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Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

Overview

Several storms that developed across west central Wisconsin during the late afternoon, and early evening of July 4th, 2019, produced an EF0 tornado south of Bruce, Wisconsin. Numerous trees were blown down or uprooted. Some of the trees fell on lake cabins. 

The radar loop shows Radar Reflectivity (left) and Storm Relative Velocity (right) in 2 minute increments from 522 PM to 6:11 PM. The red area indicates outbound velocity, and green indicates inbound velocity (circulation, but at 12,000 feet above the surface) At times you can also see circulations in the velocity, which indicate rotating updrafts.