Alert archive / Missouri / Flash Flood Warnings in 2000

Flash Flood Warning 33, NWS Springfield, MO

July 12, 2000Polk County, Missouri

NWS Springfield, MO issued this flash flood warning at Jul 12, 2000, 7:21 AM CDT for Polk County, Missouri. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jul 12, 2000, 7:21 AM CDT (12:21 UTC)
Expired
Jul 12, 2000, 11:15 AM CDT
In force
4 hr
Issued by
NWS Springfield, MO
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Polk County, MO

The radar

The Springfield radar (KSGF), 42 km from the middle of the area, began a volume at 12:25 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 12:00Z, 0.4 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2000-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1148 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2000-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -43 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1148 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
839 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-43 m²/s²
0-3 km storm-relative helicity
-17 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KSGF 121223
FFWSGF
MOC167-121615-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
721 AM CDT WED JUL 12 2000

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

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

* UNTIL 1115 AM CDT

* AT 719 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED
  FLOODING ACROSS POLK COUNTY...AFTER THUNDERSTORMS PRODUCED THREE
  TO FIVE INCHES OF RAIN OVERNIGHT. NATIONAL WEATHER SERVICE RADAR
  ALSO INDICATED SHOWERS AND THUNDERSTORMS NEAR HERMITAGE AND OSCEOLA
  ...WHICH WILL MOVE INTO POLK COUNTY BY 8 AM. AN ADDITIONAL ONE TO 
  TWO INCHES OF RAIN WILL BE POSSIBLE IN POLK COUNTY THIS MORNING.
  THIS EXTENDS THE FLASH FLOOD WARNING FOR POLK COUNTY IN TIME.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
  WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
  FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH
  FLOODING INCLUDE...BOLIVAR...FAIR PLAY AND MORRISVILLE.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
SPRINGFIELD.

LAT...LON 3750 9363 3745 9324 3780 9317 3780 9356

SUTTON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 8:30 PM CDTFlash Flood WarningSGFMorgan3 hr
Jul 11, 11:22 PM CDTSevere Thunderstorm WarningSGFDent, Phelps38 min
Jul 12, 1:17 AM CDTFlash Flood WarningSGFDent3 hr
Jul 12, 3:20 AM CDTFlash Flood WarningSGFGreene3 hr
Jul 12, 4:27 AM CDTFlash Flood WarningSGFDallas, Hickory, Polk3 hr
Jul 12, 5:22 AM CDTFlash Flood WarningSGFChristian, Greene6 hr

Nearby

Flash Flood Warnings in Missouri, 2000Every flash flood warning in 2000

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.