SPC Severe Thunderstorm Watch 499



WW 499 SEVERE TSTM NY VT 101810Z – 110100Z

WW 0499 Image


URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 499
NWS Storm Prediction Center Norman OK
210 PM EDT Sat Oct 10 2020

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Northern New York
  Vermont

* Effective this Saturday afternoon and evening from 210 PM until
  900 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 thunderstorm development is expected this
afternoon in advance of a cold front approaching the Saint Lawrence
Valley.  A mix of supercells and line segments is expected, with a
primary threat for damaging winds before the storms weaken by late
evening.

The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 45 miles west southwest
of Saranac Lake NY to 30 miles east of Montpelier VT. 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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 498...

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 450. Mean storm motion vector
27050.

...Thompson

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