Special Marine Warning Issued for Lake Michigan from Wilmette Harbor to Michigan City

Alert Details

The National Weather Service in Chicago has issued a Special Marine Warning for the nearshore and open waters of Lake Michigan. The alert was issued at 10:34 PM CDT on March 10 and remains in effect until 12:30 AM CDT on March 11.

Affected Areas

The warning covers the following geographic regions:

• Nearshore waters from Wilmette Harbor to Calumet Harbor, IL
• Nearshore waters from Calumet Harbor, IL to Michigan City, IN
• Open waters from Wilmette Harbor to Michigan City out to Mid Lake

Specific locations impacted include Harrison-Dever Crib, 31st Street Harbor, Monroe Harbor, Burns Harbor, Calumet Harbor, Indiana Harbor, Montrose Harbor, Burnham Harbor, Hammond Marina, Jackson Park Harbor, Marina Shores at Dune Harbor, and 59th Street Marina.

What You Should Do

Mariners and residents in the affected areas are advised to avoid the water. Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. Additionally, a Tornado Watch remains in effect until 11:00 PM CDT for northwestern Indiana.

Expected Conditions

Radar indicates strong to severe thunderstorms located along a line from Schaumburg to Morris, Illinois, moving east-northeast at 40 knots. The primary hazards include wind gusts of 34 knots or greater and large hail.

Timeline

The Special Marine Warning is effective immediately as of 10:34 PM CDT and is scheduled to expire at 12:30 AM CDT on March 11.