Special Marine Warning for Port Sanilac to Port Huron MI; Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border
Official alert fields
What you need to know
- Applies to
- Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border, Port Sanilac to Port Huron MI
- Effective
- Ends or expires
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Likely
What is happening
For the following areas... Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border... Port Sanilac to Port Huron MI... At 707 PM EDT, a severe thunderstorm was located near Lakeport, moving southeast at 35 knots. HAZARD...Wind gusts to nearly 50 knots and large hail. SOURCE...Radar indicated....
What the bulletin says to do
Boaters should seek safe harbor immediately until this storm passes. Wind gusts to nearly 50 knots, large hail, high waves, dangerous lightning, and heavy rain are possible with this storm.
Full official description
Bulletin details
For the following areas... Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border... Port Sanilac to Port Huron MI... At 707 PM EDT, a severe thunderstorm was located near Lakeport, moving southeast at 35 knots. HAZARD...Wind gusts to nearly 50 knots and large hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. The severe thunderstorm will remain over mainly open waters.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Update
Special Marine Warning issued September 2 at 7:07PM EDT until September 2 at 7:45PM EDT by NWS Detroit/Pontiac MI
Official revision - Alert
Special Marine Warning issued September 2 at 6:20PM EDT until September 2 at 7:45PM 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