[SWODY2] SWODY2

[SWODY2 at goshenarc.org]

ACUS02 KWNS 300625
SWODY2
SPC AC 300624

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1224 AM CST THU DEC 30 2004

VALID 311200Z - 011200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 35 SSE DTW 25 NW TOL
15 SE GRR 30 WSW HTL 15 ESE APN.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 50 E GAG 50 SSE DDC
25 S RSL 20 E SLN 10 E UMN 55 S HRO 25 ENE PGO 35 NW MLC 50 E GAG.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 10 S ONP 25 ENE CEC
45 ENE UKI 35 WNW MER 15 NW PRB 30 SSW PRB.

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
PROGRESSIVE LARGE-SCALE PATTERN IS FORECAST THROUGH THE DAY 2 PERIOD
WITH SHORTWAVE TROUGHS TRANSLATING FROM THE GREAT LAKES REGION INTO
THE CANADIAN MARITIMES...AND FROM THE CNTRL CA COAST INTO THE NRN
AND CNTRL ROCKIES. IN THE LOW-LEVELS...COLD FRONT WILL PUSH EWD
ACROSS THE NERN STATES WITH WWD EXTENSION OF BOUNDARY REMAINING 
QUASI-STATIONARY OVER THE CNTRL PLAINS AND ANCHORED TO LOW PRESSURE
OVER ERN CO. IN THE W...PACIFIC COLD FRONT WILL MOVE EWD THROUGH THE
GREAT BASIN AND DESERT SW.

...CNTRL GREAT LAKES...
MODERATELY STEEP MID-LEVEL LAPSE RATES /7-7.5 C/KM/ COUPLED WITH
FORCING FOR ASCENT ASSOCIATED WITH SHORTWAVE TROUGH MOVING THROUGH
THE REGION MAY BE SUFFICIENT TO SUPPORT A FEW ELEVATED TSTMS ON
FRIDAY MORNING OVER PORTIONS OF LOWER MI. ANY ACTIVITY THAT DEVELOPS
WILL QUICKLY MOVE INTO SERN ONTARIO BY AFTERNOON.

...KS/OK/MO/AR...
SLY LOW-LEVEL JET IS FORECAST TO DEVELOP FRIDAY NIGHT ACROSS THE SRN
PLAINS IN RESPONSE TO UPSTREAM SHORTWAVE TROUGH MOVING INTO THE
ROCKIES. ISENTROPIC ASCENT OF RETURNING...MODIFIED GULF AIR MASS
ALONG LLJ AXIS WILL CONTRIBUTE TO WEAK ELEVATED INSTABILITY AND
POTENTIAL FOR A FEW THUNDERSTORMS LATE IN THE PERIOD...MAINLY
ALONG/S OF FRONTAL BOUNDARY.

...ORE COAST SWD TO CNTRL CA COAST...
COLD MID-LEVEL TEMPERATURES OF -28 TO -30 C AT 500 MB AND RESULTANT
STEEP LAPSE RATES ON CYCLONIC SIDE OF MID/UPPER-LEVEL JET AXIS MAY
SUPPORT THE DEVELOPMENT OF A FEW TSTMS EARLY IN THE FORECAST ALONG
THE COASTAL RANGES. THUNDER POTENTIAL SHOULD DIMINISH FRIDAY NIGHT
OWING TO HEIGHT RISES AND WEAKENING LAPSE RATES WITH PASSAGE OF
MID-LEVEL TROUGH TO THE E.

..MEAD.. 12/30/2004

...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.