[MCD] SWOMCD

[Mesoscale Convective Discussions]

ACUS11 KWNS 300018
SWOMCD
SPC MCD 300017 
MNZ000-SDZ000-NDZ000-300615-

MESOSCALE DISCUSSION 2601
NWS STORM PREDICTION CENTER NORMAN OK
0617 PM CST THU DEC 29 2005

AREAS AFFECTED...SE NORTH DAKOTA...NE SOUTH DAKOTA...WEST CNTRL
MINNESOTA

CONCERNING...HEAVY SNOW 

VALID 300017Z - 300615Z

SNOWFALL RATES WILL APPROACH 1 INCH PER HOUR OVER SOUTHEAST NORTH
DAKOTA...NORTHEAST SOUTH DAKOTA...AND WEST CENTRAL MINNESOTA.

A LOW PRESSURE SYSTEM OVER CENTRAL SOUTH DAKOTA WILL CONTINUE TO
MOVE EASTWARD INTO NORTHERN IOWA.  THE UPWARD VERTICAL MOTION
ASSOCIATED WITH A STRONG UPPER LEVEL WAVE MOVING THROUGH THE
AREA...COUPLED WITH THE LEFT EXIT REGION OF A JET AND DECENT UPPER
DIVERGENCE...WILL AID IN THE DEVELOPMENT OF SNOW BANDS AND HEAVY
SNOW ACROSS THE REGION FOR MOST OF THE EVENING.  MODERATE TO HEAVY
SNOWFALL WILL BE THE MAJOR PRECIPITATION TYPE ACROSS THE NORTHERN
PART OF THE REGION.  ACCORDING TO THE GFS AND NAM...WHICH ARE IN
FAIRLY GOOD AGREEMENT...SOME LOCALLY TRANSIENT SLEET AND FREEZING
RAIN...ALONG WITH SNOW...WILL OCCUR IN THE SOUTHERN PART OF THE
REGION.  THE STORM SYSTEM WILL CONTINUE TO MOVE EASTWARD THROUGH THE
PERIOD AND PRECIPITATION IS EXPECTED TO DECREASE TOWARDS FRIDAY
MORNING.

..LEVIT.. 12/30/2005

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

ATTN...WFO...MPX...FGF...ABR...BIS...

46900166 47170041 47209857 47209689 47049542 46209494
45659583 45369703 45269839 45300057 45680171 

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