Alert archive / Missouri / Flash Flood Warnings in 2004
Flash Flood Warning 20, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 18, 2004, 3:35 PM CDT for Jefferson County, Saint Louis County, Missouri. 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 18, 2004, 3:35 PM CDT (20:35 UTC)
- Expired
- Jun 18, 2004, 7:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Counties, with a storm outline in the text
Counties Jefferson County, MO, Saint Louis County, MO
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 4:05 PM CDT | FLASH FLOOD | Mehlville, MO | 6 INCHES OF WATER ACROSS RINGER AND FODER STREET |
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, 8.6 hours before the alert went out and 244 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 979 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KLSX 182039
FFWLSX
MOC099-189-190030-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
335 PM CDT FRI JUN 18 2004
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI
SOUTHERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI
* UNTIL 730 PM CDT
* AT 335 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN IN AND AROUND
SOUTHERN ST. LOUIS COUNTY AND NORTHERN JEFFERSON COUNTY.
* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
AFFECTING THE WEBSTER GROVES...ARNOLD...IMPERIAL...AND FENTON
AREAS.
IF FLASH FLOODING IS OBSERVED OR IMMINENT...MOVE QUICKLY TO HIGHER
GROUND. NEVER DRIVE INTO AN AREA WHERE WATER COVERS THE ROAD.
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW WATER CROSSINGS IF WATER COVERS THE
ROADWAY. DO NOT DRIVE AROUND BARRICADES IF YOUR VEHICLE STALLS...
ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND.
DURING HEAVY RAINS...KEEP CHILDREN AWAY FROM CREEKS AND STORM DRAINS.
GENTLY FLOWING WATER CAN TURN INTO A RAGING TORRENT IN A MATTER OF
MINUTES.
LAT...LON 3860 9033 3846 9031 3831 9037 3838 9072
3859 9071
$$
RPThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 2:00 PM CDT | Tornado Warning | LSX | Saint Charles | 45 min |
| Jun 18, 2:23 PM CDT | Tornado Warning | LSX | Saint Louis | 52 min |
| Jun 18, 2:28 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 47 min |
| Jun 18, 2:45 PM CDT | Tornado Warning | LSX | Jefferson, Saint Louis | 45 min |
| Jun 18, 2:52 PM CDT | Severe Thunderstorm Warning | LSX | Saint Francois | 38 min |
| Jun 18, 3:31 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison | 44 min |
| Jun 18, 3:36 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 39 min |
Nearby
Flash Flood Warnings in Missouri, 2004Every flash flood warning in 2004
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.