Alert archive / Missouri / Flash Flood Warnings in 2009

Flash Flood Warning 110, NWS Springfield, MO

July 28, 2009Miller County, Morgan County, Missouri

NWS Springfield, MO issued this flash flood warning at Jul 28, 2009, 2:51 PM CDT for Miller County, Morgan County, Missouri. It was in force for 6 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: Jul 28, 2009, 2:51 PM CDT (19:51 UTC)
Expired: Jul 28, 2009, 9:00 PM CDT
In force: 6 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Flood severity: None

Counties Miller County, MO, Morgan County, MO

The radar

The Springfield radar (KSGF), 145 km from the middle of the area, began a volume at 19:53 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

Time	Report	Where	Remark
Jul 28, 4:37 PM CDT	FLASH FLOOD	2 S Barnett, MO	TWO REPORTS OF WATER RUNNING OVER THE ROAD SOUTH OF BARNETT ON AA HIGHWAY. WATER WAS REPORTED AS TOO DEEP TO DRIVE THROUGH.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 106 minutes after it went out.

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 12:00Z, 7.9 hours before the alert went out and 195 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: 831 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 511 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: -15 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 281951
FFWSGF
MOC131-141-290200-
/O.NEW.KSGF.FF.W.0110.090728T1951Z-090729T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
251 PM CDT TUE JUL 28 2009

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MORGAN COUNTY IN CENTRAL MISSOURI...
  NORTHERN MILLER COUNTY IN CENTRAL MISSOURI...

* UNTIL 900 PM CDT.

* AT 247 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RAINFALL RATES ESTIMATED BY DOPPLER RADAR WERE OVER   
  TWO INCHES PER HOUR. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT MAY EXPERIENCE FLASH FLOODING INCLUDE...
  AURORA SPRINGS...BAGNELL...BARNETT...ELDON...ETTERVILLE...
  FLORENCE...GRAVOIS MILLS...LAKELAND...LAKEVIEW...MARYS HOME...
  OLEAN...ROCKY MOUNT...SAINT ELIZABETH...STOVER...SYRACUSE...
  TUSCUMBIA AND VERSAILLES. CREEKS...STREAMS AND LOW WATER CROSSINGS 
  WILL BE ESPECIALLY SUSCEPTIBLE TO THE DANGERS OF FLASH FLOODING.


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 3869 9284 3860 9284 3844 9263 3843 9241
      3834 9240 3833 9219 3826 9220 3815 9234
      3820 9264 3822 9269 3822 9275 3827 9308
      3869 9307

$$

KARDELL

2 follow-up statements

000 
WGUS73 KSGF 290005
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
705 PM CDT TUE JUL 28 2009

MOC131-141-290200-
/O.CON.KSGF.FF.W.0110.000000T0000Z-090729T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MILLER MO-MORGAN MO-
705 PM CDT TUE JUL 28 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
EASTERN MORGAN AND NORTHWESTERN MILLER COUNTIES...

AT 701 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT
EXCESSIVE RAINFALL WAS PRODUCING FLASH FLOODING ACROSS THE WARNED 
AREA. HIGHWAY AA NEAR BARNETT HAS BEEN CLOSED DUE TO WATER RUNNING 
OVER THE ROADWAY.

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.

FLASH FLOODING IS OCCURRING WITHIN THE WARNED AREA...AND HAS BEEN 
REPORTED IN THE BARNETT AND VERSAILLES AREAS.

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 3834 9240 3827 9258 3831 9292 3845 9293
      3859 9283 3844 9263 3843 9241

$$

BARJENBRUCH

000 
WGUS73 KSGF 290155
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
855 PM CDT TUE JUL 28 2009

MOC131-141-290205-
/O.EXP.KSGF.FF.W.0110.000000T0000Z-090729T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MILLER MO-MORGAN MO-
855 PM CDT TUE JUL 28 2009

...THE FLASH FLOOD WARNING WILL EXPIRE AT 900 PM CDT FOR EASTERN
MORGAN AND NORTHWESTERN MILLER 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 3834 9240 3827 9258 3831 9292 3845 9293
      3859 9283 3844 9263 3843 9241

$$

BARJENBRUCH

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 Jul 28, 2:45 PM CDT, 6 minutes earlier.

Area forecast discussion, Jul 28, 2:45 PM CDT, 6 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
245 PM CDT TUE JUL 28 2009

.DISCUSSION...

