Tornado Watch Issued for Southeastern NY State, Long Island, and Southern, CT

 

URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 457

NWS Storm Prediction Center Norman OK

315 PM EDT Thu Aug 27 2020

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 

  Connecticut

  Southeast New York and Long Island

  Southern Rhode Island

  Coastal Waters

* Effective this Thursday afternoon and evening from 315 PM until

  800 PM EDT.

* Primary threats include...

  A couple tornadoes possible

  Scattered damaging winds likely with isolated significant gusts

    to 80 mph possible

  Isolated very large hail events to 2 inches in diameter possible

SUMMARY...Cluster of embedded supercells will spread from the Lower

Hudson Valley across southwest New England with a risk for all

severe hazards.

The tornado watch area is approximately along and 40 statute miles

north and south of a line from 20 miles southwest of Poughkeepsie NY

to 30 miles southeast of Block Island RI. For a complete depiction

of the watch see the associated watch outline update (WOUS64 KWNS

WOU7).

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 454...WW 455...WW 456...

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

surface and aloft to 2 inches. Extreme turbulence and surface wind

gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean

storm motion vector 30040.

...Grams

======================================================================

710 

WWUS40 KWNS 271913

WWP7  

TORNADO WATCH PROBABILITIES FOR WT 0457

NWS STORM PREDICTION CENTER NORMAN OK

0212 PM CDT THU AUG 27 2020

WT 0457

PROBABILITY TABLE:

PROB OF 2 OR MORE TORNADOES                        :  40%

PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES       :  20%

PROB OF 10 OR MORE SEVERE WIND EVENTS              :  60%

PROB OF 1 OR MORE WIND EVENTS >= 65 KNOTS          :  50%

PROB OF 10 OR MORE SEVERE HAIL EVENTS              :  30%

PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES          :  30%

PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS :  80%

&&

ATTRIBUTE TABLE:

MAX HAIL /INCHES/                            : 2.0

MAX WIND GUSTS SURFACE /KNOTS/               : 70

MAX TOPS /X 100 FEET/                        : 500

MEAN STORM MOTION VECTOR /DEGREES AND KNOTS/ : 30040

PARTICULARLY DANGEROUS SITUATION             : NO

&&

FOR A COMPLETE GEOGRAPHICAL DEPICTION OF THE WATCH AND

WATCH EXPIRATION INFORMATION SEE WOUS64 FOR WOU7.

$$

Stay Healthy...

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