Special Marine Warning for Winthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake +1 more
Official alert fields
What you need to know
- Applies to
- Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake, Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Wilmette Harbor to Northerly Island IL, Winthrop Harbor to Wilmette Harbor IL
- Effective
- Ended
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Likely
What is happening
SMWLOT The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Winthrop Harbor to Northerly Island... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... * Until 245 AM CDT. * At 1239 AM CDT, several clusters of strong thunderstorms were located...
What the bulletin says to do
Move to safe harbor until hazardous weather passes.
Full official description
Bulletin details
SMWLOT The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Winthrop Harbor to Northerly Island... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... * Until 245 AM CDT. * At 1239 AM CDT, several clusters of strong thunderstorms were located across southwestern Lake Michigan, moving east at 15 knots. HAZARD...Wind gusts to 40 knots and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Wilmette Harbor.
Lifecycle record
Official revisions
- Alert
Special Marine Warning issued August 10 at 12:40AM CDT until August 10 at 2:45AM CDT by NWS Chicago IL
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Chicago IL. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected