A strong stationary front with a 40 degree temperature gradient setup along the Wisconsin and Illinois border. Numerous strong to severe thunderstorms developed and moved east to northeast across southern Wisconsin. Dozens of hail reports were received with only a couple wind damage reports. Heavy rain lead to flash flooding of small creeks in southern Sauk County.

Thunderstorm Wind in FOND DU LAC, WISCONSIN
From 12-APR-14 15:32:00 to 12-APR-14 15:32:00 (CST-6)
Location: JOHNSBURG
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two electrical wooden poles blown over by downburst winds.

Flash Flood in SAUK, WISCONSIN
From 12-APR-14 23:00:00 to 13-APR-14 01:15:00 (CST-6)
Location: BARABOO
Flood cause: Heavy Rain
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous roads were closed over southern Sauk County due to flash flooding of small creeks and streams. Estimated rainfall amounts ranged from 4-7 inches. Some of the known creeks that flooded were Otter Creek, Honey Creek, North Branch of Honey Creek, and Pine Creek. There was one bridge washout at the north end of Stones Pocket Road due to the flooding of Otter Creek. This will cost approximately $150,000 to replace.

Hail in KENOSHA, WISCONSIN
From 12-APR-14 10:55:00 to 12-APR-14 10:55:00 (CST-6)
Location: DOWNTOWN KENOSHA
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: Public

Hail in SAUK, WISCONSIN
From 12-APR-14 16:18:00 to 12-APR-14 16:18:00 (CST-6)
Location: LAKE DELTON
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: 911 Call Center

Hail in SAUK, WISCONSIN
From 12-APR-14 16:19:00 to 12-APR-14 16:19:00 (CST-6)
Location: LAKE DELTON
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: 911 Call Center

Hail in COLUMBIA, WISCONSIN
From 12-APR-14 16:29:00 to 12-APR-14 16:29:00 (CST-6)
Location: ANACKER
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in COLUMBIA, WISCONSIN
From 12-APR-14 17:07:00 to 12-APR-14 17:07:00 (CST-6)
Location: FRIESLAND
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in COLUMBIA, WISCONSIN
From 12-APR-14 17:08:00 to 12-APR-14 17:08:00 (CST-6)
Location: PARDEEVILLE
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DODGE, WISCONSIN
From 12-APR-14 18:00:00 to 12-APR-14 18:00:00 (CST-6)
Location: BEAVER DAM
Magnitude: 1.50 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DODGE, WISCONSIN
From 12-APR-14 18:00:00 to 12-APR-14 18:00:00 (CST-6)
Location: SOUTH BEAVER DAM
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in DODGE, WISCONSIN
From 13-APR-14 00:34:00 to 13-APR-14 00:34:00 (CST-6)
Location: WATERTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DANE, WISCONSIN
From 13-APR-14 00:13:00 to 13-APR-14 00:13:00 (CST-6)
Location: DOWNTOWN MADISON
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DANE, WISCONSIN
From 13-APR-14 00:02:00 to 13-APR-14 00:02:00 (CST-6)
Location: WINDSOR
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KENOSHA, WISCONSIN
From 13-APR-14 00:16:00 to 13-APR-14 00:16:00 (CST-6)
Location: WHEATLAND
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ROCK, WISCONSIN
From 13-APR-14 01:30:00 to 13-APR-14 01:30:00 (CST-6)
Location: BELOIT
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

One inch diameter hail lasted about 5 minutes.

Thunderstorm Wind in SHEBOYGAN, WISCONSIN
From 12-APR-14 16:03:00 to 12-APR-14 16:03:00 (CST-6)
Location: EDWARDS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Straight line winds blew over a Gazebo and a fence was blown over a house.

