An excessive rainfall event, with amounts of 3 to 6 inches, occurred across parts of central and northeast Wisconsin starting on the evening of September 22 and lasting through the morning hours of September 23.  The initial band of heavy rain formed along a warm front that extended across north-central Wisconsin.  Additional rains were a result of a cold front that moved across the state on September 23.
The heaviest rain fell over the central part of the state where many locations received more than 5 inches.  This led to flash flooding, as well as areal and moderate to major river flooding across parts of central Wisconsin.
A new record stage was established on the Yellow River at Babcock in Wood County.

Flash Flood in WAUPACA, WISCONSIN
From 23-SEP-10 05:00:00 to 23-SEP-10 09:00:00 (CST-6)
Location: CLINTONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy rain fell across northeast Waupaca County causing rivers and streams to overflow their banks in some locations, washing out culverts and flooding County Highway C near Clintonville.  Storm total rainfall in northern Waupaca County was generally in excess of 3 inches.  The highest recorded total was 4.73 inches at Clintonville.

Flash Flood in BROWN, WISCONSIN
From 23-SEP-10 06:00:00 to 23-SEP-10 09:00:00 (CST-6)
Location: PULASKI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain fell over extreme northwest Brown County, causing flash flooding in Pulaski where a storm total of 3.97 inches of rain fell.  Some roads in the area flooded, including State Highway 32, and a small creek that is normally about 1 foot deep was flowing at a depth of 8 or 9 feet.

Flash Flood in LINCOLN, WISCONSIN
From 23-SEP-10 14:10:00 to 23-SEP-10 18:00:00 (CST-6)
Location: SPIRIT FALLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Heavy rain fell across Lincoln County, causing rivers and streams to overflow their banks, resulting in the closure of 21 roads, mainly in the southern part of the county.  A number of other roads were passable but had water near or over the roadway.  Many basements had water in them and Merrill Area Public Schools were closed due to flooding and high water.  Rainfall totals across the county were generally at least 2.50 inches.  The highest recorded total was 4.38 inches at Spirit Falls.  At least 30 roads across the county were closed or were covered by deep water.

Flood in MARATHON, WISCONSIN
From 23-SEP-10 15:00:00 to 25-SEP-10 23:55:00 (CST-6)
Location: KELLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Flooding continued across parts of Marathon County after the rainfall came to an end.  Moderate flooding occurred on the Wisconsin River, Big Eau Plaine River and Big Rib River but the rivers fell below flood stage by late evening on the 25th.

Flood in WOOD, WISCONSIN
From 23-SEP-10 15:00:00 to 26-SEP-10 07:10:00 (CST-6)
Location: BABCOCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Flooding continued across Wood County long after heavy rainfall came to an end.  Record flooding occurred on the Yellow River at Babcock, there was major flooding on the Yellow River at Pittsville and moderate flooding on the Wisconsin River at Wisconsin Rapids.  The rivers all fell below flood stage by midday on the 26th.

Flood in LINCOLN, WISCONSIN
From 23-SEP-10 18:00:00 to 26-SEP-10 07:13:00 (CST-6)
Location: MERRILL MUNI ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Flooding continued across parts of southern Lincoln County long after the rainfall came to an end.  Minor flooding continued on the Wisconsin River at Merrill into the early morning hours of the 26th.

Flood in WAUPACA, WISCONSIN
From 23-SEP-10 09:00:00 to 26-SEP-10 10:00:00 (CST-6)
Location: CLINTONVILLE ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Flooding continued in Waupaca County long after the rainfall came to an end.  Moderate flooding occurred on the Little Wolf River around Royalton before it fell below flood stage on the morning of the 26th.

Flood in SHAWANO, WISCONSIN
From 23-SEP-10 13:00:00 to 26-SEP-10 10:00:00 (CST-6)
Location: MATTOON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Areas of flooding developed across Shawano County due to the heavy rainfall.  Minor flooding occurred on the Embarrass River near Embarrass but the river fell below flood stage by early in the morning of the 26th.

Flood in PORTAGE, WISCONSIN
From 23-SEP-10 15:00:00 to 25-SEP-10 04:00:00 (CST-6)
Location: JUNCTION CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

Flooding from heavy rainfall continued in Portage County and there was also some flooding along the Wisconsin River that ended by early on the 25th.

Flash Flood in WOOD, WISCONSIN
From 23-SEP-10 05:40:00 to 23-SEP-10 15:00:00 (CST-6)
Location: KELLNER
Flood cause: Heavy Rain
Property damage: 1.50M
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain fell across Wood County, causing rivers and streams to overflow their banks, washing out roads and damaging homes and businesses.  Much of the county received at least 4 inches of rain.  The heaviest recorded total was 5.95 inches at Pittsville.  Sandbagging was necessary along the Yellow River in southwest Wood County.  The flooding caused minor damage to 79 homes and 10 businesses, major damage to 1 home and substantial damage to public infrastructure.  As many as 35 roads across the county were closed at some point due to the flooding.

Flash Flood in PORTAGE, WISCONSIN
From 23-SEP-10 09:03:00 to 23-SEP-10 15:00:00 (CST-6)
Location: JUNCTION CITY
Flood cause: Heavy Rain
Property damage: 700.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain fell across Portage County, causing rivers and streams to overflow their banks, washing out roads and damaging homes and businesses.  Much of the county had in excess of 4 inches of rain.  The highest recorded total was 5.65 inches at Stevens Point.  County crews sandbagged several roads in the northwest part of the county.  The flooding caused minor damage to 36 homes and 2 businesses and major damage to 1 home.

Flash Flood in MARATHON, WISCONSIN
From 23-SEP-10 03:54:00 to 23-SEP-10 15:00:00 (CST-6)
Location: ABBOTSFORD
Flood cause: Heavy Rain
Property damage: 400.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain fell across Marathon County, causing rivers and streams to overflow their banks, washing out roads and damaging homes and businesses.  Rainfall totals across the county were mostly in excess of 3.50 inches.  The highest recorded total was 5.17 inches at Spencer.  Twenty-seven residents were evacuated from 9 homes, mainly along River Road, in Marathon City due to flooding on the Big Rib River and basements of all homes along River Road were flooded.  The flooding caused minor damage to 4 homes, major damage to 1 and destroyed 3 others.  One business sustained minor damage.  A school bus became stranded in high water in the northern part of the county and its occupants were evacuated.