Alert archive / Missouri / Flash Flood Warnings in 2011

Flash Flood Warning 27, NWS Springfield, MO

May 1, 20117 counties in Missouri

NWS Springfield, MO issued this flash flood warning at May 1, 2011, 7:51 PM CDT for 7 counties in Missouri. It was in force for 6 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
May 1, 2011, 7:51 PM CDT (00:51 UTC)
Expired
May 2, 2011, 2:00 AM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Douglas County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Shannon County, MO, Taney County, MO, Texas County, MO

The radar

The Springfield radar (KSGF), 175 km from the middle of the area, began a volume at 00:53 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
May 1, 8:00 PM CDTFLASH FLOOD1 W Pottersville, MOMO HWY K FLOODED/CLOSED.
May 2, 1:00 AM CDTFLASH FLOOD7 Ssw Alton, MOLOW WATER CROSSING FLOODED ON ROUTE A OFF OF ROUTE 9. ONE WATER RESCUE CONDUCTED.
May 2, 1:30 AM CDTFLASH FLOOD3 Ne Winona, MOWATER RESCUE ON HIGHWAY H. MOTORIST RESCUED FROM STALLED VEHICLE DURING FLOODING.

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, 0.9 hours before the alert went out and 209 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 2011-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2011-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -151 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
489 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
-151 m²/s²
0-3 km storm-relative helicity
715 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

543 
WGUS53 KSGF 020051
FFWSGF
MOC067-091-149-153-203-213-215-020700-
/O.NEW.KSGF.FF.W.0027.110502T0051Z-110502T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
751 PM CDT SUN MAY 1 2011

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HOWELL COUNTY IN SOUTH CENTRAL MISSOURI...
  OREGON COUNTY IN SOUTH CENTRAL MISSOURI...
  OZARK COUNTY IN SOUTHWEST MISSOURI...
  SHANNON COUNTY IN SOUTH CENTRAL MISSOURI...
  SOUTHEASTERN DOUGLAS COUNTY IN SOUTHWEST MISSOURI...
  SOUTHEASTERN TEXAS COUNTY IN SOUTH CENTRAL MISSOURI...
  TANEY COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 200 AM CDT MONDAY.

* AT 738 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. DOPPLER RADAR HAS INDICATED ONE TO TWO INCHES OF      
  RAINFALL HAS FALLEN IN THE WARN AREA WITH ADDITIONAL HEAVY         
  RAINFALL OF ONE TO TWO INCHES IS EXPECTED DURING THIS EVENING.

* 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 W AT CANEY CREEK JUST EAST OF BROWNBRANCH...
ROUTE H...3 MILES EAST OF WINONA...
HIGHWAY 142 AT THE SPRING RIVER WEST OF LANTON...
HIGHWAY 142 AT THE BENNETTS RIVER WEST OF MOODY...
ROUTE K...3 MILES SOUTHWEST OF POTTERSVILLE.



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 3709 9103 3708 9121 3684 9122 3682 9111
      3649 9113 3650 9332 3669 9330 3733 9118
      3726 9115 3725 9112 3721 9112 3714 9101

$$

GRIFFIN
2 follow-up statements
206 
WGUS73 KSGF 020415
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1115 PM CDT SUN MAY 1 2011

MOC067-091-149-153-203-213-215-020700-
/O.CON.KSGF.FF.W.0027.000000T0000Z-110502T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DOUGLAS MO-HOWELL MO-OREGON MO-OZARK MO-SHANNON MO-TANEY MO-TEXAS MO-
1115 PM CDT SUN MAY 1 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM CDT FOR
HOWELL...OREGON...OZARK...SHANNON...SOUTHEASTERN DOUGLAS...
SOUTHEASTERN TEXAS AND TANEY COUNTIES...

GAGE READINGS AND DOPPLER RADAR INDICATE THAT MODERATE TO HEAVY 
RAINFALL HAS FALLEN OVER THE WARNING AREA OVER THE PAST THREE TO 
FIVE HOURS. RAINFALL AMOUNTS OF ONE TO TWO INCHES HAVE BEEN COMMON 
THIS EVENING...WITH THE HEAVIEST RAIN FALLING FROM THE CABOOL AND 
MOUNTAIN VIEW AREAS SOUTH TO THE ARKANSAS STATE LINE INCLUDING THE 
WEST PLAINS AND MOODY AREAS. 

AN ADDITIONAL INCH OF RAIN WILL BE POSSIBLE OVER PARTS OF SOUTH 
CENTRAL MISSOURI DURING THE OVERNIGHT HOURS. 

THE MISSOURI DEPARTMENT OF TRANSPORTATION REPORTS THAT HWY 142 IS 
CLOSED JUST WEST OF MOODY AND HWY K IS CLOSED JUST WEST OF 
POTTERSVILLE. STREAMS AND LOW WATER CROSSINGS WILL BE ESPECIALLY 
SUSCEPTIBLE TO THE DANGERS OF FLASH FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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 3709 9103 3708 9121 3684 9122 3682 9111
      3649 9113 3650 9332 3669 9330 3733 9118
      3726 9115 3725 9112 3721 9112 3714 9101

$$
DSA
812 
WGUS73 KSGF 020653
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
153 AM CDT MON MAY 2 2011

MOC067-091-149-153-203-213-215-020702-
/O.EXP.KSGF.FF.W.0027.000000T0000Z-110502T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DOUGLAS MO-HOWELL MO-OREGON MO-OZARK MO-SHANNON MO-TANEY MO-TEXAS MO-
153 AM CDT MON MAY 2 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 200 AM CDT FOR HOWELL...
OREGON...OZARK...SHANNON...SOUTHEASTERN DOUGLAS...SOUTHEASTERN TEXAS
AND TANEY COUNTIES...

THE FLASH FLOOD WARNING HAS BEEN REPLACED WITH AN AREAL FLOOD 
WARNING WHICH IS IN EFFECT UNTIL 2 PM MONDAY. 

HEAVY RAINFALL HAS ENDED ACROSS MUCH OF THE WARNING AREA...HOWEVER 
RESIDUAL FLOODING WILL CONTINUE THROUGH THE MORNING HOURS TODAY.


LAT...LON 3709 9103 3708 9121 3684 9122 3682 9111
      3649 9113 3650 9332 3669 9330 3733 9118
      3726 9115 3725 9112 3721 9112 3714 9101

$$

LINDENBERG

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 7:21 PM CDTSpecial Weather StatementSGFOregon24 min
May 1, 7:25 PM CDTRiver Flood WarningSGFPulaski65 hr
May 1, 7:40 PM CDTFlash Flood WarningSGFBarry, Christian, Greene, Lawrence, Stone, Webster3 hr
May 1, 9:02 PM CDTRiver Flood WarningSGFShannon23 hr
May 1, 9:02 PM CDTRiver Flood WarningSGFShannon23 hr
May 1, 9:09 PM CDTFlash Flood WarningSGFDent, Phelps, Pulaski, Shannon, Texas5 hr
May 2, 1:51 AM CDTAreal Flood WarningSGFDent, Douglas, Howell, Oregon, Ozark, Phelps and 4 more36 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.