National Weather Service United States Department of Commerce

Heavy to Excessive Rainfall in the Central Appalachians; Severe Weather in the Mid-South; Hot Weather in Southern California

Heavy to excessive rainfall may lead to flooding today over southwest Pennsylvania into northern West Virginia, and western Maryland. Severe thunderstorms are possible this afternoon and evening in the Mid-South and across Eastern North Carolina. An extended period of hot weather is forecast for parts of coastal southern California including Los Angeles from today through Thursday. Read More >

Overview

A strong fall cyclone crossing the upper midwest combined with an unseasonable surge of moisture into the Ohio valley set the stage for a fall tornado outbreak. Numerous tornadoes were observed across the deep south, Tennessee valley and Ohio valley. Several killer tornadoes were observed including 2 in the Ohio valley. The strongest tornado recorded on this day was the Van Wert F4.

Due to the magnitude of this event, a service assessment team was formed to examine the warning and forecast services provided to emergency managers (EMs), government agencies, and the public. Service assessments provide a valuable contribution to ongoing efforts to improve the quality and timeliness of our products and services. Findings and recommendations from this assessment will help improve techniques, products, services, and the information provided to the American public.

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