[SWODY2] SWODY2

[SWODY2 at goshenarc.org]

ACUS02 KWNS 171727
SWODY2
SPC AC 171726

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1126 AM CST THU FEB 17 2005

VALID 181200Z - 191200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 30 W UKI 35 NE SAC 45
NNE BIH 30 SSE CDC 25 NNW DRO 10 W 4SL 80 NNW SVC 25 SSE SAD 20 SW
FHU.

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
BREAKDOWN OF ERN PACIFIC REX BLOCK WILL OCCUR THROUGH THE DAY 2
PERIOD LARGELY IN PART TO WEAKENING OF MID AND UPPER-LEVEL LOW OFF
THE CA COAST. AS THIS OCCURS...SRN BRANCH SHORTWAVE WILL EJECT NEWD
FROM BASE OF THIS LOW INTO THE DESERT SW WHILE STRONG NRN BRANCH
FEATURE RETROGRADES SWWD OVER BRITISH COLUMBIA. FARTHER E...
DOWNSTREAM HEIGHT RISES ARE FORECAST FROM THE NRN PLAINS TO THE
MIDDLE ATLANTIC COAST WITH FAST WNWLY FLOW PERSISTING ACROSS THE ERN
THIRD OF THE NATION. IN THE LOW-LEVELS...LARGE SURFACE HIGH WILL
BUILD SEWD FROM THE UPPER MIDWEST INTO THE SERN STATES WHILE LEE
CYCLOGENESIS COMMENCES OVER THE CNTRL HIGH PLAINS IN RESPONSE TO
INCREASINGLY ZONAL MID-LEVEL FLOW OVER THE CNTRL/SRN ROCKIES.

...CA INTO THE SWRN DESERTS...
WHILE ANTECEDENT CLOUDS AND PRECIPITATION WILL TEND TO LIMIT AIR
MASS DESTABILIZATION ACROSS THE FORECAST AREA...IT APPEARS THAT A
FEW TSTM CLUSTERS WILL DEVELOP AHEAD OF MAIN SHORTWAVE TROUGH WHICH
WILL MOVE ACROSS SRN CA ON FRIDAY AND INTO AZ FRIDAY NIGHT. OTHER
MORE ISOLATED TSTMS WILL ALSO BE POSSIBLE FARTHER N INTO THE SIERRA
NEVADA RANGE ON CYCLONIC SIDE OF MID/UPPER-LEVEL JET AXIS WHERE
LAPSE RATES WILL BE SLIGHTLY STEEPER.

..MEAD.. 02/17/2005

...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.