Marine Thunderstorm Wind — Calumet Hbr Il To Gary in, Lake Michigan
2004-07-21 · near Buffington Harbor, Calumet Hbr Il To Gary in, Lake Michigan
60 MG
Magnitude
Event narrative
Wind measured at the Trump Casino boat.
Wider weather episode
In the early afternoon of July 21, thunderstorms began to develop over northeastern Illinois. A small area of strong thunderstorms initially developed over the western Chicago suburbs and rapidly developed into a line of severe storms extending over southern Lake Michigan and the eastern metro area. The line of storms rapidly moved eastward into northwestern Indiana and southeastern Lake Michigan. Strong wind gusts, up to 60 mph, were also measured by the coastal observing stations.
Source: NOAA Storm Events Database, event_id 5414283. Narrative written by the NWS forecast office that issued the report.