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Mesoscale Discussion 82
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   MESOSCALE DISCUSSION 0082
   NWS STORM PREDICTION CENTER NORMAN OK
   0721 AM CST TUE FEB 11 2014

   AREAS AFFECTED...NE SC AND SE NC

   CONCERNING...WINTER MIXED PRECIPITATION 

   VALID 111321Z - 111915Z

   SUMMARY...RAIN WILL CHANGE TO FREEZING RAIN...POSSIBLY MIXED WITH
   SNOW AND SLEET...THIS MORNING. PRECIPITATION RATES ARE EXPECTED TO
   INCREASE THROUGH MIDDAY.

   DISCUSSION...RAIN WAS CHANGING TO MIXED WINTER PRECIPITATION TYPES
   THIS MORNING ACROSS PARTS OF THE COASTAL PLAIN IN SE NC AND NE
   SC...AS SFC TEMPERATURES BEGIN TO FALL IN AREA OF LOW-LEVEL COLD-AIR
   ADVECTION. TEMPERATURES MAINLY FROM 30-33 DEGREES WILL CONTINUE TO
   FALL THROUGH THE DAY AND FREEZING RAIN...POSSIBLY MIXED WITH SNOW
   AND SLEET AT TIMES...IS EXPECTED FOR SEVERAL HOURS. PRECIPITATION
   RATES WILL INCREASE AS FRONTOGENETIC FORCING IN THE 850-700 MB LAYER
   OVERSPREADS THE REGION...AND WARM/MOIST ADVECTION OVERRIDES
   COLDER/DRIER LOW LEVELS. THIS TREND WAS EVIDENT IN SFC OBS AT KEYF
   WHERE MODERATE RAIN /33 DEGREES F/ AND AT KMRH WHERE MODERATE
   FREEZING RAIN /32 DEGREES F/ WAS REPORTED. FREEZING RAIN RATES COULD
   APPROACH 0.05 IN PER 3 HRS THROUGH THE MORNING HOURS.

   ..LEITMAN.. 02/11/2014


   ATTN...WFO...MHX...RAH...ILM...CAE...GSP...

   LAT...LON   34858081 35047955 35287719 35287664 35167628 34927622
               34687626 34427682 33767803 33727824 33717893 33757956
               33918026 34108063 34418108 34768119 34858081 

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Page last modified: February 11, 2014
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