

640 

WWUS20 KWNS 142312

SEL8

SPC WW 142312

ARZ000-KSZ000-MOZ000-OKZ000-150600-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 508

NWS Storm Prediction Center Norman OK

515 PM CST Sat Nov 14 2020



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Northwestern and north central Arkansas

  Extreme southeastern Kansas

  Much of central and southern Missouri

  Extreme northeastern Oklahoma



* Effective this Saturday afternoon from 515 PM until Midnight

  CST.



* Primary threats include...

  A couple tornadoes possible

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1 inch in diameter possible



SUMMARY...Thunderstorm development is underway in several bands

along and ahead of a cold front and dryline from northeastern

Oklahoma and southeastern Kansas into western Missouri.  The storm

environment will favor a mix of supercells and line segments capable

of producing a couple of tornadoes, damaging gusts, and isolated

large hail.  The primary threat will be confined to the western part

of the watch through about 9 pm CST, and in the eastern parts of the

watch from 9 pm to midnight.



The tornado watch area is approximately along and 85 statute miles

east and west of a line from 45 miles northwest of Columbia MO to 40

miles southeast of Fayetteville AR. For a complete depiction of the

watch see the associated watch outline update (WOUS64 KWNS WOU8).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A Tornado Watch means conditions are favorable for

tornadoes and 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.



&&



AVIATION...Tornadoes and 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 24050.



...Thompson

