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Weather across the nation: 4/23/13

4:33 PM, Apr 23, 2013   |    comments
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Active weather continued across the nation's midsection on Tuesday as a frontal boundary cutting across Central U.S. reached from the Upper Great Lakes southwestward through the Southern Plains.

A cold airmass behind this disturbance maintained unseasonably cold temperatures from parts of the Upper Midwest into the Central Plains and allowed moderate to heavy snow showers and areas of mixed wintry precipitation to develop from parts of Michigan's Upper Peninsula and Wisconsin through portions of Kansas and into eastern Colorado.

Areas of the Upper Midwest were expected to pick up 6 to 9 inches of wet snow through Tuesday, while lighter snow accumulations of up to 2 inches with ice accumulations of up to a tenth of an inch become possible in the Central Plains. Meanwhile, areas near and ahead of the frontal disturbance from the Great Lakes into Lower Mississippi Valley and the Southern Plains experienced light to moderate rain showers and chances of thunderstorms.

Meanwhile to the east of this activity, showers and thunderstorms tapered off across the Florida Peninsula as the cold front affecting the area shifted northeastward and its associated low pressure lifted north-northeastward off the Mid-Atlantic coast. Rainy and windy weather conditions were possible along the parts of the Mid-Atlantic and New England coasts due to the offshore low.

TUESDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................91 Thermal, Calif.

HIGHEST HEAT INDEX (DEGREES F)..........................91 McAllen, Texas

LOWEST TEMPERATURE (DEGREES F)..........................-9 Yellowstone, Wyo.

LOWEST WIND CHILL (DEGREES F)...........................-15 Yellowstone, Wyo.

HIGHEST WIND GUST (MPH).................................85 Tin City, Alaska

HIGHEST PRECIPITATION (INCHES)..........................0.90 McConnell AFB, Kan.

ON THIS DATE....... Snow fell in the high elevations of Southern California as a strong storm moved across the region on this date in 1988. The storm also produced thunderstorms, and nine girls were injured as lightning hit the tree they had huddled under for shelter.

The Associated Press

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