Alert archive / Missouri / Flash Flood Warnings in 2012

Flash Flood Warning 28, NWS Springfield, MO

September 27, 2012Douglas County, Missouri

NWS Springfield, MO issued this flash flood warning at Sep 27, 2012, 3:01 AM CDT for Douglas County, Missouri. It was in force for 6 hr. 6 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
Sep 27, 2012, 3:01 AM CDT (08:01 UTC)
Expired
Sep 27, 2012, 9:00 AM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

County Douglas County, MO

The radar

The Springfield radar (KSGF), 81 km from the middle of the area, began a volume at 08:05 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
Sep 27, 5:00 AM CDTHEAVY RAIN 4.17 E Dogwood, MORELAYED BY LOCAL MEDIA...4.10 INCHES OF RAINFALL MEASURED AS OF 5 AM ALONG WITH DIME SIZED HAIL FROM OVERNIGHT STORMS.
Sep 27, 6:00 AM CDTHEAVY RAIN 3.758 S Norwood, MOPUBLIC REPORT RELAYED BY MEDIA...3.75 INCHES OF RAINFALL FROM OVERNIGHT STORMS.
Sep 27, 6:00 AM CDTHEAVY RAIN 4Vanzant, MOPUBLIC REPORT RELAYED BY MEDIA...STORM TOTAL RAINFALL OF 4 INCHES.
Sep 27, 6:08 AM CDTFLASH FLOOD3 W Ava, MOLAW ENFORCEMENT REPORTED A MAN WAS SWEPT OFF INTO HIGH WATER ON ROUTE Y AT COWSKIN CREEK WEST OF AVA. ROUTE Y AT THAT LOCATION IS FLOODED AND IMPASSABLE DUE TO HIGH WATER.
Sep 27, 6:08 AM CDTFLASH FLOOD4 Wnw Ava, MOLAW ENFORCEMENT REPORTED A MAN WAS SWEPT OFF INTO HIGH WATER ON ROUTE Y AT COWSKIN CREEK WEST OF AVA. ROUTE Y AT THAT LOCATION IS FLOODED AND IMPASSABLE DUE TO HIGH WATER.
Sep 27, 7:00 AM CDTFLASH FLOOD4 Nnw Brushyknob, MOREPORTED BY MODOT ON BRYANT 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 00:00Z, 8.0 hours before the alert went out and 108 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 2012-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 440 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 00:00Z on 2012-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
440 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
903 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
170 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

722 
WGUS53 KSGF 270801
FFWSGF
MOC067-271400-
/O.NEW.KSGF.FF.W.0028.120927T0801Z-120927T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
301 AM CDT THU SEP 27 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DOUGLAS COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 900 AM CDT.

* AT 248 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. DOPPLER RADAR HAS ESTIMATED 2 TO 4 INCHES OF RAINFALL 
  HAS FALLEN IN THE WARNED AREA. AN ADDITIONAL 1 TO 2 INCHES         
  OF RAINFALL IS POSSIBLE WITH TRAINING OF THUNDERSTORMS.

* 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 FF AT HUNTER CREEK EAST OF AVA...
ROUTE FF AT TURKEY CREEK EAST OF AVA...
ROUTE Y AT COWSKIN CREEK 3 MILES WEST OF AVA...
ROUTE U AT BRYANT CREEK NORTHWEST OF BRUSHYKNOB...
ROUTE EE AT THE NORTH FORK NORTHEAST VANZANT.


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.

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 3681 9291 3707 9290 3705 9209 3680 9210

$$

GRIFFIN
2 follow-up statements
394 
WGUS73 KSGF 271022
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
522 AM CDT THU SEP 27 2012

MOC067-271400-
/O.CON.KSGF.FF.W.0028.000000T0000Z-120927T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DOUGLAS MO-
522 AM CDT THU SEP 27 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 AM CDT FOR
DOUGLAS COUNTY...

