

498 

WWUS20 KWNS 242042

SEL7

SPC WW 242042

INZ000-MIZ000-OHZ000-250300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 37

NWS Storm Prediction Center Norman OK

345 PM EST Fri Feb 24 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Much Of Indiana

  Southern Lower Michigan

  Northwest Ohio



* Effective this Friday afternoon and evening from 345 PM until

  1000 PM EST.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Thunderstorms are developing over western Indiana along a

cold front.  These storms will spread across the watch area this

afternoon and evening, posing a threat of locally damaging winds and

hail.



The severe thunderstorm watch area is approximately along and 60

statute miles east and west of a line from 20 miles north northeast

of Flint MI to 35 miles southwest of Bloomington IN. 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.



&&



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 450. Mean storm motion vector

24035.



...Hart

