National Weather Service United States Department of Commerce

Severe Weather Continues for the Center of the Nation; Heat Concerns for Southern Texas

A developing storm across the Plains will bring rounds of severe weather for center of the nation the next couple of days. In addition, increasing temperatures and winds with low humidity values will raise wildfire concerns for portions of the Southwest. These temperatures may set new records for southern Texas this week. The northern Great Basin and northern Rockies, cooler conditions arrives. Read More >

Updated: 1215 PM CDT Sept 21, 2016


Multiple rounds of heavy rain can be expected through Thursday.  Several inches are likely which could result in flash flooding and significant rises on rivers and lakes.  The heaviest rainfall amounts are likely to fall across east central/southeast Minnesota into west central/southwest Wisconsin.

There is also a chance for severe weather this afternoon and evening.  As thunderstorms develop, they will be capable of producing large hail, damaging winds, and tornadoes.

Stay weather aware this week and monitor later forecasts closely.

Key Points

  • Potential Impacts: Flooded roads, rising rivers, urban flash flooding.
  • Timing: through Thursday.
  • Amounts: Widespread 2 to 4 inches, locally 6+ inches - especially in the Moderate Risk area for flash flooding shown below.
  • Forecast Confidence:  High for potential impacts, location, and timing.  Moderate for flood risk and rain amounts.

Rainfall Forecasts
Note: maps indicate an areal average.  Locally higher and lower totals should be expected. 
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Day 1 Day 2 Day 3
Day 4-5 Day 6-7 Day 1-7 Total


Excessive Rainfall Outlooks
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Day 1 Day 2 Day 3

Today's Severe Weather Outlook
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Severe Weather Risk Tornado Risk Damaging Wind Risk Large Hail Risk