Alert archive / Missouri / Flash Flood Warnings in 2009

Flash Flood Warning 176, NWS Springfield, MO

October 22, 2009Dent County, Phelps County, Missouri

NWS Springfield, MO issued this flash flood warning at Oct 22, 2009, 9:01 PM CDT for Dent County, Phelps County, Missouri. It was in force for 3 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: Oct 22, 2009, 9:01 PM CDT (02:01 UTC)
Expired: Oct 23, 2009, 12:00 AM CDT
In force: 3 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Flood severity: None

Counties Dent County, MO, Phelps County, MO

The radar

The St Louis radar (KLSX), 128 km from the middle of the area, began a volume at 02:03 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.0 hours before the alert went out and 226 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 570 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -52 m²/s²
0-3 km storm-relative helicity: 35 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.

000 
WGUS53 KSGF 230201
FFWSGF
MOC065-161-230500-
/O.NEW.KSGF.FF.W.0176.091023T0201Z-091023T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
901 PM CDT THU OCT 22 2009

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DENT COUNTY IN SOUTH CENTRAL MISSOURI...
  EASTERN PHELPS COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL MIDNIGHT CDT.

* AT 900 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  AN AREA OF VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RADAR 
  ESTIMATES THAT AN INCH TO AN INCH AND A HALF OF RAIN HAS ALREADY 
  FALLEN ACROSS THE WARNED AREA...WITH AN ADDITIONAL HALF INCH TO 
  ONE INCH OF RAINFALL POSSIBLE THROUGH LATE 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 Y NORTHWEST OF ROLLA...
HIGHWAY 119 AT PIGEON CREEK NEAR MONTAUK STATE PARK...
ROUTE DD AT DRY FORK NORTHWEST OF SALEM...
ROUTE H AT LITTLE PINEY CREEK SOUTHEAST OF EDGAR SPRINGS...
ROUTE TT AT CROOKED CREEK JUST EAST OF SLIGO.

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 3758 9117 3758 9131 3751 9131 3750 9121
      3742 9123 3743 9176 3759 9176 3760 9183
      3805 9190 3805 9164 3816 9164 3816 9154
      3780 9153 3779 9132 3771 9131 3769 9116

$$

SCHAUMANN

2 follow-up statements

000 
WGUS73 KSGF 230343
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1043 PM CDT THU OCT 22 2009

MOC065-161-230500-
/O.CON.KSGF.FF.W.0176.000000T0000Z-091023T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PHELPS MO-DENT MO-
1043 PM CDT THU OCT 22 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
DENT AND EASTERN PHELPS COUNTIES...

AT 1043 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE HEAVY RAINFALL HAD ENDED ACROSS THE WARNED AREA. 
HOWEVER...A LARGE PART OF THE WARNED AREA RECEIVED ONE TO TWO INCHES 
OF RAINFALL EARLIER THIS EVENING...WITH ISOLATED HIGHER AMOUNTS 
ACROSS SOUTHERN DENT COUNTY. THE THREAT FOR FLASH FLOODING WILL 
THEREFORE CONTINUE FOR THE REMAINDER OF 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 Y NORTHWEST OF ROLLA...
HIGHWAY 119 AT PIGEON CREEK NEAR MONTAUK STATE PARK...
ROUTE DD AT DRY FORK NORTHWEST OF SALEM...
ROUTE H AT LITTLE PINEY CREEK SOUTHEAST OF EDGAR SPRINGS...
ROUTE TT AT CROOKED CREEK JUST EAST OF SLIGO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3758 9117 3758 9131 3751 9131 3750 9121
      3742 9123 3743 9176 3759 9176 3760 9183
      3805 9190 3805 9164 3816 9164 3816 9154
      3780 9153 3779 9132 3771 9131 3769 9116

$$

SCHAUMANN

000 
WGUS73 KSGF 230455 RRA
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1155 PM CDT THU OCT 22 2009

MOC065-161-230506-
/O.EXP.KSGF.FF.W.0176.000000T0000Z-091023T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PHELPS MO-DENT MO-
1155 PM CDT THU OCT 22 2009

...THE FLASH FLOOD WARNING WILL EXPIRE AT MIDNIGHT CDT FOR DENT AND
EASTERN PHELPS COUNTIES...

THE FLASH FLOOD WARNING HAS BEEN REPLACED BY AN AREAL FLOOD WARNING 
FOR SMALL STREAMS UNTIL 1000 AM CDT FRIDAY.

LAT...LON 3758 9117 3758 9131 3751 9131 3750 9121
      3742 9123 3743 9176 3759 9176 3760 9183
      3805 9190 3805 9164 3816 9164 3816 9154
      3780 9153 3779 9132 3771 9131 3769 9116

$$

SCHAUMANN

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Springfield, MO wrote its last area forecast discussion before this flash flood warning went out at Oct 22, 6:04 PM CDT, 2 hours 57 minutes earlier.

Area forecast discussion, Oct 22, 6:04 PM CDT, 2 hours 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
604 PM CDT THU OCT 22 2009

...UPDATE TO AVIATION...

