Alert archive / Illinois / Flash Flood Warnings in 2008

Flash Flood Warning 53, NWS St. Louis, MO

June 6, 20084 counties in Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 6, 2008, 4:44 PM CDT for 4 counties in Illinois. It was in force for 6 hr. 5 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: Jun 6, 2008, 4:44 PM CDT (21:44 UTC)
Expired: Jun 6, 2008, 10:45 PM CDT
In force: 6 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Bond County, IL, Clinton County, IL, Fayette County, IL, Marion County, IL

The radar

The St Louis radar (KLSX), 112 km from the middle of the area, began a volume at 21:45 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 6, 6:55 PM CDT	HEAVY RAIN 1.9	Patoka, IL	CREEKS COMING OUT OF THEIR BANKS
Jun 6, 7:45 PM CDT	FLASH FLOOD	Aviston, IL	HIGHWAY 50 CLOSED IN SPOTS DUE TO FLOODING...AT ROUTE 160 NEAR TRENTON AND NEAR AVISTON.
Jun 6, 7:45 PM CDT	FLASH FLOOD	Carlyle, IL	ROUTE 127 CLOSED NORTH OF CARLYLE.
Jun 6, 7:45 PM CDT	FLASH FLOOD	Patoka, IL	ROADS WATER COVERED AND IMPASSABLE AROUND PATOKA...VERNON...AND KINMUNDY. THIS INCLUDED U.S. HIGHWAY 51 AND HIGHWAY 37.
Jun 6, 7:56 PM CDT	FLASH FLOOD	Aviston, IL	2.25 INCHES OF RAINFALL OBSERVED. CREEKS ALL OUT OF THEIR BANKS. WATER GETTING CLOSE TO US HIGHWAY 50.

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, 9.7 hours before the alert went out and 177 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: 751 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 991 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 387 m²/s²
0-3 km storm-relative helicity: 407 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 062144
FFWLSX
ILC005-027-051-121-070145-
/O.NEW.KLSX.FF.W.0053.080606T2144Z-080607T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
444 PM CDT FRI JUN 6 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 845 PM CDT

* AT 441 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  SEVERE THUNDERSTORMS PRODUCING TORRENTIAL RAINFALL ACROSS THE      
  WARNED AREA. FLASH FLOODING OVER THE WARNED AREA IS EXPECTED.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
  AFFECTING TAMALCO...ST. ROSE...SHOBONIER...PATOKA...BOULDER AND
  BEAVER CREEK.

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.

LAT...LON 3884 8882 3847 8971 3850 8971 3851 8972
      3866 8971 3866 8960 3870 8961 3897 8880
TIME...MOT...LOC 2144Z 180DEG 0KT 3865 8945

$$

CVKING

2 follow-up statements

000 
WGUS73 KLSX 062235
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
535 PM CDT FRI JUN 6 2008

ILC005-027-051-121-070145-
/O.CON.KLSX.FF.W.0053.000000T0000Z-080607T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLINTON IL-MARION IL-BOND IL-FAYETTE IL-
535 PM CDT FRI JUN 6 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
SOUTHERN FAYETTE...SOUTHEASTERN BOND...NORTHWESTERN MARION AND
CLINTON COUNTIES...

AT 532 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE STRONG THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINFALL 
ACROSS THE WARNED AREA. EXCESSIVE RUNOFF FROM THIS RAINFALL WILL 
LEAD TO FLASH FLOODING OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TAMALCO...ST.
ROSE...SHOBONIER...PATOKA...BOULDER AND BEAVER CREEK.

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.

LAT...LON 3884 8882 3847 8971 3850 8971 3851 8972
      3866 8971 3866 8960 3870 8961 3897 8880
TIME...MOT...LOC 2235Z 180DEG 0KT 3865 8945

$$

CVKING

000 
WGUS53 KLSX 070136
FFWLSX
ILC005-027-051-121-070345-
/O.EXT.KLSX.FF.W.0053.000000T0000Z-080607T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
835 PM CDT FRI JUN 6 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS EXTENDED THE

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

* UNTIL 1045 PM CDT

* AT 831 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THAT THE STRONG TO SEVERE THUNDERSTORMS THAT PRODUCED              
  LOCALLY HEAVY RAINFALL WERE MOVING EAST OF THE WARNED AREA.        
  EXCESSIVE RUNOFF WILL CONTINUE TO PRODUCE FLASH FLOODING THROUGH   
  THE EVENING ACROSS THE WARNED AREA. 

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
  AFFECTING TAMALCO...ST. ROSE...SHOBONIER...PATOKA...BOULDER AND
  BEAVER CREEK.

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.

LAT...LON 3884 8882 3847 8971 3850 8971 3851 8972
      3866 8971 3866 8960 3870 8961 3897 8880
TIME...MOT...LOC 0135Z 180DEG 0KT 3865 8945

$$

CVKING

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 2:52 AM CDT	Severe Thunderstorm Warning	LSX	Adams	38 min
Jun 6, 2:21 PM CDT	Tornado Warning	LSX	Monroe, Saint Clair	39 min
Jun 6, 2:54 PM CDT	Tornado Warning	LSX	Clinton, Madison, Saint Clair	51 min
Jun 6, 2:58 PM CDT	Flash Flood Warning	LSX	Madison, Saint Clair	4 hr
Jun 6, 3:12 PM CDT	Tornado Warning	LSX	Monroe	48 min
Jun 6, 3:32 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Madison, Montgomery	43 min
Jun 6, 3:38 PM CDT	Flash Flood Warning	LSX	Bond, Clinton, Fayette, Madison, Montgomery	7 hr
Jun 6, 3:43 PM CDT	Tornado Warning	LSX	Clinton, Madison, Saint Clair	47 min
Jun 6, 3:52 PM CDT	Flash Flood Warning	LSX	Monroe, Saint Clair	4 hr
Jun 6, 4:18 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Marion	42 min
Jun 6, 4:22 PM CDT	Tornado Warning	LSX	Bond, Clinton	23 min
Jun 6, 4:41 PM CDT	Tornado Warning	LSX	Bond, Clinton, Fayette, Marion	40 min
Jun 6, 6:27 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton	30 min

Nearby

Flash Flood Warnings in Illinois, 2008 Every flash flood warning in 2008

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.