[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 080641
SWOMCD
SPC MCD 080641 
OHZ000-MIZ000-INZ000-081115-

MESOSCALE DISCUSSION 0046
NWS STORM PREDICTION CENTER NORMAN OK
1241 AM CST SAT JAN 08 2005

AREAS AFFECTED...NRN IND/NRN OH AND FAR SERN MI

CONCERNING...HEAVY SNOW 

VALID 080641Z - 081115Z

HVY SNOW WITH HOURLY ACCUMULATION RATES AROUND 1 INCH ONGOING OVER
FAR ECENTRAL IL...NRN/CENTRAL IND WILL DEVELOP NEWD INTO FAR SERN
MI/NRN OH OVER THE NEXT 2-5 HOURS. HEAVY SNOW WILL DIMINISH OVER NRN
IND THROUGH 10Z.

SAT IMAGERY SHOWS A STRONG MID LEVEL DRY SLOT ROTATING NEWD ACROSS
THE LOWER OHIO VALLEY /EVIDENT BY RECENT LIGHTNING STRIKES OVER SRN
OH/ AIDING IN AN OCCLUSION PROCESS FOR THE MID LEVEL CYCLONE MOVING
ACROSS THE MID MS VALLEY. AS THIS DRY SLOT DEVELOPMENT/OCCLUSION
CONTINUES TO OCCUR OVER THE NEXT FEW HOURS...RESULTANT MID LEVEL
FRONTOGENETIC FORCING /EVIDENT BY RAPIDLY COOLING CLOUD TOPS OVER
THE LAST  FEW HOURS/ WILL CONTINUE TO SUPPORT WSW-ENE ORIENTED SNOW
BANDS FROM NRN IND INTO FAR SERN MI/NRN OH THROUGH THE OVERNIGHT
HOURS. LOCATION OF STRONGEST FRONTOGENETIC FORCING IN THE 700-600 MB
LAYER WHICH IS COINCIDENT WITH A THERMODYNAMIC PROFILE OF -14 TO -18
DEG C /FAVORABLE FOR DENDRITIC SNOW GROWTH/ WILL CONTINUE TO FAVOR
THE GREATEST POTENTIAL FOR HEAVY SNOWFALL ROUGHLY 20 MILES EITHER
SIDE OF AN AXIS FROM HUF TO FDY TO CLE THROUGH 12Z.

..CROSBIE.. 01/08/2005

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

...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...CLE...ILN...DTX...IWX...IND...ILX...

42258304 41408554 40168754 39218747 39838597 40308457
40868264 41688104 

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