SPC Severe Thunderstorm Watch 312



WW 312 SEVERE TSTM CT MA NJ NY PA RI CW 281730Z – 290000Z

WW 0312 Image

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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