“Threats as these storms initially develop include very large hail and tornadoes … but the threat will transition to primarily wind damage as storms form into a squall line”. The National Weather Service dropped the North Dakota counties late Saturday afternoon.
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Sunday’s weather is expected to be cooler and windier with a high of about 70 degrees. That means that air flowing outward in the upper atmosphere must be replaced by rising air.
Storms are now in Nebraska with the cold front just southeast in Hastings and will continue pushing southeast this evening.
Expect strong storms to develop first across northwestern Minnesota this afternoon and then build farther to the south as the whole storm system moves eastward. The Storm Prediction Center has the entire state under a slight risk area with an enhanced risk area for the western half of the state.
It appeared the line would move through the heart of the metro sometime between 10 p.m. and midnight Saturday.
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Meteorologists say Iowans can plan on seeing strong thunderstorms and perhaps severe weather Saturday afternoon and evening. And remember that the biggest risk to people outdoors during thunderstorms is from lightning.
