Alert archive / Illinois / River Flood Warnings in 2018
River Flood Warning 55, NWS Chicago, IL
NWS Chicago, IL issued this river flood warning at May 21, 2018, 11:10 AM CDT for Cook County, Illinois. It took effect at May 21, 2018, 2:43 PM CDT. It was in force for 72 hr.
The area
The counties it named.
The facts
- Issued
- May 21, 2018, 11:10 AM CDT (16:10 UTC)
- In effect from
- May 21, 2018, 2:43 PM CDT
- Expired
- May 24, 2018, 2:16 PM CDT
- In force
- 72 hr
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
- Flood severity
- Minor
County Cook County, IL
The radar
The Chicago radar (KLOT), 49 km from the middle of the area, began a volume at 16:11 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 Des Plaines River near Des Plaines (DSPI2). The gauge peaked at 16.35 ft at May 22, 2018, 12:00 AM CDT.
- Action stage
- 13.5 ft
- Minor stage
- 15 ft
- Moderate stage
- 18 ft
- Major stage
- 19 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05529000, 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 |
|---|---|---|---|---|
| May 21, 10:12 AM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Kane, Kendall, Lake, Will | 3 hr |
| May 21, 10:30 AM CDT | River Flood Advisory | LOT | Lake | 45 hr |
| May 21, 11:10 AM CDT | River Flood Warning | LOT | Lake | 4 days |
| May 21, 11:47 AM CDT | River Flood Warning | LOT | Kane, Kendall | 4 days |
| May 21, 12:18 PM CDT | River Flood Advisory | LOT | Lake, Will | 3 hr |
| May 21, 12:18 PM CDT | River Flood Advisory | LOT | Cook | 57 hr |
| May 21, 12:18 PM CDT | River Flood Advisory | LOT | Cook | 67 hr |
| May 21, 2:39 PM CDT | Marine Dense Fog Advisory | LOT | 66 hr | |
| May 21, 2:40 PM CDT | River Flood Warning | LOT | Lake | 67 hr |
| May 21, 2:40 PM CDT | River Flood Warning | LOT | Cook | 31 hr |
| May 21, 2:47 PM CDT | River Flood Warning | LOT | Will | 15 hr |
| May 21, 3:17 PM CDT | River Flood Advisory | LOT | LaSalle | 19 hr |
Nearby
River Flood Warnings in Illinois, 2018Every river flood warning in 2018
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.