

441 

WWUS20 KWNS 211750

SEL9

SPC WW 211750

CTZ000-MAZ000-MEZ000-NHZ000-NJZ000-NYZ000-RIZ000-VTZ000-CWZ000-22010

0-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 609

NWS Storm Prediction Center Norman OK

150 PM EDT Wed Aug 21 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Connecticut

  Massachusetts

  Far southern Maine

  Southern New Hampshire

  Northern New Jersey

  Southeast New York

  Rhode Island

  Southern Vermont

  Coastal Waters



* Effective this Wednesday afternoon and evening from 150 PM

  until 900 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Storms will continue to develop and intensify particularly

across far eastern New York and southern New England, near and south

of a warm front that will continue to spread slowly northward. Some

supercells with a hail/tornado risk aside from damaging winds are

most probable across southern New England, with damaging winds

otherwise expected with the strongest storms.



The severe thunderstorm watch area is approximately along and 85

statute miles north and south of a line from 30 miles west northwest

of Poughkeepsie NY to 40 miles east of Boston MA. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU9).



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.



&&



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 500. Mean storm motion vector

24025.



...Guyer

