Special Marine Warning for St Joseph to South Haven MI; South Haven to Holland MI; Holland to Grand Haven MI +5 more
Official alert fields
What you need to know
- Applies to
- Grand Haven to Whitehall MI, Holland to Grand Haven MI, Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to Mid Lake, Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid Lake, Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake, Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake, South Haven to Holland MI, St Joseph to South Haven MI
- Effective
- Ended
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Likely
What is happening
SMWGRR The National Weather Service in Grand Rapids has issued a * Special Marine Warning for... Nearshore and Open Waters from St Joseph to Whitehall MI... * Until 300 PM EDT. * At 1259 PM EDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 26 nm east of Sheboygan to...
What the bulletin says to do
Boaters should seek safe harbor immediately until these storms pass. Wind gusts to nearly 50 knots, large hail, high waves, dangerous lightning, and heavy rain are possible with these storms. Thunderstorms can produce sudden waterspouts resulting in locally hazardous seas. Seek safe harbor immediately.
Full official description
Bulletin details
SMWGRR The National Weather Service in Grand Rapids has issued a * Special Marine Warning for... Nearshore and Open Waters from St Joseph to Whitehall MI... * Until 300 PM EDT. * At 1259 PM EDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 26 nm east of Sheboygan to 28 nm east of Winthrop Harbor to 12 nm south of Midway Airport, moving southeast at 55 knots. HAZARD...Waterspouts, wind gusts to nearly 50 knots, and large hail. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * Locations impacted include... South Haven Light, St. Joseph Light, White Lake Pier Heads, Holland Light, The White Lake Pierheads, Grand Haven Light, Muskegon Light, and St. Joseph.
Lifecycle record
Official revisions
- Alert
Special Marine Warning issued July 27 at 12:59PM EDT until July 27 at 3:00PM 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
- Alert
- Last collected