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Ended official alertUpdated

Special Marine Warning for Green Bay North of line from Cedar River MI to Rock Island Passage; Seul Choix Point to Point Detour MI; 5NM East of a line from Fairport MI to Rock Island Passage +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... 5NM East of a line from Fairport MI to Rock Island Passage... Green Bay North of line from Cedar River MI to Rock Island Passage... Lake Michigan from Seul Choix Point to Rock Island Passage 5NM offshore to Mid Lake... Seul Choix Point to Point Detour MI... At 852 PM EDT, strong...

What the bulletin says to do

A Tornado Watch remains in effect until midnight EDT for east central Upper and south central Upper Michigan...and the adjacent waters of Lake Michigan. Move to safe harbor until hazardous weather passes.

Read official NWS bulletin

Full official description

Bulletin details

For the following areas... 5NM East of a line from Fairport MI to Rock Island Passage... Green Bay North of line from Cedar River MI to Rock Island Passage... Lake Michigan from Seul Choix Point to Rock Island Passage 5NM offshore to Mid Lake... Seul Choix Point to Point Detour MI... At 852 PM EDT, strong thunderstorms were located along a line extending from 12 nm northeast of Point Detour to 7 nm north of St Martin Island to 13 nm northwest of Minneapolis Shoal, moving southeast at 35 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... Summer Island and Point Detour.

Lifecycle record

Official revisions

2 captured
  1. Update

    Special Marine Warning issued July 20 at 8:53PM EDT until July 20 at 9:45PM EDT by NWS Marquette MI

    Official revision
  2. Alert

    Special Marine Warning issued July 20 at 8:10PM EDT until July 20 at 9:45PM 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