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