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WWUS20 KWNS 121738

SEL2

SPC WW 121738

MAZ000-NYZ000-PAZ000-VTZ000-130000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 432

NWS Storm Prediction Center Norman OK

140 PM EDT Thu Aug 12 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Extreme western Massachusetts

  Central into east central New York

  Northeastern Pennsylvania

  Extreme southern Vermont



* Effective this Thursday afternoon and evening from 140 PM until

  800 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Isolated large hail events to 1 inch in diameter possible



SUMMARY...Thunderstorm development is expected early this afternoon

from central into east central New York, and storms will move

eastward through the afternoon.  The storm environment favors storms

clusters capable of producing damaging outflow winds of 60-70 mph

and isolated large hail near 1 inch diameter.



The severe thunderstorm watch area is approximately along and 50

statute miles north and south of a line from 40 miles west northwest

of Wilkesbarre PA to 20 miles southeast of Glens Falls NY. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU2).



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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 431...



AVIATION...A few severe thunderstorms with hail surface and aloft to

1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few

cumulonimbi with maximum tops to 550. Mean storm motion vector

26030.



...Thompson

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