Special Marine Warning for 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
Official alert fields
What you need to know
- Applies to
- 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
- Effective
- Ended
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Likely
What is happening
The affected areas were... 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... The thunderstorm has...
What the bulletin says to do
No separate action instruction was included in this NWS record. Read the complete official bulletin and follow local authorities.
Full official description
Bulletin details
The affected areas were... 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... The thunderstorm has weakened and no longer poses a significant threat to boaters.
Lifecycle record
Official revisions
- Update
Special Marine Warning issued July 26 at 10:20PM EDT until July 26 at 10:30PM EDT by NWS Marquette MI
Official revision - Alert
Special Marine Warning issued July 26 at 9:29PM EDT until July 26 at 10:30PM 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
- Update
- Last collected