Grundy County, IL Weather Alerts
Every National Weather Service alert issued for Grundy County, Illinois, pushed to your phone within moments — county code ILC063, forecast zone ILZ021. Free with StormCast.
Download on Google PlayHow the NWS identifies Grundy County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches ILC063 directly rather than matching on place names, which is why an alert arrives whether you are in Braceville or anywhere else in the county.
NWS County Code
ILC063
Forecast Zone
ILZ021
Forecast Office
Romeoville (LOT)
Radar Station
KLOT
Towns covered in Grundy County
An NWS alert for Grundy County applies to all 9 of these communities. You do not need a separate alert for each one.
River gauges in and around Grundy County
StormCast tracks 7 gauges near Grundy County. Set a flood-stage alert on any of them to get notified before the water reaches you.
Current conditions
Loading current conditions…
Alert types issued for Grundy County
Tornado
Tornado Warning, Tornado Watch, Tornado Emergency and Severe Thunderstorm Warning.
How tornado alerts work →Flooding
Flash Flood Warning, Flood Watch, Flood Advisory and River Flood Warning.
How flood alerts work →Winter
Winter Storm Warning, Ice Storm Warning, Blizzard Warning and Winter Weather Advisory.
Winter warnings explained →Fire Weather
Red Flag Warning and Fire Weather Watch when conditions favor rapid fire spread.
Fire weather alerts →Heat & Cold
Excessive Heat Warning, Heat Advisory, Freeze Warning and Frost Advisory.
Frost & freeze alerts →Grundy County weather alert questions
Which NWS forecast zone is Grundy County in?
Grundy County, Illinois is NWS county code ILC063 and forecast zone ILZ021. Alerts for it are issued by the Romeoville (LOT) Weather Forecast Office, and the nearest NEXRAD radar is KLOT.
Which towns in Grundy County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for Grundy County covers every community inside it, including Braceville, Coal City, Gardner, Kinsman, Mazon, Minooka, Morris, South Wilmington and Verona.
Are there river gauges in Grundy County?
Yes — StormCast monitors 7 river gauges in and around Grundy County, including Mazon River near Coal City, Illinois River at Morris, Illinois River at Dresden Lock (tailwater). You can set a flood-stage alert on any of them and get a push notification when the water rises.
How fast are alerts for Grundy County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for ILC063, the push notification goes out within moments — even with your screen off.