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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 518
NWS Storm Prediction Center Norman OK
235 PM CST Mon Dec 4 2017
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Extreme west central Illinois
Extreme southeast Kansas
Much of southwest, central and northeast Missouri
* Effective this Monday afternoon and evening from 235 PM until
900 PM CST.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms are beginning to form along a cold front,
and these storms will increase in coverage and strengthen gradually
through the afternoon/evening while spreading eastward. Embedded
supercells and/or bowing segments could produce damaging winds, as
well as a brief tornado and marginally severe hail.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 25 miles east northeast
of Kirksville MO to 25 miles southwest of Springfield MO. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU8).
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
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