Alert archive / Missouri / Flash Flood Warnings in 2007
Flash Flood Warning 8, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Apr 25, 2007, 10:55 PM CDT for Audrain County, Boone County, Missouri. It was in force for 5 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
- Apr 25, 2007, 10:55 PM CDT (03:55 UTC)
- Expired
- Apr 26, 2007, 4:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Audrain County, MO, Boone County, MO
The radar
The St Louis radar (KLSX), 129 km from the middle of the area, began a volume at 03:59 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
Springfield, MO (KSGF), launched 00:00Z, 3.9 hours before the alert went out and 288 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
- 541 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1102 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 160 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 260358
FFWLSX
MOC007-019-260900-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1055 PM CDT WED APR 25 2007
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHWESTERN AUDRAIN COUNTY IN CENTRAL MISSOURI
NORTHERN BOONE COUNTY IN CENTRAL MISSOURI
* UNTIL 400 AM CDT
* AT 1054 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED VERY HEAVY RAIN FROM THUNDERSTORMS OVER THE
WARNED AREA. ONE TO TWO INCHES OF RAIN...WITH ISOLATED HIGHER
AMOUNTS HAVE FALLEN OVER THE WARNED AREA IN THE PAST TWO HOURS.
* THE STORMS PRODUCING VERY HEAVY RAIN WILL REMAIN OVER MAINLY RURAL
AREAS OF NORTHERN BOONE AND NORTHWESTERN AUDRAIN COUNTIES.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. 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.
LAT...LON 3910 9251 3910 9211 3935 9211 3935 9231
3924 9231 3924 9243
$$
BYRD1 follow-up statement
000
WGUS73 KLSX 260827
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
326 AM CDT THU APR 26 2007
MOC007-019-260833-
BOONE MO-AUDRAIN MO-
326 AM CDT THU APR 26 2007
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHWESTERN
AUDRAIN AND NORTHERN BOONE COUNTIES...
THE HEAVIEST RAINFALL EXITED THE WARNING AREA AROUND 1 AM. THE END
OF THE RAINFALL HAS LESSENED THE FLASH FLOOD THREAT...AND A CHECK
WITH AREA LAW ENFORCEMENT INDICATES THAT NO FLOODING PROBLEMS HAVE
BEEN REPORTED.
OCCASIONAL SHOWERS WILL OCCUR DURING THE MORNING...BUT NO PROLONGED
PERIOD OF HEAVY RAIN IS EXPECTED.
LAT...LON 3910 9251 3910 9211 3935 9211 3935 9231
3924 9231 3924 9243
$$
TRUETTThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 9:29 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 46 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.