Alert archive / Missouri / Flash Flood Warnings in 2002

Flash Flood Warning 74, NWS Springfield, MO

August 23, 2002Shannon County, Missouri

NWS Springfield, MO issued this flash flood warning at Aug 23, 2002, 10:43 PM CDT for Shannon 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
Aug 23, 2002, 10:43 PM CDT (03:43 UTC)
Expired
Aug 24, 2002, 5:00 AM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Counties, with a storm outline in the text

County Shannon County, MO

The radar

The Springfield radar (KSGF), 184 km from the middle of the area, began a volume at 03:43 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.7 hours before the alert went out and 220 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 00:00Z on 2002-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1863 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 00:00Z on 2002-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
1863 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1567 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KSGF 240343
FFWSGF
MOC203-241000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1030 PM CDT FRI AUG 23 2002

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN AND CENTRAL SHANNON COUNTY IN SOUTH CENTRAL MISSOURI

* UNTIL 500 AM CDT

* AT 1028 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.     
  DOPPLER RADAR ESTIMATED 2.5 INCHES IN RURAL AREAS OF CENTRAL       
  SHANNON COUNTY WITHIN THE LAST HOUR.

* 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 FLOODING    
  INCLUDE...WINONA...EMINENCE AND BIRCH TREE.

ADDITIONAL RAINFALL AMOUNTS OF 2 INCHES ARE POSSIBLE IN THE WARNED AREA.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3716 9124 3710 9103 3708 9124 3689 9124
          3690 9167 3717 9166

CRAMER
6 follow-up statements
000 
RWUS32 KSGF 240418
FFSSGF
MOC203-240515-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1116 PM CDT FRI AUG 23 2002

...FLASH FLOOD WARNING CONTINUES UNTIL 1215 AM CDT FOR SOUTHERN
SHANNON COUNTY...

AT 1108 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE ADVISORY AREA.
DOPPLER RADAR ESTIMATED UP TO 4 INCHES OF RAIN HAD FALLEN OVER
PARTS OF SHANNON COUNTY SOUTH OF A SUMMERSVILLE TO EMINENCE LINE.

SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLOODING
TO OCCUR...ESPECIALLY ALONG SMALL STREAMS AND NEAR LOW WATER
CROSSINGS. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WINONA...BIRCH TREE...AND ALLEY SPRING.

LAW ENFORCEMENT OFFICIALS REPORTED WATER COVERING SOME ROADWAYS 
IN WINONA.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3719 9124 3690 9125 3689 9165 3721 9163

BROWNING
000 
RWUS32 KSGF 240418 RRA
FFSSGF
MOC203-240515-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1116 PM CDT FRI AUG 23 2002

...FLASH FLOOD WARNING CONTINUES UNTIL 500 AM CDT FOR SOUTHERN
SHANNON COUNTY...

AT 1108 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE ADVISORY AREA.
DOPPLER RADAR ESTIMATED UP TO 4 INCHES OF RAIN HAD FALLEN OVER
PARTS OF SHANNON COUNTY SOUTH OF A SUMMERSVILLE TO EMINENCE LINE.

SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLOODING
TO OCCUR...ESPECIALLY ALONG SMALL STREAMS AND NEAR LOW WATER
CROSSINGS. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WINONA...BIRCH TREE...AND ALLEY SPRING.

LAW ENFORCEMENT OFFICIALS REPORTED WATER COVERING SOME ROADWAYS 
IN WINONA.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3719 9124 3690 9125 3689 9165 3721 9163

BROWNING
000 
RWUS32 KSGF 240448
FFSSGF
MOC203-240645-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1144 PM CDT FRI AUG 23 2002

...FLASH FLOOD WARNING CONTINUES UNTIL 500 AM CDT FOR...

AT 1138 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL WERE CONTINUING TO FORM 
ACROSS THE WARNED AREA. DOPPLER RADAR ESTIMATED THAT UP TO 4 
INCHES OF RAIN HAD ALREADY FALLEN SOUTH OF A SUMMERSVILLE TO 
EMINENCE LINE. 

