Weather Underground midday recap for Thursday, March 31, 2016
A low pressure system moved across the upper Mississippi Valley on Thursday, while a ridge of high pressure settled in over the West Coast.
An area of low pressure shifted east northeastward across the upper Mississippi Valley. This system ushered a mixture of rain and snow over the Intermountain West, the northern Plains and the Midwest. Winter weather advisories were issued for northwest Michigan. A cold frontal boundary extended south southwestward from the upper Mississippi Valley to the western Gulf Coast. This frontal boundary generated heavy rain and strong thunderstorms across parts of the Midwest, the Mississippi Valley, the Tennessee Valley and the Deep South. Flash flood warnings were issued in northeast Arkansas. Flood warnings were issued for a large portion of the lower Mississippi Valley. Greenwood, Miss., reported a midday total of 4.90 inches of rain. Memphis, Tenn., reported a midday total of 3.26 inches of rain. Tornado watches were also issued in southern Alabama and the western tier of the Florida Panhandle.
A stationary front associated with the aforementioned system stretched northeastward across the Great Lakes and the Northeast. A mixture of moderate rain and snow developed along and near this frontal boundary. Flood watches were issued for northern Maine.
Areas west of the Continental Divide experienced mostly dry weather due to a ridge of high pressure over the eastern Pacific.
Temperatures in the Lower 48 states Thursday have ranged from a morning low of 6 degrees at Wolf Creek Pass, Colo. to a midday high of 93 degrees at Harlingen, Texas
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