National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rainfall from the Plains to the Mid-Atlantic

Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota from this afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding through Wednesday. Read More >

Overview

A unique and rare weather pattern characterized by persistent low pressure over the Desert Southwest lead to multiple days of widespread heavy rain for the combined Texas and Oklahoma Panhandles. The heavy rain was mainly due to the fact that the atmosphere was relatively warm and very moist, with total atmospheric moisture above the 90th percentile to near daily max values with subtropical moisture being pumped into the area. There was also some severe weather, but hail sizes rarely were above the size of quarters and damaging wind reports were not common. The flooding reports were numerous, however. Many of the area rivers and creeks were approaching record levels, and many locations were impacts by flash flooding as well.

 

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