Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >
Overview
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During the evening of August 16, 2016 severe thunderstorms produced hail and heavy rain in many Minnesota and Wisconsin counties. In Minnesota, 1.5 inch hail was reported in Hennepin and Cass counties and over 3 inches of rain fell in Burnsville, Lakeville, and Shakopee. There was flash-flooding in Burnsville, Eden Prairie, and Apple Valley as well. |
 Severe thunderstorm warning (yellow), flash-flood warnings (green), and rainfall (in inches) around the Twin Cities metro |
Flash-Flood and Severe Thunderstorm Warnings
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| Flash-flood warning issued at 7:05 PM for Barron, Chippewa, and Dunn counties | Flash-flood warning issued at 5:16 PM for Dakota, Scott, Carver, and Hennepin counties | Severe thunderstorm warning issued at 5:05 PM for Anoka, Ramsey, and Hennepin counties |
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| Severe thunderstorm warning issued at 6:21 PM for Le Sueur and Rice counties | Severe thunderstorm warning issued at 10:58 PM for Blue Earth and Faribault counties |
Photos:
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| Flying Cloud Drive mudslide in Eden Prairie (photo courtesy of Collin Leck) |
Street flooding in Lakeville (photo courtesy of Tim Lundahl) |
Prior Lake flooding (photo courtesy of Lindsay Jenner) |
Bunker Hill Park flooding in Lakeville (photo courtesy of Tim Lundahl) |
Radar:
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| NEXRAD reflectivity loop from 6:00 to 8:00 PM CDT |
Storm Reports
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| Local reports of rainfall, hail, and flash-floods | SPC Storm Reports |
Environment
High humidity, weak upper and lower-level winds, a trough axis over Minnesota, and the passage of a cold front allowed for a favorable severe storm/flood environment. Multiple storms tracking over the same area led to flooding in many cities.
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| National Forecast Chart | 12Z surface map analysis showing high humidity and very weak winds over MN and WI | 850 mb map analysis at 0Z |
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| 500 mb map analysis at 0Z | 250 mb map analysis at 0Z |
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