

597 

WWUS20 KWNS 311845

SEL0

SPC WW 311845

INZ000-KYZ000-010000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 450

NWS Storm Prediction Center Norman OK

1245 PM CST Mon Dec 31 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Far Southern Indiana

  Western and central Kentucky



* Effective this Monday afternoon and evening from 1245 PM until

  600 PM CST.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...A fast-northeastward-moving squall line will pose a risk

for isolated damaging wind gusts this afternoon. Additionally,

adequate low-level moisture and very strong low-level shear could

support a brief tornado.



The severe thunderstorm watch area is approximately along and 55

statute miles east and west of a line from 35 miles northwest of

Louisville KY to 20 miles east southeast of Fort Campbell 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 449...



AVIATION...A few severe thunderstorms with hail surface and aloft to

0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 450. Mean storm motion vector

23045.



...Guyer

