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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 538
NWS Storm Prediction Center Norman OK
215 PM EDT Mon Jul 22 2019
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
District Of Columbia
Southern New York
* Effective this Monday afternoon and evening from 215 PM until
1000 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...Scattered thunderstorms will continue to develop and
intensify within a moist/moderately unstable air mass to the east of
a cold front. Winds aloft should be sufficient for organized
multicells, with a couple of transient supercells also possible.
Damaging winds are the most likely risk as storms progress
east-northeastward through late afternoon and evening.
The severe thunderstorm watch area is approximately along and 70
statute miles north and south of a line from 15 miles north
northwest of Charlottesville VA to 20 miles south southeast of
Providence RI. For a complete depiction of the watch see the
associated watch outline update (WOUS64 KWNS WOU8).
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 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector