Alert archive / Missouri / Flash Flood Warnings in 2011
Flash Flood Warning 77, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 13, 2011, 1:25 AM CDT for 8 counties in Missouri. It was in force for 8 hr. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 13, 2011, 1:25 AM CDT (06:25 UTC)
- Expired
- Jul 13, 2011, 9:30 AM CDT
- In force
- 8 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Crawford County, MO, Franklin County, MO, Gasconade County, MO, Jefferson County, MO, Osage County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 85 km from the middle of the area, began a volume at 06:25 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 |
|---|---|---|---|
| Jul 13, 1:30 AM CDT | FLASH FLOOD | 3 Nw Potosi, MO | WATER COVERING AND FLOWING OVER HIGHWAY F IN SEVERAL SPOTS TO THE NORTHWEST OF POTOSI. MOVED AN SUV OFF TO THE SIDE OF THE ROAD. |
| Jul 13, 8:00 AM CDT | HEAVY RAIN 1.8 | Potosi, MO | 1.70 INCHES OF THE 24 HOUR TOTAL FELL AFTER MIDNIGHT THIS MORNING |
| Jul 13, 8:00 AM CDT | HEAVY RAIN 2.22 | Rich Fountain, MO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.4 hours before the alert went out and 267 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
- 1117 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 2434 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
331
WGUS53 KLSX 130625
FFWLSX
MOC055-071-073-099-151-186-187-221-131430-
/O.NEW.KLSX.FF.W.0077.110713T0625Z-110713T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
125 AM CDT WED JUL 13 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
GASCONADE COUNTY IN EAST CENTRAL MISSOURI...
SOUTHERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
SOUTHERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
SOUTHERN OSAGE COUNTY IN CENTRAL MISSOURI...
ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 930 AM CDT
* AT 122 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. RADAR ESTIMATES THAT 2 TO 3 INCHES OF RAIN
HAS FALLEN SINCE 1000 PM IN A BAND EXTENDING FROM JUST
SOUTH OF LINN TO BOURBON TO POTOSI.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ANTHONIES MILL...BISMARCK...BONNE TERRE...BOURBON...CUBA...DE
SOTO...DESLOGE...FARMINGTON...LEADWOOD...OWENSVILLE...POTOSI...
STEELVILLE...SULLIVAN...BLAND...BLOOMSDALE...CHERRYVILLE...
COFFMAN...COURTOIS...FREEBURG...IRONDALE...KNOB LICK...LEASBURG...
MINERAL POINT...OLD MINES...OLYMPIAN VILLAGE...PARK HILLS...RICH
FOUNTAIN...RICHWOODS...ROCKY RIDGE AND WEINGARTEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE
WARNED AREA.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.
&&
LAT...LON 3766 9062 3773 9065 3779 9153 3815 9153
3816 9165 3828 9165 3829 9208 3847 9203
3851 9201 3809 9025 3790 8996 3764 9015
$$
GLASS2 follow-up statements
131
WGUS73 KLSX 130916
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
416 AM CDT WED JUL 13 2011
MOC055-071-073-099-151-186-187-221-131430-
/O.CON.KLSX.FF.W.0077.000000T0000Z-110713T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD MO-FRANKLIN MO-GASCONADE MO-JEFFERSON MO-OSAGE MO-
STE. GENEVIEVE MO-ST. FRANCOIS MO-WASHINGTON MO-
416 AM CDT WED JUL 13 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WASHINGTON...ST.
FRANCOIS...STE. GENEVIEVE...SOUTHERN OSAGE...SOUTHERN JEFFERSON...
GASCONADE...SOUTHERN FRANKLIN AND CRAWFORD COUNTIES UNTIL 930 AM
CDT...
AT 411 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
LIGHT TO MODERATE RAINFALL ACROSS THE WARNED AREA. RADAR ESTIMATES 2
TO 4 INCHES OF RAIN HAS FALLEN IN A BAND FROM JUST SOUTH OF LINN TO
CUBA TO POTOSI. THE WASHINGTON COUNTY SHERIFF REPORTED THAT WATER
WAS FLOWING ACROSS PORTIONS OF HIGHWAY F TO THE NORTHWEST OF POTOSI
BETWEEN 130 AM AND 200 AM. LIGHT TO MODERATE RAINFALL IS EXPECTED
THROUGH DAYBREAK WITH ADDITIONAL RAINFALL AMOUNTS UNDER ONE INCH.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ANTHONIES MILL...BISMARCK...BONNE TERRE...BOURBON...CUBA...DE SOTO...
DESLOGE...FARMINGTON...LEADWOOD...OWENSVILLE...POTOSI...STEELVILLE...
SULLIVAN...BLAND...BLOOMSDALE...CHERRYVILLE...COFFMAN...COURTOIS...
FREEBURG...IRONDALE...KNOB LICK...LEASBURG...MINERAL POINT...OLD
MINES...OLYMPIAN VILLAGE...PARK HILLS...RICH FOUNTAIN...RICHWOODS...
ROCKY RIDGE AND WEINGARTEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLASH 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.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
&&
LAT...LON 3766 9062 3773 9065 3779 9153 3815 9153
3816 9165 3828 9165 3829 9208 3847 9203
3851 9201 3809 9025 3790 8996 3764 9015
$$
GLASS841
WGUS73 KLSX 131426
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
926 AM CDT WED JUL 13 2011
MOC055-071-073-099-151-186-187-221-131441-
/O.EXP.KLSX.FF.W.0077.000000T0000Z-110713T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD MO-FRANKLIN MO-GASCONADE MO-JEFFERSON MO-OSAGE MO-
STE. GENEVIEVE MO-ST. FRANCOIS MO-WASHINGTON MO-
926 AM CDT WED JUL 13 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WASHINGTON...ST.
FRANCOIS...STE. GENEVIEVE...SOUTHERN OSAGE...SOUTHERN JEFFERSON...
GASCONADE...SOUTHERN FRANKLIN AND CRAWFORD COUNTIES WILL BE ALLOWED
TO EXPIRE AT 930 AM CDT...
A CHECK WITH LOCAL LAW ENFORCEMENT INDICATED NO ONGOING ISSUES IN
ASSOCIATION WITH THE HEAVY RAINFALL FROM THE OVERNIGHT HOURS.
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 3766 9062 3773 9065 3779 9153 3815 9153
3816 9165 3828 9165 3829 9208 3847 9203
3851 9201 3809 9025 3790 8996 3764 9015
$$
MILLERThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 7:01 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 44 min |
| Jul 13, 3:16 AM CDT | Flash Flood Warning | LSX | Iron, Reynolds | 6 hr |
Nearby
Flash Flood Warnings in Missouri, 2011Every flash flood warning in 2011
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.