.DISCUSSION...

MAIN FORECAST CHALLENGES IN THIS FORECAST PACKAGE WILL DEAL WITH
RAIN EXITING TO THE EAST TONIGHT....THEN WITH PRECIPITATION LATE
IN THE WEEKEND AND AGAIN DURING THE MIDDLE OF NEXT WEEK.

CURRENTLY...AREA OF SURFACE LOW PRESSURE IS CENTERED OVER THE
MIDDLE OF WESTERN HALF OF THE CWA. A COLD FRONT EXTENDS TO THE
SOUTH OF THIS LOW AND IS CURRENTLY JUST WEST OF HIGHWAY 65. A
SHIELD OF LIGHT TO OCCASIONAL MODERATE RAINFALL COVERS THE EASTERN
CWA...GENERALLY EAST OF HIGHWAY 65 AHEAD OF THE SYSTEM. TO THE
WEST A DRY SLOT IS BUILDING INTO THE AREA...LIMITING THE
PRECIPITATION TO MORE OF A DRIZZLE AND OR SPRINKLES VARIETY.

AN AREA OF MODERATE RAINFALL CURRENTLY EXTENDS FROM CENTRAL
ARKANSAS INTO NORTHWESTERN ARKANSAS THIS AFTERNOON. AS THE LOW
LIFTS TO THE NORTHEAST OVER THE NEXT SEVERAL HOURS...THIS
MODERATE RAINFALL WILL LIKELY ROTATE INTO SOUTH CENTRAL MISSOURI.
THE RAINFALL RATES WITH THIS ACTIVITY ARE NOT OVERLY
IMPRESSIVE...AS THEY ARE GENERALLY A QUARTER TO HALF INCH PER
HOUR. HOWEVER...IF THIS ACTIVITY TRAINS OVER THE SAME LOCATION
FOR SEVERAL HOURS RAINFALL AMOUNTS WILL ACCUMULATE. WITH THE
SATURATED GROUNDS...STILL CANNOT RULE OUT LOCALIZED FLOODING
ACROSS FAR SOUTH CENTRAL MISSOURI THIS EVENING. THE OVERALL THREAT
FOR FLOODING IS LOW...HOWEVER CANNOT BE COMPLETELY RULED OUT YET.

BY MIDNIGHT THE RAINFALL SHOULD GENERALLY TAPER OFF...AS THE LOW
SHIFTS OFF TO THE NORTHEAST AND THE MID LEVEL DRY SLOT PUNCHES
INTO THE REGION. LOW CLOUDS AND PERIODS OF DRIZZLE WILL REMAIN
OVER THE AREA INTO SATURDAY. A COOLER AIRMASS WILL FILTER INTO THE
REGION TONIGHT BEHIND THE FRONT. WITH THE CLOUD COVER AND COOL
AIRMASS...FRIDAY HIGHS WILL LIKELY REMAIN IN THE 40S ACROSS MUCH
OF THE AREA...RESULTING IN A COOL AND DREARY DAY TOMORROW.
TEMPERATURES WILL RECOVER SOME THIS WEEKEND AS AN UPPER LEVEL
SHORTWAVE RIDGE BUILDS OVER THE AREA.

AN UPPER LEVEL SHORTWAVE TROUGH WILL DIVE OUT OF THE NORTHERN
PLAINS LATE THIS WEEKEND. AN ASSOCIATED COLD FRONT WILL PUSH INTO
THE AREA LATE SUNDAY INTO SUNDAY NIGHT. MOISTURE WILL STILL BE
SOMEWHAT LIMITED...SO INSTABILITY WILL LIKELY BE LIMITED AS WELL.
THINK THERE WILL BE ENOUGH MOISTURE FOR A SOME SCATTERED SHOWERS
ALONG THE FRONT...BUT HAVE LEFT THUNDER OUT AT THIS TIME DUE TO
THE LACK OF INSTABILITY.

A STRONGER STORM SYSTEM WILL AFFECT THE REGION DURING THE MIDDLE
OF NEXT WEEK. MEDIUM MODELS CONTINUE TO DIFFER FROM EACH OTHER AND
FROM RUN TO RUN WITH THIS SYSTEM. SO THE EXACT TIMING AND TRACK OF
THIS SYSTEM IS STILL UNCLEAR. WHAT IS KNOWN IS THAT A COLD FRONT
WILL PUSH THROUGH THE AREA...AND SHOULD BE THE FOCUS FOR SHOWERS
AND THUNDERSTORMS. WILL GET A BETTER HANDLE ON THIS SYSTEM WITH
FUTURE MODEL RUNS.

WISE

&&

.AVIATION...

