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195 

WWUS20 KWNS 132341

SEL7

SPC WW 132341

NJZ000-PAZ000-140500-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 497

NWS Storm Prediction Center Norman OK

745 PM EDT Mon Sep 13 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern New Jersey

  Eastern Pennsylvania



* Effective this Monday night and Tuesday morning from 745 PM

  until 100 AM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...A cluster of strong-severe thunderstorms upshear over

north-central/northeastern PA may produce damaging/severe gusts and

large hail as it moves across the watch area, before weakening near

the Atlantic Coast.



The severe thunderstorm watch area is approximately along and 25

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

of Allentown PA to 20 miles northeast of Trenton NJ. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU7).



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 496...



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

29035.



...Edwards

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