Alert archive / Missouri / Flash Flood Warnings in 2001

Flash Flood Warning 81, NWS Springfield, MO

September 8, 2001Laclede County, Webster County, Wright County, Missouri

NWS Springfield, MO issued this flash flood warning at Sep 8, 2001, 7:20 PM CDT for Laclede County, Webster County, Wright County, Missouri. It was in force for 3 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
Sep 8, 2001, 7:20 PM CDT (00:20 UTC)
Expired
Sep 8, 2001, 10:15 PM CDT
In force
3 hr
Issued by
NWS Springfield, MO
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Laclede County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 60 km from the middle of the area, began a volume at 00:19 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, 0.3 hours before the alert went out and 107 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 2001-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 471 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 2001-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.19395878Sfc1 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
471 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
550 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KSGF 090027
FFWSGF
MOC105-225-229-090315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
720 PM CDT SAT SEP 8 2001

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN LACLEDE COUNTY IN SOUTHWEST MISSOURI
  WEBSTER COUNTY IN SOUTHWEST MISSOURI
  WRIGHT COUNTY IN SOUTHWEST MISSOURI

* UNTIL 1015 PM CDT

* AT 714 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING OVER EASTERN 
WEBSTER...MUCH OF WRIGHT AND NORTHERN TEXAS COUNTIES.  A STORM 
SPOTTER IN NIANGUA REPORTED 2.8 INCHES OF RAIN FELL IN THE PAST 
HOUR...AND 1 TO 3 INCHES HAS FALLEN ELSEWHERE ACROSS THE WARNED AREA.

STORMS WITH LIGHT TO OCCASIONALLY HEAVY RAIN WILL CONTINUE THROUGH 
THE EVENING PRODUCING ANOTHER 1 TO 2 INCHES OF RAIN. THIS ADDITIONAL 
RAIN WILL LEAD TO FLOODING OF FLOOD PRONE AREAS AND THE NUMEROUS LOW 
WATER CROSSINGS.

MOTORISTS SHOULD BE ALERT FOR FLOODED ROADWAYS. REMEMBER THAT 
FLOODING IS ESPECIALLY DEADLY AFTER DARK WHEN FLOOD WARNINGS ARE 
HARD TO RECOGNIZE.

LAT...LON 3744 9303 3712 9303 3708 9228 3766 9232

RUNNELS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 7:38 PM CDTSevere Thunderstorm WarningSGFDouglas, Ozark67 min
Sep 8, 8:10 PM CDTSevere Thunderstorm WarningSGFJasper65 min
Sep 8, 8:14 PM CDTSevere Thunderstorm WarningSGFDent61 min
Sep 8, 8:24 PM CDTSevere Thunderstorm WarningSGFHowell, Texas66 min
Sep 8, 8:51 PM CDTFlash Flood WarningSGFDent, Howell, Phelps, Texas4 hr
Sep 8, 9:31 PM CDTFlash Flood WarningSGFOregon, Shannon4 hr
Sep 9, 12:30 AM CDTFlash Flood WarningSGFDent, Phelps, Texas3 hr

Nearby

Flash Flood Warnings in Missouri, 2001Every flash flood warning in 2001

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.