Marine Dense Smoke Advisory Until 7 PM Friday, July 17: Sheboygan to Port Washington
Sheboygan County, WI — Thursday, July 16, 2026
Boaters and nearshore visitors: plan for reduced visibility on Lake Michigan. The National Weather Service says a Marine Dense Smoke Advisory remains in effect for the Sheboygan to Port Washington nearshore area on Lake Michigan through 7 PM CDT Friday, July 17. NWS notes the dense smoke can cut visibility to 1 nautical mile or less at times, making navigation difficult.
Where the advisory applies
Nearshore waters on Lake Michigan along the Sheboygan to Port Washington corridor, based on the advisory’s marine wording.
What dense smoke means for mariners
- Visibility: Dense smoke may reduce visibility to 1 NM or less.
- Impact: Low visibility will make navigation difficult.
Reader action: use the NWS boating checklist (Friday before 7 PM)
If you must be underway during the advisory window, NWS recommends:
- Proceed with caution
- Use proper fog signals
- Make sure all running lights are on
- Use radar and compass
Share what you’re seeing
If you notice changing visibility near Sheboygan Harbor or along the nearshore route toward Port Washington before 7 PM CDT Friday, July 17, leave a comment so other locals can plan accordingly.
Got another local, service-ready notice to send? Use the site’s Publicize page.
