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URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 42

NWS Storm Prediction Center Norman OK

300 PM CST Tue Feb 28 2017



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Southeast Iowa

  Northern and Central Illinois

  Northwest Indiana

  Northeast Missouri

  Lake Michigan



* Effective this Tuesday afternoon and evening from 300 PM until

  1000 PM CST.



* Primary threats include...

  A few tornadoes possible

  Scattered large hail likely with isolated very large hail events

    to 3 inches in diameter possible

  Scattered damaging wind gusts to 70 mph possible



SUMMARY...Scattered thunderstorms are expected to form this

afternoon and early evening across the watch area.  Conditions

appear favorable for large hail in the stronger cells, along with

the risk for isolated tornadoes.



The tornado watch area is approximately along and 120 statute miles

north and south of a line from 35 miles south of Ottumwa IA to 30

miles north of Lafayette IN. For a complete depiction of the watch

see the associated watch outline update (WOUS64 KWNS WOU2).



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 41...



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

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

gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean

storm motion vector 25035.



...Hart

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