[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 241622
SWODY1
SPC AC 241620

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1020 AM CST THU NOV 24 2005

VALID 241630Z - 251200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 45 NNE MTC 15 SSW BAX
15 NNE MBS 30 WSW MBS AZO 15 E BEH 40 SW MKG 30 ESE MTW 50 NE GRB 20
ENE MQT 130 NE MQT ...CONT... 30 WSW MSS 10 SW SLK 45 W GFL 20 NW
ITH 45 NE BFD 25 NW PIT 20 ENE MFD 25 S DTW.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 55 S ISP 10 N PVD 65
SE PWM.

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
INTENSE POLAR VORTEX ROTATING THRU ERN U.S. LARGE SCALE TROUGH.
UPPER LOW MOVES FROM CURRENT POSITION OVER LAKE HURON EWD ACROSS ST
LAWRENCE VALLEY TONIGHT.  ASSOCIATED STRONG ARCTIC FRONT EXTENDED
FROM DEEP SURFACE LOW NRN NY SWWD TO ACROSS LOWER MO VALLEY.
SECONDARY LOW IN PROCESS OF DEVELOPING SERN NEW ENGLAND WITH CENTER
AT 16Z VICINITY KBOS. THIS LOW WILL DEEPEN RAPIDLY NWD THIS
AFTERNOON AND BECOME PRIMARY CENTER TONIGHT AS ARCTIC FRONT MOVES
ACROSS NERN STATES.

THERE WILL BE A NEAR TERM THREAT OF EMBEDDED THUNDER ACROSS SERN MA
IN STRONG WAA ASSOCIATED WITH DEVELOPING SECONDARY LOW. HOWEVER BY
MID AFTERNOON CONVECTION SHOULD BE OFFSHORE.

ISOLATED THUNDER HAS OCCURRED ASSOCIATED WITH THE FRONTAL ZONE...ERN
OH/WRN PA...BUT THIS SHOULD BE ABOUT OVER AS CONDITIONS E OF HIGHER
TERRAIN BECOME LESS FAVORABLE FOR CONVECTION AS NEW SURFACE LOW
DEVELOPS ACROSS NEW ENGLAND.

WILL CONTINUE THREAT OF ISOLATED THUNDER ASSOCIATED WITH THE STRONG
LAKE EFFECT SNOW BANDS AS POLAR VORTEX TRACKS ACROSS THE LOWER GREAT
LAKES. ANY THUNDER SHOULD END EARLY TONIGHT AS LAPSE RATES
GRADUALLY WEAKEN.

..HALES/JEWELL.. 11/24/2005

...NOTICE...
THE STATION RELATIVE POINTS IN THIS PRODUCT WILL BE
DISCONTINUED ON 14 FEBRUARY 2006 BUT WILL REMAIN AVAILABLE
IN THE FOLLOWING PRODUCTS:

   WMO HEADER:       AWIPS ID:
   WUUS01            PTSDY1
   WUUS02            PTSDY2
   WUUS03            PTSDY3

A SERVICE CHANGE NOTICE ...SCN05-39... PROVIDES DETAILS
ON THE TRANSITION. FOR ADDITIONAL DETAILS SEE THE FOLLOWING
WEB ADDRESS USING LOWER CASE LETTERS:
WWW.NWS.NOAA.GOV/OM/NOTIF.HTM