National Weather Service United States Department of Commerce

Heavy Rain in the Ohio and Tennessee Valleys; Watching for Tropical Cyclone Development in the Atlantic

Heavy to excessive rainfall may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. One tropical wave will bring periods of heavy rain, thunderstorms, flood risk, and landslides to Puerto Rico and the US Virgin Islands through Friday morning. 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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