Alert archive / Missouri / Flash Flood Warnings in 2007
Flash Flood Warning 14, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 10, 2007, 4:34 PM CDT for Saint Charles County, Saint Louis County, Missouri. It was in force for 4 hr. 6 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 10, 2007, 4:34 PM CDT (21:34 UTC)
- Expired
- May 10, 2007, 8:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
The radar
The St Louis radar (KLSX), 11 km from the middle of the area, began a volume at 21:34 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 5:05 PM CDT | FLOOD | Black Jack, MO | WATER FLOWING OVER NEW HALLS FERRY ROAD...AS WELL AS OVER ASHLAND DRIVE. DEPTH OF WATER OVER ROAD UNKNOWN...BUT ROADS HAVE BEEN CLOSED BY POLICE. |
| May 10, 5:35 PM CDT | HEAVY RAIN 0 | Kirkwood, MO | STREET FLOODING ON BALLAS ROAD NEAR DAUGHTERY FERRY ROAD. |
| May 10, 5:50 PM CDT | FLASH FLOOD | Valley Park, MO | 1 FOOT OF WATER AT INTERSECTION OF HIGHWAY 141 AND I-44 IN VALLEY PARK. |
| May 10, 6:00 PM CDT | HEAVY RAIN 4 | 2 E Florissant, MO | NEAR JAMESTOWN MALL. |
| May 10, 6:15 PM CDT | FLASH FLOOD | West Alton, MO | RED SCHOOL ROAD IMPASSIBLE. 6 INCHES OF WATER FLOWING OVER WHISE ROAD. STANDING WATER ALSO REPORTED AT HIGHWAY 94 AND MINTERT ROAD...AND IN MANY FIELDS IN THE AREA. |
| May 10, 6:20 PM CDT | HEAVY RAIN 0 | West Alton, MO | 1-2 INCHES OF WATER ON HIGHWAY 94 IN WEST ALTON. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.6 hours before the alert went out and 232 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
- 2262 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 69 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 102136
FFWLSX
MOC183-189-110130-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
434 PM CDT THU MAY 10 2007
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EASTERN ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI
NORTHERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI
* UNTIL 830 PM CDT
* AT 429 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A CLUSTER OF THUNDERSTORMS PRODUCING HEAVY RAINFALL AND POSSIBLE
FLASH FLOODING.
* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
AFFECTING WEST ALTON...PORTAGE DES SIOUX AND ORCHARD
FARMS...FLORISSANT...AND BLACK JACK.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLASH FLOODING.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
LAT...LON 3877 9054 3875 9021 3880 9012 3885 9012
3892 9026 3896 9040 3888 9048
$$
CVKING3 follow-up statements
000
WGUS73 KLSX 102215
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
514 PM CDT THU MAY 10 2007
MOC183-189-110130-
ST. LOUIS MO-ST. CHARLES MO-
514 PM CDT THU MAY 10 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
EASTERN ST. CHARLES AND NORTHERN ST. LOUIS COUNTIES...
AT 508 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A CLUSTER OF THUNDERSTORMS PRODUCING FLASH FLOODING OVER
THE WARNED AREA.
LAW ENFORCEMENT REPORTED WATER FLOWING OVER NEW HALLS FERRY ROAD AND
ASHLAND DRIVE. THESE ROADS HAVE BEEN CLOSED BY LOCAL POLICE.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WEST ALTON...
PORTAGE DES SIOUX...ORCHARD FARMS...FLORISSANT AND BLACK JACK.
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
LAT...LON 3877 9054 3875 9021 3880 9012 3885 9012
3892 9026 3896 9040 3888 9048
$$
CVKING000
WGUS73 KLSX 102244
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
541 PM CDT THU MAY 10 2007
MOC183-189-110130-
ST. LOUIS MO-ST. CHARLES MO-
541 PM CDT THU MAY 10 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
EASTERN ST. CHARLES AND ST. LOUIS COUNTIES...
AT 537 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS AND SPOTTERS HAVE
REPORTED HEAVY RAINFALL AND FLOWING WATER OVER ROADS NEAR KIRKWOOD.
IN ADDITION...WATER HAS BEEN REPORTED TO BE FLOWING OVER NEW HALLS
FERRY ROAD AND ASHLAND DRIVE IN BLACKJACK.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WEST ALTON...
PORTAGE DES SIOUX...ORCHARD FARMS...ST. CHARLES...FLORISSANT...
BLACKJACK...KIRKWOOD AND PEERLESS PARK.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
LAT...LON 3850 9061 3850 9040 3866 9031 3885 9012
3892 9026 3896 9040 3879 9059
$$
CVKING000
WGUS73 KLSX 102341
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
641 PM CDT THU MAY 10 2007
MOC183-189-102351-
ST. LOUIS MO-ST. CHARLES MO-
641 PM CDT THU MAY 10 2007
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EASTERN ST. CHARLES
AND ST. LOUIS COUNTIES...
THE STORMS WHICH PRODUCED THE HEAVY RAINS EARLIER HAVE MOVED OUT OF
THE COUNTY AND A CHECK WITH AREA LAW ENFORCEMENT INDICATES THAT
FLOODING IS NO LONGER A PROBLEM IN THE AREA.
LAT...LON 3850 9061 3850 9040 3866 9031 3885 9012
3892 9026 3896 9040 3879 9059
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 10:20 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison | 29 min |
| May 10, 2:38 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Warren | 52 min |
| May 10, 3:15 PM CDT | Flash Flood Warning | LSX | Boone | 4 hr |
| May 10, 3:37 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 38 min |
Nearby
Flash Flood Warnings in Missouri, 2007Every flash flood warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.