Hail in DODGE, WISCONSIN
From 12-APR-14 18:07:00 to 12-APR-14 18:07:00 (CST-6)
Location: BEAVER DAM
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in DODGE, WISCONSIN
From 12-APR-14 18:09:00 to 12-APR-14 18:09:00 (CST-6)
Location: BEAVER DAM
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DANE, WISCONSIN
From 12-APR-14 18:20:00 to 12-APR-14 18:20:00 (CST-6)
Location: PINE BLUFF
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DANE, WISCONSIN
From 12-APR-14 18:20:00 to 12-APR-14 18:20:00 (CST-6)
Location: MIDDLETON
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: COOP Observer

Hail in WASHINGTON, WISCONSIN
From 12-APR-14 18:43:00 to 12-APR-14 18:43:00 (CST-6)
Location: FILLMORE
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MILWAUKEE, WISCONSIN
From 12-APR-14 18:45:00 to 12-APR-14 18:45:00 (CST-6)
Location: WAUWATOSA
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MILWAUKEE, WISCONSIN
From 12-APR-14 18:45:00 to 12-APR-14 18:45:00 (CST-6)
Location: WAUWATOSA
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WAUKESHA, WISCONSIN
From 12-APR-14 19:04:00 to 12-APR-14 19:04:00 (CST-6)
Location: BETHESDA
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WAUKESHA, WISCONSIN
From 12-APR-14 19:07:00 to 12-APR-14 19:07:00 (CST-6)
Location: EAGLE
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in WAUKESHA, WISCONSIN
From 12-APR-14 19:13:00 to 12-APR-14 19:13:00 (CST-6)
Location: EAGLE
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in MILWAUKEE, WISCONSIN
From 12-APR-14 19:23:00 to 12-APR-14 19:23:00 (CST-6)
Location: STATE FAIR PARK
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DANE, WISCONSIN
From 12-APR-14 18:20:00 to 12-APR-14 18:20:00 (CST-6)
Location: MIDDLETON
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WASHINGTON, WISCONSIN
From 12-APR-14 20:38:00 to 12-APR-14 20:38:00 (CST-6)
Location: WEST BEND
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail covering the ground.

Hail in WASHINGTON, WISCONSIN
From 12-APR-14 20:44:00 to 12-APR-14 20:44:00 (CST-6)
Location: WEST BEND
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail covering the ground.

Hail in SAUK, WISCONSIN
From 12-APR-14 20:50:00 to 12-APR-14 20:50:00 (CST-6)
Location: PRAIRIE DU SAC
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WASHINGTON, WISCONSIN
From 12-APR-14 21:02:00 to 12-APR-14 21:02:00 (CST-6)
Location: ST LAWRENCE
Magnitude: 1.50 
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in SHEBOYGAN, WISCONSIN
From 12-APR-14 21:03:00 to 12-APR-14 21:03:00 (CST-6)
Location: ERDMAN
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SAUK, WISCONSIN
From 12-APR-14 21:00:00 to 12-APR-14 21:00:00 (CST-6)
Location: SAUK CITY
Magnitude: 1.50 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SAUK, WISCONSIN
From 12-APR-14 16:02:00 to 12-APR-14 16:02:00 (CST-6)
Location: REEDSBURG
Magnitude: 1.50 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SAUK, WISCONSIN
From 12-APR-14 16:10:00 to 12-APR-14 16:10:00 (CST-6)
Location: REEDSBURG MUNI ARPT
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: 911 Call Center

Hail in SHEBOYGAN, WISCONSIN
From 12-APR-14 20:56:00 to 12-APR-14 20:56:00 (CST-6)
Location: ERDMAN
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DANE, WISCONSIN
From 12-APR-14 23:05:00 to 12-APR-14 23:05:00 (CST-6)
Location: SUN PRAIRIE
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DANE, WISCONSIN
From 12-APR-14 23:00:00 to 12-APR-14 23:00:00 (CST-6)
Location: TOKEN CREEK
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ROCK, WISCONSIN
From 13-APR-14 01:08:00 to 13-APR-14 01:08:00 (CST-6)
Location: DOWNTOWN JANESVILLE
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DODGE, WISCONSIN
From 12-APR-14 21:03:00 to 12-APR-14 21:03:00 (CST-6)
Location: RUBICON
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter