[MCD] SWOMCD

Thu Nov 30 04:23:16 UTC 2006

ACUS11 KWNS 300425
SWOMCD
SPC MCD 300425 
TXZ000-300630-

MESOSCALE DISCUSSION 2243
NWS STORM PREDICTION CENTER NORMAN OK
1025 PM CST WED NOV 29 2006

AREAS AFFECTED...TX PANHANDLE

CONCERNING...HEAVY SNOW 

VALID 300425Z - 300630Z

SNOWFALL IS INCREASING ACROSS THE WRN TX PANHANDLE AND THIS TREND
SHOULD CONTINUE OVER THE NEXT SEVERAL HOURS. SNOWFALL RATES OF 1 TO
2 INCHES PER HOUR APPEAR LIKELY IN SOME AREAS FOR THE REMAINDER OF
THE EVENING.

LATEST WATER VAPOR IMAGERY SHOWS AN IMPRESSIVE UPPER-LOW OVER WRN
NM. THE UPPER-LOW SHOULD CONTINUE TO DEEPEN AND APPROACH WEST TX
TONIGHT. A BAND OF STRONG LARGE-SCALE ASCENT AHEAD OF THE UPPER-LOW
IS CURRENTLY MOVING ACROSS THE TX PANHANDLE AND THIS WILL SUPPORT
THE ENHANCEMENT OF SNOWFALL. MID-LEVEL FRONTOGENESIS AND STRONG
DIFFERENTIAL POSITIVE VORTICITY ADVECTION ALONG WITH STEEP MID-LEVEL
LAPSE RATES WILL ENHANCE THE SNOWFALL RATES TO 1 TO 2 INCHES PER
HOUR. EXPECT THE BAND OF SNOWFALL THAT CURRENTLY EXTENDS SWWD FROM
NEAR AMARILLO TO NEAR MULESHOE TO EXPAND AND MOVE EWD ACROSS THE
REMAINDER OF THE TX PANHANDLE. GUSTY NORTHLY WINDS WILL ALSO CREATE
BLOWING AND DRIFTING SNOW CONDITIONS.

..BROYLES.. 11/30/2006

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

ATTN...WFO...LUB...AMA...

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