Alert archive / Illinois / Flash Flood Warnings in 2000

Flash Flood Warning 6, NWS St. Louis, MO

June 24, 20004 counties in Missouri; 7 counties in Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 24, 2000, 1:59 AM CDT for 4 counties in Missouri; 7 counties in 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
Jun 24, 2000, 1:59 AM CDT (06:59 UTC)
Expired
Jun 24, 2000, 6:00 AM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Calhoun County, IL, Clinton County, IL, Jersey County, IL, Madison County, IL, Marion County, IL, Saint Clair County, IL, Washington County, IL, City of Saint Louis, MO, Lincoln County, MO, Saint Charles County, MO, Saint Louis County, MO

The radar

The St Louis radar (KLSX), 53 km from the middle of the area, began a volume at 07:02 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

Davenport, (KDVN), launched 00:00Z, 7.0 hours before the alert went out and 321 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, Davenport, at 00:00Z on 2000-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2000-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
6 J/kg
Mixed-layer CIN
-205 J/kg
Mixed-layer LCL
667 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
195 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 240700
FFWLSX
ILC013-027-083-119-121-163-189-MOC113-183-189-510-241100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
159 AM CDT SAT JUN 24 2000

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CALHOUN COUNTY IN SOUTHWESTERN ILLINOIS
  CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS
  JERSEY COUNTY IN SOUTHWESTERN ILLINOIS
  MADISON COUNTY ILLINOIS IN SOUTHWESTERN ILLINOIS
  MARION COUNTY ILLINOIS IN SOUTH CENTRAL ILLINOIS
  ST CLAIR COUNTY IN SOUTHWESTERN ILLINOIS
  WASHINGTON COUNTY ILLINOIS IN SOUTH CENTRAL ILLINOIS
  LINCOLN COUNTY IN EAST CENTRAL MISSOURI
  ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI
  ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI
  ST. LOUIS CITY IN EAST CENTRAL MISSOURI

* UNTIL 600 AM CDT

* A BAND OF THUNDERSTORMS CONTAINING HEAVY RAIN EXTENDS FROM
  TROY SOUTHEAST THROUGH THE ST LOUIS METRO AREA TO
  THE SOUTHWESTERN ILLINOIS TOWNS OF CARLYLE AND SALEM.

* RADAR WAS ESTIMATING 2 TO 4 INCHES OF RAIN HAVE FALLEN NEAR
  GRAFTON...EDWARDSVILLE...LEBANNON...TRENTON...GERMANTOWN AND
  CARLYE.  THUNDERSTORMS WILL CONTINUE TO PRODUCE HEAVY RAINS
  OVER THESE SAME AREAS DURING THE EARLY MORNING HOURS.

  BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
  DANGERS OF FLOODING. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW
  DEEP THE WATER MAY BE. MOTORISTS SHOULD NEVER DRIVE THROUGH WATER
  OF UNKNOWN DEPTH.

  GKS/VA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 7:31 PM CDTSevere Thunderstorm WarningLSXPike44 min
Jun 23, 8:35 PM CDTSevere Thunderstorm WarningLSXLincoln, Pike40 min
Jun 24, 2:56 AM CDTFlash Flood WarningLSXFranklin, Montgomery, Warren3 hr
Jun 24, 5:20 AM CDTFlash Flood WarningLSXLincoln, Saint Charles, Saint Louis, Warren, City of Saint Louis4 hr
Jun 24, 9:00 AM CDTFlash Flood WarningLSXLincoln, Montgomery, Saint Charles, Saint Louis, Warren, City of Saint Louis4 hr
Jun 24, 2:08 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis52 min
Jun 24, 2:08 PM CDTSevere Thunderstorm WarningLSXCity of Saint Louis52 min
Jun 23, 7:12 PM CDTSevere Thunderstorm WarningLSXCalhoun48 min
Jun 23, 7:30 PM CDTSevere Thunderstorm WarningLSXJersey45 min
Jun 23, 7:43 PM CDTSevere Thunderstorm WarningLSXMacoupin47 min
Jun 23, 8:00 PM CDTSevere Thunderstorm WarningLSXCalhoun45 min
Jun 23, 8:07 PM CDTSevere Thunderstorm WarningLSXAdams38 min
Jun 23, 8:11 PM CDTSevere Thunderstorm WarningLSXMadison49 min
Jun 23, 8:17 PM CDTSevere Thunderstorm WarningLSXGreene, Jersey43 min
Jun 23, 8:45 PM CDTSevere Thunderstorm WarningLSXAdams45 min
Jun 23, 8:49 PM CDTSevere Thunderstorm WarningLSXCalhoun41 min
Jun 23, 8:59 PM CDTSevere Thunderstorm WarningLSXMadison46 min
Jun 23, 9:38 PM CDTSevere Thunderstorm WarningLSXMarion52 min
Jun 23, 9:49 PM CDTSevere Thunderstorm WarningLSXMadison41 min
Jun 23, 11:01 PM CDTSevere Thunderstorm WarningLSXMarion44 min
Jun 24, 2:51 PM CDTSevere Thunderstorm WarningLSXSaint Clair39 min
Jun 24, 3:13 PM CDTSevere Thunderstorm WarningLSXJersey, Macoupin47 min
Jun 24, 3:23 PM CDTSevere Thunderstorm WarningLSXClinton52 min
Jun 24, 3:36 PM CDTSevere Thunderstorm WarningLSXBond39 min
Jun 24, 3:43 PM CDTSevere Thunderstorm WarningLSXMontgomery47 min
Jun 24, 3:52 PM CDTTornado WarningLSXClinton23 min

Nearby

Flash Flood Warnings in Illinois, 2000Flash Flood Warnings in Missouri, 2000Every flash flood warning in 2000

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.