MESOSCALE DISCUSSION 2318
   NWS STORM PREDICTION CENTER NORMAN OK
   0101 PM CST FRI DEC 29 2006
   
   AREAS AFFECTED...WRN KS...SWRN NEB...ERN CO...WRN OK PANHANDLE
   
   CONCERNING...HEAVY SNOW 
   
   VALID 291901Z - 300030Z
   
   MDT TO HEAVY SNOW WILL CONTINUE OVER MUCH OF THE AREA...WITH A
   NARROW ZONE OF FREEZING RAIN ACROSS ERN PORTIONS OF DISCUSSION AREA.
   HRLY SNOWFALL RATES OF 1.00-2.00 IN/HR ARE LIKELY.
   
   HEAVY WINTER PRECIPITATION IS CURRENTLY ONGOING OVER WRN
   KS...EXTENDING NOW INTO SWRN NEB. OTHER AREAS OF HEAVIER
   PRECIPITATION CONTINUE TO MOVE NWD ACROSS THE TX/OK PANHANDLES.
   SURFACE ANALYSIS SHOWS FREEZING LINE NEARLY STATIONARY FROM LXN TO
   JUST W OF DDC AND E OF EHA...WITH FREEZING RAIN OCCURRING IN CLOSE
   PROXIMITY.  GIVEN SLOW MOVEMENT OF UPPER LOW...OVERALL PRECIPITATION
   TYPE IS NOT EXPECTED TO CHANGE MUCH THROUGH THE REST OF THE
   AFTERNOON. STRONG LOW LEVEL FRONTOGENETICAL FORCING COUPLED WITH
   WARM/MOIST ADVECTION ABOVE THE SURFACE WILL RESULT IN A CONTINUANCE
   OF HVY SNOW MAINLY FAR WRN KS/ERN CO...WITH A NARROW ZONE OF
   FREEZING RAIN ALONG AND JUST W OF SFC FREEZING LINE. FREEZING RAIN
   WILL LIKELY CHANGE TO SNOW FROM W TO E...AS BAROCLINIC ZONE
   TIGHTENS.
   
   ..JEWELL.. 12/29/2006
   
   
   ...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...GID...LBF...DDC...GLD...AMA...PUB...BOU...
   
   40839965 39799964 37310118 36760164 36500208 36510273
   37140299 38460307 39820298 40520240 41190066 

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Storm Prediction Center