Alert archive / Illinois / Flash Flood Warnings in 2011

Flash Flood Warning 39, NWS St. Louis, MO

June 10, 2011Bond County, Fayette County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 10, 2011, 7:49 PM CDT for Bond County, Fayette County, Illinois. It was in force for 4 hr. 1 report 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: Jun 10, 2011, 7:49 PM CDT (00:49 UTC)
Expired: Jun 11, 2011, 12:00 AM CDT
In force: 4 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Bond County, IL, Fayette County, IL

The radar

The Evansville,IN radar (KVWX), 127 km from the middle of the area, began a volume at 00:49 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
Jun 10, 9:26 PM CDT	FLASH FLOOD	Shobonier, IL	SEVERAL REPORTS OF WATER OVER ROUTE 51 JUST SOUTH OF SHOBONIER.

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 00:00Z, 0.8 hours before the alert went out and 147 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1004 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 1475 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

631 
WGUS53 KLSX 110049
FFWLSX
ILC005-051-110500-
/O.NEW.KLSX.FF.W.0039.110611T0049Z-110611T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
749 PM CDT FRI JUN 10 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN BOND COUNTY IN SOUTH CENTRAL ILLINOIS...
  SOUTHERN FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL MIDNIGHT CDT

* AT 747 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GREENVILLE...BEAVER CREEK...BROWNSTOWN...FARINA...MULBERRY GROVE...
  SHOBONIER...ST. ELMO AND TAMALCO.

  RADAR ESTIMATES RAINFALLS OF 1 TO 3 INCHES FROM JUST SOUTHEAST
  OF GREENVILLE TO JUST SOUTH OF VANDALIA SINCE 6 PM...WITH LOCALLY
  HIGHER AMOUNTS POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 3883 8870 3883 8913 3873 8914 3874 8950
      3888 8949 3905 8880 3891 8880 3892 8872
      3891 8869

$$

TRUETT

1 follow-up statement

265 
WGUS73 KLSX 110232
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
932 PM CDT FRI JUN 10 2011

ILC005-051-110500-
/O.CON.KLSX.FF.W.0039.000000T0000Z-110611T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FAYETTE IL-BOND IL-
932 PM CDT FRI JUN 10 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN BOND AND
SOUTHERN FAYETTE COUNTIES UNTIL MIDNIGHT CDT...

AT 930 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. UP TO 
4 INCHES OF RAIN HAS FALLEN SINCE 6 PM. MORE STORMS WERE IN THE AREA 
SO COULD SEE ADDITIONAL RAINFALL OVER THE NEXT SEVERAL HOURS.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GREENVILLE...BEAVER CREEK...BROWNSTOWN...FARINA...MULBERRY GROVE...
SHOBONIER...ST. ELMO AND TAMALCO.

AT 926 PM...FAYETTE COUNTY SHERIFF/S DEPARTMENT REPORTED THAT THERE 
WAS SOME WATER OVER U.S. HIGHWAY 51 JUST SOUTH OF SHOBONIER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 3883 8870 3883 8913 3873 8914 3874 8950
      3888 8949 3905 8880 3891 8880 3892 8872
      3891 8869

$$

BYRD

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 7:14 PM CDT	Severe Thunderstorm Warning	LSX	Brown	46 min
Jun 10, 8:29 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown	16 min
Jun 10, 8:45 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Pike	35 min
Jun 10, 9:11 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Pike	49 min
Jun 10, 9:33 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun	42 min
Jun 10, 9:53 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Montgomery	53 min
Jun 10, 9:58 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey, Madison	35 min
Jun 10, 10:18 PM CDT	Areal Flood Advisory	LSX	Adams, Brown, Pike	3 hr
Jun 10, 11:14 PM CDT	Flash Flood Warning	LSX	Bond, Fayette, Macoupin, Montgomery	5 hr
Jun 10, 11:19 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Marion	41 min
Jun 10, 11:20 PM CDT	Tornado Warning	LSX	Bond, Clinton, Fayette, Marion	23 min
Jun 10, 11:41 PM CDT	Severe Thunderstorm Warning	LSX	Fayette	39 min
Jun 11, 1:47 AM CDT	Severe Thunderstorm Warning	LSX	Monroe, Saint Clair	22 min

Nearby

Flash Flood Warnings in Illinois, 2011 Every flash flood warning in 2011

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.