Alert archive / Missouri / Flash Flood Warnings in 2001

Flash Flood Warning 69, NWS Springfield, MO

August 9, 2001Greene County, Missouri

NWS Springfield, MO issued this flash flood warning at Aug 9, 2001, 4:59 PM CDT for Greene 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: Aug 9, 2001, 4:59 PM CDT (21:59 UTC)
Expired: Aug 9, 2001, 9:00 PM CDT
In force: 4 hr
Issued by: NWS Springfield, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Greene County, MO

The radar

The Springfield radar (KSGF), 6 km from the middle of the area, began a volume at 22:02 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, 10.0 hours before the alert went out and 55 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1056 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 1504 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 81 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 092200
FFWSGF
MOC077-100200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
459 PM CDT THU AUG 9 2001

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL GREENE COUNTY IN SOUTHWEST MISSOURI

* UNTIL 900 PM CDT

* AT 457 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL NEAR SPRINGFIELD...MOVING   
  EAST AT 25 MPH. DOPPLER RADAR ESTIMATED ONE TO TWO INCHES OF RAIN
  HAS ALREADY AFFECTED AN AREA NEAR BROOKLINE.  THIS RAIN WILL MOVE
  INTO THE SPRINGFIELD AREA...WHICH ALREADY RECEIVED HEAVY RAINFALL
  AROUND 4 PM.

* 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...SPRINGFIELD...BATTLEFIELD AND WILLARD.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE 
WARNED AREA.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

LAT...LON 3731 9346 3711 9338 3710 9317 3731 9321

LINDENBERG

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 3:16 PM CDT	Severe Thunderstorm Warning	SGF	Greene	59 min
Aug 9, 4:16 PM CDT	Flash Flood Warning	SGF	Oregon, Shannon	4 hr
Aug 9, 4:20 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	40 min

Nearby

Flash Flood Warnings in Missouri, 2001 Every 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.