National Weather Service United States Department of Commerce

Overview

During the day of April 2nd 2024, a strengthening surface low pressure system took shape over the Mid MS River Valley as the low center developed over central IL. A prominent boundary then developed just north of the OH River and stretched from IL over to southwest PA. This surface boundary remained in place through the day as a strong jet streak tracked northeast into the OH Valley and remained prevalent through the day and into the overnight period. Thus, the forcing that was in place combined with strong southerly moist flow lead to precipitable water values between 1.25 to 1.50 across the area for just about the entire period of concern.  All of these ingredients lead to prolonged periods of rainfall and eventually lead to substantial flooding across the area. To boot, when the better upper level support and surface parameters developed, severe thunderstorms began in western OH and IN and moved east into the Pittsburgh forecast area. Thus, severe thunderstorm and tornado warnings were issued for Muskingum, Guernsey and Coshocton counties. These locations, Muskingum and Guernsey did receive tornado damage that ranged from EF0 to EF1. The environment into the affected counties was less supportive storm development than to the west but was enough to keep a storm going east into Guernsey County.  

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Tornado Watch
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