

763 

WWUS20 KWNS 151855

SEL0

SPC WW 151855

NYZ000-PAZ000-WVZ000-LEZ000-LOZ000-152300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 510

NWS Storm Prediction Center Norman OK

155 PM EST Sun Nov 15 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Western New York

  Western Pennsylvania

  Northern West Virginia Panhandle

  Lake Erie

  Lake Ontario



* Effective this Sunday afternoon and evening from 155 PM until

  600 PM EST.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible



SUMMARY...Line of low-topped thunderstorms with strong to severe

wind gusts should continue east-northeast from eastern Ohio across

western portions of Pennsylvania and New York through early evening.

Overall intensity should gradually diminish after sunset, but the

risk for damaging winds may persist.



The severe thunderstorm watch area is approximately along and 65

statute miles north and south of a line from 15 miles south of

Franklin PA to 45 miles southeast of Rochester NY. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU0).



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 509...



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

0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 300. Mean storm motion vector

25050.



...Grams

