FZUS73 KLOT 181611
MWSLOT

Marine Weather Statement
National Weather Service Chicago/Romeoville
1111 AM CDT Mon May 18 2026

LMZ740>745-777-779-181715-
/O.CON.KLOT.MA.W.0032.000000T0000Z-260518T1715Z/
1111 AM CDT Mon May 18 2026

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT...

For the following areas...

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

At 1110 AM CDT, severe thunderstorms were located along a line
extending from near Ohare Airport to 31st Street Harbor to near Gary,
moving northeast 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, Wilmette Harbor, 31st Street Harbor, Monroe
Harbor, Burns Harbor, Calumet Harbor, Winthrop Harbor, Indiana
Harbor, Montrose Harbor, Waukegan Harbor, Burnham Harbor, and Hammond
Marina.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected.

&&

LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747
      4170 8751 4183 8760 4189 8762 4189 8760
      4190 8762 4206 8767 4227 8783 4248 8780
      4246 8702 4213 8696 4179 8697 4179 8696
      4172 8691 4163 8716 4162 8732 4161 8732
TIME...MOT...LOC 1610Z 220DEG 41KT 4206 8788 4183 8760 4162 8738 

HAIL...0.00IN
WIND...50KTS

$$

Birk