Alert archive / Missouri / Flash Flood Warnings in 2004
Flash Flood Warning 33, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Aug 27, 2004, 11:59 PM CDT for Knox County, Lewis County, Missouri. It was in force for 6 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 27, 2004, 11:59 PM CDT (04:59 UTC)
- Expired
- Aug 28, 2004, 6:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Counties, with a storm outline in the text
Counties Knox County, MO, Lewis County, MO
The radar
The St Louis radar (KLSX), 190 km from the middle of the area, began a volume at 05:02 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, 5.0 hours before the alert went out and 198 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
- 1345 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 705 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KLSX 280505
FFWLSX
MOC103-111-281100-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1159 PM CDT FRI AUG 27 2004
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
KNOX COUNTY IN NORTHEAST MISSOURI
LEWIS COUNTY IN NORTHEAST MISSOURI
* UNTIL 600 AM CDT
* AT 1159 PM CDT...LAW ENFORCEMENT REPORTED FLASH FLOODING WEST OF
WILLIAMSTOWN ON HWY E. IN ADDITION...MANY SMALL STREAMS AND CREEKS
ARE AT BANKFUL OR HAVE BEGUN TO FLOOD LOW LAND AREAS.
BE ADVISED...THIS IS A VERY DANGEROUS SITUATION. IF YOU EXPERIENCE
FLASH FLOODING MOVE TO HIGHER GROUND IMMEDIATELY
* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
AFFECTING KNOX AND LEWIS COUNTIES.
IF FLASH FLOODING IS OBSERVED OR IMMINENT...MOVE QUICKLY TO HIGHER
GROUND. NEVER DRIVE INTO AN AREA WHERE WATER COVERS THE ROAD.
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.
THOSE CAMPING NEAR SMALL STREAMS SHOULD MOVE TO HIGHER GROUND AT
ONCE. WATER LEVELS MAY RISE RAPIDLY WITH LITTLE OR NO WARNING...EVEN
IF THE HEAVY RAINS ARE WELL UPSTREAM OF YOUR CAMPSITE.
LAT...LON 4030 9197 4026 9196 4024 9152 4009 9153
4001 9150 3996 9146 3996 9232 4031 9234
$$
CVKING2 follow-up statements
000 WGUS73 KLSX 280951 FFSLSX MOC103-111-127-137-173-205-281100- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 450 AM CDT SAT AUG 28 2004 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MONROE...RALLS... MARION...SHELBY...LEWIS AND KNOX COUNTIES UNTIL 600 AM CDT... MUCH OF THE HEAVY RAINFALL DIMINISHED ACROSS NORTHEAST MISSOURI BETWEEN 2 AND 3 AM. HOWEVER...AT 450 AM WEATHER SERVICE DOPPLER RADAR INDICATED ANOTHER BAND OF SHOWERS AND THUNDERSTORMS APPROACHING THE AREA FROM NORTH CENTRAL MISSOURI. ALTHOUGH THERE MAY BE A BRIEF HEAVY DOWNPOUR AS THIS BAND OF SHOWERS AND STORMS MOVES THROUGH NORTHEAST MISSOURI...IN MOST AREAS ANY ADDITIONAL RAIN SHOULD BE ON THE LIGHT SIDE. HOWEVER...DUE TO THE HEAVY RAIN THIS WEEK ALL CREEKS AND STREAMS ARE RUNNING NEAR BANKFULL...AND FLOOD WARNINGS ARE POSTED FOR MOST RIVERS IN NORTHEAST MISSOURI. EARLY MORNING MOTORISTS SHOULD CONTINUE TO USE CAUTION...ESPECIALLY WHEN APPROACHING LOW LYING AND FLOOD PRONE AREAS. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. $$ TRUETT
000 WGUS73 KLSX 281106 FFSLSX MOC103-111-127-137-173-205-281300- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 600 AM CDT SAT AUG 28 2004 ...FLASH FLOOD WARNING FOR MONROE...RALLS...MARION...SHELBY...LEWIS AND KNOX COUNTIES HAS EXPIRED... WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE THUNDERSTORMS WHICH PROMPTED THE FLASH FLOOD WARNING HAVE WEAKENED AND NO LONGER POSE THE THREAT FOR VERY HEAVY RAIN. ADDITIONAL RAIN WILL FALL THIS MORNING BUT AT THIS TIME IT LOOKS LIKE AMOUNTS WILL BE UNDER 1 INCH. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE AREA. IF ADDITIONAL HEAVY RAIN DOES OCCUR FLASH FLOODING WILL HAPPEN QUICKLY BECAUSE OF THE SATURATED GROUND. IN ADDITION...MANY AREA CREEKS...SMALL STREAMS AND RIVERS ARE IN FLOOD OR FULL ALREADY. ADDITIONAL HEAVY RAIN WILL ONLY WORSEN THAT SITUATION. RESIDENTS SHOULD REMAIN CAUTIOUS THROUGH THE DAY AND BE READY TO MOVE QUICKLY IS FLASH FLOODING OCCURS. $$ JPK
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 7:48 PM CDT | Flash Flood Warning | LSX | Marion, Shelby | 6 hr |
| Aug 27, 8:49 PM CDT | Flash Flood Warning | LSX | Monroe, Ralls | 6 hr |
| Aug 28, 1:45 AM CDT | Flash Flood Warning | LSX | Marion, Shelby | 4 hr |
| Aug 28, 2:45 AM CDT | Flash Flood Warning | LSX | Monroe, Ralls | 3 hr |
| Aug 28, 2:22 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 38 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.