Alert archive / Missouri / Flash Flood Warnings in 2007

Flash Flood Warning 7, NWS Springfield, MO

April 24, 2007Polk County, Missouri

NWS Springfield, MO issued this flash flood warning at Apr 24, 2007, 8:04 PM CDT for Polk County, Missouri. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 24, 2007, 8:04 PM CDT (01:04 UTC)
Expired: Apr 25, 2007, 2:00 AM CDT
In force: 6 hr
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text
Flood severity: None

County Polk County, MO

The radar

The Springfield radar (KSGF), 47 km from the middle of the area, began a volume at 01:04 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.1 hours before the alert went out and 91 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: 789 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 681 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 122 m²/s²
0-3 km storm-relative helicity: 123 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KSGF 250108
FFWSGF
MOC167-250700-
/X.NEW.KSGF.FF.W.0007.070425T0104Z-070425T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
804 PM CDT TUE APR 24 2007

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  POLK COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 200 AM CDT.

* AT 759 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.     
  DOPPLER RADAR ESTIMATES INDICATE THAT ONE TO SLIGHTLY OVER TWO     
  INCHES OF RAIN HAS FALLEN OVER PORTIONS OF WESTERN POLK COUNTY.    
  ADDITIONAL MODERATE TO LOCALLY HEAVY RAIN WILL OCCUR THROUGH MID   
  EVENING...AND INCREASE THE POTENTIAL FOR FLASH FLOODING. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT MAY EXPERIENCE FLASH FLOODING INCLUDE...
  BOLIVAR...FAIR PLAY...HUMANSVILLE AND MORRISVILLE.

DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROADWAY

LAT...LON 3781 9319 3744 9344 3743 9363 3782 9360

$$

IZZI

1 follow-up statement

000 
WGUS73 KSGF 250457
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1154 PM CDT TUE APR 24 2007

MOC077-250700-
/X.CON.KSGF.FF.W.0008.000000T0000Z-070425T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE MO-
1154 PM CDT TUE APR 24 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM CDT FOR
GREENE COUNTY...

AT 1150 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT
THE FLOODING THAT HAD OCCURRED EARLY WAS BEGINNING TO SUBSIDE. 
HOWEVER...RUNOFF FROM THE LOCALLY TWO INCHES OF RAIN THAT FELL 
TUESDAY EVENING CONTINUES...AND THE POTENTIAL FOR LOCALIZED FLOODING 
WILL CONTINUE DURING THE EARLY MORNING HOURS.

LAT...LON 3711 9362 3710 9329 3741 9313 3742 9363

$$

IZZI

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 7:06 PM CDT	Severe Thunderstorm Warning	SGF	Hickory, Polk	39 min
Apr 24, 7:43 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Polk	62 min
Apr 24, 8:03 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Hickory	57 min
Apr 24, 8:12 PM CDT	Flash Flood Warning	SGF	Greene	6 hr
Apr 24, 9:26 PM CDT	Severe Thunderstorm Warning	SGF	Ozark	68 min
Apr 24, 9:26 PM CDT	Severe Thunderstorm Warning	SGF	Webster, Wright	64 min
Apr 24, 9:44 PM CDT	Severe Thunderstorm Warning	SGF	Douglas	61 min
Apr 24, 9:54 PM CDT	Tornado Warning	SGF	Douglas	38 min
Apr 24, 10:12 PM CDT	Flash Flood Warning	SGF	Camden, Laclede, Pulaski	6 hr
Apr 24, 10:52 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	42 min
Apr 25, 4:02 PM CDT	Severe Thunderstorm Warning	SGF	Jasper	12 min
Apr 25, 4:05 PM CDT	Severe Thunderstorm Warning	SGF	Barton	55 min
Apr 25, 5:07 PM CDT	Tornado Warning	SGF	Cedar, St. Clair	20 min
Apr 25, 6:34 PM CDT	Flash Flood Warning	SGF	Benton, Hickory, St. Clair	6 hr

Nearby

Flash Flood Warnings in Missouri, 2007 Every flash flood warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.