Alert archive / Missouri / Flash Flood Warnings in 2012

Flash Flood Warning 25, NWS Springfield, MO

June 16, 2012Benton County, Missouri

NWS Springfield, MO issued this flash flood warning at Jun 16, 2012, 10:55 PM CDT for Benton County, Missouri. It was in force for 5 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: Jun 16, 2012, 10:55 PM CDT (03:55 UTC)
Expired: Jun 17, 2012, 3:59 AM CDT
In force: 5 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Flood severity: None

County Benton County, MO

The radar

The Pleasant Hill radar (KEAX), 100 km from the middle of the area, began a volume at 03:55 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
Jun 17, 12:36 AM CDT	FLASH FLOOD	Racket, MO	HIGH WATER OVER HIGHWAY 7 NEAR RACKET

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, 3.9 hours before the alert went out and 153 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: 809 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1865 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

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

734 
WGUS53 KSGF 170355
FFWSGF
MOC015-171000-
/O.NEW.KSGF.FF.W.0025.120617T0355Z-120617T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1055 PM CDT SAT JUN 16 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN BENTON COUNTY IN CENTRAL MISSOURI...

* UNTIL 500 AM CDT SUNDAY.

* AT 1050 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. DOPPLER RADAR WAS ESTIMATING BETWEEN TWO AND THREE
  INCHES OF RAINFALL HAS ALREADY OCCURRED WITH THESE STORMS.         
  ADDITIONAL HEAVY RAINFALL IS EXPECTED THROUGH MIDNIGHT.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT MAY EXPERIENCE FLASH FLOODING INCLUDE...
  RACKET...WARSAW AND WHITAKERVILLE. 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.

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 3828 9322 3808 9329 3819 9350 3821 9352
      3837 9352

$$

LINDENBERG

2 follow-up statements

507 
WGUS73 KSGF 170538
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1238 AM CDT SUN JUN 17 2012

MOC015-171000-
/O.CON.KSGF.FF.W.0025.000000T0000Z-120617T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BENTON MO-
1238 AM CDT SUN JUN 17 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 AM CDT FOR
SOUTHWESTERN BENTON COUNTY...

AT 1233 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT
EXCESSIVE RAINFALL WAS PRODUCING FLASH FLOODING ACROSS THE WARNED 
AREA. HIGH WATER WAS REPORTED FLOWING OVER A PORTION OF HIGHWAY 7 
NEAR RACKET. DOPPLER RADAR ESTIMATED UP TO TWO INCHES OF RAINFALL 
OCCURRED IN THE FLASH FLOOD WARNING AREA.

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.


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.

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 3828 9322 3808 9329 3819 9350 3821 9352
      3837 9352

$$

GRIFFIN

008 
WGUS73 KSGF 170859
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
359 AM CDT SUN JUN 17 2012

MOC015-170909-
/O.CAN.KSGF.FF.W.0025.000000T0000Z-120617T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BENTON MO-
359 AM CDT SUN JUN 17 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHWESTERN BENTON
COUNTY...

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 3828 9322 3808 9329 3819 9350 3821 9352
      3837 9352

$$

GRIFFIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 8:50 PM CDT	Severe Thunderstorm Warning	SGF	Benton	24 min
Jun 16, 10:25 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller, Phelps, Pulaski	50 min
Jun 16, 10:27 PM CDT	Severe Thunderstorm Warning	SGF	Benton, Camden, Hickory	48 min
Jun 16, 11:10 PM CDT	Special Weather Statement	SGF	Dent	50 min
Jun 17, 12:10 AM CDT	Special Weather Statement	SGF	Cedar	50 min
Jun 17, 12:12 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, St. Clair	48 min
Jun 17, 12:30 AM CDT	Special Weather Statement	SGF	Texas	45 min
Jun 17, 12:48 AM CDT	Flash Flood Warning	SGF	Cedar, Hickory, St. Clair, Vernon	6 hr
Jun 17, 1:08 AM CDT	Special Weather Statement	SGF	St. Clair	37 min
Jun 17, 1:48 AM CDT	Special Weather Statement	SGF	St. Clair	42 min
Jun 17, 7:10 AM CDT	Areal Flood Warning	SGF	St. Clair, Vernon	5 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.