Published: July 10,2016
Severe thunderstorms, primarily with damaging winds and large hail, are expected to hit the northern Plains, Upper Midwest and Great Lakes Sunday-Tuesday. A few tornadoes are also possible.
Flash flooding will also be a concern to start this week as thunderstorm complexes unleash heavy rainfall in a short period of time.
The severe weather threat is being triggered by a strong area of surface low pressure and a vigorous jet stream disturbance moving into those regions.
(MORE: National Interactive Radar Map | Differences Between a Watch and a Warning)
![Guide to Watches and Warnings](https://s.w-x.co/iimwx/web/2013/rww.jpg)
![](https://i.imwx.com/images/maps/truvu/map_specnewsdct-02_ltst_4namus_enus_650x366.jpg)
Current Radar with Watches and Warnings
Severe Weather Forecast
Sunday- Forecast: The potential for severe thunderstorms will stretch from parts of eastern Montana into the Dakotas and Minnesota.
- Threats: Damaging winds and large hail are the main threats, but a few tornadoes are also possible.
- Cities: Glasgow, Montana | Bismarck, North Dakota | Rapid City, South Dakota | Fargo, North Dakota
![](https://i.imwx.com/images/maps/truvu/map_specnewsdct-24_ltst_4namus_enus_650x366.jpg)
Sunday's Thunderstorm Forecast
- Forecast: The potential for severe thunderstorms shifts eastward and will stretch from the eastern Dakotas, Minnesota and western Wisconsin southward into parts of Iowa, northern Missouri, eastern Nebraska and northeast Kansas.
- Threats: Damaging winds and large hail can be expected, and a few tornadoes are possible.
- Cities: Grand Forks, North Dakota | Sioux Falls, South Dakota | Omaha, Nebraska | Duluth, Minnesota | Minneapolis
![](https://i.imwx.com/images/maps/truvu/map_specnewsdct-22_ltst_4namus_enus_650x366.jpg)
Monday's Thunderstorm Forecast
- Forecast: Some severe weather may continue on Tuesday as the cold front marches east from upper Michigan southwestward into parts of Wisconsin, Illinois, Iowa and northern Missouri.
- Threats: Damaging winds, large hail and locally heavy rainfall.
- Cities: Chicago | Des Moines | Milwaukee
![](https://i.imwx.com/images/maps/truvu/map_specnewsdct-39_ltst_4namus_enus_650x366.jpg)
Tuesday's Thunderstorm Forecast
Setup For Severe Weather
An exaggerated jet stream pattern will set the stage for severe weather to develop on Sunday. A significant cold trough of low pressure (dip in the jet stream) will slide eastward from the northern Rockies. Meanwhile, a very warm high-pressure ridge (bulge in the jet stream) will prevail up through the Great Lakes.![](https://i.imwx.com/images/maps/truvu/map_specnewsdct-43_ltst_4namus_enus_650x366.jpg)
Jet Stream Forecast Monday (GFS Model)
By Tuesday, the trough will weaken so severe weather will likely be spotty across the Great Lakes region.
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