Alert archive / Illinois / River Flood Advisories in 2021
River Flood Advisory 24, NWS Chicago, IL
NWS Chicago, IL issued this river flood advisory at Jun 27, 2021, 11:06 AM CDT for Grundy County, Illinois. It was in force for 25 hr.
The area
The counties it named.
The facts
- Issued
- Jun 27, 2021, 11:06 AM CDT (16:06 UTC)
- Expired
- Jun 28, 2021, 11:49 AM CDT
- In force
- 25 hr
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
County Grundy County, IL
The radar
The Chicago radar (KLOT), 45 km from the middle of the area, began a volume at 16:07 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Mazon River near Coal City (COLI2).
- Action stage
- 10 ft
- Minor stage
- 12 ft
- Moderate stage
- 16 ft
- Major stage
- 19 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05542000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 8:31 PM CDT | River Flood Warning | LOT | Cook | 22 hr |
| Jun 26, 8:55 PM CDT | River Flood Warning | LOT | Iroquois | 4 days |
| Jun 26, 9:01 PM CDT | River Flood Warning | LOT | Grundy | 14 hr |
| Jun 26, 9:13 PM CDT | River Flood Warning | LOT | LaSalle | 3 days |
| Jun 26, 9:24 PM CDT | River Flood Advisory | LOT | Will | 10 hr |
| Jun 26, 9:28 PM CDT | River Flood Advisory | LOT | DuPage, Will | 23 hr |
| Jun 26, 9:38 PM CDT | Areal Flood Advisory | LOT | Cook, Ford, Iroquois, Kankakee, Livingston, Will | 9 hr |
| Jun 26, 10:10 PM CDT | River Flood Warning | LOT | Grundy, LaSalle | 40 hr |
| Jun 26, 10:14 PM CDT | River Flood Warning | LOT | LaSalle | 5 days |
| Jun 26, 10:17 PM CDT | River Flood Warning | LOT | Bureau, LaSalle, Putnam | 10 days |
| Jun 26, 11:03 PM CDT | River Flood Advisory | LOT | Grundy, Kankakee, Will | 6 days |
| Jun 27, 11:45 AM CDT | River Flood Advisory | LOT | Iroquois | 34 hr |
| Jun 26, 9:38 PM CDT | River Flood Advisory | LOT | Jasper | 4 days |
| Jun 26, 9:45 PM CDT | River Flood Watch | LOT | Lake, Newton | 13 hr |
| Jun 26, 9:48 PM CDT | River Flood Watch | LOT | Jasper, Porter | 48 hr |
| Jun 27, 10:43 AM CDT | River Flood Warning | LOT | Lake, Newton | 10 days |
| Jun 27, 11:45 AM CDT | River Flood Advisory | LOT | Newton | 66 hr |
Nearby
River Flood Advisories in Illinois, 2021Every river flood advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.