Alert archive / Missouri / Flash Flood Warnings in 2011

Flash Flood Warning 61, NWS Springfield, MO

August 8, 2011Dallas County, Polk County, Missouri

NWS Springfield, MO issued this flash flood warning at Aug 8, 2011, 12:09 PM CDT for Dallas County, Polk County, 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 8, 2011, 12:09 PM CDT (17:09 UTC)
Expired
Aug 8, 2011, 6:00 PM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Dallas County, MO, Polk County, MO

The radar

The Springfield radar (KSGF), 57 km from the middle of the area, began a volume at 17:10 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 12:00Z, 5.2 hours before the alert went out and 107 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 12:00Z on 2011-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 107 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2011-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -115 square meters per square second.19395878Sfc1 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
107 J/kg
Mixed-layer CIN
-274 J/kg
Mixed-layer LCL
1571 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-115 m²/s²
0-3 km storm-relative helicity
-24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

166 
WGUS53 KSGF 081709
FFWSGF
MOC059-167-082300-
/O.NEW.KSGF.FF.W.0061.110808T1709Z-110808T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1209 PM CDT MON AUG 8 2011

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN POLK COUNTY IN SOUTHWEST MISSOURI...
  WEST CENTRAL DALLAS COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 600 PM CDT.

* AT 1205 PM CDT...THE DEPARTMENT OF TRANSPORTATION INDICATED THAT   
  EXCESSIVE RAINFALL WAS PRODUCING FLASH FLOODING ALONG THE LINDLEY  
  CREEK BASIN.  FLOODING ALONG LINDLEY CREEK IMPACTS A FEW STATE AND 
  COUNTY ROADS ACROSS WEST CENTRAL DALLAS COUNTY AND NORTHEASTERN    
  POLK COUNTY...INCLUDING HIGHWAY C NORTHWEST OF BUFFALO.

* 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 C NORTH OF BUFFALO AT LINDLEY CREEK...
HIGHWAY 32 EAST OF BUFFALO AT GREASY CREEK...
ROUTE P...2 MILES SOUTH OF HIGHWAY 64...
ROUTE HH AT INGALLS CREEK NEAR AC HIGHWAY IN POLK COUNTY...
ROUTE P AT LINDLEY CREEK 3 MILES NORTHEAST OF GOODSON.

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 3778 9315 3771 9310 3764 9306 3762 9308
      3763 9315 3769 9325 3772 9327 3781 9329
      3780 9320

$$

CRAMER
2 follow-up statements
846 
WGUS73 KSGF 082039
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
339 PM CDT MON AUG 8 2011

MOC059-167-082300-
/O.CON.KSGF.FF.W.0061.000000T0000Z-110808T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
POLK MO-DALLAS MO-
339 PM CDT MON AUG 8 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
NORTHEASTERN POLK AND WEST CENTRAL DALLAS COUNTIES...

AT 333 PM CDT...THE DEPARTMENT OF TRANSPORTATION INDICATED THAT 
EXCESSIVE RAINFALL WAS PRODUCING FLASH FLOODING ALONG LINDLEY CREEK. 
THIS CREEK RUNS THROUGH WEST CENTRAL DALLAS COUNTY AND NORTHEASTERN 
POLK COUNTY.  SEVERAL ROADS THAT CROSSES LINDLEY CREEK WERE FLOODED 
AND IMPASSABLE TO MOTORISTS...INCLUDING HIGHWAY C NORTHWEST OF 
BUFFALO. ADDITIONAL RAINFALL THIS EVENING AND TONIGHT MAY EITHER 
SUSTAIN THIS FLOODING...OR CAUSE THE FLOODING TO BECOME WORSE.

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 C NORTH OF BUFFALO AT LINDLEY CREEK...
HIGHWAY 32 EAST OF BUFFALO AT GREASY CREEK...
ROUTE P...2 MILES SOUTH OF HIGHWAY 64.

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 3778 9315 3771 9310 3764 9306 3762 9308
      3763 9315 3769 9325 3772 9327 3781 9329
      3780 9320

$$

CRAMER
844 
WGUS73 KSGF 082255
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
555 PM CDT MON AUG 8 2011

MOC059-167-082306-
/O.EXP.KSGF.FF.W.0061.000000T0000Z-110808T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
POLK MO-DALLAS MO-
555 PM CDT MON AUG 8 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 600 PM CDT FOR NORTHEASTERN
POLK AND WEST CENTRAL DALLAS COUNTIES...

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 3778 9315 3771 9310 3764 9306 3762 9308
      3763 9315 3769 9325 3772 9327 3781 9329
      3780 9320

$$

BOXELL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 7:10 PM CDTSevere Thunderstorm WarningSGFTexas, Wright65 min
Aug 7, 7:44 PM CDTSevere Thunderstorm WarningSGFDent, Shannon, Texas61 min
Aug 7, 7:46 PM CDTSevere Thunderstorm WarningSGFDouglas, Howell, Oregon, Ozark, Shannon, Texas59 min
Aug 7, 8:30 PM CDTSevere Thunderstorm WarningSGFOregon, Shannon45 min
Aug 8, 1:35 AM CDTSevere Thunderstorm WarningSGFMiller, Morgan19 min
Aug 8, 2:32 AM CDTSpecial Weather StatementSGFDallas28 min
Aug 8, 7:04 AM CDTSpecial Weather StatementSGFCedar56 min
Aug 8, 6:27 PM CDTSpecial Weather StatementSGFTaney33 min
Aug 8, 6:46 PM CDTSevere Thunderstorm WarningSGFMcDonald, Newton29 min
Aug 8, 6:51 PM CDTSevere Thunderstorm WarningSGFBarry, Ozark, Stone, Taney40 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.