urgent - immediate broadcast requested Tornado Watch number 277 NWS Storm Prediction Center Norman OK 1230 PM EDT Wed may 16 2007
The NWS Storm Prediction Center has issued a Tornado Watch for portions of
Connecticut western and central Massachusetts far southern New Hampshire far southern New York northern Rhode Island
Effective this Wednesday afternoon and evening from 1230 PM until 600 PM EDT.
Tornadoes... hail to 1.5 inches in diameter... thunderstorm wind gusts to 70 mph... and dangerous lightning are possible in these areas.
The Tornado Watch area is approximately along and 45 statute miles north and south of a line from 30 miles west of Poughkeepsie New York to 20 miles east northeast of Worcester Massachusetts. For a complete depiction of the watch see the associated watch outline update (wous64 kwns wou7).
Remember... a Tornado Watch means conditions are favorable for tornadoes and 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.
Discussion... severe threat is increasing within this small area early this afternoon... where strong heating and modest instability is already occurring. If storms can remain discrete... shear values are more than adequate for supercells and possibly tornadoes... especially into MA/nrn CT. In addition... damaging winds and isolated large hail should accompany the stronger storms.
Aviation... tornadoes and 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 500. Mean storm motion vector 26035.