675
FZUS73 KLOT 170513
MWSLOT

Marine Weather Statement
National Weather Service Chicago/Romeoville
1213 AM CDT Sun Aug 17 2025

LMZ777-170523-
/O.CAN.KLOT.MA.W.0040.000000T0000Z-250817T0630Z/
1213 AM CDT Sun Aug 17 2025

...THE SPECIAL MARINE WARNING IS CANCELLED...

The affected areas were...

  Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid
Lake...

The thunderstorms have moved out of the warned area and no longer
pose a significant threat to boaters.

&&

LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747
      4171 8753 4175 8753 4179 8758 4178 8758
      4185 8761 4189 8762 4189 8760 4190 8762
      4196 8764 4206 8717 4172 8690 4163 8716
      4162 8732 4161 8733
TIME...MOT...LOC 0513Z 341DEG 19KT 4200 8729 4190 8767

$$

LMZ741>745-779-170630-
/O.CON.KLOT.MA.W.0040.000000T0000Z-250817T0630Z/
1213 AM CDT Sun Aug 17 2025

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 130 AM CDT...

For the following areas...

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

At 1213 AM CDT, strong thunderstorms were located along a line
extending from 13 nm east of Harrison-Dever Crib to near Diversy
Harbor, moving south at 20 knots.

HAZARD...Wind gusts to 40 knots.

SOURCE...Radar indicated.

IMPACT...Small craft could be damaged in briefly higher winds and
         suddenly higher waves.

Locations impacted include...
Harrison-Dever Crib, Burnham Harbor, Hammond Marina, Jackson Park
Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Belmont
Harbor, Calumet Harbor, Marina Shores at Dune Harbor, Michigan City,
and 59th Street Marina.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747
      4171 8753 4175 8753 4179 8758 4178 8758
      4185 8761 4189 8762 4189 8760 4190 8762
      4196 8764 4206 8717 4172 8690 4163 8716
      4162 8732 4161 8733
TIME...MOT...LOC 0513Z 341DEG 19KT 4200 8729 4190 8767

HAIL...0.00IN
WIND...40KTS

$$

Borchardt