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Excessive Rainfall in Southeast Texas and Southern Louisiana; Dangerous Heat in the West and Northern Plains

Heavy to excessive rainfall will persist through Thursday from southeast Texas into southern Louisiana, bringing the threat of flash, urban and small stream flooding. A Moderate Risk (level 3 of 4) of excessive rainfall is in effect through Thursday. Dangerous heat will continue across the Western U.S. and northern Plains through Thursday. High temperatures could reach or exceed 100 degrees. Read More >

Overview

Severe storms with heavy rain, flash flooding, large hail, tornadoes, and damaging straight-line winds moved across northeastern Wyoming and western South Dakota during the afternoon and evening of July 4, 2019. Three short-lived tornadoes occurred in the higher Black Hills (one south of Black Fox Campground, one east of Deerfield Lake, and another northwest of Jewel Cave; damage surveys were done on July 26th and August 2nd to confirm). Otherwise, considerable damage was reported because of flooding and the straight-line winds. Fireworks shows also were cancelled or postponed because of Mother Nature's natural fireworks display. The lightning map to the right shows that there were a lot of cloud-to-ground lightning flashes across the Black Hills area.

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24-hour cloud-to-ground lightning
from 6 am July 4 to 6 am July 5, 2019
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