SLOW MOVING THUNDERSTORMS WILL PRODUCE VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLOODING
TO OCCUR...ESPECIALLY ALONG SMALL STREAMS AND NEAR LOW WATER
CROSSINGS. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...WINONA...BIRCH TREE...AND ALLEY SPRING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO 
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3721 9163 3689 9164 3690 9126 3721 9125

BROWNING
000 
RWUS32 KSGF 240513 CCA
FFSSGF
MOC203-240645-

FLASH FLOOD STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1144 PM CDT FRI AUG 23 2002

...FLASH FLOOD WARNING CONTINUES UNTIL 500 AM CDT FOR SHANNON 
COUNTY...

AT 1138 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL WERE CONTINUING TO FORM 
ACROSS THE WARNED AREA. DOPPLER RADAR ESTIMATED THAT UP TO 4 
INCHES OF RAIN HAD ALREADY FALLEN SOUTH OF A SUMMERSVILLE TO 
EMINENCE LINE. 

SLOW MOVING THUNDERSTORMS WILL PRODUCE VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLOODING
TO OCCUR...ESPECIALLY ALONG SMALL STREAMS AND NEAR LOW WATER
CROSSINGS. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...WINONA...BIRCH TREE...AND ALLEY SPRING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO 
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3721 9163 3689 9164 3690 9126 3721 9125

BROWNING
008 
RWUS32 KSGF 240601
FFSSGF
MOC203-241000-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1259 AM CDT SAT AUG 24 2002

...FLASH FLOOD WARNING CONTINUES UNTIL 500 AM CDT FOR SHANNON
COUNTY...

AT 1255 AM CDT...NATIONAL WEATHER SERVICE RADAR IN SPRINGFIELD 
INDICATED THAT THE RAINFALL HAD ENDED ACROSS SHANNON COUNTY. 
SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED TO THE NORTH AND 
SOUTH...AND MAY STILL AFFECT SHANNON COUNTY OVERNIGHT. RADAR 
ESTIMATED THAT TWO TO FOUR INCHES OF RAIN HAD FALLEN ACROSS SOUTHERN 
SHANNON COUNTY FRIDAY EVENING...AFFECTING THE AREA BETWEEN EMINENCE 
AND WINONA.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...
OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

LAT...LON 3692 9166 3689 9124 3735 9122 3736 9165

SUTTON
665 
RWUS32 KSGF 241010
FFSSGF
MOC203-241030-

NATIONAL WEATHER SERVICE SPRINGFIELD MO
500 AM CDT SAT AUG 24 2002

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR SHANNON COUNTY 
HAS BEEN ALLOWED TO EXPIRE...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE AREA. STREAMS AND
CREEKS IN THE 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.

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY.

LAT...LON 3731 9116 3687 9123 3689 9164 3741 9165

JLT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 11:11 PM CDTSevere Thunderstorm WarningSGFChristian34 min
Aug 23, 11:51 PM CDTSevere Thunderstorm WarningSGFStone54 min
Aug 24, 12:26 PM CDTSevere Thunderstorm WarningSGFDade34 min
Aug 24, 12:39 PM CDTSevere Thunderstorm WarningSGFGreene, Polk66 min
Aug 24, 1:58 PM CDTSevere Thunderstorm WarningSGFWebster47 min
Aug 24, 2:14 PM CDTSevere Thunderstorm WarningSGFWright46 min
Aug 24, 2:52 PM CDTSevere Thunderstorm WarningSGFDouglas, Howell, Texas38 min
Aug 24, 3:28 PM CDTSevere Thunderstorm WarningSGFHowell47 min
Aug 24, 3:52 PM CDTSevere Thunderstorm WarningSGFOregon38 min

Nearby

Flash Flood Warnings in Missouri, 2002Every flash flood warning in 2002

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.