[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 250552
SWOMCD
SPC MCD 250551 
TXZ000-251045-

MESOSCALE DISCUSSION 2574
NWS STORM PREDICTION CENTER NORMAN OK
1151 PM CST FRI DEC 24 2004

AREAS AFFECTED...SRN TX THROUGH THE COASTAL BEND

CONCERNING...HEAVY SNOW 

VALID 250551Z - 251045Z

...HEAVY SNOW RATES OF 1-2"/HR WILL CONTINUE THROUGH AT LEAST 09Z
WITH ADDITIONAL SNOW ACCUMULATIONS OVERNIGHT...

NARROW AXIS OF HEAVY SNOW HAS DEVELOPED FROM AROUND BAY CITY SW TO
VICTORIA. RECENT RADAR TRENDS SUGGEST THIS BAND WILL LIKELY CONTINUE
PRODUCING MOD/HEAVY SNOW BEFORE DIMINISHING BETWEEN 09-12Z. UPPER
LOW CIRCULATION NOTED IN WATER VAPOR IMAGERY IS ROUGHLY 120 NM WSW
LRD AND WILL MOVE TO NEAR CRP BY 12Z. THIS WILL PLACE THE
MIDDLE/UPPER COASTAL PLAIN IN THE STRONGEST PVA ZONE
AND...CORRESPONDINGLY...THE AREA WITH THE STRONGEST UVV.
THERMODYNAMIC PROFILES SUPPORT HEAVY SNOW RATES GIVEN A DEEP
DENDRITIC ZONE AND STRONG DYNAMICAL LIFT.

FARTHER SOUTH...MULTIPLE TEMPERATURE INVERSIONS PRESENT ON THE
FORECAST SOUNDINGS FOR BRO/PIL WILL RESULT IN A MIX OF SLEET AND
SNOW.

..TAYLOR.. 12/25/2004

...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...HGX...CRP...EWX...BRO...

29459635 29039739 28019879 26219850 25919721 27259742
27949702 28609597 28889534 29189484 29499502 29709522 

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