Alert archive / Missouri / Flash Flood Warnings in 2003
Flash Flood Warning 40, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Aug 31, 2003, 2:03 PM CDT for 4 counties in 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 31, 2003, 2:03 PM CDT (19:03 UTC)
- Expired
- Aug 31, 2003, 8:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Counties, with a storm outline in the text
Counties Lewis County, MO, Marion County, MO, Monroe County, MO, Shelby County, MO
The radar
The St Louis radar (KLSX), 163 km from the middle of the area, began a volume at 19:03 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 12:00Z, 7.1 hours before the alert went out and 225 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
- 1593 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -47 m²/s²
- 0-3 km storm-relative helicity
- -28 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 311918
FFWLSX
MOC111-127-137-205-010100-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
203 PM CDT SUN AUG 31 2003
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LEWIS COUNTY IN NORTHEAST MISSOURI
MARION COUNTY IN NORTHEAST MISSOURI
MONROE COUNTY IN NORTHEAST MISSOURI
SHELBY COUNTY IN NORTHEAST MISSOURI
* UNTIL 800 PM CDT
* AT 200 PM CDT...STEADY RAINS HAVE FALLEN THROUGH THE MORNING
ACROSS THE AREA. DOPPLER PRECIPITATION ESTIMATES INDICATE 2 TO 3
INCHES OF RAIN HAS FALLEN SINCE 700 AM THIS MORNING. IN ADDITION
TO THAT OVERNIGHT RAINS REACHED AN INCH OR TWO IN SOME AREAS.
THE HEAT OF THE AFTERNOON HAS NOW CAUSED SCATTERED THUNDERSTORMS
TO DEVELOP UPSTREAM FROM THE WARNED AREA. THIS WILL MAKE ADDITIONAL
RAINFALL MORE VARIABLE...HOWEVER SOME AREAS SOULD RECEIVE ANOTHER
TWO TO FOUR INCHES OF RAINFALL THIS AFTERNOON AND TONIGHT. THIS
WILL BRING RAINFALL TOTALS IN THAT AREA TO LOCALLY 6 TO 8 INCHES AND
POSSIBLY HIGHER.
ANTECEDENT WEATHER CONDITIONS HAVE BEEN DRY...HOWEVER THE COPIOUS
RAINFALL TOTALS FROM THIS STORM WILL CREATE MAJOR RUNOFF AND
SIGNIFICANT FLOODING THIS AFTERNOON AND EVENING.
ALL RIVERS...STREAMS...AND TRIBUTARIES...INCLUDING THE SALT RIVER AND
ITS TRIBUTARIES...LONG BRANCH...OTTER CREEK...NORTH RIVER...AND THE
NORTH...MIDDLE...AND SOUTH FABIUS RIVERS...WILL SEE MAJOR RISES.
CAMPERS AND OTHER OUTDOOR HOLIDAY INTERESTS SHOULD TAKE SPECIAL
PRECAUTIONS FOR SAFETY. LAW ENFORCEMENT PERSONNEL SHOULD KEEP
PEOPLE IN FLOOD PRONE AREAS ADVISED.
A LOT OF THIS RUNOFF WILL COME ABOUT AFTER IT IS DARK
TONIGHT...THATS WHEN MOST FATALITIES OCCUR. BE CAREFUL
IF FLASH FLOODING IS OBSERVED OR IMMINENT...MOVE QUICKLY TO HIGHER
GROUND. NEVER DRIVE INTO AN AREA WHERE WATER COVERS THE ROAD.
LAT...LON 4025 9151 3971 9139 3966 9177 3938 9176
3937 9231 3986 9231 3998 9198 4030 9194
$$
PEDIGO1 follow-up statement
000 WGUS73 KLSX 312250 FFSLSX MOC111-127-137-205-010045- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 545 PM CDT SUN AUG 31 2003 ...FLASH FLOOD WARNING FOR MONROE...MARION...SHELBY AND LEWIS COUNTIES IN NORTHEAST MISSOURI HAS BEEN CANCELLED... WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SHOWERS AND THUNDERSTORMS CONTAINING HEAVY RAINFALL WHICH PROMPTED THE FLASH FLOOD WARNING HAVE MOVED OUT OF THE AREA...ALTHOUGH LIGHT RAINFALL WILL CONTINUE FOR THE NEXT FEW HOURS. SO FAR THERE HAVE BEEN NO REPORTS OF FLOODING IN THIS AREA. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE AREA THROUGH LABOR DAY. ANY ADDITIONAL HEAVY RAIN WHICH AFFECTS THE AREA WILL FALL ON SATURATED GROUND AND MAY PRODUCE FLOODING OF LOW LYING AND FLOOD PRONE AREAS. $$ GKS
Nearby
Flash Flood Warnings in Missouri, 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.