 (CST-6)
Location: BIRNAMWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell in Birnamwood.

Hail in OCONTO, WISCONSIN
From 12-MAY-22 14:15:00 to 12-MAY-22 14:16:00 (CST-6)
Location: MOUNTAIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Penny size hail fell in Crooked Lake.

Hail in MENOMINEE (C), WISCONSIN
From 12-MAY-22 14:25:00 to 12-MAY-22 14:26:00 (CST-6)
Location: NEOPIT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Golf ball size hail fell south of Neopit.

Hail in VILAS, WISCONSIN
From 12-MAY-22 15:10:00 to 12-MAY-22 15:11:00 (CST-6)
Location: EAGLE RIVER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Quarter size hail fell in Eagle River.

Hail in OCONTO, WISCONSIN
From 12-MAY-22 16:25:00 to 12-MAY-22 16:26:00 (CST-6)
Location: SURING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell east of Suring.

Hail in OCONTO, WISCONSIN
From 12-MAY-22 17:50:00 to 12-MAY-22 17:51:00 (CST-6)
Location: SPRUCE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell in Spruce.

Thunderstorm Wind in VILAS, WISCONSIN
From 12-MAY-22 14:37:00 to 12-MAY-22 14:38:00 (CST-6)
Location: ST GERMAIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds downed trees and power lines down in St Germain. The time of this event is an estimate based on the Emergency Manager.

Thunderstorm Wind in VILAS, WISCONSIN
From 12-MAY-22 15:10:00 to 12-MAY-22 15:11:00 (CST-6)
Location: EAGLE RIVER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds downed trees east of Eagle River. The time of this event is an estimate based on the Emergency Manager.

Thunderstorm Wind in VILAS, WISCONSIN
From 12-MAY-22 15:15:00 to 12-MAY-22 15:16:00 (CST-6)
Location: CONOVER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds downed trees in Conover. The time of this event is an estimate based on the Emergency Manager.

Flash Flood in OCONTO, WISCONSIN
From 12-MAY-22 16:00:00 to 12-MAY-22 21:30:00 (CST-6)
Location: KLONDIKE
Flood cause: Heavy Rain
Property damage: 335.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several rounds of thunderstorms dumped upwards of 7 inches of rain over central Oconto County during the late afternoon and evening hours. This caused damage to area roads, bridges, culverts, and parks across the central part of the county as well as several area roads to be washed out.  The hardest hit areas were in or near the city of Spruce and north of Gillett.

Flash Flood in MARINETTE, WISCONSIN
From 12-MAY-22 18:30:00 to 12-MAY-22 21:30:00 (CST-6)
Location: POUND
Flood cause: Heavy Rain
Property damage: 130.50K
Crop damage: 0.00K
Reported by: Emergency Manager

Several rounds of thunderstorms dumped upwards of 7 inches of rain over southern Marinette County during the evening hours. This caused damage to area roads, bridges, culverts, and parks across the southern part of the county. The hardest hit areas were the town of Beaver, Pound, Grover, Peshtigo, and the villages of Coleman and Pound.