

231 

WWUS20 KWNS 100041

SEL7

SPC WW 100041

IAZ000-ILZ000-WIZ000-100700-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 167

NWS Storm Prediction Center Norman OK

745 PM CDT Sat Jun 9 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Eastern Iowa

  Northwest Illinois

  Southwest Wisconsin



* Effective this Saturday night and Sunday morning from 745 PM

  until 200 AM CDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  A tornado or two possible



SUMMARY...Scattered intense thunderstorms will continue to develop

over eastern Iowa and track eastward across the watch area this

evening.  Locally damaging winds are the main threat, with large

hail also possible in the strongest cells.



The severe thunderstorm watch area is approximately along and 50

statute miles north and south of a line from 30 miles west northwest

of Waterloo IA to 80 miles east southeast of Dubuque IA. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU7).



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 165...WW 166...



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

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

few cumulonimbi with maximum tops to 500. Mean storm motion vector

27030.



...Hart

