OFFICIAL WEATHER ALERT · ACTIVE

Dense Fog Advisory

Dense Fog Advisory issued November 3 at 5:25PM EST until November 4 at 10:00AM EST by NWS Marquette MI

Minor

What is happening

* WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Gale Watch, north winds 20 to 30 kt with gusts up to 45 kt and waves 7 to 12 ft possible. * WHERE...Ontonagon to Upper Entrance of Portage Canal MI, Upper Entrance of Portage Canal to Eagle River MI, Eagle River to Manitou Island MI, Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park and Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...For the Dense Fog Advisory, until 10 AM EST Wednesday. For the Gale Watch, from Thursday morning through Thursday evening. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. Low visibility will make navigation difficult.

Official instructions

Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. 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.

Original message from NWS Marquette MI. Wording is preserved from the source.

Source information

Open official source

Other current warnings

ModerateActive
Special Weather Statement

Vernon; Rapides; Beauregard; Allen; Northern Calcasieu

MinorActive
Marine Weather Statement

Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM; Coastal waters from Englewood to Tarpon Springs FL out 20 NM; Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM; Waters from Englewood to Tarpon Springs FL out 20 to 60 NM

Understand the warning

Dense Fog Advisory – Ontonagon to Upper Entrance of Portage Canal MI; Upper Entrance of Portage Canal | Weather Alert Map