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Severe Thunderstorms in the Central U.S.; Upper Level Low Over California

Scattered severe thunderstorms are possible today across central and eastern Minnesota, Iowa, and western Wisconsin. A few tornadoes, isolated very large hail, and damaging winds may occur. An upper level low will help trigger scattered thunderstorms over portions of central and southern California today along with a few inches of snow in the central Sierra Nevadas. Read More >

Fig. 18. Radar base reflectivity from 2206 to 2340 UTC showing convection along an east- to-west oriented segment of Claudette’s outer rainband north of the storm’s center. At least two storms seen in the loop were relatively long lived and displayed evidence of storm scale organization.