Alert archive / Missouri / Flash Flood Warnings in 2003

Flash Flood Warning 60, NWS Springfield, MO

September 21, 2003Vernon County, Missouri

NWS Springfield, MO issued this flash flood warning at Sep 21, 2003, 2:20 PM CDT for Vernon 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, 2:20 PM CDT (19:20 UTC)
Expired
Sep 21, 2003, 6:30 PM CDT
In force
4 hr
Issued by
NWS Springfield, MO
Area
Counties, with a storm outline in the text

County Vernon County, MO

The radar

The Pleasant Hill radar (KEAX), 105 km from the middle of the area, began a volume at 19:22 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, 7.3 hours before the alert went out and 116 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 211929
FFWSGF
MOC217-212330-

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

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

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

* UNTIL 630 PM CDT.

* AT 219 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF THUNDERSTORMS WITH VERY HEAVY RAINFALL HAD AFFECTED MUCH 
  OF VERNON COUNTY OVER THE LAST SEVERAL HOURS.   DOPPLER RADAR HAS
  ESTIMATED NEARLY TWO AND HALF INCHES OF RAIN HAS AFFECTED THE DRY  
  WOOD CREEK BASIN OF SOUTHWESTERN VERNON COUNTY OVER THE LAST       
  HOUR.  ANOTHER LINE OF THUNDERSTORMS WILL APPROACH THE WARNED AREA 
  THIS AFTERNOON...WHICH WILL ONLY AGGRAVATE SATURATED SOILS IN      
  THE AREA.  ANOTHER TWO INCHES WILL BE POSSIBLE BY THIS EVENING.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL LIKELY CAUSE FLOODING OF 
SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG 
THE BANKS OF CREEKS AND STREAMS IN THE DRY WOOD CREEK AREA.

LAT...LON 3800 9411 3766 9411 3767 9460 3799 9459

$$

CRAMER
3 follow-up statements
000 
WGUS73 KSGF 212007
FFSSGF
MOC217-212330-

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

...FLASH FLOOD WARNING CONTINUES UNTIL 630 PM CDT FOR VERNON
COUNTY...

AT 301 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
DOPPLER RADAR ESTIMATED THAT NEARLY TWO AND HALF INCHES HAS FELL 
ALONG AND NEAR THE DRY CREEK BASIN.

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 NEAR DRY CREEK.

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 3802 9411 3768 9411 3768 9458 3802 9457

$$

CRAMER
000 
WGUS73 KSGF 212147
FFSSGF
MOC217-212330-

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

...FLASH FLOOD WARNING CONTINUES UNTIL 630 PM CDT FOR VERNON
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 FOUR INCHES OF RAIN FELL IN 
SOUTHEASTERN SECTIONS OF VERNON COUNTY...WHILE MOST OTHER LOCATIONS 
RANGED FROM ONE INCH TO THREE INCHES THIS AFTERNOON.

LIGHT TO MODERATE RAIN WILL CONTINUE TO AFFECT THE WARNED AREA OVER 
THE NEXT COUPLE OF HOURS. RUNOFF FROM THIS 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 3803 9410 3770 9411 3769 9457 3803 9458

$$

CRAMER
000 
WGUS73 KSGF 212339
FFSSGF
MOC217-220230-

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

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

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. MOST 
OF THE 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 3799 9414 3768 9416 3769 9459 3800 9458

$$

CRAMER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 3:27 PM CDTFlash Flood WarningSGFBenton4 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.