Alert archive / Illinois / Flash Flood Warnings in 2022
Flash Flood Warning 39, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Sep 4, 2022, 4:24 AM CDT for Bond County, Clinton 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
- Sep 4, 2022, 4:24 AM CDT (09:24 UTC)
- Expired
- Sep 4, 2022, 7:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bond County, IL, Clinton County, IL
The radar
The St Louis radar (KLSX), 117 km from the middle of the area, began a volume at 09:28 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 00:00Z, 9.4 hours before the alert went out and 165 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
- 57 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1207 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
035
WGUS53 KLSX 040924
FFWLSX
ILC005-027-041230-
/O.NEW.KLSX.FF.W.0039.220904T0924Z-220904T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service St Louis MO
424 AM CDT Sun Sep 4 2022
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Southeastern Bond County in south central Illinois...
Northeastern Clinton County in south central Illinois...
* Until 730 AM CDT.
* At 424 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3.5 inches of
rain have fallen. Additional rainfall amounts of 0.5 to 1.5 inches
are possible in the warned area. 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...
Tamalco, Beaver Creek and Keyesport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3878 8943 3882 8940 3885 8937 3885 8926
3883 8926 3881 8925 3874 8925 3872 8928
3870 8934 3870 8942
FLASH FLOOD...RADAR INDICATED
$$
Pfahler2 follow-up statements
696
WGUS73 KLSX 041104
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
604 AM CDT Sun Sep 4 2022
ILC005-027-041230-
/O.CON.KLSX.FF.W.0039.000000T0000Z-220904T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bond IL-Clinton IL-
604 AM CDT Sun Sep 4 2022
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM CDT THIS
MORNING FOR SOUTHEASTERN BOND AND NORTHEASTERN CLINTON COUNTIES...
At 604 AM CDT, Doppler radar indicated thunderstorms have produced
heavy rain across the warned area. Between 2.5 and 4 inches of rain
have fallen. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Tamalco, Beaver Creek and Keyesport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3878 8943 3882 8940 3885 8937 3885 8926
3883 8926 3881 8925 3874 8925 3872 8928
3870 8934 3870 8942
FLASH FLOOD...RADAR INDICATED
$$
Pfahler918
WGUS73 KLSX 041225
FFSLSX
Flash Flood Statement
National Weather Service St Louis MO
725 AM CDT Sun Sep 4 2022
ILC005-027-041235-
/O.EXP.KLSX.FF.W.0039.000000T0000Z-220904T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bond IL-Clinton IL-
725 AM CDT Sun Sep 4 2022
...FLASH FLOOD WARNING WILL EXPIRE AT 730 AM CDT THIS MORNING FOR
SOUTHEASTERN BOND AND NORTHEASTERN CLINTON COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3878 8943 3882 8940 3885 8937 3885 8926
3883 8926 3881 8925 3874 8925 3872 8928
3870 8934 3870 8942
$$
CarneyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 11:43 PM CDT | Areal Flood Advisory | LSX | Washington | 4 hr |
| Sep 4, 3:28 AM CDT | Areal Flood Advisory | LSX | Bond, Clinton | 56 min |
| Sep 4, 5:52 AM CDT | Areal Flood Advisory | LSX | Clinton, Saint Clair | 3 hr |
| Sep 4, 8:17 AM CDT | Areal Flood Advisory | LSX | Montgomery | 51 min |
| Sep 4, 9:06 AM CDT | Flash Flood Warning | LSX | Montgomery | 5 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.