FOR THE 00Z TAFS...FRONT HAS MADE IT THROUGH ALL THREE
AIRFIELDS...WITH PRECIP ENDING ACROSS SOUTHWEST MISSOURI. THERE IS
A DRY SLOT SEEN ON VISIBLE SATELLITE IMAGERY THAT LOOKS TO BE OVER
THE SGF AERODROME AT THIS TIME...LEADING TO MVFR CEILINGS. BELIEVE
THIS WILL BE SHORT LIVED AS WEST TO NORTHWEST UPSLOPE FLOW
CONTINUES OVERNIGHT. WITH COOLING AFTER SUNSET...WOULD EXPECT
SOLID IFR TO LIFR CEILINGS TO OVERTAKE ALL THREE AIRPORTS. EXPECT
THIS TO REMAIN OVERNIGHT UNTIL THE LOW LEVEL THERMAL TROUGH MOVES
THROUGH FRIDAY MORNING FOR JLN AND MORE TOWARDS NOON/18Z FOR SGF
AND BBG. MVFR CEILINGS EXPECTED AFTER THIS PASSAGE.

CLAYCOMB

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&

Hazardous weather outlook, Oct 22, 7:36 PM CDT, 1 hour 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
736 PM CDT THU OCT 22 2009

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-231200-
BOURBON-CRAWFORD-CHEROKEE-BENTON-MORGAN-MILLER-MARIES-VERNON-
ST. CLAIR-HICKORY-CAMDEN-PULASKI-PHELPS-BARTON-CEDAR-POLK-DALLAS-
LACLEDE-TEXAS-DENT-JASPER-DADE-GREENE-WEBSTER-WRIGHT-NEWTON-
LAWRENCE-CHRISTIAN-DOUGLAS-HOWELL-SHANNON-MCDONALD-BARRY-STONE-
TANEY-OZARK-OREGON-
736 PM CDT THU OCT 22 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI
OZARKS AND EXTREME SOUTHEAST KANSAS.

.DAY ONE...TONIGHT.

  FLOODING WILL REMAIN POSSIBLE ACROSS CENTRAL AND SOUTH CENTRAL
  MISSOURI TONIGHT DUE TO THE WIDESPREAD MODERATE TO HEAVY
  RAINFALL OVER THE LAST 24 HOURS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

  ANOTHER STORM SYSTEM WILL AFFECT THE REGION DURING THE MIDDLE
  OF NEXT WEEK...WHICH WILL BRING CHANCES FOR THUNDERSTORMS TO
  THE AREA.

.SPOTTER INFORMATION STATEMENT...

  SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH
OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT
HTTP://WWW.CRH.NOAA.GOV/SGF(ALL LOWERCASE)

SCHAUMANN

In the hours before

Local storm report, Oct 22, 5:14 PM CDT, 3 hours 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
514 PM CDT THU OCT 22 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0405 PM     FLASH FLOOD      6 N CLIMAX SPRINGS      38.19N 93.05W
10/22/2009                   CAMDEN             MO   EMERGENCY MNGR

            CABLE RIDGE ROAD NEAR RAINY CREEK FLOODED AND IMPASSIBLE.

&&

JSS

Local storm report, Oct 22, 7:50 PM CDT, 1 hour 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
750 PM CDT THU OCT 22 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0749 PM     FLASH FLOOD      6 N CLIMAX SPRINGS      38.19N 93.05W
10/22/2009                   CAMDEN             MO   LAW ENFORCEMENT

            LOW WATER CROSSING AT CABLE RIDGE ROAD AND RAINY CREEK
            REMAINS FLOODED AND IMPASSIBLE.

&&

JSS

Local storm report, Oct 22, 8:30 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
830 PM CDT THU OCT 22 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0825 PM     FLASH FLOOD      WEST PLAINS             36.73N 91.85W
10/22/2009                   HOWELL             MO   LAW ENFORCEMENT

            WEST PLAINS POLICE DEPARTMENT AND HOWELL COUNTY SHERIFFS
            OFFICE INDICATE NEARLY ALL LOW WATER CROSSINGS ARE
            FLOODED IN AND AROUND WEST PLAINS. LOW WATER CROSSINGS
            ARE ALSO STARTING TO FLOOD THROUGHOUT THE COUNTY.

&&

JSS

Local storm report, Oct 22, 8:54 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
854 PM CDT THU OCT 22 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0850 PM     FLASH FLOOD      MOUNTAIN VIEW           37.00N 91.70W
10/22/2009                   HOWELL             MO   CO-OP OBSERVER

            THREE INCHES OF RAIN SINCE 7 AM. STILL RAINING HARD.
            SEVERAL STREETS IN MOUNTAIN VIEW CLOSED DUE TO FLASH
            FLOODING.

&&

GCLAYCOM

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 22, 10:58 PM CDT	Areal Flood Warning	SGF	Benton, Camden, Hickory, Miller, Morgan	11 hr
Oct 22, 11:53 PM CDT	Areal Flood Warning	SGF	Dent, Douglas, Howell, Oregon, Phelps, Shannon and 1 more	10 hr
Oct 23, 2:52 AM CDT	Frost Advisory	SGF	Barry, Barton, Benton, Camden, Cedar, Christian and 28 more	30 hr
Oct 23, 9:37 AM CDT	Areal Flood Warning	SGF	Douglas, Howell, Oregon, Shannon	24 hr

Nearby

Flash Flood Warnings in Missouri, 2009 Every flash flood warning in 2009

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.