Special Marine Warning
Issued by NWS Chicago, IL

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949
WHUS53 KLOT 300107
SMWLOT
LMZ740-777-300215-
/O.NEW.KLOT.MA.W.0023.250630T0107Z-250630T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Chicago/Romeoville
807 PM CDT Sun Jun 29 2025

The National Weather Service in Chicago has issued a

* Special Marine Warning for...

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

* Until 915 PM CDT.

* At 807 PM CDT, a strong thunderstorm was located 9 nm northwest of
  Wilmette Harbor, moving northeast at 15 knots.

  HAZARD...Wind gusts to 40 knots.

  SOURCE...Radar.

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

* Locations impacted include...
  Waukegan Harbor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4231 8782 4233 8782 4233 8783 4237 8783
      4237 8782 4236 8782 4238 8781 4239 8780
      4243 8780 4227 8751 4211 8773 4221 8780
      4227 8783 4230 8783
TIME...MOT...LOC 0107Z 220DEG 14KT 4215 8787

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

$$

Borchardt