Dense Fog Advisory for Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM; Upper Entrance of Portage Canal to Eagle River MI; Eagle River to Manitou Island MI +2 more
Official alert fields
What you need to know
- Applies to
- 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, Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM, Upper Entrance of Portage Canal to Eagle River MI
- Effective
- Ends or expires
- Official severity
- Minor
- Official urgency
- Expected
- Official certainty
- Likely
What is happening
What: Dense fog will reduce visibility to less than one nautical mile. Impacts: Low visibility will make navigation difficult. Where: Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM, Upper Entrance of Portage Canal to Eagle River MI, Eagle River to Manitou Island MI, Lake Superior...
What the bulletin says to do
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.
Full official description
Bulletin details
* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM, 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...Until 11 AM EDT /10 AM CDT/ this morning. * IMPACTS...Low visibility will make navigation difficult.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Alert
Dense Fog Advisory issued September 1 at 12:51AM EDT until September 1 at 11:00AM EDT by NWS Marquette MI
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Marquette MI. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected