The National Weather Service has issued a Severe Thunderstorm Watch for most of Southern New England until 9 pm Monday. All of Southern New England except for Cape Cod, Martha’s Vineyard and Nantucket is included in the watch area. Conditions are favorable for strong to severe thunderstorms to develop in advance of a cold front from late in the afternoon through the mid-evening hours. The primary severe weather threats are strong, damaging straight-line winds and the potential for large hail. Be prepared to take cover if these severe storms develop.
A Severe Thunderstorm Watch does not mean that a severe thunderstorm is imminent, but, rather, that conditions are favorable for storms to develop and some may become severe. See additional information below from the National Weather Service Storm Prediction Center.
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 321
NWS STORM PREDICTION CENTER NORMAN OK
115 PM EDT MON JUN 17 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CONNECTICUT
MASSACHUSETTS
SOUTHERN NEW HAMPSHIRE
EASTERN NEW YORK
RHODE ISLAND
SOUTHERN VERMONT
COASTAL WATERS
* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 115 PM UNTIL
900 PM EDT.
* PRIMARY THREATS INCLUDE...
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
SEVERAL LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES NORTH
NORTHWEST OF MONTICELLO NEW YORK TO 15 MILES EAST OF BOSTON
MASSACHUSETTS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
&&
DISCUSSION...THUNDERSTORMS WILL CONTINUE TO INCREASE AND INTENSIFY
THIS AFTERNOON AHEAD OF A COLD FRONT. WHILE MOISTURE/INSTABILITY IS
RELATIVELY MODEST...STRONG LOW TO MID-LEVEL WESTERLY WINDS WILL
ALLOW FOR THE MATURATION OF EAST-SOUTHEASTWARD MOVING MULTICELLULAR
LINE SEGMENTS/SMALL BOWS CAPABLE OF WIND DAMAGE ASIDE FROM SEVERE
HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 28030.
...GUYER
