Alert archive / Illinois / River Flood Warnings in 2017
River Flood Warning 33, NWS Chicago, IL
NWS Chicago, IL issued this river flood warning at Mar 30, 2017, 9:59 PM CDT for Grundy County, Illinois. It took effect at Mar 31, 2017, 6:00 AM CDT. It was in force for 27 hr.
The area
The counties it named.
The facts
- Issued
- Mar 30, 2017, 9:59 PM CDT (02:59 UTC)
- In effect from
- Mar 31, 2017, 6:00 AM CDT
- Expired
- Apr 1, 2017, 8:30 AM CDT
- In force
- 27 hr
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
- Flood severity
- Minor
County Grundy County, IL
The radar
The Chicago radar (KLOT), 45 km from the middle of the area, began a volume at 03:03 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 Illinois River at Morris (MORI2). The gauge peaked at 15.67 ft at Mar 31, 2017, 7:00 PM CDT.
- Action stage
- 13 ft
- Minor stage
- 16 ft
- Moderate stage
- 18 ft
- Major stage
- 22 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05542500, 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 |
|---|---|---|---|---|
| Mar 30, 7:01 PM CDT | Areal Flood Advisory | LOT | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more | 5 hr |
| Mar 30, 9:01 PM CDT | River Flood Advisory | LOT | Boone | 36 hr |
| Mar 30, 9:10 PM CDT | Small Craft Advisory | LOT | 37 hr | |
| Mar 30, 9:37 PM CDT | River Flood Warning | LOT | Lake | 33 hr |
| Mar 30, 9:37 PM CDT | River Flood Warning | LOT | Cook | 33 hr |
| Mar 31, 9:53 AM CDT | River Flood Advisory | LOT | Ogle | 36 hr |
| Mar 31, 9:22 AM CDT | River Flood Advisory | LOT | Lake | 36 hr |
Nearby
River Flood Warnings in Illinois, 2017Every river flood warning in 2017
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.