Gusty thunderstorms pose a threat to Lake Michigan mariners from Wilmette Harbor north, Special Marine Warning in effect until 7:45 pm

Severe Weather Updates

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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 745 PM CDT.

* AT 704 PM CDT, A STRONG THUNDERSTORM WAS LOCATED 7 NM SOUTHWEST OF
  WAUKEGAN HARBOR, MOVING NORTHEAST AT 30 KNOTS.

  HAZARD...WIND GUSTS TO 40 KNOTS AND SMALL HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND 
           SUDDENLY HIGHER WAVES.

* LOCATIONS IMPACTED INCLUDE...
  WINTHROP HARBOR AND WAUKEGAN HARBOR. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE
EXPECTED.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE, KEEP AWAY FROM UNGROUNDED
METAL OBJECTS.

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