MESOSCALE DISCUSSION 0021
   NWS STORM PREDICTION CENTER NORMAN OK
   0705 AM CST TUE JAN 04 2005
   
   AREAS AFFECTED...SWRN NE / MUCH OF WRN AND SRN KS / NWRN OK /
   EXTREME NERN TX PANHANDLE
   
   CONCERNING...FREEZING RAIN 
   
   VALID 041305Z - 041800Z
   
   WINTER PRECIPITATION WILL INCREASE IN COVERAGE THROUGH THE MORNING
   HOURS. FREEZING RAIN WITH SOME ACCUMULATION WILL FALL OVER NWRN OK
   AND SOUTHERN KS...WITH HOURLY RATES AROUND 0.05 IN.  FARTHER
   N...FREEZING RAIN AND SLEET WILL BE LIKELY INTO NWRN KS...CHANGING
   TO A MIXTURE OF SLEET AND SNOW OVER SWRN NEBRASKA. 
   
   ISENTROPIC LIFT NEAR 850 FRONT WILL PERSIST MUCH OF THE DAY...FROM
   THE TX PANHANDLE ENEWD ACROSS NRN OK AND INTO SERN KS / SWRN MO. 12Z
   DDC RAOB SHOWS VERY WARM TEMPERATURES BETWEEN 850-700 MB...WHICH
   WILL REMAIN ABOVE FREEZING EVEN WHEN SATURATED. FARTHER S...AMA AND
   OUN RAOBS EXHIBIT CONVECTIVE INSTABILITY. THEREFORE...ALTHOUGH HRLY
   PRECIPITATION RATES ARE EXPECTED TO AVERAGE AROUND 0.05
   IN...OCCASIONAL HEAVY BURSTS OF 0.10-0.20 IN/HR ARE EXPECTED OVER
   NWRN OK AND FAR SRN KS.  
   
   FARTHER N INTO NWRN KS AND SWRN NEBRASKA...SLEET AND SNOW WILL BE
   LIKELY...WITH SNOWFALL RATES OF 0.50-1.00 IN/HR.
   
   ..JEWELL.. 01/04/2005
   
   
   ...NOTICE...
   SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A 
   SCHEDULED BASIS...FOUR TIMES A DAY...BETWEEN 00-01 UTC...
   06-07 UTC...12-13 UTC...AND 18-19 UTC AS SIGNIFICANT SHORT
   RANGE WINTER WEATHER EVENTS UNFOLD.  THIS SCHEDULE WILL BE
   USED FROM DECEMBER 1 THROUGH FEBRUARY 28.
   
   ATTN...WFO...SGF...ICT...OUN...GID...LBF...DDC...GLD...AMA...
   
   36530119 36220057 35910005 35799969 35799907 35919859
   36399824 36789779 37259692 37419559 37689497 37849597
   38099650 38529717 39119863 40439938 41299958 41630048
   41380187 40980188 40050188 38330189 36730153