Alert archive / Illinois / Flash Flood Warnings in 2021

Flash Flood Warning 47, NWS Paducah, KY

August 9, 2021Edwards County, Wayne County, Illinois

NWS Paducah, KY issued this flash flood warning at Aug 9, 2021, 8:19 AM CDT for Edwards County, Wayne County, Illinois. It was in force for 2 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
Aug 9, 2021, 8:19 AM CDT (13:19 UTC)
Expired
Aug 9, 2021, 10:45 AM CDT
In force
2 hr
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

Counties Edwards County, IL, Wayne County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 1.3 hours before the alert went out and 199 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.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2021-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 150 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2021-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
150 J/kg
Mixed-layer CIN
-169 J/kg
Mixed-layer LCL
976 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

523 
WGUS53 KPAH 091319
FFWPAH
ILC047-191-091545-
/O.NEW.KPAH.FF.W.0047.210809T1319Z-210809T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Paducah KY
819 AM CDT Mon Aug 9 2021

The National Weather Service in Paducah has issued a

* Flash Flood Warning for...
  Wayne County in south central Illinois...
  Edwards County in southeastern Illinois...

* Until 1045 AM CDT.

* At 819 AM CDT, Doppler Radar indicated that thunderstorms 
  producing heavy rain across the warned area earlier this morning. 
  Between 3 and 4 inches of rain have fallen. Flash flooding is 
  already occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...At 755 am CDT, Fairfield Police Department reported
           that flooding continued along and north of Route 45.
           A person was also rescued from their vehicle earlier
           this morning.

  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...
  Fairfield, Albion, Grayville, Wayne City, West Salem, Cisne, 
  Jeffersonville, Sims, Bone Gap, Browns, Mount Erie, Keenes, 
  Johnsonville and Golden Gate.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3827 8870 3861 8870 3860 8815 3857 8815
      3857 8795 3854 8795 3854 8794 3850 8796
      3844 8794 3842 8795 3840 8798 3839 8797
      3838 8798 3834 8795 3831 8795 3831 8796
      3829 8795 3827 8799 3826 8799 3828 8801

FLASH FLOOD...OBSERVED

$$

SMITH
2 follow-up statements
700 
WGUS73 KPAH 091532
FFSPAH

Flash Flood Statement
National Weather Service Paducah KY
1032 AM CDT Mon Aug 9 2021

ILC047-191-091545-
/O.CON.KPAH.FF.W.0047.000000T0000Z-210809T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Edwards IL-Wayne IL-
1032 AM CDT Mon Aug 9 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT THIS 
MORNING FOR WAYNE AND EDWARDS COUNTIES...

At 1032 AM CDT, Doppler radar indicated a few lingering showers and 
isolated thunderstorms fell during the past hour in the warned area, 
but that the rainfall trend should continue to decrease for the 
remainder of the morning. Between 3 and 4 inches of rain have fallen 
in the warned area early this morning.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...At 1020 am CDT, Wayne County Sheriffs office reported
         water was receding from roads flooded earlier this
         morning. At 1022 am CDT...Edwards County Sheriffs office
         reported that one low lying road that normally floods
         still has water on it. Water should recede from this
         roadway later this morning.

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...
  Fairfield, Albion, Grayville, Wayne City, West Salem, Cisne, 
  Jeffersonville, Sims, Bone Gap, Browns, Mount Erie, Keenes, 
  Johnsonville and Golden Gate.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3827 8870 3861 8870 3860 8815 3857 8815
      3857 8795 3854 8795 3854 8794 3850 8796
      3844 8794 3842 8795 3840 8798 3839 8797
      3838 8798 3834 8795 3831 8795 3831 8796
      3829 8795 3827 8799 3826 8799 3828 8801

FLASH FLOOD...OBSERVED

$$

SMITH
562 
WGUS73 KPAH 091554
FFSPAH

Flash Flood Statement
National Weather Service Paducah KY
1054 AM CDT Mon Aug 9 2021

ILC047-191-091604-
/O.EXP.KPAH.FF.W.0047.000000T0000Z-210809T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Edwards IL-Wayne IL-
1054 AM CDT Mon Aug 9 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR WAYNE AND EDWARDS COUNTIES...

Flood waters have receded. The heavy rain has ended. Flooding is no 
longer expected to pose a threat. Please continue to heed any 
remaining road closures.

LAT...LON 3827 8870 3861 8870 3860 8815 3857 8815
      3857 8795 3854 8795 3854 8794 3850 8796
      3844 8794 3842 8795 3840 8798 3839 8797
      3838 8798 3834 8795 3831 8795 3831 8796
      3829 8795 3827 8799 3826 8799 3828 8801

$$

SMITH

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 4:56 AM CDTFlash Flood WarningPAHWayne3 hr
Aug 9, 5:28 AM CDTFlash Flood WarningPAHEdwards, Wabash3 hr
Aug 9, 1:53 PM CDTHeat AdvisoryPAHAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more3 days

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; the sounding from the Mesonet's radiosonde archive.