MESOSCALE DISCUSSION 0014
   NWS STORM PREDICTION CENTER NORMAN OK
   0513 AM CST MON JAN 05 2009
   
   AREAS AFFECTED...PARTS OF W CNTRL/N CNTRL TX
   
   CONCERNING...FREEZING RAIN 
   
   VALID 051113Z - 051330Z
   
   CORRECTED FIRST SENTENCE MAIN PARAGRAPH
   
   LIGHT FREEZING RAIN IS DEVELOPING...AND ACCUMULATING ICE APPEARS
   POSSIBLE AS IT PERSISTS AT LEAST INTO THE LATE MORNING/MID DAY
   HOURS.
   
   MID-LEVEL MOISTURE INFLUX AND BROAD LARGE-SCALE ASCENT IS WELL
   UNDERWAY...DOWNSTREAM OF A POSITIVELY TILTED UPPER TROUGH IN A
   SOUTHERN BRANCH OF SPLIT POLAR FLOW ACROSS BAJA AND THE SOUTHWESTERN
   STATES.  AN ASSOCIATED INCREASE IN PRECIPITATION FROM ALOFT IS
   GRADUALLY SATURATING A PREVIOUSLY WARM AND DRY LAYER IN THE
   LOWER/MID TROPOSPHERE ACROSS CENTRAL TEXAS...AND THE COLD/DRY
   BOUNDARY LAYER ASSOCIATED WITH THE RECENT COLD INTRUSION WILL FOLLOW
   SUIT.  WHILE LOW-LEVEL COLD ADVECTION IS BECOMING INCREASINGLY
   NEGLIGIBLE...WET-BULB COOLING TO NEAR OR SUB-FREEZING TEMPERATURES
   IS EXPECTED TO BECOME COMMONPLACE FROM THE EDWARDS PLATEAU THROUGH
   PARTS OF THE TEXAS HILL COUNTRY...PERHAPS NORTHWARD INTO THE
   DALLAS/FORT WORTH METROPLEX BY 14-15Z.  WARM GROUND TEMPERATURES MAY
   MITIGATE ICING CONCERNS ON MANY ROAD SURFACES...BUT POTENTIAL FOR
   APPRECIABLE GLAZING OF EXPOSED OBJECTS AND ELEVATED ROAD SURFACES
   WILL EXIST...AS RAINFALL RATES PERIODICALLY EXCEED .10 INCHES PER
   HOUR THIS MORNING.
   
   ..KERR.. 01/05/2009
   
   
   ...NOTICE...
   SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A
   SCHEDULED BASIS FROM DECEMBER 1 THROUGH FEBRUARY 28...FOUR
   TIMES A DAY...AROUND 00 UTC...06 UTC...12 UTC...AND 18 UTC
   FOR SIGNIFICANT SHORT RANGE WINTER WEATHER EVENTS.
   
   ATTN...WFO...FWD...EWX...SJT...
   
   LAT...LON   29729855 29659912 29620009 29960107 30610145 31270117
               31699994 32179893 32889771 32819690 30439768 29729855