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SPC Severe Thunderstorm Watch 420

WW 420 SEVERE TSTM IL IN KY OH 292015Z – 300100Z

WW 0420 Image


URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 420
NWS Storm Prediction Center Norman OK
415 PM EDT Thu Jun 29 2023

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Southern Illinois
  Southern Indiana
  Kentucky
  Southwest Ohio

* Effective this Thursday afternoon and evening from 415 PM until
  900 PM EDT.

* Primary threats include...
  Scattered damaging winds likely with isolated significant gusts
    to 75 mph possible
  Isolated large hail events to 1.5 inches in diameter possible

SUMMARY...A well-organized/previously intense squall line may
largely continue to gradually weaken, but nonetheless pose a risk
for severe-caliber wind gusts this afternoon as it progresses
generally southeastward.

The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 35 miles north
northeast of Lexington KY to 10 miles west northwest of Paducah KY.
For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU0).

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 415...WW 416...WW
417...WW 418...WW 419...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 600. Mean storm motion vector
33040.

...Guyer

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