Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies; Heavy Rain in Guam

A storm system moving over the Rockies today will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Heavy snow expected from northwestern Wyoming into southern Montana. Ongoing heavy showers and thunderstorms from Invest 96W could result in localized flash flooding, particularly in central or southern Guam early this morning. Read More >

Overview

Microburst winds, peaking at 100 to 110 mph, produced damage over about a mile stretch of Highway 36 north of the center of Frenchburg, KY early Thursday evening, July 5th, 2018. The damage began just east of the highway near the water treatment plant and ended east of Highway 36 near a salt storage structure, where the thick tarp covering was torn. Some damage was also noted just west of Highway 36 where some shingles were blown off of a small shed. Metal roofing was also peeled back off of a residential roof and numerous trees were felled or damaged. The most intense damage occurred along a 125 yard patch just south of Sorrell Road to Beaver Creek, where the winds broke trunks and uprooted several hardwood trees. The winds were most likely enhanced by the terrain as they descended from the west down a hollow. They were then directed to the south by a mountain barrier, creating an intense clockwise rotating eddy.