SPC issues Severe Thunderstorm Watch 489 till 23:00Z for portions of BOX074
WWUS20 KWNS 301507
SEL9
SPC WW 301507
CTZ000-DEZ000-MAZ000-NJZ000-NYZ000-PAZ000-RIZ000-CWZ000-302300-
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 489
NWS Storm Prediction Center Norman OK
1110 AM EDT Sun Jun 30 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Connecticut
Northern Delaware
Massachusetts
New Jersey
Southern New York
Central and Eastern Pennsylvania
Rhode Island
Coastal Waters
* Effective this Sunday morning and evening from 1110 AM until
700 PM EDT.
* Primary threats include...
Widespread damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A mix of thunderstorm clusters and supercells should pose
a threat for numerous to widespread severe/damaging winds as they
move eastward this afternoon and evening. Peak wind gusts should
generally range around 60-70 mph, with isolated gusts perhaps
reaching up to 75 mph. Occasional hail around 1-1.5 inches in
diameter may also occur with any sustained supercell.
The severe thunderstorm watch area is approximately along and 100
statute miles east and west of a line from 35 miles north northwest
of Worcester MA to 30 miles west southwest of Philadelphia PA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).
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.
&&
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
27035.
...Gleason
Source:
SPC issues Severe Thunderstorm Watch 489 till 23:00Z for portions of BOX----------------
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