Alert archive / Illinois / River Flood Advisories in 2020
River Flood Advisory 21, NWS Chicago, IL
NWS Chicago, IL issued this river flood advisory at Mar 19, 2020, 10:39 AM CDT for Winnebago County, Illinois. It was in force for 20 hr.
The area
The counties it named.
The facts
- Issued
- Mar 19, 2020, 10:39 AM CDT (15:39 UTC)
- Expired
- Mar 20, 2020, 6:35 AM CDT
- In force
- 20 hr
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
County Winnebago County, IL
The radar
The Milwaukee radar (KMKX), 86 km from the middle of the area, began a volume at 15:39 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 Rock River at Rockton (ROKI2). The gauge peaked at 9.21 ft at Mar 21, 2020, 6:00 AM CDT.
- Action stage
- 8.5 ft
- Minor stage
- 10 ft
- Moderate stage
- 11 ft
- Major stage
- 14 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05437500, 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 18, 9:33 PM CDT | River Flood Watch | LOT | LaSalle | 37 hr |
| Mar 19, 4:58 AM CDT | Marine Dense Fog Advisory | LOT | 14 hr | |
| Mar 19, 6:41 AM CDT | Dense Fog Advisory | LOT | Boone, Cook, DeKalb, DuPage, Kane, Lake and 4 more | 3 hr |
| Mar 19, 8:51 AM CDT | River Flood Advisory | LOT | Iroquois | 43 hr |
| Mar 19, 10:07 AM CDT | Dense Fog Advisory | LOT | Lake | 113 min |
| Mar 19, 10:34 AM CDT | River Flood Watch | LOT | Winnebago | 10 hr |
| Mar 19, 10:39 AM CDT | River Flood Advisory | LOT | Winnebago | 21 days |
| Mar 19, 10:39 AM CDT | River Flood Advisory | LOT | Ogle | 21 days |
| Mar 19, 11:27 AM CDT | River Flood Advisory | LOT | LaSalle | 23 hr |
| Mar 19, 3:59 PM CDT | Lakeshore Flood Advisory | LOT | Cook | 39 hr |
| Mar 19, 3:48 AM CDT | Lakeshore Flood Watch | LOT | Lake, Porter | 12 hr |
Nearby
River Flood Advisories in Illinois, 2020Every river flood advisory in 2020
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.