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WWUS20 KWNS 060233

SEL6

SPC WW 060233

IAZ000-MNZ000-060800-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 486

NWS Storm Prediction Center Norman OK

935 PM CDT Sat Sep 5 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central and Eastern Iowa

  Southern Minnesota



* Effective this Saturday night and Sunday morning from 935 PM

  until 300 AM CDT.



* Primary threats include...

  Widespread large hail and isolated very large hail events to 2.5

    inches in diameter likely

  Scattered damaging wind gusts to 70 mph possible



SUMMARY...Thunderstorms are expected to intensify this evening

across southern Minnesota and build southeastward into central and

eastern Iowa.  A few intense thunderstorms are expected, capable of

very large hail and perhaps a gusty/damaging wind threat.



The severe thunderstorm watch area is approximately along and 70

statute miles north and south of a line from 50 miles west of

Redwood Falls MN to 20 miles east northeast of Cedar Rapids IA. For

a complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU6).



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.



&&



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

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

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

30030.



...Hart

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