Marine Weather Statement for Winthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Northerly Island to Calumet Harbor IL +2 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, Northerly Island to Calumet Harbor IL, Wilmette Harbor to Northerly Island IL, Winthrop Harbor to Wilmette Harbor IL
- Effective
- Ended
- Official severity
- Minor
- Official urgency
- Expected
- Official certainty
- Observed
What is happening
A Marine Weather Statement has been issued for the following areas... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 712 PM CDT, NWS Meteorologists were tracking a thunderstorm capable of producing northwesterly wind gusts up to 30...
What the bulletin says to do
Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes.
Full official description
Bulletin details
A Marine Weather Statement has been issued for the following areas... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 712 PM CDT, NWS Meteorologists were tracking a thunderstorm capable of producing northwesterly wind gusts up to 30 kt and small hail. A waterspout cannot be ruled out, as well. The thunderstorm was located about 15 miles east of Lake Forest and was moving south at 35 knots. In addition, a front was moving south along the Lake Michigan shore to the west of the thunderstorm. A northerly wind shift with gusts up to 25 kt may occur with the front away from the thunderstorm.
Lifecycle record
Official revisions
- Alert
Marine Weather Statement issued August 22 at 7:13PM 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