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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 519
NWS Storm Prediction Center Norman OK
335 PM CST Mon Dec 4 2017
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
* Effective this Monday afternoon and evening from 335 PM until
900 PM CST.
* Primary threats include...
Isolated damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms will increase in coverage/intensity this
afternoon into this evening as a surface cold front overtakes a
remnant dryline. The storm environment will favor some potential
for supercells the first few hours after initiation, and then growth
into a line along the cold front. Damaging winds will be the main
concern, but isolated large hail and/or a brief tornado will also be
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 5 miles northeast of
Monett MO to 40 miles southeast of Mcalester OK. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
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
OTHER WATCH INFORMATION...CONTINUE...WW 518...
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