Alert archive / Missouri / Flash Flood Warnings in 2003

Flash Flood Warning 61, NWS Springfield, MO

September 21, 2003Benton County, Missouri

NWS Springfield, MO issued this flash flood warning at Sep 21, 2003, 3:27 PM CDT for Benton 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 as issued.

The facts

Issued
Sep 21, 2003, 3:27 PM CDT (20:27 UTC)
Expired
Sep 21, 2003, 7:30 PM CDT
In force
4 hr
Issued by
NWS Springfield, MO
Area
Counties, with a storm outline in the text

County Benton County, MO

The radar

The Pleasant Hill radar (KEAX), 102 km from the middle of the area, began a volume at 20:27 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, 8.5 hours before the alert went out and 164 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 2003-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2003-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KSGF 212030
FFWSGF
MOC015-220030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
327 PM CDT SUN SEP 21 2003

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

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

* UNTIL 730 PM CDT.

* AT 321 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.     
  DOPPLER RADAR ESTIMATED THAT NEARLY TWO INCHES HAS FELL OVER
  RURAL NORTHWESTERN AND CENTRAL BENTON COUNTY.

* 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 MAY EXPERIENCE FLOODING     
  INCLUDE...WARSAW...LINCOLN AND COLE CAMP.

A SLOW MOVING COMPLEX OF SHOWERS AND THUNDERSTORMS WILL CONTINUE TO 
AFFECT THE AREA INTO THE EVENING HOURS.  ADDITIONAL RAINFALL AMOUNTS 
OF TWO INCHES ARE POSSIBLE IN THE WARNED AREA.  

LAT...LON 3853 9310 3815 9311 3808 9346 3818 9349
          3844 9336

$$

CRAMER
2 follow-up statements
000 
WGUS73 KSGF 212151
FFSSGF
MOC015-220000-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
449 PM CDT SUN SEP 21 2003

...FLASH FLOOD WARNING CONTINUES UNTIL 700 PM CDT FOR BENTON
COUNTY...

AT 443 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
DOPPLER RADAR ESTIMATED THAT NEARLY THREE INCHES OF RAIN FELL OVER  
PORTIONS OF CENTRAL AND NORTHWESTERN BENTON COUNTY THIS AFTERNOON.

LIGHT TO MODERATE RAINFALL WILL CONTINUE TO AFFECT THE WARNED AREA 
INTO THE EVENING HOURS. RUNOFF FROM THIS EXCESSIVE RAINFALL MAY 
CAUSE FLOODING TO OCCUR...ESPECIALLY ALONG SMALL STREAMS AND NEAR 
LOW WATER CROSSINGS. 

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.

LAT...LON 3850 9309 3810 9310 3812 9350 3851 9350

$$

CRAMER
000 
WGUS73 KSGF 220027
FFSSGF
MOC015-220330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
727 PM CDT SUN SEP 21 2003

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR BENTON COUNTY HAS 
BEEN ALLOWED TO EXPIRE...

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.

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.

LAT...LON 3848 9314 3813 9312 3811 9348 3849 9347

$$

CRAMER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 2:20 PM CDTFlash Flood WarningSGFVernon4 hr
Sep 21, 4:03 PM CDTFlash Flood WarningSGFCedar3 hr
Sep 21, 4:22 PM CDTFlash Flood WarningSGFMorgan3 hr
Sep 21, 6:30 PM CDTSevere Thunderstorm WarningSGFTaney45 min

Nearby

Flash Flood Warnings in Missouri, 2003Every flash flood warning in 2003

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.