Alert archive / Missouri / Flash Flood Warnings in 2012

Flash Flood Warning 13, NWS Springfield, MO

April 29, 20124 counties in Missouri

NWS Springfield, MO issued this flash flood warning at Apr 29, 2012, 8:33 AM CDT for 4 counties in Missouri. It was in force for 5 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 29, 2012, 8:33 AM CDT (13:33 UTC)
Expired
Apr 29, 2012, 2:00 PM CDT
In force
5 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Camden County, MO, Dallas County, MO, Hickory County, MO, Polk County, MO

The radar

The Springfield radar (KSGF), 89 km from the middle of the area, began a volume at 13:32 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 29, 1:02 PM CDTFLASH FLOOD6 Sw Urbana, MOMODOT REPORTED WATER OVER STATE HIGHWAY HH AT INGLES CREEK

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 12:00Z, 1.6 hours before the alert went out and 139 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 2012-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1600 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 2012-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 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
1600 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
860 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.8
Supercell composite
2.9

Open this sounding in Storm Lab

The text

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

079 
WGUS53 KSGF 291333
FFWSGF
MOC029-059-085-167-291900-
/O.NEW.KSGF.FF.W.0013.120429T1333Z-120429T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
833 AM CDT SUN APR 29 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN POLK COUNTY IN SOUTHWEST MISSOURI...
  NORTHERN DALLAS COUNTY IN SOUTHWEST MISSOURI...
  SOUTHEASTERN HICKORY COUNTY IN CENTRAL MISSOURI...
  WESTERN CAMDEN COUNTY IN CENTRAL MISSOURI...

* UNTIL 200 PM CDT.

* AT 823 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RAINFALL ESTIMATES BETWEEN 2 AND 3 INCHES HAVE        
  OCCURRED OVER THE PAST FEW HOURS. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. 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 P...2 MILES SOUTH OF HIGHWAY 64...
ROUTE HH...1 MILE EAST OF URBANA...
ROUTE HH AT INGALLS CREEK NEAR AC HIGHWAY IN POLK COUNTY...
ROUTE BB AT CAHOOCHIE CREEK NORTHEAST OF URBANA...
ROUTE P AT LINDLEY CREEK 3 MILES NORTHEAST OF GOODSON.

RIVER GAUGES ON THE LINDLEY CREEK IN POLK COUNTY AND THE LITTLE 
NIANGUA RIVER IN NORTHERN DALLAS AND SOUTHERN CAMDEN COUNTY HAVE 
ALREADY SEEN RISES OF 3 TO 4 FEET OVER THE PAST HOUR. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA THROUGH THE REMAINDER OF THE MORNING AND INTO THIS 
AFTERNOON AS ADDITIONAL THUNDERSTORMS MOVE ACROSS THE REGION.

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 3819 9277 3807 9274 3791 9279 3789 9281
      3789 9286 3784 9287 3762 9334 3789 9336

$$

HATCH
2 follow-up statements
305 
WGUS73 KSGF 291546
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1046 AM CDT SUN APR 29 2012

MOC029-059-085-167-291900-
/O.CON.KSGF.FF.W.0013.000000T0000Z-120429T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN MO-HICKORY MO-POLK MO-DALLAS MO-
1046 AM CDT SUN APR 29 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
NORTHEASTERN POLK...NORTHERN DALLAS...SOUTHEASTERN HICKORY AND
WESTERN CAMDEN COUNTIES...

AT 1038 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED 
AREA. RAINFALL ESTIMATES BETWEEN 2 AND 3 INCHES HAVE OCCURRED OVER 
THE PAST FEW HOURS.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. 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 P...2 MILES SOUTH OF HIGHWAY 64...
ROUTE HH...1 MILE EAST OF URBANA...
ROUTE HH AT INGALLS CREEK NEAR AC HIGHWAY IN POLK COUNTY...
ROUTE BB AT CAHOOCHIE CREEK NORTHEAST OF URBANA...
ROUTE P AT LINDLEY CREEK 3 MILES NORTHEAST OF GOODSON.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3819 9277 3807 9274 3791 9279 3789 9281
      3789 9286 3784 9287 3762 9334 3789 9336

$$

GRIFFIN
530 
WGUS73 KSGF 291852
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
152 PM CDT SUN APR 29 2012

MOC029-059-085-167-291903-
/O.EXP.KSGF.FF.W.0013.000000T0000Z-120429T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN MO-HICKORY MO-POLK MO-DALLAS MO-
152 PM CDT SUN APR 29 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 200 PM CDT FOR NORTHEASTERN
POLK...NORTHERN DALLAS...SOUTHEASTERN HICKORY AND WESTERN CAMDEN
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 3819 9277 3807 9274 3791 9279 3789 9281
      3789 9286 3784 9287 3762 9334 3789 9336

$$

GRIFFIN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 4:18 AM CDTDense Fog AdvisorySGFCamden, Dallas, Laclede, Maries, Miller, Morgan and 2 more6 hr
Apr 29, 4:59 AM CDTSevere Thunderstorm WarningSGFBarton, Vernon46 min
Apr 29, 5:08 AM CDTSevere Thunderstorm WarningSGFCedar, Dade, Hickory, Polk52 min
Apr 29, 5:25 AM CDTSevere Thunderstorm WarningSGFBarton, Cedar, St. Clair, Vernon50 min
Apr 29, 5:43 AM CDTSevere Thunderstorm WarningSGFCamden, Dallas, Hickory32 min
Apr 29, 5:58 AM CDTSevere Thunderstorm WarningSGFCedar, Dade62 min
Apr 29, 6:35 AM CDTSevere Thunderstorm WarningSGFCamden, Dallas, Hickory40 min
Apr 29, 6:47 AM CDTSevere Thunderstorm WarningSGFPolk27 min
Apr 29, 7:20 AM CDTSpecial Weather StatementSGFDade40 min
Apr 29, 7:26 AM CDTSpecial Weather StatementSGFMiller49 min
Apr 29, 8:14 AM CDTAreal Flood AdvisorySGFBarton, Camden, Cedar, Dade, Dallas, Hickory and 1 more6 hr
Apr 29, 8:38 AM CDTSpecial Weather StatementSGFGreene37 min
Apr 29, 9:07 AM CDTSpecial Weather StatementSGFDallas23 min
Apr 29, 9:32 AM CDTSpecial Weather StatementSGFLaclede28 min
Apr 29, 2:53 PM CDTFlash Flood WatchSGFBarry, Barton, Benton, Camden, Cedar, Dade and 15 more40 hr

Nearby

Flash Flood Warnings in Missouri, 2012Every flash flood warning in 2012

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.