[SWODY1] SWODY1

[SWODY1 at goshenarc.org]

ACUS01 KWNS 291927
SWODY1
SPC AC 291925

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0125 PM CST WED DEC 29 2004

VALID 292000Z - 301200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 30 S ONP 55 N LMT 55
S 4LW 20 WSW RNO 30 N MER 25 SSE MRY.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 30 W BKX 55 ENE ATY
25 W EAU 30 NE LNR 40 NNE MLI 20 WSW BRL 25 E LWD 30 ESE OMA 30 ESE
YKN 30 W BKX.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 15 NE SGU 45 N BCE 15
WNW U28 25 WNW GJT 25 NW GUC 35 SSE GUC 45 ESE DRO 25 NNW GNT 55 SSW
GUP 45 ESE PRC 40 WNW PRC 55 NNE IGM 15 NE SGU.

...NO SVR TSTM AREAS FORECAST...

...FOUR CORNERS REGION...
A MID-LEVEL SHORTWAVE TROUGH EJECTING FROM THE WEAKENING UPPER LOW
APPEARS TO BE MOVING INTO NWRN AZ/SWRN UT PER WATER VAPOR IMAGERY. 
THIS IMPULSE IS EXPECTED TO MOVE RAPIDLY NEWD TO THE CNTRL PLAINS BY
12Z.  LARGE SCALE VERTICAL MOTION/STEEP LAPSE RATES ASSOCIATED WITH
THIS DISTURBANCE WILL QUICKLY WANE OVER THE SWRN U.S. THROUGH
EVENING.  UNTIL THEN...ISOLD LIGHTNING STRIKES WILL BE
POSSIBLE...PRIMARILY NRN AZ INTO SERN UT.  MEAGER INSTABILITY WILL
PRECLUDE SEVERE TSTMS...THOUGH THE AMBIENT WIND FIELDS WILL ALREADY
BE QUITE STRONG.

...CNTRL PAC COAST...
CORE OF THE THERMAL TROUGH ALOFT /H5 TEMPERATURES NEAR MINUS 28C/
WILL ROTATE INLAND CNTRL PAC COAST THROUGH THE REMAINDER OF THE
AFTERNOON/EARLY EVENING.  CONSIDERABLE CONVECTION EXISTS ACROSS
CNTRL/NRN CA AND GIVEN STEEP MIDLEVEL LAPSE RATES...THERMODYNAMIC
SET-UP APPEARS FAVORABLE FOR A FEW LIGHTNING STRIKES.

...UPPER MS VLY...
AS THE NOCTURNAL LLJ INCREASES OVERNIGHT AHEAD OF AN APPROACHING
UPPER LEVEL TROUGH...STRONG LOW-MIDLEVEL THETA-E ADVECTION WILL
COMMENCE ACROSS THE UPPER MS VLY REGION.  ELEVATED INSTABILITY MAY
BE SUFFICIENT FOR ISOLD LIGHTNING VERY LATE TONIGHT.

..RACY.. 12/29/2004

...NOTICE...
FOR USERS DECODING THE POINTS PARAGRAPH HEREIN...LATITUDE AND
LONGITUDE POINTS FOR THE CATEGORICAL AND PROBABILISTIC OUTLOOK
GRAPHICS ALSO ARE LOCATED IN A SEPARATE PRODUCT UNDER THE WMO
HEADINGS WUUS01 PTSDY1...WUUS02 PTSDY2...AND WUUS03 PTSDY3.  THE
INCLUSION OF POINTS IN THIS PRODUCT WILL EVENTUALLY BE DISCONTINUED.