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Heat and Fire Weather Concerns in the West; Excessive Rainfall Possible in the South-Central U.S.

Heat will build over the Intermountain West and the Southwest the next couple of days. Lightning from dry thunderstorms can create new fire starts and combined with gusty winds may cause a fire to rapidly grow in Oregon and northern California. Flash flooding will be possible in New Mexico and west Texas today, as well as parts of the southern and central Plains due to slow moving thunderstorms. Read More >

Overview

On July 8, 2021, a powerful supercell thunderstorm tracked from extreme southeastern Montana to just east of the Black Hills and into north-central Nebraska. This storm made a direct hit on the NWS Rapid City radar just north of New Underwood, South Dakota. Hail up to tennis ball size and wind gusts up to 70 mph produced damaging wind-driven hail that affected much of the storm's path. Satellite images revealed vegetation damage several days after the hailstorm.

July 9, 2021 KUDX WSR-88D Radar Dome Damage
July 9, 2021 KUDX WSR-88D Radar Dome Damage
554 PM MDT July 8, 2021 0.5 Degree Base Reflectivity
554 PM MDT July 8, 2021 0.5 Degree Base Reflectivity as the supercell hit the Radar Dome
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