Alert archive / Missouri / Flash Flood Warnings in 2011

Flash Flood Warning 23, NWS Springfield, MO

April 25, 2011Dallas County, Laclede County, Missouri

NWS Springfield, MO issued this flash flood warning at Apr 25, 2011, 7:47 PM CDT for Dallas County, Laclede County, Missouri. It was in force for 6 hr. 1 report 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
Apr 25, 2011, 7:47 PM CDT (00:47 UTC)
Expired
Apr 26, 2011, 2:00 AM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Dallas County, MO, Laclede County, MO

The radar

The Springfield radar (KSGF), 94 km from the middle of the area, began a volume at 00:49 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

TimeReportWhereRemark
Apr 25, 9:20 PM CDTFLASH FLOODBennett Springs, MOWATER IS RISING RAPIDLY IN BENNETT SPRINGS STATE PARK.

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, 0.8 hours before the alert went out and 144 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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2011-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 32 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2011-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -77 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
32 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
873 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
-77 m²/s²
0-3 km storm-relative helicity
-273 m²/s²
Significant tornado parameter
0.0
Supercell composite
-15.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

706 
WGUS53 KSGF 260047
FFWSGF
MOC059-105-260700-
/O.NEW.KSGF.FF.W.0023.110426T0047Z-110426T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
747 PM CDT MON APR 25 2011

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL DALLAS COUNTY IN SOUTHWEST MISSOURI...
  LACLEDE COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 200 AM CDT TUESDAY.

* AT 739 PM CDT...A BAND OF THUNDERSTORMS PRODUCING MODERATE 
RAINFALL HAS MOVED THROUGH BENNET SPRINGS AREA. THE LACLEDE COUNTY 
EMERGENCY MANAGEMENT OFFICE REPORTED THAT MUD WAS WITNESSED BUBBLING 
IN BENNETT SPRINGS STATE PARK.  THIS PHENOMENA LEADS TO THE FLASH 
FLOODING DEVELOPING WITHIN THE HOUR IN THE PARK.

* VISITORS IN BENNETT SPRINGS SHOULD LEAVE LOW LYING AREAS 
IMMEDIATELY. RUNOFF WILL ALSO CAUSE FLOOD WATERS TO RISE RAPIDLY 
WITHIN ALREADY FLOODED LOW WATER CROSSINGS AND OTHER FLOOD PRONE 
AREAS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
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 3783 9241 3771 9241 3761 9237 3750 9234
      3749 9288 3779 9289 3782 9257 3780 9256
      3782 9250

$$

RUNNELS
2 follow-up statements
171 
WGUS73 KSGF 260218
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
918 PM CDT MON APR 25 2011

MOC059-105-260700-
/O.CON.KSGF.FF.W.0023.000000T0000Z-110426T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LACLEDE MO-DALLAS MO-
918 PM CDT MON APR 25 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM CDT FOR EAST
CENTRAL DALLAS AND LACLEDE COUNTIES...

AT 912 PM CDT...LACLEDE COUNTY EMERGENCY MANAGEMENT HAS REPORTED 
THAT FLASH FLOODING IS OCCURRING IN BENNETT SPRING STATE 
PARK...WHERE WATER IS RISING RAPIDLY. ELSEWHERE ACROSS THE WARNED 
AREA...NUMEROUS ROADS ARE CLOSED DUE TO FLOODING AND FLASH FLOODING. 

RUNOFF FROM THIS EXCESSIVE RAINFALL IS CAUSING FLASH FLOODING.
CREEKS...STREAMS AND LOW WATER CROSSINGS WILL BE ESPECIALLY
SUSCEPTIBLE TO THE DANGERS OF FLASH FLOODING.

THIS WARNING INCLUDES BUT IS NOT LIMITED TO THE FOLLOWING LOW WATER
CROSSINGS...

ROUTE B...2 MILES WEST OF CONWAY...
ROUTE B AT COBB CREEK 8 MILES SOUTHEAST OF LEBANON...
ROUTE O AT COBB CREEK 5 MILES NORTHWEST OF COMPETITION...
NEXUS DRIVE EAST OF PHILLIPSBURG...
ROUTE B AT THE OSAGE FORK SOUTHEAST OF LEBANON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

&&

LAT...LON 3783 9241 3771 9241 3761 9237 3750 9234
      3749 9288 3779 9289 3782 9257 3780 9256
      3782 9250

$$

BOXELL
067 
WGUS73 KSGF 260342
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1042 PM CDT MON APR 25 2011

MOC059-105-260700-
/O.CON.KSGF.FF.W.0023.000000T0000Z-110426T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LACLEDE MO-DALLAS MO-
1042 PM CDT MON APR 25 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM CDT FOR EAST
CENTRAL DALLAS AND LACLEDE COUNTIES...

AT 1035 PM CDT...LACLEDE COUNTY EMERGENCY MANAGEMENT HAS REPORTED 
THAT FLASH FLOODING IS OCCURRING IN BENNETT SPRING STATE 
PARK...WHERE WATER IS RISING RAPIDLY. ELSEWHERE ACROSS THE WARNED 
AREA...NUMEROUS ROADS ARE CLOSED DUE TO FLOODING AND FLASH FLOODING. 

RUNOFF FROM THIS EXCESSIVE RAINFALL IS CAUSING FLASH FLOODING. SOME
LOCATIONS THAT MAY EXPERIENCE FLASH FLOODING INCLUDE...BENNETT SPRING
STATE PARK...BENNETT SPRINGS...CONWAY...DRY KNOB...FALCON...
LEBANON...MORGAN...PHILLIPSBURG...SLEEPER...STOUTLAND AND TWIN
BRIDGES. CREEKS...STREAMS AND LOW WATER CROSSINGS WILL BE ESPECIALLY
SUSCEPTIBLE TO THE DANGERS OF FLASH FLOODING.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE.

&&

LAT...LON 3783 9241 3771 9241 3761 9237 3750 9234
      3749 9288 3779 9289 3782 9257 3780 9256
      3782 9250

$$

The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 2:00 AM CDTAreal Flood WarningSGFDent, Douglas, Howell, Oregon, Ozark, Shannon and 3 more66 hr
Apr 26, 2:05 AM CDTAreal Flood WarningSGFBarry, Benton, Christian, Dade, Dallas, Greene and 7 more37 hr
Apr 26, 2:15 AM CDTAreal Flood WarningSGFJasper, McDonald, Newton37 hr
Apr 26, 8:00 AM CDTFlash Flood WarningSGFBarry, Stone, Taney16 hr
Apr 26, 5:40 PM CDTSpecial Weather StatementSGFBarry, McDonald35 min
Apr 26, 5:53 PM CDTSevere Thunderstorm WarningSGFBarry, McDonald, Newton37 min
Apr 26, 6:47 PM CDTSevere Thunderstorm WarningSGFBarry, Stone17 min

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.