MESOSCALE DISCUSSION 2314
   NWS STORM PREDICTION CENTER NORMAN OK
   1137 PM CST THU DEC 28 2006
   
   AREAS AFFECTED...EXTREME ERN CO...NWRN KS AND SWRN NEB
   
   CONCERNING...FREEZING RAIN 
   
   VALID 290537Z - 290930Z
   
   FREEZING RAIN RATES ARE LIKELY TO INCREASE BETWEEN 07Z AND 12Z
   ACROSS PORTIONS OF NWRN KS AND SWRN NEB. AMOUNTS UP TO .05 INCH PER
   HOUR ARE POSSIBLE DURING THIS PERIOD.
   
   STATIONARY FRONT STRETCHES ACROSS KS FROM THE N CENTRAL SECTIONS
   INTO THE SW. A 40 KT SELY LOW LEVEL JET EXTENDED FROM CENTRAL OK 
   NWWD INTO KS OVER...THIS SHALLOW BOUNDARY...RESULTING IN STRONG
   FRONTOGENESIS AROUND 900 MB. WEAK PRECIPITATION ECHOES ARE LOCATED
   WITHIN JET AXIS FROM CENTRAL OK NWWD INTO SRN/SWRN KS AND SHOULD
   SPREAD NWWD AND INCREASE WITHIN THE JET AXIS. 
   
   THE LIFT FROM THE WARM ADVECTION WILL BE ACCENTUATED BY A MID/HIGH
   LEVEL JET MAX LIFTING NWD FROM THE TX PANHANDLE INTO WRN KS/NEB
   LATER TONIGHT. THIS SHOULD RESULT IN PRECIPITATION INCREASING IN
   COVERAGE/INTENSITY...ESPECIALLY AFTER 07Z.
   
   ALTHOUGH SURFACE TEMPERATURES ARE BELOW FREEZING...TEMPERATURES ARE
   1 TO 3C ABOVE FREEZING BETWEEN 900MB AND 800MB...WHICH WILL RESULT
   IN PRECIPITATION REACHING THE GROUND AS FREEZING RAIN. ALTHOUGH SOME
   FREEZING RAIN HAS BEEN REPORTED IN ERN CO...THE COLD AIR WILL DEEPEN
   ACROSS THIS REGION AND IS EXPECTED TO CHANGE TO SNOW BETWEEN
   06Z-09Z.
   
   ..IMY.. 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...
   
   37990192 38310201 39140187 40330129 40960072 40919977
   40699959 39480041 38640086 38050145