Ended
Official severity: Severe
Severe Thunderstorm Watch for Cook, IL; De Kalb, IL; DuPage, IL +13 more
Ended
NWS coastal zone LMZ743
Marine alerts linked to this verified National Weather Service zone.
Current answer
NWS updates are unavailable, so this service cannot confirm whether Calumet Harbor IL to Gary IN has no active alerts.
Check weather.govContext only
Burns Harbor to Michigan City IN, Calumet Harbor IL to Gary IN, Gary to Burns Harbor IN and 2 more
Burns Harbor to Michigan City IN, Calumet Harbor IL to Gary IN, Gary to Burns Harbor IN
This page uses official NWS zone membership. For exact location matching, an alert must include official geometry or be linked to a verified zone geometry that contains the point.
How location matching works