Dense Fog Advisory for Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border
Official alert fields
What you need to know
- 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 from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. When: Until 8 AM EDT Friday.
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 from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...Until 8 AM EDT Friday. * IMPACTS...Low visibility will make navigation difficult.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Alert
Dense Fog Advisory issued October 22 at 3:09PM EDT until October 23 at 8:00AM 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