Wednesday, January 25, 2012
A 50-percent chance of rain, snow and sleet is expected across parts of central and southeastern Missouri before noon, then a chance of rain continuing as temperatures rise. Little, if any accumulation is expected.
The National Weather Service says a mix of light snow, sleet and rain is possible this morning, with the mix transitioning to all rain from southwest to northeast, starting this afternoon. The NWS predicts minor accumulations could occur along and north of a line from Rolla to Ste. Genivieve.
The NWS office in St. Louis issued this hazardous weather statement:
A LARGE SHIELD OF PRECIPITATION COURTESY OF A STORM SYSTEM CENTERED OVER WESTERN TEXAS IS EXPECTED TO MOVE NORTHEASTWARD INTO COLDER AND DRIER AIR ENTRENCHED OVER MISSOURI AND ILLINOIS TODAY.
AS THIS PRECIPITATION MOVES INTO THE COLDER AND DRIER AIRMASS, A WINTRY MIX IS ANTICIPATED TO RESULT. THIS WINTRY MIX SHOULD ONLY LAST FOR AN HOUR OR TWO AT MOST LOCATIONS AND WILL TAKE THE FORM OF SOME COMBINATION OF SNOW, SLEET AND RAIN. THERE ARE INCREASING INDICATIONS, HOWEVER, THAT THE CHANCE FOR SLEET WILL PERSIST FOR PARTS OF ST. LOUIS METRO AND SOUTHWESTERN ILLINOIS THROUGH MUCH OF THE AFTERNOON.
THIS PRECIPITATION IS EXPECTED TO AFFECT MUCH OF SOUTHEAST MISSOURI BY 9 AM AND THEN PUSH INTO PORTIONS OF SOUTHWEST ILLINOIS AND THE ST. LOUIS METRO AREA BY THE NOON HOUR. LITTLE IF ANY ACCUMULATION IS EXPECTED AND THE IMPACT OF THIS WINTRY PRECIPITATION IS EXPECTED TO BE LOW DUE TO TEMPERATURES RISING ABOVE FREEZING, ROADWAYS THAT ARE PREVIOUSLY TREATED, AND THE GENERAL LIGHT INTENSITY OF THE PRECIPITATION. NEVERTHELESS, IF WINTRY PRECIPITATION IS OBSERVED, EXERCISE SOME CAUTION IF DRIVING.
PRECIPITATION IS EXPECTED TO TRANSITION TO ALL RAIN BY AFTERNOON FOR MOST AREAS.
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