Alert archive / Illinois / Flash Flood Warnings in 2007

Flash Flood Warning 15, NWS St. Louis, MO

May 10, 2007Greene County, Illinois

NWS St. Louis, MO issued this flash flood warning at May 10, 2007, 5:02 PM CDT for Greene 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 counties it named.

The facts

Issued
May 10, 2007, 5:02 PM CDT (22:02 UTC)
Expired
May 10, 2007, 9:00 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

County Greene County, IL

The radar

The St Louis radar (KLSX), 77 km from the middle of the area, began a volume at 22:03 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, 10.0 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-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2007-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2007-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2262 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
69 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 102203
FFWLSX
ILC061-110200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
502 PM CDT THU MAY 10 2007

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GREENE COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 900 PM CDT

* AT 458 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A CLUSTER OF THUNDERSTORMS PRODUCING HEAVY RAINFALL AND POSSIBLE   
  FLASH FLOODING IN CENTRAL GREEN COUNTY NEAR CARROLLTON.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE       
  AFFECTING CARROLLTON...WRIGHTS...WALKERSVILLE...BERDAN AND         
  BELLTOWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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 3918 9051 3918 9032 3939 9019 3939 9054

$$

CVKING
2 follow-up statements
000 
WGUS73 KLSX 102212
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
510 PM CDT THU MAY 10 2007

ILC061-110200-
GREENE IL-
510 PM CDT THU MAY 10 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
CENTRAL GREENE COUNTY...

AT 503 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A CLUSTER OF THUNDERSTORMS PRODUCING FLASH FLOODING OVER 
THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CARROLLTON.

A TRAINED SPOTTER SOUTH OF CARROLLTON RECEIVED 2.8 INCHES OF 
RAINFALL IN THE PAST TWO HOURS. HE REPORTED THAT WATER IS FLOWING 
OUT OF THE FIELDS...FILLING THE DITCHES AND RUNNING ACROSS THE ROADS.

ILLINOIS STATE POLICE REPORT THAT 1 TO 3 MILES WEST OF CARROLLTON 
FLASH FLOODING IS OCCURRING ALONG HIGHWAY 108.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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 3918 9051 3918 9032 3939 9019 3939 9054

$$

CVKING
000 
WGUS73 KLSX 102331
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
632 PM CDT THU MAY 10 2007

ILC061-102342-
GREENE IL-
632 PM CDT THU MAY 10 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL GREENE
COUNTY...

A CHECK WITH AREA LAW ENFORCEMENT INDICATES THAT FLOODING IS NO
LONGER A PROBLEM IN THE AREA.

LAT...LON 3918 9051 3918 9032 3939 9019 3939 9054

$$

CVKING

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 1:52 PM CDTSevere Thunderstorm WarningLSXMadison, Saint Clair38 min
May 10, 2:52 PM CDTSevere Thunderstorm WarningLSXJersey38 min
May 10, 2:55 PM CDTSevere Thunderstorm WarningLSXMadison28 min
May 10, 3:32 PM CDTFlash Flood WarningLSXMadison4 hr
May 10, 3:43 PM CDTSevere Thunderstorm WarningLSXJersey47 min
May 10, 3:52 PM CDTSevere Thunderstorm WarningLSXMarion38 min
May 10, 4:06 PM CDTFlash Flood WarningLSXJersey4 hr
May 10, 6:25 PM CDTSevere Thunderstorm WarningLSXSaint Clair50 min

Nearby

Flash Flood Warnings in Illinois, 2007Every flash flood warning in 2007

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.