SWODY1
SPC AC 280446
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1146 PM CDT MON OCT 27 2008
VALID 281200Z - 291200Z
...NO SVR TSTM AREAS FORECAST...
...NEW ENGLAND...
A CLOSED LOW WILL BE FORMING BY EARLY DAY 1 ACROSS THE MID ATLANTIC
REGION AS ASSOCIATED SHARP UPPER LONG WAVE TROUGH CONTINUES TO TAKE
ON A NEGATIVE TILT. FURTHER DEEPENING OF THE CLOSED LOW IS EXPECTED
TODAY AS IT TRACKS NWD THROUGH NEW ENGLAND TOWARD SRN QUEBEC
RESULTING IN VIGOROUS LARGE SCALE FORCING FOR ASCENT. AT 12Z...
RAPID CYCLOGENESIS IS EXPECTED TO BE UNDERWAY OFF THE MID ATLANTIC
COAST IN RESPONSE TO STRONG HEIGHT FALLS /210-240 METERS/. MODELS
SUGGEST THE PRIMARY LOW SHOULD OCCLUDE AS IT TRACKS NWD ACROSS LONG
ISLAND INTO CT...WHILE A SECONDARY LOW FORMS BY MID-LATE MORNING S
OF DUKES/NANTUCKET COUNTIES MA...AND MOVES QUICKLY NWD ACROSS CAPE
COD REACHING WRN ME/NH BY LATE THIS AFTERNOON.
FORECAST SOUNDINGS CONTINUE TO INDICATE LIKELIHOOD FOR SUFFICIENT
THERMAL BUOYANCY /ROOTED AROUND 850 TO 700 MB/ TO LOFT PARCELS INTO
THE ICING RANGE. THERE ARE EXPECTED TO BE SEVERAL SPORADIC BURSTS
OF LIGHTNING PRODUCTION THIS FORECAST PERIOD...SPREADING ACROSS LONG
ISLAND TO SERN MA THIS MORNING...AND THEN NWD THROUGH ERN MA TO
VT/NH AND ME THIS AFTERNOON/EVENING.
..PETERS/JEWELL.. 10/28/2008
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.
No comments:
Post a Comment