Alert archive / Missouri / Flash Flood Warnings in 2012

Flash Flood Warning 24, NWS Springfield, MO

May 29, 2012Maries County, Phelps County, Pulaski County, Missouri

NWS Springfield, MO issued this flash flood warning at May 29, 2012, 12:39 AM CDT for Maries County, Phelps County, Pulaski County, 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 29, 2012, 12:39 AM CDT (05:39 UTC)
Expired: May 29, 2012, 7:00 AM CDT
In force: 6 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Flood severity: None

Counties Maries County, MO, Phelps County, MO, Pulaski County, MO

The radar

The St Louis radar (KLSX), 129 km from the middle of the area, began a volume at 05:43 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
May 29, 12:39 AM CDT	HEAVY RAIN 2	Dixon, MO	MINOR FLOODING REPORTED.
May 29, 1:20 AM CDT	FLASH FLOOD	2 Ssw Dixon, MO	TWO FEET OF WATER OVER THE ROAD NEAR THE INTERSECTION OF HWY O AND CREEK RD.
May 29, 2:10 AM CDT	HEAVY RAIN 3.59	Dixon, MO	STORM TOTAL SO FAR.

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, 5.7 hours before the alert went out and 211 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: 1923 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1564 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

380 
WGUS53 KSGF 290539
FFWSGF
MOC125-161-169-291200-
/O.NEW.KSGF.FF.W.0024.120529T0539Z-120529T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1239 AM CDT TUE MAY 29 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MARIES COUNTY IN CENTRAL MISSOURI...
  NORTHERN PHELPS COUNTY IN EAST CENTRAL MISSOURI...
  NORTHERN PULASKI COUNTY IN CENTRAL MISSOURI...

* UNTIL 700 AM CDT.

* AT 1236 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA. RADAR ESTIMATES THAT 2 TO 5 INCHES OF RAIN HAS 
  FALLEN ACROSS THE AREA...WITH AN ADDITIONAL 1 TO 2 INCHES 
  EXPECTED OVERNIGHT.

* 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 N AT THE MARIES RIVER EAST OF BRINKTOWN...
ROUTE O AT JONES CREEK JUST SOUTH OF DIXON...
ROUTE Y NORTHWEST OF ROLLA...
ROUTE T NORTHWEST OF WAYNESVILLE...
ROUTE U AT TAVERN CREEK WEST OF CROCKER.

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 3797 9152 3774 9241 3795 9241 3802 9223
      3802 9219 3810 9219 3830 9180 3829 9163
      3816 9164 3815 9151

$$

SCHAUMANN

2 follow-up statements

186 
WGUS73 KSGF 290722
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
222 AM CDT TUE MAY 29 2012

MOC125-161-169-291200-
/O.CON.KSGF.FF.W.0024.000000T0000Z-120529T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARIES MO-PHELPS MO-PULASKI MO-
222 AM CDT TUE MAY 29 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM CDT FOR
MARIES...NORTHERN PHELPS AND NORTHERN PULASKI COUNTIES...

AT 221 AM CDT...TRAINED WEATHER SPOTTERS REPORTED THAT EXCESSIVE 
RAINFALL WAS PRODUCING FLASH FLOODING ACROSS THE WARNED AREA. RADAR 
ESTIMATES THAT BETWEEN 3 AND 6 INCHES OF RAIN HAS FALLEN ACROSS THE 
AREA SINCE LATE MONDAY EVENING. SOME LOCATIONS ACROSS EASTERN MARIES 
COUNTY HAVE LIKELY RECEIVED NEARLY 7 INCHES OF RAINFALL. FLASH 
FLOODING HAS BEEN REPORTED OVER HIGHWAY O JUST SOUTH OF DIXON.

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.

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

ROUTE N AT THE MARIES RIVER EAST OF BRINKTOWN...
ROUTE O AT JONES CREEK JUST SOUTH OF DIXON...
ROUTE Y NORTHWEST OF ROLLA...
ROUTE T NORTHWEST OF WAYNESVILLE...
ROUTE U AT TAVERN CREEK WEST OF CROCKER.

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 3797 9152 3774 9241 3795 9241 3802 9223
      3802 9219 3810 9219 3830 9180 3829 9163
      3816 9164 3815 9151

$$

SCHAUMANN

118 
WGUS73 KSGF 291156
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
656 AM CDT TUE MAY 29 2012

MOC125-161-169-291206-
/O.EXP.KSGF.FF.W.0024.000000T0000Z-120529T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARIES MO-PHELPS MO-PULASKI MO-
656 AM CDT TUE MAY 29 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 AM CDT FOR MARIES...
NORTHERN PHELPS AND NORTHERN PULASKI 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 3797 9152 3774 9241 3795 9241 3802 9223
      3802 9219 3810 9219 3830 9180 3829 9163
      3816 9164 3815 9151

$$

HATCH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 9:33 PM CDT	Severe Thunderstorm Warning	SGF	Morgan	42 min
May 28, 10:19 PM CDT	Special Weather Statement	SGF	Vernon	26 min
May 28, 10:54 PM CDT	Special Weather Statement	SGF	Maries	36 min
May 28, 10:58 PM CDT	Severe Thunderstorm Warning	SGF	Maries	32 min
May 28, 11:22 PM CDT	Special Weather Statement	SGF	Maries	23 min
May 28, 11:27 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	48 min
May 28, 11:32 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps, Pulaski	28 min
May 28, 11:42 PM CDT	Areal Flood Advisory	SGF	Maries	6 hr
May 29, 12:01 AM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	44 min
May 29, 12:07 AM CDT	Severe Thunderstorm Warning	SGF	Dade	38 min
May 29, 12:27 AM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	52 min
May 29, 12:32 AM CDT	Severe Thunderstorm Warning	SGF	Greene, Polk	43 min
May 29, 12:41 AM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	49 min
May 29, 12:47 AM CDT	Severe Thunderstorm Warning	SGF	Dade, Lawrence	43 min
May 29, 12:56 AM CDT	Severe Thunderstorm Warning	SGF	Greene	64 min
May 29, 1:34 AM CDT	Severe Thunderstorm Warning	SGF	McDonald	27 min
May 29, 1:35 AM CDT	Severe Thunderstorm Warning	SGF	Phelps, Pulaski	40 min
May 29, 6:59 AM CDT	Areal Flood Advisory	SGF	Pulaski	3 hr

Nearby

Flash Flood Warnings in Missouri, 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.