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URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 486

NWS Storm Prediction Center Norman OK

1135 PM EDT Wed Sep 1 2021



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Southeast Massachusetts

  Rhode Island

  Coastal Waters



* Effective this Wednesday night and Thursday morning from 1135

  PM until 700 AM EDT.



* Primary threats include...

  A couple tornadoes possible

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...A northward-advancing warm front near the coast in

addition to a moist air mass and strong low-level wind field will

support the possibility of a near-coastal/inland potential for

supercells with a brief tornado risk aside from convectively

enhanced winds.



The tornado watch area is approximately along and 40 statute miles

north and south of a line from 20 miles northwest of Block Island RI

to 25 miles east of Hyannis MA. For a complete depiction of the

watch see the associated watch outline update (WOUS64 KWNS WOU6).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A Tornado Watch means conditions are favorable for

tornadoes and 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 484...WW 485...



AVIATION...Tornadoes and a few severe thunderstorms with hail

surface and aloft to 0 inches. Extreme turbulence and surface wind

gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean

storm motion vector 23030.



...Guyer

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