Alert archive / Texas / Flash Flood Warnings in 1992
Flash Flood Warning 40, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Apr 25, 1992, 9:34 AM CDT for Atascosa County, Texas. It was in force for 116 min.
The area
The counties it named.
The facts
- Issued
- Apr 25, 1992, 9:34 AM CDT (14:34 UTC)
- Expired
- Apr 25, 1992, 11:30 AM CDT
- In force
- 116 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Atascosa County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 2.6 hours before the alert went out and 174 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.
- Mixed-layer CAPE
- 1155 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 881 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- -42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 251435 FFWSAT TXC013-251630- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 934 AM CDT SAT APR 25 1992 THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1130 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTH TEXAS ...ATASCOSA COUNTY REPORTS FROM ATASCOSA COUNTY INDICATED THAT OVER THREE INCHES OF RAIN MAY HAVE FALLEN IN SOME LOCATIONS. NATIONAL WEATHER SERVICE RADAR CONTINUED TO SHOW A BROAD AREA OF MODERATE RAINFALL ACROSS MUCH OF THE COUNTY. THIS AREA WAS NEARLY STATIONARY. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...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 DURING THREATENING RAINS.
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
Special weather statement, Apr 25, 5:12 AM CDT, 4 hours 22 minutes before
TXZ038-039-251200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 510 AM CDT SAT APR 25 1992 RADAR INDICATED AN AREA OF NUMEROUS SHOWERS AND THUNDERSTORMS OVER NORTHERN FRIO...SOUTHERN UVALDE AND SOUTHWEST MEDINA COUNTIES. VERY HEAVY RAIN...FREQUENT LIGHTNING...GUSTY WINDS AND POSSIBLE HAIL CAN BE EXPECTED OVER THE NEXT 2 HOURS. MOTORISTS DRIVING THROUGH THESE AREAS SHOULD BE ALERT FOR FLOODED LOW WATER CROSSINGS. ANOTHER THUNDERSTORM WAS LOCATED SOUTHWEST OF SAN ANTONIO MOVING TO THE SOUTH AT AROUND 15 MILES AN HOUR.
Special weather statement, Apr 25, 5:19 AM CDT, 4 hours 15 minutes before
TXZ054-251220- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 520 AM CDT SAT APR 25 1992 AT 515 AM CDT A THUNDERSTORM WITH RAIN AND FREQUENT DANGEROUS LIGHTNING WAS OBSERVED AT DEL RIO INTERNATIONAL AIRPORT. RADAR INDICATED A LARGE AREA THUNDERSTORMS WITH VERY HEAVY RAIN ALONG THE RIO GRANDE RIVER FROM DEL RIO TO LAREDO AND EASTWARD TO NEAR HONDO. THE STRONGEST STORMS WERE LOCATED ALONG HIGHWAY 90 FROM UVALDE TO HONDO. MOVEMENT WAS TO THE NORTH AT 10 MPH. SMALL HAIL...HEAVY RAIN...AND STRONG GUSTY WINDS ARE LIKELY WITH THIS STORM. BOATERS AND FISHERMEN ON LAKE AMISTAD AND AREA RIVERS SHOULD KEEP A WATCH FOR THREATENING WEATHER AND BE PREPARED TO MOVE TO SHORE AND AWAY FrROM THE WATER IF THUNDER IS HEARD...LIGHTNING IS SEEN OR WINDS BEGIN INCREASING. STAY TUNED TO YOUR LOCAL NOAA WEATHER RADIO...TV AND RADIO STATIONS FOR FURTHER STATEMENTS OR WARNINGS.