AT 515 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW
MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
DOPPLER RADAR ESTIMATES BETWEEN 2 TO 5 INCHES OF RAINFALL HAS FALLEN 
IN THE WARNED AREA.

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 FF AT HUNTER CREEK EAST OF AVA...
ROUTE FF AT TURKEY CREEK EAST OF AVA...
ROUTE Y AT COWSKIN CREEK 3 MILES WEST OF AVA...
ROUTE U AT BRYANT CREEK NORTHWEST OF BRUSHYKNOB...
ROUTE EE AT THE NORTH FORK NORTHEAST VANZANT.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF UP TO AN INCH ARE POSSIBLE IN THE 
WARNED AREA ESPECIALLY OVER PORTIONS OF NORTHERN DOUGLAS COUNTY.

&&

LAT...LON 3681 9291 3707 9290 3705 9209 3680 9210

$$

GRIFFIN
109 
WGUS73 KSGF 271107
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
607 AM CDT THU SEP 27 2012

MOC067-271400-
/O.CON.KSGF.FF.W.0028.000000T0000Z-120927T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DOUGLAS MO-
607 AM CDT THU SEP 27 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 AM CDT FOR
DOUGLAS COUNTY...

AT 557 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT 
EXCESSIVE RAINFALL FROM OVERNIGHT THUNDERSTORMS WAS PRODUCING FLASH 
FLOODING ACROSS THE WARNED AREA. DOPPLER RADAR IS ESTIMATING BETWEEN 
2 AND 5 INCHES OF RAINFALL HAS FALLEN IN THE WARNED AREA. 

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 FF AT HUNTER CREEK EAST OF AVA...
ROUTE FF AT TURKEY CREEK EAST OF AVA...
ROUTE Y AT COWSKIN CREEK 3 MILES WEST OF AVA...
ROUTE U AT BRYANT CREEK NORTHWEST OF BRUSHYKNOB...
ROUTE EE AT THE NORTH FORK NORTHEAST VANZANT.

LOCAL LAW ENFORCEMENT IS REPORTING COWSKIN CREEK IS FLOODING ROUTE Y 
AND IS IMPASSABLE WEST OF AVA.

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 3681 9291 3707 9290 3705 9209 3680 9210

$$

GRIFFIN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 7:32 PM CDTSpecial Weather StatementSGFNewton43 min
Sep 26, 7:35 PM CDTSpecial Weather StatementSGFStone40 min
Sep 26, 7:40 PM CDTSevere Thunderstorm WarningSGFBarry, Stone33 min
Sep 26, 7:49 PM CDTSevere Thunderstorm WarningSGFMcDonald41 min
Sep 26, 8:04 PM CDTSevere Thunderstorm WarningSGFMcDonald26 min
Sep 26, 9:03 PM CDTSpecial Weather StatementSGFChristian42 min
Sep 26, 9:07 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Stone, Taney38 min
Sep 26, 9:41 PM CDTSevere Thunderstorm WarningSGFChristian, Ozark, Taney29 min
Sep 26, 11:08 PM CDTSpecial Weather StatementSGFOzark52 min
Sep 26, 11:09 PM CDTSpecial Weather StatementSGFChristian51 min
Sep 26, 11:19 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Taney17 min
Sep 26, 11:21 PM CDTSevere Thunderstorm WarningSGFDouglas, Ozark, Taney39 min
Sep 26, 11:38 PM CDTSpecial Weather StatementSGFOregon52 min
Sep 27, 12:21 AM CDTSpecial Weather StatementSGFDouglas24 min
Sep 27, 1:37 AM CDTSpecial Weather StatementSGFCarter23 min
Sep 27, 1:39 AM CDTSpecial Weather StatementSGFWebster51 min
Sep 27, 2:04 AM CDTSpecial Weather StatementSGFHowell41 min
Sep 27, 8:53 AM CDTAreal Flood WarningSGFDouglas, Webster, Wright3 hr
Sep 27, 11:57 AM CDTAreal Flood AdvisorySGFDouglas, Ozark, Webster, Wright6 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.