Special Marine Warning for Sheboygan to Port Washington WI; Port Washington to North Point Light WI; North Point Light to Wind Point WI +5 more
Official alert fields
What you need to know
- Applies to
- Lake Michigan from North Point Light to Wind Point WI 5NM offshore to Mid Lake, Lake Michigan from Port Washington to North Point Light WI 5NM offshore to Mid Lake, Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake, Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM offshore to Mid Lake, North Point Light to Wind Point WI, Port Washington to North Point Light WI, Sheboygan to Port Washington WI, Wind Point WI to Winthrop Harbor IL
- Effective
- Ended
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Likely
What is happening
For the following areas... Lake Michigan nearshore and open waters to mid lake from Sheboygan WI to Winthrop Harbor IL... At 1156 AM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 16 nm east of Port Washington to near Pleasant Prairie, moving east at 40 knots....
What the bulletin says to do
Move to safe harbor until hazardous weather passes. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects.
Full official description
Bulletin details
For the following areas... Lake Michigan nearshore and open waters to mid lake from Sheboygan WI to Winthrop Harbor IL... At 1156 AM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 16 nm east of Port Washington to near Pleasant Prairie, moving east at 40 knots. HAZARD...Waterspouts, wind gusts to 40 knots, and small hail. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... East southeast of Port Washington North Point Lighthouse and eastward Racine Kenosha.
Lifecycle record
Official revisions
- Update
Special Marine Warning issued August 9 at 11:57AM CDT until August 9 at 12:30PM CDT by NWS Milwaukee/Sullivan WI
Official revision - Update
Special Marine Warning issued August 9 at 11:44AM CDT until August 9 at 12:30PM CDT by NWS Milwaukee/Sullivan WI
Official revision - Alert
Special Marine Warning issued August 9 at 10:57AM CDT until August 9 at 12:30PM CDT by NWS Milwaukee/Sullivan WI
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Milwaukee/Sullivan WI. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Update
- Last collected