Updated 12:06PM CDT…

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 215 AM CDT...

For the following areas...

  Nearshore Waters from Winthrop Harbor to Calumet Harbor...

  Open Waters from Winthrop Harbor to Michigan City out to Mid
Lake...

At 1206 AM CDT, a severe thunderstorm was located 9 nm northeast of
Harrison-Dever Crib, moving east at 40 knots.

HAZARD...Wind gusts in excess of 50 knots.

SOURCE...Radar indicated.

IMPACT...Boats could suffer significant structural damage in high
         winds. Small craft could capsize in suddenly higher waves.

Locations impacted include...
Harrison-Dever Crib, Calumet Harbor, Wilmette Harbor, Montrose
Harbor, Monroe Harbor, Belmont Harbor, Jackson Park Harbor, Diversy
Harbor and DuSable Harbor.
___________________________________________________________________

The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... * Until 215 AM CDT. * At 1119 PM CDT, numerous severe thunderstorm were located over northern Illinois all moving east-southeast at 35 kt. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar indicated. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Locations impacted include... Harrison-Dever Crib, Calumet Harbor, Wilmette Harbor, Montrose Harbor, Monroe Harbor, Belmont Harbor, Jackson Park Harbor, Diversy Harbor and DuSable Harbor.