Alert archive / Illinois / Flash Flood Warnings in 2021
Flash Flood Warning 32, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Aug 30, 2021, 11:37 AM CDT for Clay County, Richland County, Illinois. It was in force for 3 hr. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 30, 2021, 11:37 AM CDT (16:37 UTC)
- Expired
- Aug 30, 2021, 2:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clay County, IL, Richland County, IL
The radar
The Evansville,IN radar (KVWX), 75 km from the middle of the area, began a volume at 16:41 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 30, 12:10 PM CDT | HEAVY RAIN 1.45 | Flora, IL | RAINFALL SINCE 8 AM TODAY. |
| Aug 30, 1:10 PM CDT | FLASH FLOOD | 3 Sse Clay City, IL | WAYNE CO SHERIFF RECEIVED A REPORT THAT BIG FOUR ROAD NORTH OF ANGLING ROAD IS FLOODED. |
| Aug 30, 2:00 PM CDT | HEAVY RAIN 1.17 | 6 Sse Clay City, IL | RAINFALL FROM NOON TO 2 PM, WITH ADDITIONAL RAIN AFTER 2 PM. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 4.6 hours before the alert went out and 162 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 295 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 983 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
The text
As transmitted.
382
WGUS53 KILX 301637
FFWILX
ILC025-159-301945-
/O.NEW.KILX.FF.W.0032.210830T1637Z-210830T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lincoln IL
1137 AM CDT Mon Aug 30 2021
The National Weather Service in Lincoln has issued a
* Flash Flood Warning for...
Eastern Clay County in south central Illinois...
Western Richland County in southeastern Illinois...
* Until 245 PM CDT.
* At 1136 AM CDT, Doppler radar indicated slow-moving thunderstorms
producing heavy rain across the warned area. Between 1.5 and 2.5
inches of rain have fallen. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Flora, Louisville, Clay City, Noble, Sailor Springs, Ingraham,
Schnell, Wendelin, Wakefield and Olney Noble Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3861 8854 3886 8855 3885 8813 3859 8813
FLASH FLOOD...RADAR INDICATED
$$
Barnes2 follow-up statements
340
WGUS73 KILX 301814
FFSILX
Flash Flood Statement
National Weather Service Lincoln IL
114 PM CDT Mon Aug 30 2021
ILC025-159-301945-
/O.CON.KILX.FF.W.0032.000000T0000Z-210830T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay IL-Richland IL-
114 PM CDT Mon Aug 30 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 PM CDT THIS
AFTERNOON FOR EASTERN CLAY AND WESTERN RICHLAND COUNTIES...
At 112 PM CDT, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Between 2 and 4 inches
of rain have fallen. Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement received a report that Big Four Road
north of Angling Road is flooded.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Flora, Louisville, Clay City, Noble, Sailor Springs, Ingraham,
Schnell, Wendelin, Wakefield and Olney Noble Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3861 8854 3886 8855 3885 8813 3859 8813
FLASH FLOOD...OBSERVED
$$
NMB848 WGUS73 KILX 301942 FFSILX Flash Flood Statement National Weather Service Lincoln IL 242 PM CDT Mon Aug 30 2021 ILC025-159-301952- /O.EXP.KILX.FF.W.0032.000000T0000Z-210830T1945Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Clay IL-Richland IL- 242 PM CDT Mon Aug 30 2021 ...FLASH FLOOD WARNING AT 245 PM CDT THIS AFTERNOON FOR EASTERN CLAY AND WESTERN RICHLAND COUNTIES HAS BEEN REPLACED WITH A FLOOD ADVISORY... The heavy rain has ended. Please continue to heed remaining road closures. LAT...LON 3861 8854 3886 8855 3885 8813 3859 8813 $$ NMB
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 12:53 PM CDT | Areal Flood Advisory | ILX | Edgar, Vermilion | 3 hr |
| Aug 30, 2:28 PM CDT | Special Weather Statement | ILX | Clark, Coles, Cumberland, Shelby | 32 min |
| Aug 30, 2:47 PM CDT | Areal Flood Advisory | ILX | Clay | 3 hr |
| Aug 30, 3:06 PM CDT | Special Weather Statement | ILX | Clark, Cumberland | 54 min |
| Aug 30, 3:16 PM CDT | Areal Flood Advisory | ILX | Clark, Coles, Edgar | 3 hr |
Nearby
Flash Flood Warnings in Illinois, 2021Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.