Alert archive / Missouri / Flash Flood Warnings in 2012

Flash Flood Warning 14, NWS Springfield, MO

April 29, 2012Bourbon County, Crawford County, Kansas; Cedar County, St. Clair County, Vernon County, Missouri

NWS Springfield, MO issued this flash flood warning at Apr 29, 2012, 9:47 PM CDT for Bourbon County, Crawford County, Kansas; Cedar County, St. Clair County, Vernon County, Missouri. It was in force for 9 hr. 8 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: Apr 29, 2012, 9:47 PM CDT (02:47 UTC)
Expired: Apr 30, 2012, 7:00 AM CDT
In force: 9 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Flood severity: None

Counties Bourbon County, KS, Crawford County, KS, Cedar County, MO, St. Clair County, MO, Vernon County, MO

The radar

The Pleasant Hill radar (KEAX), 101 km from the middle of the area, began a volume at 02:48 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
Apr 29, 10:38 PM CDT	FLASH FLOOD	1 E Deerfield, MO	A SECTION OF HIGHWAY 54 IS FLOODING AND LIKELY IMPASSABLE TO MOTORISTS APPROXIMATELY ONE MILE EAST OF DEERFIELD.DRY WOOD CREEK IS FLOODING OVER THE HIGHWAY.
Apr 29, 11:27 PM CDT	FLASH FLOOD	1 E Deerfield, MO	BOTH EASTBOUND AND WESTBOUND HIGHWAY 54 CLOSED DUE TO FLOODING OF DRY WOOD CREEK.
Apr 29, 11:27 PM CDT	FLASH FLOOD	2 Nne Nevada, MO	HIGHWAY 71 NORTH HAS BEEN CLOSED DUE TO FLOODING.
Apr 29, 11:39 PM CDT	FLASH FLOOD	El Dorado Springs, MO	SEVERAL STREETS FLOODED AND IMPASSABLE WITHIN THE CITY LIMITS OF EL DORADO SPRINGS.
Apr 30, 4:27 AM CDT	FLASH FLOOD	1 E Deerfield, MO	HIGHWAY 54 CLOSED AT CR 850
Apr 30, 4:27 AM CDT	FLASH FLOOD	2 N Nevada, MO	HIGHWAY 71 CLOSED IN BOTH DIRECTIONS.
Apr 30, 4:27 AM CDT	FLASH FLOOD	3 Sw Nevada, MO	SECTION OF PANAMA ROAD WASHED OUT
Apr 30, 4:27 AM CDT	FLASH FLOOD	Nevada, MO	OCEAN HWY CLOSED

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, 2.8 hours before the alert went out and 119 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: 913 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 985 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.3

Open this sounding in Storm Lab

The text

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

655 
WGUS53 KSGF 300247
FFWSGF
KSC011-037-MOC039-185-217-300900-
/O.NEW.KSGF.FF.W.0014.120430T0247Z-120430T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOURBON COUNTY IN SOUTHEAST KANSAS...
  CRAWFORD COUNTY IN SOUTHEAST KANSAS...
  NORTHWESTERN CEDAR COUNTY IN SOUTHWEST MISSOURI...
  ST. CLAIR COUNTY IN WEST CENTRAL MISSOURI...
  VERNON COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 400 AM CDT MONDAY.

* AT 944 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RAINFALL AMOUNTS INTO THE OVERNIGHT HOURS COULD RANGE
  FROM TWO TO FIVE INCHES...PARTICULARLY OVER BOURBON AND VERNON
  COUNTIES. THE CITY OF FORT SCOTT WILL LIKELY EXPERIENCE SOME
  URBAN FLOODING...AS ADDITIONAL THUNDERSTORMS COULD TRAIN INTO
  THE CITY OVER THE NEXT 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.

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.

&&

LAT...LON 3805 9508 3804 9463 3806 9462 3806 9443
      3804 9407 3822 9405 3822 9356 3820 9349
      3792 9351 3791 9357 3783 9358 3783 9381
      3774 9410 3765 9462 3743 9483 3735 9507
      3758 9510

$$

CRAMER

3 follow-up statements

405 
WGUS73 KSGF 300316
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1016 PM CDT SUN APR 29 2012

KSC011-037-MOC039-185-217-300900-
/O.CON.KSGF.FF.W.0014.000000T0000Z-120430T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BOURBON KS-CRAWFORD KS-CEDAR MO-ST. CLAIR MO-VERNON MO-
1016 PM CDT SUN APR 29 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 AM CDT FOR
BOURBON...CRAWFORD...NORTHWESTERN CEDAR...ST. CLAIR AND VERNON
COUNTIES...

AT 1009 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED 
AREA. ADDITIONAL RAINFALL AMOUNTS WILL RANGE FROM TWO TO FIVE 
INCHES.  PARTICULARLY OVER BOURBON AND VERNON COUNTIES...SOME 
ISOLATED AREAS COULD RECEIVE UP TO SEVEN INCHES OVER THE NEXT FEW 
HOURS. 

THUNDERSTORMS WITH EXTREMELY HEAVY RAINFALL WILL TRAIN OVER THIS 
REGION.  

THE CITY OF NEVADA WILL NEED TO PREPARE FOR SIGNIFICANT 
FLASH FLOODING OVER THE NEXT TWO TO THREE 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.

