[MCD] SWOMCD

Sun Nov 27 20:26:05 UTC 2005

ACUS11 KWNS 272023
SWOMCD
SPC MCD 272023 
MNZ000-SDZ000-NDZ000-280100-

MESOSCALE DISCUSSION 2475
NWS STORM PREDICTION CENTER NORMAN OK
0223 PM CST SUN NOV 27 2005

AREAS AFFECTED...ERN SD/FAR SE ND

CONCERNING...FREEZING RAIN 

VALID 272023Z - 280100Z

FREEZING RAIN THREAT TO INCREASE ACROSS ERN SD/FAR SE ND THROUGH
EARLY EVENING...WITH POTENTIAL FOR APPRECIABLE ICE ACCUMULATIONS AND
0.05-0.10 IN/HR LIQUID WATER EQUIVALENTS.

STEADY MOISTURE TRANSPORT IS OCCURRING NWD INTO THE ERN DAKOTAS
ASSOCIATED WITH RAPIDLY DEEPENING KS CYCLONE. COLD SHALLOW AIRMASS
IS ENTRENCHED ACROSS ERN SD AND SE ND WEST OF STATIONARY
FRONT/INVERTED TROUGH...WITH 18Z RUC SOUNDINGS SUGGESTING
MAINTENENCE OF ELEVATED MELTING LAYER /AROUND 850 MB/ INTO THIS
EVENING. ACCORDINGLY...FREEZING RAIN HAS ALREADY BEEN REPORTED IN
THE ABERDEEN/HURON/MITCHELL SD AREAS EARLY THIS AFTERNOON. SIMILAR
TO OBSERVATIONAL TRENDS...18Z RUC/09Z SREF GUIDANCE SUGGESTS HIGHEST
PROBABILITY FOR FREEZING RAIN WITH APPRECIABLE ICE ACCUMULATIONS
THROUGH EARLY EVENING APPEARS TO BE IN AREAS ALONG/WEST OF
I-29...AND NORTH OF I-90 IN SD.

..GUYER.. 11/27/2005

...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...BETWEEN 00-01 UTC...06-07 UTC...12-13 UTC...
AND 18-19 UTC FOR SIGNIFICANT SHORT RANGE WINTER WEATHER EVENTS.

ATTN...WFO...FGF...FSD...ABR...BIS...

44109964 44909953 45649887 46059832 46249768 46249722
46169676 45669653 45019682 44499719 43869762 43589863
43629919 

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