For the following areas...
Nearshore Waters from Winthrop Harbor to Northerly Island... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake...
At 1153 AM CDT, numerous severe thunderstorms were moving along the Lake Michigan shoreline, southeast at around 20 knots.
HAZARD...Wind gusts to nearly 50 knots and large hail.
SOURCE...Radar indicated.
IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage.
Locations impacted include... Harrison-Dever Crib, Wilmette Harbor, Winthrop Harbor, Montrose Harbor, Monroe Harbor, Waukegan Harbor, Belmont Harbor, Diversy Harbor, and DuSable Harbor.