Weather Alert WatchOfficial-source alert index
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Ended official alertUpdated

Special Marine Warning for Harbor Beach to Port Sanilac MI; Port Sanilac to Port Huron MI; Lake Huron from Harbor Beach to Port Sanilac 5NM Off Shore to US/Canadian border +1 more

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

For the following areas... Harbor Beach to Port Sanilac MI... Lake Huron from Harbor Beach to Port Sanilac 5NM Off Shore to US/Canadian border... Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border... Port Sanilac to Port Huron MI... At 1259 PM EDT, a cluster of strong thunderstorms were...

What the bulletin says to do

Move to safe harbor until hazardous weather passes.

Read official NWS bulletin

Full official description

Bulletin details

For the following areas... Harbor Beach to Port Sanilac MI... Lake Huron from Harbor Beach to Port Sanilac 5NM Off Shore to US/Canadian border... Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border... Port Sanilac to Port Huron MI... At 1259 PM EDT, a cluster of strong thunderstorms were located near Lakeport up to Port Sanilac, moving east at 30 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Lakeport, Port Sanilac, Port Huron, and Lexington.

Lifecycle record

Official revisions

3 captured
  1. Update

    Special Marine Warning issued July 21 at 1:00PM EDT until July 21 at 1:30PM EDT by NWS Detroit/Pontiac MI

    Official revision
  2. Update

    Special Marine Warning issued July 21 at 12:32PM EDT until July 21 at 1:30PM EDT by NWS Detroit/Pontiac MI

    Official revision
  3. Alert

    Special Marine Warning issued July 21 at 12:05PM EDT until July 21 at 1:30PM EDT by NWS Detroit/Pontiac MI

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Detroit/Pontiac 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