Alert archive / Illinois / Flash Flood Warnings in 2022
Flash Flood Warning 7, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 15, 2022, 4:18 PM CDT for Clinton County, Marion County, Illinois. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 15, 2022, 4:18 PM CDT (21:18 UTC)
- Expired
- May 15, 2022, 7:08 PM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clinton County, IL, Marion County, IL
The radar
The Evansville,IN radar (KVWX), 116 km from the middle of the area, began a volume at 21:18 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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.3 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
- 44 J/kg
- Mixed-layer CIN
- -231 J/kg
- Mixed-layer LCL
- 1885 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -68 m²/s²
- 0-3 km storm-relative helicity
- -86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
652
WGUS53 KLSX 152118
FFWLSX
ILC027-121-160215-
/O.NEW.KLSX.FF.W.0007.220515T2118Z-220516T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
418 PM CDT Sun May 15 2022
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
East Central Clinton County in south central Illinois...
Northern Marion County in south central Illinois...
* Until 915 PM CDT.
* At 418 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 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...
Salem, Sandoval, Odin, Kinmundy, Farina, Fairman, Shattuc, Stephen
Forbes Station, Tonti, Hoffman, Alma, Brubaker and Ferrin.
This includes the following highways...
Interstate 57 in Illinois near exit 127.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3858 8915 3853 8933 3862 8926 3868 8919
3883 8874 3883 8873 3883 8872 3882 8870
3879 8870 3875 8870 3874 8870 3867 8889
FLASH FLOOD...RADAR INDICATED
$$
Carney2 follow-up statements
234
WGUS73 KLSX 152252
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
552 PM CDT Sun May 15 2022
ILC027-121-160215-
/O.CON.KLSX.FF.W.0007.000000T0000Z-220516T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clinton IL-Marion IL-
552 PM CDT Sun May 15 2022
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM CDT THIS
EVENING FOR EAST CENTRAL CLINTON AND NORTHERN MARION COUNTIES IN
SOUTH CENTRAL ILLINOIS...
At 552 PM CDT, Doppler radar indicated that between 2 and 3 inches
of rain have fallen. Flash flooding is expected.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Salem, Sandoval, Odin, Kinmundy, Farina, Fairman, Shattuc, Stephen
Forbes Station, Tonti, Hoffman, Alma, Brubaker and Ferrin.
This includes the following highways...
Interstate 57 in Illinois near exit 127.
Thunderstorms have ended, but runoff from heavy rain is continuing.
Remain alert for rising water and flash flooding into this evening.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3858 8915 3853 8933 3862 8926 3868 8919
3883 8874 3883 8873 3883 8872 3882 8870
3879 8870 3875 8870 3874 8870 3867 8889
FLASH FLOOD...RADAR INDICATED
$$
Carney927
WGUS73 KLSX 160008
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
708 PM CDT Sun May 15 2022
ILC027-121-160018-
/O.CAN.KLSX.FF.W.0007.000000T0000Z-220516T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clinton IL-Marion IL-
708 PM CDT Sun May 15 2022
...FLASH FLOOD WARNING IS CANCELLED FOR EAST CENTRAL CLINTON AND
NORTHERN MARION COUNTIES IN SOUTH CENTRAL ILLINOIS...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3858 8915 3853 8933 3862 8926 3868 8919
3883 8874 3883 8873 3883 8872 3882 8870
3879 8870 3875 8870 3874 8870 3867 8889
$$
MRBThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 7:15 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 45 min |
| May 14, 9:03 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph | 42 min |
| May 15, 4:04 PM CDT | Flash Flood Warning | LSX | Clinton | 3 hr |
Nearby
Flash Flood Warnings in Illinois, 2022Every flash flood warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.