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Mazon, Illinois See all agencies »

1. Advisory

   

   Grundy County IL Emergency Management Agency

   Entered: 5 hours, 17 minutes ago

   Tornado Watch until 11:00PM More »
2. Alert

   

   Grundy County IL Emergency Management Agency

   Entered: 9 hours, 5 minutes ago

   Tornado Warning until 03:45PM More »
3. Alert

   

   Grundy County IL Emergency Management Agency

   Entered: 9 hours, 22 minutes ago

   Severe Thunderstorm Warning until 04:15PM More »
4. Advisory

   

   Grundy County IL Emergency Management Agency

   Entered: 9 hours, 46 minutes ago

   Severe Thunderstorm Watch until 10:00PM More »
5. Advisory

   

   Grundy County IL Emergency Management Agency

   Entered: 2 days, 11 hours ago

   Funnel Clouds Possible for Grundy County, IL: 6/8/2026 1:07 PM to 4:00 PM CDT More »

   
6. Advisory

   

   Grundy County IL Emergency Management Agency

   Entered: 3 days, 7 hours ago

   Flood Advisory in effect until 7pm. - Turn Around Don't Drown More »
7. Advisory

   

   Grundy County IL Emergency Management Agency

   Entered: 1 week, 1 day ago

   GRUNDY COUNTY OUTDOOR WARNING SIREN TEST TODAY AT 10 AM - HAVE AT LEAST 3 WAYS OF RECEIVING EMERGENCY INFORMATION. More »
8. Advisory

   

   Village of Mazon IL

   Entered: 2 weeks, 6 days ago

   Residents may experience discolored water today Thursday May 21 2026 due to fire department conducting hose testing More »

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