THE BOURBON COUNTY EMERGENCY MANAGEMENT DIRECTOR RELAYED TO THE 
NATIONAL WEATHER SERVICE...THAT NUMEROUS ROADS WERE ALREADY 
FLOODED...AND IMPASSABLE TO MOTORISTS.

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.

&&

LAT...LON 3805 9508 3804 9463 3806 9462 3806 9443
      3804 9407 3822 9405 3822 9356 3820 9349
      3792 9351 3791 9357 3783 9358 3783 9381
      3774 9410 3765 9462 3743 9483 3735 9507
      3758 9510

$$

CRAMER

420 
WGUS53 KSGF 300735
FFWSGF
KSC011-037-MOC039-185-217-301200-
/O.EXT.KSGF.FF.W.0014.000000T0000Z-120430T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
235 AM CDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  BOURBON COUNTY IN SOUTHEAST KANSAS...
  CRAWFORD COUNTY IN SOUTHEAST KANSAS...
  NORTHWESTERN CEDAR COUNTY IN SOUTHWEST MISSOURI...
  ST. CLAIR COUNTY IN WEST CENTRAL MISSOURI...
  VERNON COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 700 AM CDT.

* AT 231 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED SLOW
  MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUED TO PRODUCE 
  FLOODING ACROSS THE WARNED AREA. RAIN GAUGES AND RADAR ESTIMATES 
  INDICATE THAT WIDESPREAD RAINFALL AMOUNTS OF 3 TO 6 INCHES HAVE 
  FALLEN ACROSS THE REGION OVERNIGHT...WITH LOCALIZE AMOUNTS GREATER 
  THAN 7 INCHES. THIS HAS RESULTED IN WIDESPREAD FLASH FLOODING 
  ACROSS THE AREA...INCLUDING THE FLOODING OF MAJOR HIGHWAYS. 
  ADDITIONAL RAINFALL AMOUNTS UP TO AN INCH ARE EXPECTED BETWEEN 
  3 AM AND 7 AM.

* 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.

THE MOST SEVERE FLOODING HAS BEEN REPORTED AROUND NEVADA AND 
DEERFIELD...WITH MULTIPLE SECTIONS OF HIGHWAY 71 REMAINING CLOSED. 
HIGHWAY 54 IS ALSO FLOODED AND CLOSED IN THE VICINITY OF DRYWOOD 
CREEK.

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 3805 9508 3804 9463 3806 9462 3806 9443
      3804 9407 3822 9405 3822 9356 3820 9349
      3792 9351 3791 9357 3783 9358 3783 9381
      3774 9410 3765 9462 3743 9483 3735 9507
      3758 9510

$$

SCHAUMANN

771 
WGUS73 KSGF 301156
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
656 AM CDT MON APR 30 2012

KSC011-037-MOC039-185-217-301205-
/O.EXP.KSGF.FF.W.0014.000000T0000Z-120430T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BOURBON KS-CRAWFORD KS-CEDAR MO-ST. CLAIR MO-VERNON MO-
656 AM CDT MON APR 30 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 AM CDT FOR BOURBON...
CRAWFORD...NORTHWESTERN CEDAR...ST. CLAIR AND VERNON COUNTIES...

THE FLASH FLOOD WARNING HAS BEEN REPLACED BY AN AREAL FLOOD WARNING 
WHICH IS IN EFFECT UNTIL 7 PM.

LAT...LON 3805 9508 3804 9463 3806 9462 3806 9443
      3804 9407 3822 9405 3822 9356 3820 9349
      3792 9351 3791 9357 3783 9358 3783 9381
      3774 9410 3765 9462 3743 9483 3735 9507
      3758 9510

$$

SCHAUMANN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 9:03 PM CDT	Severe Thunderstorm Warning	SGF	Bourbon	57 min
Apr 29, 11:17 PM CDT	Severe Thunderstorm Warning	SGF	Cherokee, Crawford	43 min
Apr 29, 11:57 PM CDT	Severe Thunderstorm Warning	SGF	Bourbon, Cherokee, Crawford	48 min
Apr 30, 12:05 AM CDT	Severe Thunderstorm Warning	SGF	Cherokee, Crawford	25 min
Apr 30, 12:46 AM CDT	Severe Thunderstorm Warning	SGF	Crawford	16 min
Apr 30, 12:47 AM CDT	Flash Flood Warning	SGF	Cherokee, Crawford	6 hr
Apr 30, 12:57 AM CDT	Special Weather Statement	SGF	Cherokee	48 min
Apr 30, 6:54 AM CDT	Areal Flood Warning	SGF	Bourbon, Cherokee, Crawford	12 hr
Apr 30, 9:36 AM CDT	River Flood Warning	SGF	Bourbon	66 hr
Apr 29, 8:08 PM CDT	River Flood Warning	SGF	Vernon	6 days
Apr 29, 9:50 PM CDT	River Flood Warning	SGF	Cedar	3 days
Apr 30, 1:11 AM CDT	Special Weather Statement	SGF	Cedar	49 min
Apr 30, 2:55 AM CDT	Areal Flood Advisory	SGF	Benton, Camden, Hickory, Miller, Morgan	16 hr
Apr 30, 6:47 AM CDT	River Flood Warning	SGF	Vernon	5 days
Apr 30, 9:36 AM CDT	River Flood Warning	SGF	Bates, Vernon	48 hr

Nearby

Flash Flood Warnings in Missouri, 2012 Flash Flood Warnings in Kansas, 2012 Every 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.