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Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Overview

On the afternoon of July 26, 2022, strong to severe storms developed along a stationary frontal boundary across eastern Colorado. Storms initially fired across southern Yuma County, but then proceeded to build southwest along the boundary. Atmospheric instability was high on this day, with SBCape in excess of 3000 j/kg by the afternoon hours to go along with low level lapse rates in excess of 9 C/km. Wind shear was also heightened on this day with 0-6 km Effective Bulk Shear of 30-40 kts, and surface vorticity was maximized along the boundary which is favorable for landspout tornado development. As the afternoon progressed and storms matured, tornadoes occurred in eastern Colorado, and as far as we can tell, there were 4 distinct tornadoes in Kit Carson County. In addition, one hail report was received with this event.

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