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URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 536
NWS Storm Prediction Center Norman OK
610 PM CDT Sun Sep 18 2022

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Central and southern Iowa
  Extreme northwest Illinois
  Far northern Missouri

* Effective this Sunday night from 610 PM until Midnight CDT.

* Primary threats include...
  A few tornadoes possible
  Scattered damaging winds and isolated significant gusts to 75
    mph likely
  Scattered large hail and isolated very large hail events to 3
    inches in diameter likely

SUMMARY...Thunderstorm development is expected this evening from
central/southern Iowa into southeast Iowa, and storms will move
east-southeastward into tonight.  The environment favors supercells
capable of producing very large hail to 3 inches in diameter,
outflow gusts to 75 mph, and a few tornadoes.  Later tonight,
upscale growth into a cluster or two may occur, with a continued
damaging wind and large hail threat.

The tornado watch area is approximately along and 55 statute miles
north and south of a line from 50 miles west southwest of Des Moines
IA to 25 miles east northeast of Burlington IA. For a co*plete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).

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 3 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 29030.

...Thompson