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138 

WWUS20 KWNS 281729

SEL2

SPC WW 281729

CTZ000-MAZ000-NJZ000-NYZ000-PAZ000-RIZ000-CWZ000-290000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 312

NWS Storm Prediction Center Norman OK

130 PM EDT Sun Jun 28 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Connecticut

  Massachusetts

  Northern New Jersey

  Southeastern New York

  Extreme northeastern Pennsylvania

  Rhode Island

  Coastal Waters



* Effective this Sunday afternoon and evening from 130 PM until

  800 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1 inch in diameter possible



SUMMARY...Scattered thunderstorms will persist and spread

east-southeastward from southeastern New York and northeastern

Pennsylvania to southern New England through the afternoon.  The

strongest storms could have some transient supercell structures,

with multicell clusters the primary storm mode.  Occasional damaging

gusts and isolated large hail will be the main threats.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 30 miles west of

Monticello NY to 20 miles east northeast of Providence RI. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU2).



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 inch. Extreme turbulence and surface wind gusts to 60 knots. A few

cumulonimbi with maximum tops to 500. Mean storm motion vector

28020.



...Thompson

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