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Ended official alertUpdated

Special Marine Warning for Saxon Harbor WI to Black River MI; Black River To Ontonagon 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

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

The affected areas were... Black River To Ontonagon 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... Saxon Harbor WI to Black River MI... The thunderstorm has moved out of the area and no longer poses a...

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.

Read official NWS bulletin

Full official description

Bulletin details

The affected areas were... Black River To Ontonagon 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... Saxon Harbor WI to Black River MI... The thunderstorm has moved out of the area and no longer poses a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 1000 AM EDT for western Upper Michigan...and the adjacent waters of Lake Superior.

Lifecycle record

Official revisions

3 captured
  1. Update

    Special Marine Warning issued July 27 at 9:06AM EDT until July 27 at 9:15AM EDT by NWS Marquette MI

    Official revision
  2. Update

    Special Marine Warning issued July 27 at 8:45AM EDT until July 27 at 9:15AM EDT by NWS Marquette MI

    Official revision
  3. Alert

    Special Marine Warning issued July 27 at 8:19AM EDT until July 27 at 9:15AM 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
Methodology and corrections