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WWUS20 KWNS 272059

SEL5

SPC WW 272059

IAZ000-ILZ000-MOZ000-280400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 665

NWS Storm Prediction Center Norman OK

400 PM CDT Fri Sep 27 2019



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Southeast Iowa

  West-central and northern Illinois

  Far northeast Missouri



* Effective this Friday afternoon and evening from 400 PM until

  1100 PM CDT.



* Primary threats include...

  A few tornadoes and a couple intense tornadoes possible

  Scattered large hail and isolated very large hail events to 3

    inches in diameter likely

  Scattered damaging winds and isolated significant gusts to 75

    mph possible



SUMMARY...Scattered severe thunderstorms are expected to develop

from southeast Iowa into west-central and northern Illinois this

evening, with supercells eventually consolidating into one or more

clusters.



The tornado watch area is approximately along and 65 statute miles

north and south of a line from 60 miles west of Burlington IA to 25

miles south southeast of Marseilles IL. For a complete depiction of

the watch see the associated watch outline update (WOUS64 KWNS

WOU5).



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 664...



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

surface and aloft to 3 inches. Extreme turbulence and surface wind

gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean

storm motion vector 25040.



...Grams

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