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SPC Severe Thunderstorm Watch 114

WW 114 SEVERE TSTM IL IN LM 041535Z – 042000Z


URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 114
NWS Storm Prediction Center Norman OK
1035 AM CDT Tue Apr 4 2023

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Northern Illinois
  Northwest Indiana
  Lake Michigan

* Effective this Tuesday morning and afternoon from 1035 AM until
  300 PM CDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 2
    inches in diameter likely
  Scattered damaging wind gusts to 70 mph likely
  A tornado or two possible

SUMMARY...A large thunderstorm complex over northwest Illinois may
persist for a few hours and track eastward across the watch area. 
If the storm maintains intensity, large hail and damaging wind gusts
will be possible.

The severe thunderstorm watch area is approximately along and 30
statute miles north and south of a line from 60 miles west northwest
of Marseilles IL to 80 miles east of Marseilles IL. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU4).

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 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27035.

...Hart

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