National Weather Service United States Department of Commerce

Heavy Rain Continues in Florida; Cold Front Brings Thunderstorms and Showers to Central US

Scattered areas of heavy rain continue to produce isolated flash flooding across the Florida peninsula. Anomalous moisture will combine with a cold front and will bring heavy rain and scattered flash flooding across the Mid-South, Ohio and Tennessee Valleys today and Tuesday. Above average temperatures will continue to be found ahead of the cold front from the Midwest to the Northeast. Read More >

Overview

During the afternoon and evening hours of September 21st, a few rounds of strong to severe thunderstorms developed. The first round of storms developed north of a warm front with a weak upper level disturbance as warmer air and moisture returned to the region. Storms in the Eau Claire area pushed out an outflow boundary that traveled southward across much of the forecast area and provided an additional focus for storms. Meanwhile, by mid afternoon, a warm front was lifting north toward Rochester and Prairie Du Chien with temperatures warming to around 90, while the outflow boundary limited the high at La Crosse to 80 degrees. A few of the storms along and north of the outflow boundary produced 1 to 2" hail and damaging winds. Heavy rainfall also occurred. Storms that developed along the outflow produced some 1.0" to 3.0" rainfall amounts. Additional rainfall fell overnight and into the morning of the 22nd across Clayton and Grant Counties as the upper level trough pushed through, upping their rain totals in a band from the southwest to northeast.

radar loop from Sep 21 2024
Radar loop from 11 AM CDT through 7 PM CDT Saturday
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