

870 

WWUS20 KWNS 131855

SEL3

SPC WW 131855

NJZ000-PAZ000-140100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 413

NWS Storm Prediction Center Norman OK

255 PM EDT Thu Jul 13 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  New Jersey

  Eastern Pennsylvania



* Effective this Thursday afternoon and evening from 255 PM until

  900 PM EDT.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...Thunderstorms will gradually increase in areal coverage

and intensity over eastern Pennsylvania over the next few hours.

This activity will spread across much of New Jersey by early evening

with a threat of damaging winds.



The severe thunderstorm watch area is approximately along and 65

statute miles east and west of a line from 45 miles southeast of

Harrisburg PA to 50 miles north northeast of Allentown PA. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU3).



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 412...



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 500. Mean storm motion vector

28030.



...Darrow

