The combination of heavy rain and anomalously warm temperatures melting a deeper than average snowpack during April resulted in moderate to major flooding stages being reached at sites along the Upper Mississippi River in Wisconsin. Initial minor flood stage was reached in mid April with near record crests near the end of April. The flooding impacts resulted in a state of emergency being issued by the Governor of Wisconsin. Drier conditions during the latter half of April and well below normal rainfall through May allowed the Upper Mississippi River to steadily recede, dropping below minor flood stage at sites in Wisconsin in early May.

Flood in CRAWFORD, WISCONSIN
From 01-MAY-23 00:00:00 to 08-MAY-23 15:00:00 (CST-6)
Location: LYNXVILLE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Significant upstream runoff from the combination of heavy rainfall and rapidly melting snow resulted in the fourth highest crest on record at the Lynxville Dam towards the end of April. Subsequent dry conditions allowed the Mississippi River to slowly recede and drop below minor flood stage at the Lynxville Dam on May 8th.

Flood in TREMPEALEAU, WISCONSIN
From 01-MAY-23 00:00:00 to 07-MAY-23 10:00:00 (CST-6)
Location: TREMPEALEAU
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Significant upstream runoff from the combination of heavy rainfall and rapidly melting snow resulted in the fourth highest crest on record at the Trempealeau Dam towards the end of April. Subsequent dry conditions allowed the Mississippi River to slowly recede and drop below minor flood stage at Trempealeau Dam on May 7th.

Flood in LA CROSSE, WISCONSIN
From 01-MAY-23 00:00:00 to 07-MAY-23 11:00:00 (CST-6)
Location: LA CROSSE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Significant upstream runoff from the combination of heavy rainfall and rapidly melting snow resulted in the third highest crest and major flooding in La Crosse towards the end of April. Reports included structure flooding on abutting French Island, closures of many downtown parks, and water over roadways. Subsequent dry conditions allowed the Mississippi River to slowly recede and drop below minor flood stage at the La Crosse Dam on May 7th.

Flood in VERNON, WISCONSIN
From 01-MAY-23 00:00:00 to 09-MAY-23 12:00:00 (CST-6)
Location: GENOA
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Significant upstream runoff from the combination of heavy rainfall and rapidly melting snow resulted in the fourth highest crest on record at the Genoa Dam towards the end of April. Water rose over Genoa Park downtown and neighboring streets. Subsequent dry conditions allowed the Mississippi River to slowly recede and drop below minor flood stage at Genoa Dam on May 9th.

Flood in BUFFALO, WISCONSIN
From 01-MAY-23 00:00:00 to 07-MAY-23 06:30:00 (CST-6)
Location: FOUNTAIN CITY
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Significant upstream runoff from the combination of heavy rainfall and rapidly melting snow resulted in flooding in Fountain City. Impacts included water rising over Wisconsin Highway 35 in downtown Fountain City, closing Main St towards the end of April. Dry conditions allowed the Mississippi River to slowly recede and drop below minor flood stage at the nearby downstream dam in neighboring Winona, Minnesota on May 7th.

Flood in CRAWFORD, WISCONSIN
From 01-MAY-23 00:00:00 to 15-MAY-23 04:45:00 (CST-6)
Location: CHARME
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Significant upstream runoff from the combination of heavy rainfall and rapidly melting snow resulted in major flooding in the city of Prairie Du Chien. Impacts included road closures from rising water on St. Feriole Island, Highway 18, and County Road K. Many homes were also affected as residents had to be evacuated from rising waters. Dry conditions allowed the Mississippi River to slowly recede and drop below minor flood stage at the dam in McGregor, Iowa on May 15th.