Alert archive / Missouri / Flash Flood Warnings in 2003
Flash Flood Warning 3, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 6, 2003, 7:55 PM CDT for Jefferson County, Missouri; Monroe County, 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
- May 6, 2003, 7:55 PM CDT (00:55 UTC)
- Expired
- May 7, 2003, 12:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Monroe County, IL, Jefferson County, MO
The radar
The St Louis radar (KLSX), 55 km from the middle of the area, began a volume at 00:55 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, 0.9 hours before the alert went out and 258 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
- 208 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 1589 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLSX 070058 FFWLSX ILC133-MOC099-070500- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 755 PM CDT TUE MAY 6 2003 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... JEFFERSON COUNTY IN EAST CENTRAL MISSOURI MONROE COUNTY IN SOUTHWEST ILLINOIS * UNTIL MIDNIGHT CDT * AT 755 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS JEFFERSON COUNTY AND MONROE COUNTY. WITH RECENT HEAVY RAIN...THE GROUND IS NEARLY SATURATED. * FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND MAY BE AFFECTING PERSONS AROUND HILLSBORO AND BARNHARDT. 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. $$
2 follow-up statements
000 WGUS73 KLSX 070233 FFSLSX ILC133-MOC099-070500- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 927 PM CDT TUE MAY 6 2003 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MONROE AND JEFFERSON COUNTIES UNTIL MIDNIGHT... AT 927 PM CDT...LAW ENFORCEMENT REPORTED NUMEROUS FLOODED ROADS ACROSS JEFFERSON COUNTY AND MONROE COUNTY INCLUDING THE CITIES OF MAEYSTOWN...DE SOTO...FESTUS...AND CRYSTAL CITY. FLOODED ROADS WERE ALSO HAMPERING RESCUE EFFORTS IN JEFFERSON COUNTY. A NUMBER OF SMALL CREEKS AND STREAMS WERE OUT OF THEIR BANKS. WHILE THE HEAVIEST RAINFALL HAS ENDED...LIGHT TO MODERATE RAIN WILL CONTINUE THROUGH AROUND 1100 PM AND THIS WILL PROLONG AND AGGREVATE EXISTING FLOODING. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. AVOID BRIDGES...DIPS... OR OTHER LOW LYING AREAS...AND NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. $$
000 WGUS73 KLSX 070352 FFSLSX ILC133-MOC099-070500- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1045 PM CDT TUE MAY 6 2003 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MONROE AND JEFFERSON COUNTIES UNTIL MIDNIGHT CDT... LOCAL LAW ENFORCEMENT FROM JEFFERSON COUNTY REPORTED EXTENSIVE FLOODING IN AND AROUND THE COMMUNITIES OF DE SOTO...FESTUS...AND CRYSTAL CITY. PEOPLE WERE REPORTEDLY TRAPPED IN CARS DUE TO 3 TO 4 FEET OF WATER. NUMEREROUS SMALL CREEKS AND STREAMS WERE OUT OF THEIR BANKS. IN MONROE COUNTY...LOCAL LAW ENFORCEMENT REPORTED A NUMBER OF ROADS AROUND MAEYSTOWN REMAINED FLOODED. WIDESPREAD RAINFALL SHOULD BE ENDING ACROSS THE AREA BY MIDNIGHT WITH ONLY SCATTERED SHOWERS AND POSSIBLY A THUNDERSTORM EXPECTED OVERNIGHT. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. 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. $$ FG
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 7:01 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 44 min |
| May 6, 7:16 PM CDT | Tornado Warning | LSX | Franklin, Jefferson | 59 min |
| May 6, 7:25 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 50 min |
| May 6, 7:37 PM CDT | Flash Flood Warning | LSX | Franklin | 3 hr |
| May 6, 7:38 PM CDT | Tornado Warning | LSX | Sainte Genevieve, Saint Francois | 52 min |
| May 6, 8:00 PM CDT | Tornado Warning | LSX | Sainte Genevieve | 45 min |
| May 6, 8:07 PM CDT | Tornado Warning | LSX | Iron, Madison, Saint Francois | 38 min |
| May 6, 8:46 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison, Reynolds | 59 min |
| May 6, 7:46 PM CDT | Tornado Warning | LSX | Monroe | 59 min |
| May 6, 7:53 PM CDT | Tornado Warning | LSX | Randolph | 52 min |
| May 6, 8:06 PM CDT | Tornado Warning | LSX | Saint Clair | 54 min |
| May 6, 8:35 PM CDT | Tornado Warning | LSX | Washington | 55 min |
| May 6, 8:41 PM CDT | Tornado Warning | LSX | Randolph | 49 min |
| May 6, 9:24 PM CDT | Tornado Warning | LSX | Washington | 36 min |
Nearby
Flash Flood Warnings in Missouri, 2003Flash Flood Warnings in Illinois, 2003Every flash flood warning in 2003
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.