Alert archive / Missouri / Flash Flood Warnings in 2011

Flash Flood Warning 6, NWS Springfield, MO

April 23, 2011Dade County, Dallas County, Polk County, Missouri

NWS Springfield, MO issued this flash flood warning at Apr 23, 2011, 3:29 AM CDT for Dade County, Dallas County, Polk County, Missouri. It was in force for 6 hr. 2 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 23, 2011, 3:29 AM CDT (08:29 UTC)
Expired: Apr 23, 2011, 9:00 AM CDT
In force: 6 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Flood severity: None

Counties Dade County, MO, Dallas County, MO, Polk County, MO

The radar

The Springfield radar (KSGF), 37 km from the middle of the area, began a volume at 08:29 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 23, 4:45 AM CDT	FLASH FLOOD	Bolivar, MO	SEVERAL LOW WATER CROSSINGS ON COUNTY ROADS FLOODED BETWEEN BOLIVAR AND PLEASANT HOPE.
Apr 23, 5:45 AM CDT	FLASH FLOOD	5 Ssw Half Way, MO	LOW WATER CROSSING ON YY FLOODED AND IMPASSABLE.

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, 8.5 hours before the alert went out and 85 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: 2835 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 640 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 231 m²/s²
0-3 km storm-relative helicity: 254 m²/s²
Significant tornado parameter: 4.7
Supercell composite: 18.1

Open this sounding in Storm Lab

The text

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

841 
WGUS53 KSGF 230829
FFWSGF
MOC057-059-167-231400-
/O.NEW.KSGF.FF.W.0006.110423T0829Z-110423T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
329 AM CDT SAT APR 23 2011

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DALLAS COUNTY IN SOUTHWEST MISSOURI...
  NORTHEASTERN DADE COUNTY IN SOUTHWEST MISSOURI...
  POLK COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 900 AM CDT.

* AT 324 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  TRAINING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
  WARNED AREA. RADAR ESTIMATED RAINFALL AMOUNTS OF ONE TO TWO INCHES 
  SINCE 2 AM...AND ADDITIONAL AMOUNTS IN EXCESS OF ONE INCH ARE 
  POSSIBLE. 

* 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 H JUST NORTH OF PLEASANT HOPE...
ROUTE C NORTH OF BUFFALO AT LINDLEY CREEK...
HIGHWAY 32 EAST OF BUFFALO AT GREASY CREEK...
ROUTE AA AT THE POMME DE TERRE EAST OF BOLIVAR...
HIGHWAY 215 JUST EAST OF PLEASANT HOPE.

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 3744 9376 3758 9375 3758 9362 3771 9361
      3779 9286 3763 9284 3749 9285 3749 9307
      3743 9308

$$

FOSTER

2 follow-up statements

600 
WGUS73 KSGF 231032
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
532 AM CDT SAT APR 23 2011

MOC057-059-167-231400-
/O.CON.KSGF.FF.W.0006.000000T0000Z-110423T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
POLK MO-DADE MO-DALLAS MO-
532 AM CDT SAT APR 23 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 AM CDT FOR
DALLAS...NORTHEASTERN DADE AND POLK COUNTIES...

AT 525 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SHOWERS AND THUNDERSTORMS PRODUCING MODERATE TO HEAVY RAINFALL 
ACROSS THE WARNED AREA. RADAR ESTIMATED RAINFALL AMOUNTS SINCE 3 AM 
HAVE RANGED FROM ONE TO TWO INCHES FROM NORTHEAST DADE COUNTY INTO 
CENTRAL POLK AND DALLAS COUNTIES. ADDITIONAL RAINFALL AMOUNTS OF ONE 
HALF TO ONE INCH WILL BE POSSIBLE THROUGH 9 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.

THIS WARNING INCLUDES BUT IS NOT LIMITED TO THE FOLLOWING LOW WATER
CROSSINGS...

