Alert archive / Missouri / Flash Flood Warnings in 2004
Flash Flood Warning 25, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Aug 25, 2004, 3:14 PM CDT for Marion 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
- Aug 25, 2004, 3:14 PM CDT (20:14 UTC)
- Expired
- Aug 25, 2004, 7:15 PM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Counties, with a storm outline in the text
County Marion County, MO
The radar
The St Louis radar (KLSX), 149 km from the middle of the area, began a volume at 20:14 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, 8.2 hours before the alert went out and 256 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
- 1166 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 777 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 201 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 252017 FFWLSX MOC127-260015- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 314 PM CDT WED AUG 25 2004 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... MARION COUNTY IN NORTHEAST MISSOURI * UNTIL 715 PM CDT * AT 314 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER MUCH OF CENTRAL AND EASTERN MARION COUNTY. * FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE AFFECTING HANNIBAL...PALMYRA AND TAYOR. DOPPLER RADAR INDICATED 2 TO 4 INCHES OF RAINFALL SINCE 8 AM CDT OVER THE EASTERN PART OF THE COUNTY. 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. LAT...LON 3996 9145 3969 9131 3966 9185 3996 9186 $$ DUMMER/RP
2 follow-up statements
000 WGUS73 KLSX 252306 FFSLSX MOC127-260015- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 604 PM CDT WED AUG 25 2004 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MARION COUNTY UNTIL 715 PM CDT... AT 604 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF THUNDERSTORMS PRODUCING VERY HEAVY RAIN EXTENDING FROM WESTERN MARION COUNTY INTO NORTHERN RALLS COUNTY. THESE STORMS ARE MOVING NORTHEAST AROUND 25 MPH. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. AVOID BRIDGES...DIPS... OR OTHER LOW LYING AREAS...AND NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. $$ WDB
000 WGUS73 KLSX 260017 FFSLSX MOC127-260045- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 715 PM CDT WED AUG 25 2004 ...FLASH FLOOD WARNING FOR MARION COUNTY HAS EXPIRED... WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE THUNDERSTORMS WHICH PROMPTED THE FLASH FLOOD WARNING HAVE MOVED OUT OF THE AREA. AT 715 PM THE STRONGEST STORMS WERE LOCATED OVER NORTHEASTERN MONROE AND SOUTHERN RALLS COUNTY. THESE STORMS ARE MOVING NORTHEAST AROUND 25 MPH. ALTHOUGH THE HEAVY RAINS HAVE 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. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE AREA. ANY ADDITIONAL RAIN WHICH AFFECTS THE AREA WILL FALL ON SATURATED GROUND AND WOULD LIKELY PRODUCE ADDITIONAL FLOODING. $$ WDB
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 1:52 PM CDT | Flash Flood Warning | LSX | Marion, Pike, Ralls | 4 hr |
| Aug 25, 2:26 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Callaway, Montgomery | 49 min |
| Aug 25, 3:22 PM CDT | Severe Thunderstorm Warning | LSX | Audrain | 38 min |
| Aug 25, 3:44 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole | 46 min |
| Aug 25, 3:56 PM CDT | Flash Flood Warning | LSX | Audrain | 4 hr |
| Aug 25, 4:26 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 34 min |
| Aug 25, 4:32 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 43 min |
| Aug 25, 5:23 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 22 min |
| Aug 25, 5:30 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 30 min |
| Aug 25, 5:51 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 39 min |
| Aug 25, 6:53 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 37 min |
| Aug 25, 6:58 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.