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URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 311

NWS Storm Prediction Center Norman OK

635 PM CDT Thu Jun 24 2021



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Southern Iowa

  Northern Missouri



* Effective this Thursday evening from 635 PM until 1000 PM CDT.



* Primary threats include...

  A couple tornadoes possible

  Scattered damaging winds likely with isolated significant gusts

    to 80 mph possible

  Isolated very large hail events to 2 inches in diameter possible



SUMMARY...A couple supercells may be sustained across southern Iowa

and northern Missouri this evening, before growing upscale into a

broader cluster towards late evening.



The tornado watch area is approximately along and 55 statute miles

north and south of a line from 55 miles west southwest of Lamoni IA

to 20 miles north northeast of Kirksville MO. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU1).



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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 309...WW 310...



AVIATION...Tornadoes and a few severe thunderstorms with hail

surface and aloft to 2 inches. Extreme turbulence and surface wind

gusts to 70 knots. A few cumulonimbi with maximum tops to 550. Mean

storm motion vector 27030.



...Grams

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