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Mesoscale Discussion 41
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   MESOSCALE DISCUSSION 0041
   NWS STORM PREDICTION CENTER NORMAN OK
   0943 PM CST TUE JAN 28 2014

   AREAS AFFECTED...COASTAL PLAIN OF THE CAROLINAS AND GA

   CONCERNING...WINTER MIXED PRECIPITATION 

   VALID 290343Z - 290945Z

   SUMMARY...MIXED LIGHT FREEZING RAIN...SLEET AND SNOW WITH
   PRECIPITATION RATES OF 0.02 TO 0.08 IN/HR WILL TRANSITION TO SLEET
   AND SNOW OVERNIGHT...WHILE GRADUALLY DIMINISHING FROM SW TO NE.

   DISCUSSION...A LARGE SWATH OF MIXED PRECIPITATION HAS PERSISTED FOR
   THE PAST SEVERAL HOURS ACROSS THE ATLANTIC COASTAL PLAIN. THE
   SURFACE WET-BULB FREEZING LINE HAS SLOWLY PROGRESSED SWD ACROSS SRN
   GA AND FAR SRN SC. VWP DATA FROM THE FL PANHANDLE TO SC GENERALLY
   INDICATE GRADUAL VEERING OF 1-2 KM AGL SWLYS TO W/NWLYS...SUGGESTIVE
   OF INCREASING CAA WITHIN THE ABOVE-FREEZING WARM NOSE SAMPLED IN 00Z
   CHS/MHX RAOBS. THIS WILL LIKELY YIELD A SLOW TRANSITION IN
   PTYPES...SUPPORTED BY 21Z SREF AND 00Z NAM GUIDANCE. AS THIS
   OCCURS...STRONGER LOW-LEVEL WAA/ISENTROPIC ASCENT WILL SHIFT ALONG
   AND OFF THE COAST. THIS WILL RESULT IN TAPERING OF PRECIP RATES
   FIRST OVER GA AND EVENTUALLY OVER THE COASTAL CAROLINAS BETWEEN
   09-12Z.

   ..GRAMS.. 01/29/2014


   ATTN...WFO...MHX...RAH...ILM...CHS...CAE...JAX...FFC...TAE...

   LAT...LON   35547723 35837654 36057580 35757544 34847640 33807806
               32508038 31908269 31418392 31438449 31848482 32358419
               33168250 33998045 35197803 35547723 

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Page last modified: January 29, 2014
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