Alert archive / Texas / Flash Flood Warnings in 1992

Flash Flood Warning 63, NWS Austin/San Antonio, TX

May 21, 1992Hays County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 21, 1992, 4:01 PM CDT for Hays County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: May 21, 1992, 4:01 PM CDT (21:01 UTC)
Expired: May 21, 1992, 7:00 PM CDT
In force: 3 hr
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County Hays County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 12:00Z, 9.0 hours before the alert went out and 240 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: 156 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 621 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 43 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 KAUS 212102
FFWAUS
TXC209-453-491-220000-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
401 PM CDT THU MAY 21 1992
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  700 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...HAYS COUNTY...TRAVIS COUNTY...WILLIAMSON COUNTY
 
RADAR INDICATED AND REPORTS OF HEAVY RAINS HAVE OCCURED OVER PARTS OF
THESE COUNTIES AND MORE HEAVY RAIN TO THE SOUTHWEST COULD MOVE INTO
THE AREA. RAINS OF 1.51 INCHES HAVE BEEN RECEIVED IN SOUTH AUSTIN AND
POSSIBLE MORE IN SOME AREAS.
 
MOTORIST SHOULD DELAY DRIVING UNTIL HEAVY RAINS HAVE MOVED OUT OF THE
AREA...IF YOU MUST DRIVE USE EXTREME CAUTION.
 
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.

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, May 21, 1:38 PM CDT, 2 hours 23 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
138 PM CDT THU MAY 21 1992

DATE TIME

21   704AM CDT  TORNADO SPOTTED IN CITY OF GARDEN RIDGE BY SELMA AND
                GARDEN RIDGE POLICE OFFICERS.  BARNS DESTROYED, TREES
                UPROOTED AND FENCES DOWN. NO KNOWN INJURIES...BEXAR COUNTY
21   1100AM     STATE HWY 16 SOUTH OF KERRVILLE CLOSED DUE TO FLOODING...
                 KERR COUNTY
21   1130AM     HWY 187 CLOSED DUE TO FLOOtDING...KERR COUNTY
21   1145AM     ALL ROADS ON NORTH PRONGE OF MEDINA RIVER CLOSED DUE TO
                FLOODING...BANDERA COUNTY

Special weather statement, May 21, 2:40 PM CDT, 1 hour 21 minutes before

TXZ030-034>036-212030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
335 PM CDT THU MAY 21 1992

...NUMEROUS FUNNEL CLOUDS REPORTED OVER NORTHWESTERN TRAVIS AND WILLIAMSON
COUNTIES...

BETWEEN 154 AND 35 PM...FUNNEL CLOUDS WERE REPORTED BY THE LEANDER POLICE
AND FIRE DEPARTMENT RANGING BETWEEN LEANDER...CEDAR PARK AND BRUSHING
CREEK TO NEAR ROUND ROCK.   THEY WERE MOVING TO THE NORTH AT NEAR 30 MPH.

SO FAR ALL HAVE REMAINED ALOFT AND WERE NOT PRODUCING ANY DAMAGES.

BE ADVISED THAT BRIEF GUSTY WINDS CAN BE EXPECTED IN OR NEAR THE NUMEROUS
THUNDERSTORMS NOW MOVING FROM SOUTH TO NORTH THROUGH OUR SOUTH CENTRAL
TEXAS AREA.
JVD.

Special weather statement, May 21, 2:44 PM CDT, 1 hour 17 minutes before

TXZ030-034>036-212030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
335 PM CDT THU MAY 21 1992

...NUMEROUS FUNNEL CLOUDS REPORTED OVER NORTHWESTERN TRAVIS AND WILLIAMSON
COUNTIES...

BETWEEN 154 AND 335 PM...FUNNEL CLOUDS WERE REPORTED BY THE LEANDER POLICE
AND FIRE DEPARTMENT RANGING BETWEEN LEANDER...CEDAR PARK AND BRUSHY
CREEK TO NEAR ROUND ROCK.   THEY WERE MOVING TO THE NORTH AT NEAR 30 MPH.

SO FAR ALL HAVE REMAINED ALOFT AND WERE NOT PRODUCING ANY DAMAGES.

BE ADVISED THAT BRIEF GUSTY WINDS CAN BE EXPECTED IN OR NEAR THE NUMEROUS
THUNDERSTORMS NOW MOVING FROM SOUTH TO NORTH THROUGH OUR SOUTH CENTRAL
TEXAS AREA.
JVD

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 10:50 AM CDT	Flash Flood Warning	EWX	Bandera, Bexar, Kendall	115 min
May 21, 10:50 AM CDT	Flash Flood Warning	EWX	Kerr	115 min
May 21, 12:21 PM CDT	Flash Flood Warning	EWX	Bexar, Comal	2 hr
May 21, 3:26 PM CDT	Flash Flood Warning	EWX	Bexar	2 hr
May 21, 4:01 PM CDT	Flash Flood Warning	EWX	Travis, Williamson	3 hr
May 21, 4:24 PM CDT	Flash Flood Warning	EWX	Bexar, Comal	3 hr
May 21, 5:24 PM CDT	Flash Flood Warning	EWX	Bexar	3 hr

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.