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WWUS20 KWNS 302250

SEL1

SPC WW 302250

IAZ000-ILZ000-010200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 471

NWS Storm Prediction Center Norman OK

550 PM CDT Sun Jun 30 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southeast Iowa

  Northwest Illinois



* Effective this Sunday afternoon and evening from 550 PM until

  900 PM CDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...A line of severe storms with a history of damaging winds

should persist through this evening near the Mississippi River while

moving generally to the south.  Prior to the storms weakening after

dark, the bowing segment will remain capable of producing additional

damaging gusts and isolated large hail.



The severe thunderstorm watch area is approximately along and 40

statute miles north and south of a line from 30 miles south of Cedar

Rapids IA to 30 miles east of Moline IL. For a complete depiction of

the watch see the associated watch outline update (WOUS64 KWNS

WOU1).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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

tornadoes.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 466...WW 468...WW

469...WW 470...



AVIATION...A few severe thunderstorms with hail surface and aloft to

1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 550. Mean storm motion vector

34035.



...Thompson

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