Alert archive / Texas / Flash Flood Warnings in 1992

Flash Flood Warning 72, NWS Austin/San Antonio, TX

May 27, 1992Travis County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 27, 1992, 7:27 PM CDT for Travis County, Texas. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: May 27, 1992, 7:27 PM CDT (00:27 UTC)
Expired: May 27, 1992, 9:40 PM CDT
In force: 2 hr
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County Travis County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 00:00Z, 0.5 hours before the alert went out and 212 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: 615 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 823 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 179 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 280027
FFWAUS
TXC453-280330-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
727 PM CDT WED MAY 27 1992
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL 1030 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...TRAVIS COUNTY
 
AT 726 PM...RADAR SHOWED ADDITIONAL SEVERE THUNDERSTORM DEVELOPMENT
OVER WETSERN LAKE TRAVIS AND THE STORMS WERE NEARLY STATIONARY. AS A
RESULT OF THE NEARLY STATIONARY MOVEMENTS AND REPORTS OF VERY
TORRENTIAL RAINFALL FLOODING IS ALSO LIKELY...ESPECIALLY OVER WESTERN
TRAVIS COUNTY.
 
THE SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 830 PM...AND THE
FLASH FLOOD WARNING UNTIL 1030 PM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 7:05 PM CDT	Severe Thunderstorm Warning	EWX	Hays	115 min
May 27, 7:27 PM CDT	Severe Thunderstorm Warning	EWX	Travis	63 min
May 27, 7:40 PM CDT	Severe Thunderstorm Warning	EWX	Williamson	65 min
May 27, 8:01 PM CDT	Severe Thunderstorm Warning	EWX	Hays	59 min
May 27, 8:04 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop	56 min
May 27, 8:50 PM CDT	Severe Thunderstorm Warning	EWX	Caldwell	40 min
May 27, 8:53 PM CDT	Severe Thunderstorm Warning	EWX	Hays	52 min
May 27, 9:26 PM CDT	Severe Thunderstorm Warning	EWX	Comal	49 min
May 28, 4:14 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop	61 min
May 28, 4:59 PM CDT	Severe Thunderstorm Warning	EWX	DeWitt, Victoria	46 min
May 28, 5:16 PM CDT	Severe Thunderstorm Warning	EWX	Jackson	44 min
May 28, 5:40 PM CDT	Tornado Warning	EWX	Goliad	50 min
May 28, 6:50 PM CDT	Severe Thunderstorm Warning	EWX	Goliad	55 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.