ROUTE H JUST NORTH OF PLEASANT HOPE...
ROUTE C NORTH OF BUFFALO AT LINDLEY CREEK...
HIGHWAY 32 EAST OF BUFFALO AT GREASY CREEK...
ROUTE AA AT THE POMME DE TERRE EAST OF BOLIVAR...
HIGHWAY 215 JUST EAST OF PLEASANT HOPE.

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 3744 9376 3758 9375 3758 9362 3771 9361
      3779 9286 3763 9284 3749 9285 3749 9307
      3743 9308

$$

FOSTER

381 
WGUS73 KSGF 231403
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
903 AM CDT SAT APR 23 2011

MOC057-059-167-231413-
/O.EXP.KSGF.FF.W.0006.000000T0000Z-110423T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
POLK MO-DADE MO-DALLAS MO-
903 AM CDT SAT APR 23 2011

...THE FLASH FLOOD WARNING HAS EXPIRED FOR DALLAS...NORTHEASTERN DADE
AND POLK COUNTIES...

THIS FLASH FLOOD WARNING HAS BEEN REPLACED WITH AN AREAL FLOOD 
WARNING. CONTINUED RUNOFF FROM EXCESSIVE RAINFALL SINCE LAST EVENING 
MAY CONTINUE TO CAUSE FLOODING.

