Alert archive / Missouri / Flash Flood Warnings in 1997

Flash Flood Warning 39, NWS Springfield, MO

June 25, 1997St. Clair County, Vernon County, Missouri

NWS Springfield, MO issued this flash flood warning at Jun 25, 1997, 4:35 PM CDT for St. Clair County, 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 counties it named.

The facts

Issued: Jun 25, 1997, 4:35 PM CDT (21:35 UTC)
Expired: Jun 25, 1997, 8:40 PM CDT
In force: 4 hr
Issued by: NWS Springfield, MO
Area: Whole counties

Counties St. Clair County, MO, Vernon County, MO

The radar

The Springfield radar (KSGF), 98 km from the middle of the area, began a volume at 21:35 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, 9.6 hours before the alert went out and 118 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: 922 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 1129 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 23 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 
TTAA00 KSGF 252136
FFWSGF
MOC015-185-217-260140-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
435 PM CDT WED JUN 25 1997

* FLASH FLOOD WARNING FOR
  BENTON COUNTY - CENTRAL MISSOURI
  ST. CLAIR COUNTY - WEST CENTRAL MISSOURI
  VERNON COUNTY - WEST CENTRAL MISSOURI

* UNTIL 840 PM CDT
 
* SOME AREAS OR STREAMS AFFECTED
  NEVADA
  EAST OF HIGHWAY 65 ON ROUTE 7 IN BENTON COUNTY
  HIGHWAY KK 4.5 MILES WEST OF ROUTE 43 IN VERNON COUNTY
  HIGHWAY BB 4 MILES EAST OF ROUTE H IN ST CLAIR COUNTY

* CAUSE AND EFFECT
  A CLUSTER OF STORMS CONTINUES ACROSS VERNON...ST CLAIR
  AND BENTON COUNTIES PRODUCING LOCALLY HEAVY RAINFALL.

* FORECAST CONDITIONS
  THESE STORMS WILL MOVE SLOWLY AND REDEVELOP OVER THE AREA
  PRODUCING ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE 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.

GH/JDG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 4:35 PM CDT	Flash Flood Warning	SGF	Benton	4 hr
Jun 25, 4:49 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	46 min
Jun 25, 5:16 PM CDT	Severe Thunderstorm Warning	SGF	Cedar	34 min
Jun 25, 5:40 PM CDT	Flash Flood Warning	SGF	Maries	6 hr
Jun 25, 5:40 PM CDT	Severe Thunderstorm Warning	SGF	Phelps, Pulaski	50 min
Jun 25, 5:49 PM CDT	Severe Thunderstorm Warning	SGF	Greene	51 min
Jun 25, 5:57 PM CDT	Severe Thunderstorm Warning	SGF	Webster, Wright	48 min

Nearby

Flash Flood Warnings in Missouri, 1997 Every flash flood warning in 1997

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.