Alert archive / Texas / Flash Flood Warnings in 1992

Flash Flood Warning 31, NWS Austin/San Antonio, TX

March 4, 1992Blanco County, Hays County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Mar 4, 1992, 3:04 AM CST for Blanco County, Hays County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Mar 4, 1992, 3:04 AM CST (09:04 UTC)
Expired: Mar 4, 1992, 6:00 AM CST
In force: 3 hr
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

Counties Blanco County, TX, Hays County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 00:00Z, 9.1 hours before the alert went out and 229 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: 1381 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 973 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 040905
FFWAUS
TXC031-209-041200-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
304 AM CST WED MAR 4 1992
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  600 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...BLANCO COUNTY...HAYS COUNTY
 
AT 300 AM RADAR SHOWED VERY STRONG THUNDERSTORMS MOVING INTO HAYS AND
BLANCO COUNTIES FROM THE SOUTH. THESE THUNDERSTORMS ARE PRODUCING VERY
HEAVY RAINFALL AND WILL BE MOVING OVER AREAS THAT HAVE ALREADY SEEN
HEAVY RAINFALL. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 25
MILES AN HOUR.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
MOST DEATHS IN FLASH FLOODING 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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Mar 3, 11:48 PM CST, 3 hours 16 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN TX
1145 PM CST TUE MAR 03 1992

         STORM SYSTEM TUESDAY...3/03/1992...

TIME   COUNTY      EVENT
2110   MILLS       MARBLE TO 3/4 INCH HAIL NEAR GOLDTHWAITE AS REPORTED
                   BY THE MILLS COUNTY SHERIFF OFFICE.
2230   FAYETTE     WIND GUST TO 60 MPH NEAR CISTERN AS REPORTED BY TV-24
                   WEATHER WATCHER.
2240   BASTROP     SMITHVILLE POLICE REPORTED 3/4 INCH TO A FEW GOLFBALL
                   SIZE HAILSTONES IN THE CITY OF SMITHVILLE WITH 40 TO
                   50 MPH WINDS.

LUNA
.END

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 3, 6:00 PM CST	Severe Thunderstorm Warning	EWX	Kinney	60 min
Mar 3, 6:05 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	55 min
Mar 3, 6:46 PM CST	Severe Thunderstorm Warning	EWX	Real	59 min
Mar 3, 6:54 PM CST	Severe Thunderstorm Warning	EWX	Bandera, Kerr	2 hr
Mar 3, 7:05 PM CST	Severe Thunderstorm Warning	EWX	Kinney, Uvalde	55 min
Mar 3, 7:30 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	55 min
Mar 3, 8:04 PM CST	Severe Thunderstorm Warning	EWX	Uvalde	41 min
Mar 3, 8:18 PM CST	Severe Thunderstorm Warning	EWX	Zavala	57 min
Mar 3, 8:34 PM CST	Severe Thunderstorm Warning	EWX	Webb	56 min
Mar 3, 9:02 PM CST	Severe Thunderstorm Warning	EWX	Frio	58 min
Mar 3, 9:45 PM CST	Flash Flood Warning	EWX	Bexar	4 hr
Mar 3, 10:05 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	55 min
Mar 3, 10:10 PM CST	Severe Thunderstorm Warning	EWX	Bexar	65 min
Mar 3, 10:15 PM CST	Severe Thunderstorm Warning	EWX	Bastrop	35 min
Mar 3, 10:32 PM CST	Severe Thunderstorm Warning	EWX	Fayette, Lee	43 min
Mar 3, 10:47 PM CST	Severe Thunderstorm Warning	EWX	Wilson	58 min
Mar 4, 12:40 AM CST	Flash Flood Warning	EWX	Bandera, Comal, Kendall, Kerr	6 hr
Mar 4, 12:40 AM CST	Flash Flood Warning	EWX	Real	6 hr
Mar 4, 2:17 AM CST	Flash Flood Warning	EWX	Medina, Uvalde	6 hr
Mar 4, 3:55 AM CST	Severe Thunderstorm Warning	EWX	Comal	50 min
Mar 4, 5:26 AM CST	Flash Flood Warning	EWX	Bastrop, Travis, Williamson	4 hr
Mar 4, 5:26 AM CST	Flash Flood Warning	EWX	Blanco, Caldwell, Hays	4 hr
Mar 4, 4:17 PM CST	Severe Thunderstorm Warning	EWX	Burnet	58 min
Mar 4, 4:58 PM CST	Severe Thunderstorm Warning	EWX	Travis, Williamson	62 min
Mar 4, 5:15 PM CST	Severe Thunderstorm Warning	EWX	Blanco, Hays	60 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.