The Threat for Oklahoma City’s 1st Winter Weather Event Continues Sunday & Monday (2/10/2012)


WIDESPREAD WINTRY MIX STILL EXPECTED LATE SUNDAY THROUGH EARLY MONDAY:

VERY COLD AIR, WHICH WILL SPREAD OVER OKLAHOMA AND WESTERN NORTH TEXAS LATER TODAY INTO EARLY THIS WEEKEND WILL LEAD TO A CHANCE OF ICE AND SNOW WHEN A STORM SYSTEM ARRIVES LATE THIS WEEKEND. BEGINNING LATE SUNDAY AND CONTINUING THROUGH MONDAY, THIS STORM SYSTEM WILL PULL RELATIVELY WARM AND MOIST AIR UP OVER THE COLD AIR ENTRENCHED AT THE SURFACE. ALTHOUGH THIS PROCESS WILL HELP MODIFY AND ERODE THE COLDER AIR, THE ATMOSPHERE WILL WARM FASTEST ALOFT. THIS WILL LEAD TO A MIXTURE OF SNOW, SLEET, AND FREEZING RAIN OVER MUCH OF OKLAHOMA AND WESTERN NORTH TEXAS.

PRECIPITATION IS EXPECTED TO BEGIN AS EARLY AS SUNDAY AFTERNOON ACROSS WESTERN NORTH TEXAS AND WESTERN OKLAHOMA, AND THEN SPREAD NORTHEAST. IT CURRENTLY APPEARS THAT PRECIPITATION WILL START AS SNOW, THEN TRANSITION TO A MIXTURE OF SLEET AND FREEZING RAIN SUNDAY NIGHT, BEFORE SWITCHING TO RAIN ON MONDAY. THE GREATEST CHANCE OF ACCUMULATING SNOW, IN THE 4-8 INCH RANGE, IS FORECAST TO OCCUR WITH AN AREA OF SNOW THAT IS EXPECTED TO DEVELOP OVER FAR WESTERN OKLAHOMA, AND ADJACENT PARTS OF NORTH TEXAS SUNDAY AFTERNOON AND THEN MOVE NORTHEAST TOWARD NORTH CENTRAL OKLAHOMA SUNDAY NIGHT. THE GREATEST CHANCE OF SLEET AND SNOW WILL OCCUR ALONG THE I-44 CORRIDOR FROM NEAR WICHITA FALLS UP THROUGH OKLAHOMA CITY THROUGH TULSA AND JOPLIN. THE GREATEST CHANCE FOR FREEZING RAIN WILL BE OVER SOUTH-CENTRAL AND SOUTHEAST OKLAHOMA, INCLUDING ARDMORE, MCALESTER, SALLISAW AND IDABEL.

CURRENT MODEL FORECASTS SUGGEST THAT ACCUMULATIONS WILL BE RELATIVELY LIGHT AND SHOULD NOT CAUSE SIGNIFICANT DISRUPTIONS TO TRAVEL OR POWER SUPPLIES. HOWEVER, WITH IT BEING QUITE COLD INITIALLY ON SUNDAY AND SUNDAY NIGHT, IT WILL NOT TAKE MUCH PRECIPITATION TO CREATE SLICK AND HAZARDOUS BRIDGES, OVERPASSES, AND SIDEWALKS. YOU SHOULD CHECK NOAA WEATHER RADIO, OR YOUR FAVORITE INTERNET AND TV SOURCES FOR THE LATEST INFORMATION ON THE UPCOMING WINTER WEATHER.

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