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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 299
NWS Storm Prediction Center Norman OK
1240 PM EDT Tue May 30 2017
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Western New York
Central and Western Pennsylvania
* Effective this Tuesday afternoon and evening from 1240 PM until
800 PM EDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Scattered thunderstorms will continue to develop across
the watch area this afternoon and early evening, posing a risk of
hail and damaging winds in the strongest cells.
The severe thunderstorm watch area is approximately along and 75
statute miles east and west of a line from 45 miles south southwest
of Altoona PA to 55 miles north of Syracuse NY. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
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
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector