Strong thunderstorms will bring the threat for flooding rains today (Wednesday) into Thursday across the Upper Midwest. Flash Flood Watches include portions of South Dakota, Minnesota, Iowa, and Wisconsin. 3″ to 6″ rainfall totals are possible by Friday morning.
A Flash Flood Watch is in effect for southern Minnesota from 7 PM tonight through 1 PM Thursday. Torrential rainfall is possible in and near the Watch area. Be sure to monitor the latest forecasts, and be alert for possible warnings tonight into Thursday. #mnwx #wiwx pic.twitter.com/0wltmTfge0
— NWS Twin Cities (@NWSTwinCities) September 19, 2018
Heads up! Heavy rainfall is likely tonight. Areas either side of I-90 will see a widespread 1-3 inches, with locally 3-5 inches possible. pic.twitter.com/0w2pCCOMTZ
— NWS Sioux Falls (@NWSSiouxFalls) September 19, 2018
Several waves of storms are likely to push through the region. The first couple of rounds of rain will be associated with a warm front tonight into Thursday morning. Another line of thunderstorms will move through the area along a cold front Thursday night. Severe thunderstorms will be possible, along with the threat of flooding rains.
For WeatherNation: Meteorologist Mace Michaels