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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 384
NWS Storm Prediction Center Norman OK
305 PM EDT Tue Jul 20 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Much of New York
* Effective this Tuesday afternoon and evening from 305 PM until
1100 PM EDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A well-organized line of thunderstorms is moving across
southeast Ontario, and will affect the watch area this afternoon and
evening. Other more isolated storms will also form ahead of the
line, posing additional severe threat. Damaging winds are the main
risk, but hail is also possible.
The severe thunderstorm watch area is approximately along and 130
statute miles east and west of a line from 35 miles north of Saranac
Lake NY to 35 miles south southeast of Syracuse NY. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU4).
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
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector