National Weather Service United States Department of Commerce

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Overview

A significant low pressure system approached the northern plains on Friday, April 22. Ahead of this system, warm, moist air was advected into our region. Thunderstorms began to develop early Friday evening, some of which became severe, dropping large hail and producing strong winds. Several places received an inch or two of rain, much needed in our current drought situation. Storms moved eastward and dissipated Friday night. On Saturday morning, precipitation increased again, and rain changed over to snow. Northwesterly winds became strong, gusting to 70+ mph in some locations. The strong winds combined with the falling snow created very poor visibilities and hazardous travel conditions. Some areas received heavy snow, but even in areas that didn't receive heavy snow, the blowing snow caused blizzard conditions. 

Horses
West of Gillette (A. Cope)
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