Special weather statement, Apr 25, 6:21 AM CDT, 3 hours 13 minutes before
TXZ038>039-041-054-251400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 620 AM CDT SAT APR 25 1992 AT 615 AM RADAR INDICATED AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS OVER SOUTH CENTRAL TEXAS FROM SOUTH OF HONDO TO NEAR PLEASANTON TO KARNES CITY... MOVING SOUTH AT 15 MILES AN HOUR. THIS ACTIVITY WILL AFFECT PARTS OF ATASCOSA...FRIO...LA SALLE...MCMULLEN AND KARNES COUNTIES FOR THE NEXT 1 TO 2 HOURS. ANOTHER AREA SCATTERED SHOWERS AND THUNDERSTORMS WAS IN THE LAREDO AREA EASTWARD TO NEAR FREER...MOVING SLOWLY EAST. THIS ACTIVITY WILL AFFECT LAREDO AND PARTS OF WEBB COUNTY FOR THE NEXT FEW HOURS. BRIEF PERIODS OF HEAVY RAIN...FREQUENT LIGHTNING...GUSTY WINDS AND SOME HAIL CAN BE EXPECTED FROM THE STRONGER THUNDERSTORMS.
Special weather statement, Apr 25, 6:21 AM CDT, 3 hours 13 minutes before
TXZ034>041-251300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 615 AM CDT SAT APR 25 1992 AT 612 AM CDT A 10 MILE WIDE LINE OF STRONG THUNDERSTORMS WAS FROM JOURDANTON IN ATASCOSA COUNTY OUT EAST ACROSS KARNES CITY...AND THEN NORTHEAST ACROSS CUERO TO HALLETTSVILLE IN LAVACO COUNTY. OTHER THUNDERSTORMS WERE FROM LEXINGTON IN LEE COUNTY OUT EAST ACROSS NORTHERN CALDWELL COUNTY INTO BRAZOS COUNTY NORTH OF BRYAN. THE THUNDERSTORMS WERE MOVING SOUTH AT 15 MILES AN HOUR WITH NO CHANGE IN INTENSITY SHOWN BETWEEN 530 AND 610 AM CDT. WITHROW
Special weather statement, Apr 25, 7:11 AM CDT, 2 hours 23 minutes before
TXZ038>039-040-041-054-251400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 710 AM CDT SAT APR 25 1992 AT 705 AM RADAR INDICATED AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS OVER
Special weather statement, Apr 25, 7:52 AM CDT, 1 hour 42 minutes before
TXZ038>039-040-041-054-251400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 750 AM CDT SAT APR 25 1992 AT 745 AM RADAR INDICATED AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS OVER SOUTH CENTRAL TEXAS AND THE SAN ANTONIO METROPOLITAN AREA MOVING SOUTHEAST AT 10 MILES AN HOUR. THIS ACTIVITY WILL CAUSE PERIODS OF RAIN...OCCASIONAL LIGHTNING...AND GUSTY WINDS OVER THE SAN ANTONIO AREA AND BEXAR COUNTY FOR THE NEXT 1 TO 2 HOURS. ANOTHER AREA OF SCATTERED SHOWERS AND THUNDERSTORMS WAS LOCATED SOUTH AND SOUTHEAST OF SAN ANTONIO...ALSO MOVING SOUTHEAST AT 10 MILES AN HOUR. THIS WILL AFFECT ATASCOSA...WILSON...KARNES...MCMULLEN...FRIO AND LASALLE COUNTIES FOR THE NEXT FEW HOURS. SHOWERS AND THUNDERSTORMS WERE ALSO IN THE LAREDO AREA AND WEBB COUNTY AND WILL ALSO CONTINUE FOR THE NEXT FEW HOURS. BRIEF PERIODS OF HEAVY RAIN...FREQUENT LIGHTNING...GUSTY WINDS AND SOME HAIL CAN BE EXPECTED FROM THE STRONGER THUNDERSTORMS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 2:14 AM CDT | Flash Flood Warning | EWX | Maverick | 4 hr |
| Apr 25, 11:02 AM CDT | Flash Flood Warning | EWX | Medina | 118 min |
Nearby
Flash Flood Warnings in Texas, 1992Every 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.