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO INCREASE IN AREAL
COVERAGE OVER THE REST OF THE AFTERNOON AND EVENING.  AN ENVIRONMENT
CONDUCIVE FOR PULSE THUNDERSTORMS HAS MATERIALIZED OVER EXTREME
SOUTHEAST KANSAS AND THE MISSOURI OZARKS.  MIXED LAYER CAPES HAVE
INCREASED TO AROUND 2000 J/KG IN A BROAD AREA OF CENTRAL AND
SOUTHWEST MISSOURI.  MEANWHILE PRECIPITABLE WATER VALUES ARE RANGING
FROM 1.60 TO 1.80...WITHIN AN WEAKLY CAPPED TO NO CAPPED AIRMASS. A
FEW OF THE STRONGER STORMS WILL MOST LIKELY PRODUCE LARGE HAIL TO
THE SIZE OF HALF DOLLARS...ALONG WITH DAMAGING DOWNBURST WINDS IN
EXCESS OF 60 MPH.

FOR TONIGHT...A WEAK FRONTAL SYSTEM WILL SHIFT INTO NORTHERN
ARKANSAS AND CENTRAL OKLAHOMA.  THERE CONTINUES TO BE DECENT SIGNAL
WITH THE WRF MODEL THAT SUGGESTS CONVECTION DEVELOPING OVER NE
OKLAHOMA AND SE KANSAS...MAINLY AFTER MIDNIGHT.  THIS OCCURS IN
RESPONSE TO ENHANCED PRESSURE ADVECTION LIFT WITHIN AN AREA WHERE
THE LOW LEVEL JET INTERSECTS THE FRONTAL SYSTEM.  FOR THIS REASON I
HAVE ELECTED TO LEAN OUR FORECAST TOWARD THE WRF SOLUTION WITH POPS
THE HIGHEST OVER SW MO / SE KS AFTER MIDNIGHT.

OVERNIGHT CONVECTION THAT DEVELOPS IN OKLAHOMA WILL TRANSLATE ACROSS
SOUTHERN MISSOURI DURING THE MORNING HOURS OF WEDNESDAY.  ADDITIONAL
THUNDERSTORMS WILL LIKELY FORM WEDNESDAY AFTERNOON/NIGHT IN RESPONSE
TO A STRONGER COLD FRONT THAT WILL APPROACH THE REGION FROM THE
NORTHWEST.  A FEW OF THESE STORMS COULD BE STRONG TO SEVERE...PRIOR
TO EXITING THE REGION MID THURSDAY AFTERNOON.

CANADIAN HIGH PRESSURE BUILDS OVER THE NATIONS MID
SECTION...ALLOWING A COOLER AND DRIER AIRMASS TO SPREAD IN.   FAIR
WEATHER CONDUCIVE FOR OUTDOOR ACTIVITIES WILL RESULT BOTH FRIDAY AND
SATURDAY.  LOOK FOR LOW HUMIDITY...WITH AFTERNOON HIGHS WARMING INTO
THE MID 80S.  RETURN FLOW COMMENCES DURING THE DAY ON
SATURDAY...MEANWHILE A UNSEASONABLY STRONG UPPER LEVEL TROUGH AND
ASSOCIATED COLD FRONT WILL APPROACH BY SUNDAY.  THIS SYSTEM WILL
LIKELY CREATE ANOTHER EPISODE OF SHOWERS AND THUNDERSTORMS SUNDAY
AFTERNOON AND INTO NEXT MONDAY.

THERE CONTINUES TO BE A STRONG SIGNAL WITHIN THE MEDIUM RANGE MODELS
THAT CONFINES THE SUMMERTIME HIGH OVER THE DESERT SOUTHWEST.
MEANWHILE NORTHWEST FLOW PERSISTS OVER THE OZARKS...CAUSING
ADDITIONAL CANADIAN AIRMASSES TO SPREAD IN.  THIS PATTERN WOULD KEEP
THE REGION UNSEASONABLY COOL WITH MORE RAIN CHANCES IN THE FORECAST
THROUGH MUCH OF NEXT WEEK.

CRAMER

&&

.AVIATION...

