Alert archive / Illinois / Flash Flood Warnings in 2006

Flash Flood Warning 7, NWS St. Louis, MO

June 1, 2006Saint Clair County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 1, 2006, 5:21 PM CDT for Saint Clair County, Illinois. It was in force for 4 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
Jun 1, 2006, 5:21 PM CDT (22:21 UTC)
Expired
Jun 1, 2006, 9:15 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Counties, with a storm outline in the text

County Saint Clair County, IL

The radar

The St Louis radar (KLSX), 77 km from the middle of the area, began a volume at 22:23 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, 10.4 hours before the alert went out and 231 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 2006-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 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 2006-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
12 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
795 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
75 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.

000 
WGUS53 KLSX 012222
FFWLSX
ILC163-020215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
521 PM CDT THU JUN 1 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 915 PM CDT

* AT 518 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE       
  AFFECTING SMITHTON...MASCOUTAH AND FREEBURG. THIS FLASH FLOODING   
  CAN BE EXPECTED ALONG SILVER CREEK.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 1 1/2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 3831 9003 3830 8991 3823 8991 3822 8972
      3852 8972 3852 9011

$$

CARNEY
1 follow-up statement
000 
WGUS73 KLSX 020132
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
830 PM CDT THU JUN 1 2006

ILC163-020145-
ST. CLAIR IL-
830 PM CDT THU JUN 1 2006

...THE FLASH FLOOD WARNING FOR SOUTHERN ST. CLAIR COUNTY IS
CANCELLED...

HEAVY RAIN HAS ENDED AND LOCAL LAW ENFORCEMENT OFFICIALS HAVE 
REPORTED NO PROBLEMS WITH FLOODING OR HIGH WATER. AS A RESULT THE 
FLASH FLOOD WARNING HAS BEEN CANCELLED.

WHILE NO FLOODING HAS BEEN REPORTED...CREEKS AND STREAMS MAY STILL 
BE RUNNING HIGH AND FAST. THEREFORE...CHILDREN SHOULD NOT BE ALLOWED 
TO PLAY IN OR NEAR CREEKS AND STREAMS.

LOW WATER CROSSINGS SHOULD STILL BE APPROACHED WITH CAUTION AND  
AVOIDED IF COVERED BY ANY WATER AT ALL.  

LAT...LON 3831 9003 3830 8991 3823 8991 3822 8972
      3852 8972 3852 9011

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 2:56 PM CDTTornado WarningLSXMadison, Saint Clair49 min

Nearby

Flash Flood Warnings in Illinois, 2006Every flash flood warning in 2006

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.