[MCD] SWOMCD

Wed Dec 20 06:00:39 UTC 2006

ACUS11 KWNS 200601
SWOMCD
SPC MCD 200601 
NEZ000-SDZ000-KSZ000-OKZ000-TXZ000-201200-

MESOSCALE DISCUSSION 2283
NWS STORM PREDICTION CENTER NORMAN OK
1201 AM CST WED DEC 20 2006

AREAS AFFECTED...MUCH OF CNTRL NEBRASKA...WRN KS AND PORTIONS OF THE
OK/TX PANHANDLES

CONCERNING...FREEZING RAIN 

VALID 200601Z - 201200Z

AREAS OF MDT TO OCCASIONALLY HEAVY FREEZING RAIN WILL CONTINUE FOR A
FEW MORE HOURS ACROSS WRN KS...THE ERN OK PANHANDLE AND NERN TX
PANHANDLE WITH HRLY ACCUMULATIONS OF 0.10 - 0.20". FARTHER
N...FREEZING RAIN WILL SPREAD NEWD ACROSS CNTRL NEBRASKA...WITH HRLY
RATES OF 0.05-0.10".

LARGE AREA OF WARM ADVECTION PRECIPITATION CONTINUES TO SPREAD NWD
AHEAD OF UPPER TROUGH. COOLING ALOFT WILL EVENTUALLY ALLOW FOR A
CHANGEOVER TO SNOW ACROSS WRN TX/OK PANHANDLES...BUT NOT BEFORE 1-3
MORE HOURS OF SIGNIFICANT ICING.

FARTHER N...STRONG SELY 850 MB FLOW WILL MAINTAIN FREEZING RAIN
PROFILES FOR SEVERAL MORE HOURS FROM WRN KS INTO NEBRASKA. LOW LEVEL
PROFILES CONTINUE TO SATURATE OVER CNTRL NEBRASKA...WITH SURFACE WET
BULB TEMPERATURES BELOW FREEZING. THUS...FREEZING RAIN IS LIKELY TO
MATERIALIZE OVERNIGHT WITH 0.05 - 0.10"/HR POSSIBLE...CONTINUING
AFTER SUNRISE.

..JEWELL.. 12/20/2006

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

...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...FSD...OAX...GID...LBF...DDC...GLD...AMA...

42930059 42879827 41859712 41379691 40859797 40299871
39179928 37869995 36590064 36300077 36330118 36790126
38270123 39780117 40560122 41140116 42320154 