THE CHALLENGE FOR THE FORECAST PERIOD WILL BE TIMING OF CONVECTION
AND EARLY MORNING RESTRICTIONS TO VISIBILITY. SCATTERED SHOWERS AND
THUNDERSTORMS WILL CONTINUE ACROSS SOUTH CENTRAL MISSOURI THIS
AFTERNOON...PRIMARILY IMPACTING THE BRANSON AERODROME. ANOTHER ROUND
OF THUNDERSTORMS IS EXPECTED TO DEVELOP ACROSS WEST CENTRAL MISSOURI
AND MOVE INTO THE OZARKS FROM THE NORTHWEST ALONG AND AHEAD OF AN
APPROACHING SHORTWAVE TROUGH...IMPACTING ALL THREE AERODROMES. THIS
ACTIVITY WILL MOVE OUT OF THE AREA BY LATE EVENING.  OVERNIGHT...THE
LOW LEVEL JET WILL IMPINGE ON THE LINGERING FRONTAL BOUNDARY ALONG
THE ARKANSAS BORDER...SPARKING REDEVELOPMENT OF CONVECTION THAT WILL
IMPACT THE JOPLIN AND BRANSON AERODROMES IN THE MORNING HOURS.  WITH
RAINFALL ACROSS THE AREA EXPECTED THIS AFTERNOON AND EVENING WITH
SURFACE COLD AIR ADVECTION BEHIND THE PASSING SHORTWAVE...SOME BRIEF
MVFR VISIBILITIES MAY IMPACT THE AERODROMES IN THE MORNING.

KARDELL

&&

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

Hazardous weather outlook, Jul 28, 11:51 AM CDT, 3 hours before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1151 AM CDT TUE JUL 28 2009

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-291330-
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-
1151 AM CDT TUE JUL 28 2009

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

.DAY ONE...TODAY AND TONIGHT.

  THUNDERSTORMS WILL DEVELOP TODAY OVER AREAS OF EXTREME SOUTHEAST
  KANSAS AND THE MISSOURI OZARKS.  DAMAGING DOWNBURST WINDS IN
  EXCESS OF 60 MPH WILL BE COMMON THROUGH THIS EVENING.  LARGE HAIL
  UP TO THE SIZE OF HALF DOLLARS ALONG WITH FREQUENT CLOUD TO GROUND
  LIGHTNING WILL ALSO OCCUR WITH SOME OF THE MORE INTENSE STORMS.
  DUE TO A MOIST AIRMASS CURRENTLY OVER THE REGION...LOCALIZED FLASH
  FLOODING CAN NOT BE RULED OUT...PARTICULARLY WITH SOME OF THE
  SLOWER MOVING STORMS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

  STRONG THUNDERSTORMS WILL BE POSSIBLE WEDNESDAY NIGHT AND
  THURSDAY AS A COLD FRONT MOVES THROUGH THE REGION. A FEW STRONG
  TO SEVERE THUNDERSTORMS WILL BE POSSIBLE WITH WIND GUSTS TO 60
  MPH THE PRIMARY SEVERE WEATHER RISK.

  THUNDERSTORMS WILL ONCE AGAIN BE POSSIBLE ON SATURDAY.

.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)

CRAMER

In the hours before

Local storm report, Jul 28, 9:03 AM CDT, 5 hours 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
903 AM CDT TUE JUL 28 2009

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

0630 PM     HAIL             NIANGUA                 37.39N 92.83W
07/27/2009  E0.88 INCH       WEBSTER            MO   PUBLIC

&&

HATCH

Special weather statement, Jul 28, 2:14 PM CDT, 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
214 PM CDT TUE JUL 28 2009

MOZ056-057-281945-
MILLER MO-MORGAN MO-
214 PM CDT TUE JUL 28 2009

...SIGNIFICANT WEATHER ALERT FOR EAST CENTRAL MORGAN AND NORTHWESTERN
MILLER COUNTIES UNTIL 245 PM CDT...

AT 212 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR BARNETT...OR 7 MILES WEST OF ELDON...MOVING
EAST AT 10 MPH. WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

PEOPLE IN EASTERN MORGAN AND NORTHWESTERN MILLER COUNTIES...INCLUDING
ELDON...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

KARDELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 3:33 PM CDT	Flash Flood Warning	SGF	Vernon	4 hr
Jul 28, 3:57 PM CDT	Flash Flood Warning	SGF	Benton	3 hr
Jul 28, 6:14 PM CDT	Severe Thunderstorm Warning	SGF	Christian	18 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.