National Weather Service United States Department of Commerce

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 >

This is a vertical cross-section of the supercell thunderstorm that produced an F4 tornado near the city of Madison in Madison County. The number scale on the left side of the images represents height in thousands of feet, while the scale on the bottom represents distance in nautical miles.