Alert archive / Texas / Flash Flood Warnings in 1992

Flash Flood Warning 10, NWS Austin/San Antonio, TX

February 11, 1992Lavaca County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Feb 11, 1992, 2:18 PM CST for Lavaca County, Texas. It was in force for 57 min.

The area

The counties it named.

The facts

Issued: Feb 11, 1992, 2:18 PM CST (20:18 UTC)
Expired: Feb 11, 1992, 3:15 PM CST
In force: 57 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County Lavaca County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 8.3 hours before the alert went out and 188 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: 265 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 627 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 144 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KVCT 112020
FFWVCT
TXC285-112115-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE VICTORIA TX
218 PM CST TUE FEB 11 1992
 
THE NATIONAL WEATHER SERVICE IN VICTORIA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  315 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...WEST CENTRAL LAVACA COUNTY
 
THE VICTORIA WEATHER RADAR AT 2 15PM CST INDICATED A THUNDERSTORM WITH
VERY HEAVY RAIN WAS LOCATED BETWEEN SHINER AND YOAKUM MOVING TO THE
EAST-NORTHEAST AT LESS THAN 10 MPH. THIS THUNDERSTORM WILL CAUSE
FLOODING OF ROADWAYS AND LOW AREAS AS IT MOVES TOWARD HALLETTSVILLE
DURING THIS NEXT HOUR. SOME SMALL HAIL MAY ALSO OCCUR.
 
 
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.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
IF THREATING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY...YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY
TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL
WEATHER SERVICE OFFICE.

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 11, 11:30 AM CST	Flash Flood Warning	EWX	Jackson, Lavaca	60 min
Feb 11, 1:27 PM CST	Flash Flood Warning	EWX	Jackson, Lavaca	63 min
Feb 11, 3:20 PM CST	Flash Flood Warning	EWX	Lavaca	55 min
Feb 11, 4:16 PM CST	Flash Flood Warning	EWX	DeWitt, Lavaca	59 min
Feb 11, 4:52 PM CST	Severe Thunderstorm Warning	EWX	Burleson	68 min
Feb 11, 4:52 PM CST	Severe Thunderstorm Warning	EWX	Williamson	68 min
Feb 11, 5:30 PM CST	Flash Flood Warning	EWX	Jackson, Lavaca	60 min
Feb 11, 5:30 PM CST	Flash Flood Warning	EWX	DeWitt	60 min
Feb 11, 5:49 PM CST	Severe Thunderstorm Warning	EWX	Burnet, Travis, Williamson	26 min

Nearby

Flash Flood Warnings in Texas, 1992 Every flash flood warning in 1992

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.