LAT...LON 3744 9376 3758 9375 3758 9362 3771 9361
      3779 9286 3763 9284 3749 9285 3749 9307
      3743 9308

$$

FOSTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 7:00 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller	45 min
Apr 22, 7:03 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon, Shannon, Texas	57 min
Apr 22, 7:09 PM CDT	Tornado Warning	SGF	Christian	51 min
Apr 22, 7:18 PM CDT	Tornado Warning	SGF	Oregon, Shannon	42 min
Apr 22, 7:36 PM CDT	Tornado Warning	SGF	Christian, Douglas, Webster	16 min
Apr 22, 7:36 PM CDT	Tornado Warning	SGF	Phelps, Texas	28 min
Apr 22, 7:39 PM CDT	Flash Flood Warning	SGF	Howell, Oregon, Ozark, Shannon	8 hr
Apr 22, 7:46 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Laclede	25 min
Apr 22, 8:02 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	58 min
Apr 22, 8:22 PM CDT	Special Weather Statement	SGF	Greene	23 min
Apr 22, 8:34 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Webster	26 min
Apr 22, 9:01 PM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	23 min
Apr 22, 9:52 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Wright	38 min
Apr 22, 10:20 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Shannon, Texas, Wright	55 min
Apr 22, 10:22 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Webster	38 min
Apr 22, 10:31 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone, Taney	29 min
Apr 22, 10:37 PM CDT	Special Weather Statement	SGF	Lawrence	23 min
Apr 22, 10:44 PM CDT	Severe Thunderstorm Warning	SGF	Webster, Wright	46 min
Apr 22, 10:49 PM CDT	Flash Flood Warning	SGF	Dent, Laclede, Shannon, Texas, Wright	6 hr
Apr 22, 11:10 PM CDT	Special Weather Statement	SGF	Shannon, Texas	50 min
Apr 22, 11:18 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Texas	31 min
Apr 22, 11:48 PM CDT	Special Weather Statement	SGF	Texas	27 min
Apr 23, 12:29 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	42 min
Apr 23, 12:40 AM CDT	Severe Thunderstorm Warning	SGF	Shannon	35 min
Apr 23, 1:19 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone, Taney	56 min
Apr 23, 3:34 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Greene, Laclede, Webster	45 min
Apr 23, 3:48 AM CDT	Severe Thunderstorm Warning	SGF	Laclede, Pulaski	49 min
Apr 23, 3:54 AM CDT	Flash Flood Warning	SGF	Laclede, Pulaski	5 hr
Apr 23, 3:58 AM CDT	Areal Flood Warning	SGF	Dent, Douglas, Howell, Oregon, Ozark, Shannon and 2 more	10 hr
Apr 23, 4:01 AM CDT	Severe Thunderstorm Warning	SGF	Laclede, Wright	35 min
Apr 23, 4:11 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps, Pulaski, Texas	27 min
Apr 23, 5:56 AM CDT	Severe Thunderstorm Warning	SGF	McDonald	64 min
Apr 23, 6:30 AM CDT	Flash Flood Warning	SGF	Barry, McDonald, Newton	6 hr
Apr 23, 9:01 AM CDT	Areal Flood Warning	SGF	Dallas, Laclede, Phelps, Polk, Pulaski	5 hr
Apr 23, 9:29 AM CDT	Special Weather Statement	SGF	Ozark	31 min
Apr 23, 11:04 AM CDT	Special Weather Statement	SGF	Oregon	26 min
Apr 23, 11:30 AM CDT	Special Weather Statement	SGF	Oregon	45 min
Apr 23, 11:53 AM CDT	Areal Flood Warning	SGF	Barry, McDonald, Newton	6 hr
Apr 23, 1:57 PM CDT	Areal Flood Warning	SGF	Dallas, Dent, Douglas, Howell, Laclede, Oregon and 7 more	4 hr
Apr 23, 2:44 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Webster, Wright	46 min
Apr 23, 3:02 PM CDT	Special Weather Statement	SGF	McDonald	28 min
Apr 23, 3:22 PM CDT	Severe Thunderstorm Warning	SGF	Texas, Wright	38 min
Apr 23, 3:24 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	51 min
Apr 23, 3:29 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene, Lawrence	46 min
Apr 23, 3:58 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	47 min
Apr 23, 4:04 PM CDT	Special Weather Statement	SGF	Barry, Stone	26 min
Apr 23, 4:06 PM CDT	Special Weather Statement	SGF	Polk	24 min
Apr 23, 4:09 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	66 min
Apr 23, 4:12 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Webster	33 min
Apr 23, 4:15 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Lawrence, Stone	45 min
Apr 23, 4:16 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Stone, Taney	21 min
Apr 23, 4:16 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark	44 min
Apr 23, 4:19 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Texas, Wright	30 min
Apr 23, 4:20 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Laclede, Polk	21 min
Apr 23, 4:34 PM CDT	Flash Flood Warning	SGF	Dent, Douglas, Howell, Laclede, Phelps, Pulaski and 4 more	6 hr
Apr 23, 4:41 PM CDT	Areal Flood Advisory	SGF	Greene	3 hr
Apr 23, 4:43 PM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	47 min
Apr 23, 5:02 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Texas	28 min
Apr 23, 5:08 PM CDT	Special Weather Statement	SGF	Wright	37 min
Apr 23, 5:10 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	31 min
Apr 23, 5:27 PM CDT	Special Weather Statement	SGF	Taney	33 min
Apr 23, 5:30 PM CDT	Flash Flood Warning	SGF	Barry, Christian, Douglas, Ozark, Stone, Taney	7 hr
Apr 23, 5:31 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Shannon, Texas	59 min
Apr 23, 5:35 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	55 min
Apr 23, 5:54 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Ozark, Taney	36 min
Apr 23, 5:55 PM CDT	Areal Flood Warning	SGF	Dallas, Dent, Douglas, Howell, Laclede, Oregon and 8 more	6 hr
Apr 23, 5:58 PM CDT	Areal Flood Warning	SGF	Barry, McDonald, Newton	6 hr
Apr 23, 6:08 PM CDT	Areal Flood Advisory	SGF	Webster	6 hr
Apr 23, 6:27 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark	33 min
Apr 23, 6:56 PM CDT	Flash Flood Warning	SGF	Douglas, Howell, Oregon, Ozark, Shannon	6 hr

Nearby

Flash Flood Warnings in Missouri, 2011 Every 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.