[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 201938
SWODY1
SPC AC 201937

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0237 PM CDT FRI OCT 20 2006

VALID 202000Z - 211200Z

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PORTIONS OF CNTRL/SRN
NEW ENGLAND...

19Z SFC ANALYSIS PLACES A 987 MB LOW VCNTY KPSF WITH A WARM FRONT
LOCATED ACROSS SRN VT AND NH INTO DOWNEAST MAINE.  TO THE S...A
SHARP COLD FRONT WAS SWEEPING EWD WITH AN ASSOCD LINE OF CONVECTION.

THE LOW WILL CONTINUE TO DEEPEN THIS EVENING WHILE MOVING NEWD INTO
CNTRL MAINE.  THE TRAILING FRONT WILL MOVE ACROSS CNTRL/SRN NEW
ENGLAND AND OFFSHORE LATER THIS AFTERNOON.

STRONGLY FORCED LOW-TOPPED SQUALL LINE WAS MOVING ENEWD AT 40 KTS
AND IS EXTRAPOLATED TO CNTRL MASS...CNTRL CT AND ERN LONG ISLAND BY
21Z AND INTO SERN MASS/KBOS BETWEEN 22-23Z.  RECENT SOUNDING FROM A
DESCENDING AIRCRAFT INTO KPHL JUST BEHIND THE SQUALL LINE COUPLED
WITH KDIX 88D VWP SUGGEST THAT 50 KT WINDS WERE DOWN TO AROUND 1 KM
AGL.  GIVEN STRENGTHENING OF THE ATTENDANT UPPER SYSTEM AND
CORRESPONDING ACCELERATION OF WIND FIELDS...CONVECTION WILL CONTINUE
TO HAVE THE POTENTIAL FOR DAMAGING WIND GUSTS THROUGHOUT CNTRL/SRN
NEW ENGLAND LATE AFTN/EARLY EVE...PARTICULARLY AT HIGHER ELEVATIONS.

..RACY.. 10/20/2006