A large west to east line of thunderstorms moving east to southeast late on August 27th into the early morning hours of August 28th brought more flash flooding and river flooding to Sauk, Columbia, Marquette, Green Lake, Fond du Lac, Dodge, and Jefferson Counties.  This occurred along a stationary front within a very moist airmass. This rain event was the beginning of significant flooding on the Baraboo and Fox Rivers that continued into September. Flooding also began on the Rock and Crawfish Rivers due to repeated rounds of heavy rain during the last couple weeks of August. This also continued into September.

Flood in FOND DU LAC, WISCONSIN
From 28-AUG-18 15:00:00 to 31-AUG-18 20:00:00 (CST-6)
Location: WAUPUN
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The South Branch of the Rock River reached minor flood stage, cresting at 7.43 feet during the early afternoon on August 29th in Waupun. Water reached the support beam underneath the Fond du Lac St. bridge and it was closed. County Park Rd. was closed at the bridge as the Rock River flowed around the north end of the bridge, reconnecting with the river.  Water was flowing around the north end of the city of Waupun Dam, reconnecting with the river. Gateway Dr. near the river was flooded and closed. Various parks along the river were flooded.

Flood in SAUK, WISCONSIN
From 28-AUG-18 04:45:00 to 28-AUG-18 10:45:00 (CST-6)
Location: LA VALLE
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 5.00K
Reported by: Law Enforcement

Flooding of creeks and lowland continued north of La Valle. This included highway 33 which was washed out due to the flooding of Crossman Creek just south of Stout Rd. Highway F was closed due to bridge damage at an inlet to Lake Redstone. A portion of Highway H near highway 13 was closed due to a road and culvert wash out.

Flash Flood in SAUK, WISCONSIN
From 28-AUG-18 03:25:00 to 28-AUG-18 04:45:00 (CST-6)
Location: LA VALLE
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Portions of several roads north of La Valle are flooded and washed out after 3 to 6 inches of rain. This includes highway 33 which was washed out due to the flash flooding of Crossman Creek just south of Stout Rd. Highway F was closed due to bridge damage at an inlet to Lake Redstone. A portion of Highway H near highway 13 was closed due to a road and culvert wash out.

Thunderstorm Wind in SAUK, WISCONSIN
From 27-AUG-18 22:35:00 to 27-AUG-18 22:35:00 (CST-6)
Location: WEST BARABOO
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and branches down.

Flash Flood in FOND DU LAC, WISCONSIN
From 28-AUG-18 00:22:00 to 28-AUG-18 05:00:00 (CST-6)
Location: NORTH FOND DU LAC
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding of streets in sections of Fond du Lac after 2 to 3 inches of rain. Some roads with a depth of 3 feet of water. Intersections of National Ave. and Division St. and National Ave. and Scott St. were closed due to the flood waters.

Flood in JEFFERSON, WISCONSIN
From 31-AUG-18 17:00:00 to 31-AUG-18 23:59:00 (CST-6)
Location: HUBBLETON
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Crawfish River reached minor flood stage and continued to rise into early September. There was widespread flooding of lowland and agricultural land, and the flooding of roads in Riverbend Campground about 5 miles upstream of Milford.