Alert archive / Missouri / Flash Flood Warnings in 2004
Flash Flood Warning 22, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 30, 2004, 6:18 AM CDT for Franklin County, Missouri. 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
- Jul 30, 2004, 6:18 AM CDT (11:18 UTC)
- Expired
- Jul 30, 2004, 10:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Counties, with a storm outline in the text
County Franklin County, MO
The radar
The St Louis radar (KLSX), 39 km from the middle of the area, began a volume at 11:17 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 00:00Z, 11.3 hours before the alert went out and 280 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
- 53 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1105 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 25 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 301125
FFWLSX
MOC071-301515-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
618 AM CDT FRI JUL 30 2004
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
FRANKLIN COUNTY IN EAST CENTRAL MISSOURI
* UNTIL 1015 AM CDT
* AT 618 AM CDT...WEATHER SPOTTERS REPORTED FLASH FLOODING IN AND
AROUND HAPPY SOCK CREEK...APPROXIMATELY 2 MILES NORTH OF SAINT CLAIR.
* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
AFFECTING BIRCH CREEK AND BRUSH CREEK AS WELL AS THE AREA AROUND
SAINT CLAIR.
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.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. ACT QUICKLY IF FLASH FLOODING IS OBSERVED. MOVE
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.
LAT...LON 3855 9074 3821 9079 3822 9138 3871 9138
3855 9108
$$
WDB1 follow-up statement
000 WGUS73 KLSX 301545 FFSLSX MOC071-099-189-510-301615- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1044 AM CDT FRI JUL 30 2004 ...FLASH FLOOD WARNING FOR NORTHERN JEFFERSON...FRANKLIN... ST. LOUIS CITY AND SOUTHERN ST. LOUIS COUNTIES HAS EXPIRED... WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SHOWERS AND THUNDERSTORMS WHICH PROMPTED THE FLASH FLOOD WARNING HAVE MOVED OUT OF THE AREA. ALTHOUGH THE HEAVY RAIN HAS SUBSIDED...MOTORISTS SHOULD CONTINUE TO USE CAUTION WHILE DRIVING THROUGH AREAS THAT HAVE EXPERIENCED FLOODING. ROADS AND BRIDGES MAY HAVE BEEN DAMAGED BY RAPIDLY FLOWING FLOOD WATERS. IN ADDITION...CHILDREN SHOULD NOT BE ALLOWED TO PLAY NEAR RAIN-SWOLLEN STREAMS OR DRAINAGE DITCHES. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS AND UPDATES. $$
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 6:52 AM CDT | Flash Flood Warning | LSX | Jefferson, Saint Louis, City of Saint Louis | 4 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.