Minor Dense Smoke Advisory | Effective 07/18/2026 12:15

Headline: 
Dense Smoke Advisory issued July 18 at 3:15PM EDT until July 20 at 8:00AM EDT by NWS Marquette MI
Event: 
Dense Smoke Advisory
Urgency: 
Expected
Effective: 
July 18, 2026 - 12:15pm
Expires: 
July 19, 2026 - 12:15am
Description: 
* WHAT...For the Dense Smoke Advisory, dense smoke will reduce visibility to less than one nautical mile. For the Small Craft Advisory, north winds 15 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft occurring. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage, Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Smoke Advisory, until 8 AM EDT Monday. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.
Instruction: 
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.
Area Description: 
Green Bay North of line from Cedar River MI to Rock Island Passage; Seul Choix Point to Point Detour MI; 5NM East of a line from Fairport MI to Rock Island Passage
Forcast Office: 
NWS Marquette MI