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Ended official alertUpdated

Special Marine Warning for Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake

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... Open Waters from South Haven to Holland MI... At 922 PM EDT, a severe thunderstorm was located 11 nm southwest of Saugatuck Pier Heads, moving southeast at 20 knots. HAZARD...Wind gusts 34 knots or greater and large hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in...

What the bulletin says to do

Boaters should seek safe harbor immediately until this storm passes. Wind gusts 34 knots or greater, large hail, high waves, dangerous lightning, and heavy rain are possible with this storm.

Read official NWS bulletin

Full official description

Bulletin details

For the following areas... Open Waters from South Haven to Holland MI... At 922 PM EDT, a severe thunderstorm was located 11 nm southwest of Saugatuck Pier Heads, moving southeast at 20 knots. HAZARD...Wind gusts 34 knots or greater 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.

Lifecycle record

Official revisions

4 captured
  1. Update

    Special Marine Warning issued July 27 at 9:22PM EDT until July 27 at 9:45PM EDT by NWS Grand Rapids MI

    Official revision
  2. Update

    Special Marine Warning issued July 27 at 9:12PM EDT until July 27 at 9:45PM EDT by NWS Grand Rapids MI

    Official revision
  3. Update

    Special Marine Warning issued July 27 at 8:56PM EDT until July 27 at 9:45PM EDT by NWS Grand Rapids MI

    Official revision
  4. Alert

    Special Marine Warning issued July 27 at 8:41PM EDT until July 27 at 9:45PM EDT by NWS Grand Rapids MI

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Grand Rapids 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