Updraft® - Minnesota Weather News

Flood warnings in southern Minnesota: Heaviest rains south of the Twin Cities into Saturday

Several inches of rain falling again across southern Minnesota

Rainfall totals
Rainfall totals through 7 a.m. Friday
Twin Cities National Weather Service office

Our latest deluge is focused on southern Minnesota through Saturday morning. Between 2 and 5 inches of rain fell across southwestern and south-central Minnesota through Friday morning. (See the map above.)

The torrential rainfall is causing flooding from southwestern Minnesota through Mankato to the Rochester area.

A flash flood warning is in effect for Rochester and surrounding areas until 5: 30 p.m. Friday. Another 1 to 3 inches of rain may fall across southeastern Minnesota.

BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service La Crosse WI

222 PM CDT Fri Jun 21 2024 The National Weather Service in La Crosse has issued a

* Flash Flood Warning for... Southern Dodge County in southeastern Minnesota... Northwestern Mower County in southeastern Minnesota... Western Olmsted County in southeastern Minnesota...

* Until 530 PM CDT.

* At 222 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Rochester, Dodge Center, Mantorville, Kasson, Byron, Hayfield, Oronoco, Douglas, Rock Dell, Oslo, Waltham, Chester, Salem Corners, Oxbow Park, Danesville, Genoa, and Rochester Airport.

The latest forecast model trends Friday afternoon focus the heaviest rainfall across southeast Minnesota south of the Twin Cities.

Below is the National Oceanic and Atmospheric Administration’s High-Resolution Rapid Refresh model run from 7 p.m. Friday through 7 a.m. Saturday.

NOAA HRRR model between 7 p.m. Friday and 7 a.m. Saturday
High-Resolution Rapid Refresh model between 7 p.m. Friday and 7 a.m. Saturday
NOAA, via Tropical Tidbits

Multi-inch rainfall totals favor southeastern Minnesota and northern Iowa through Saturday morning.

Rainfall forecast
Rainfall forecast
Twin Cities National Weather Service office

NOAA’s High-Resolution Rapid Refresh model favors less than an inch of rainfall for most of the Twin Cities into Saturday:

NOAA HRRR model pcp
High-Resolution Rapid Refresh model precipitation output through Saturday
NOAA, via Pivotal Weather

A flood watch continues for southern Minnesota through Saturday afternoon:

Flood watch
Flood watch
Twin Cities National Weather Service office

Including the cities of Blue Earth, Chaska, Waseca, Albert Lea, Owatonna, Red Wing, Mankato, Blaine, Minneapolis, Faribault, Durand, Hastings, Chanhassen, Stillwater, Le Sueur, Shakopee, St Paul, Victoria, Monticello, River Falls, St Peter, Menomonie, Hudson, Gaylord, and Hutchinson

1250 PM CDT Fri Jun 21 2024

...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON...

* WHAT...Flash flooding caused by excessive rainfall continues to be possible.

* WHERE...Portions of Minnesota, including the following areas, Anoka, Blue Earth, Carver, Dakota, Faribault, Freeborn, Goodhue, Hennepin, Le Sueur, McLeod, Nicollet, Ramsey, Rice, Scott, Sibley, Steele, Waseca, Washington and Wright and west central Wisconsin, including the following areas, Dunn, Pepin, Pierce and St. Croix.

* WHEN...Through Saturday afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Extensive street flooding and flooding of creeks and rivers are possible.

* ADDITIONAL DETAILS... - Saturated soils combined with another couple rounds of very heavy rain could result in flash flooding.