Alert archive / Texas / Flash Flood Warnings in 1992
Flash Flood Warning 89, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 22, 1992, 6:54 PM CDT for Webb County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Sep 22, 1992, 6:54 PM CDT (23:54 UTC)
- Expired
- Sep 22, 1992, 10:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Webb County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 11.9 hours before the alert went out and 196 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
- 2571 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 813 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 222359 FFWSAT TXC479-230300- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 654 PM CDT TUE SEP 22 1992 THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1000 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTH TEXAS ...WEBB COUNTY NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS OCCURRING OVER SEVERAL SECTIONS OF WEBB COUNTY. MOVEMENT OF THESE STORMS IS QUITE SLOW. HOWEVER...IT DOES APPEAR THAT TWO OF THE STORMS MAY MERGE IN THE CENTRAL PART OF THE COUNTY WITHIN THE NEXT HALF HOUR. WHEN THIS OCCURS...TORRENTIAL RAINFALL AND SUBSEQUENT FLOODING MAY RESULT. PERSONS IN THE PATH OF THESE STORMS ALSO MAY EXPERIENCE STRONG GUSTY WIND AND FREQUENT LIGHTNING AS THE STORMS MOVE THROUGH. 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, Sep 22, 1:39 PM CDT, 5 hours 15 minutes before
TXZ041-221930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO, TX 135 PM CDT TUE SEP 22 1992 ...THUNDERSTORMS DEVELOPING IN WEBB COUNTY... STRONG THUNDERSTORMS BEGAN DEVELOPING IN WEBB COUNTY DURING THE PAST HOUR. ONE STRONG THUNDERSTORM WAS LOCATED JUST NORTHWEST OF LAREDO AT 135 PM MOVING TOWARD THE SOUTHEAST AT 15 MPH. THIS THUNDERSTORM MAY MOVE ACROSS THE LAREDO AREA DURING THE NEXT HOUR...PRODUCING GUSTY WINDS...BRIEF HEAVY RAINS...FREQUENT DANGEROUS LIGHTNING...AND POSSIBLE HAIL. PEOPLE IN AND AROUND THE LAREDO AREA SHOULD MONITOR WEATHER CONDITIONS THROUGH THE REMAINDER OF THE AFTERNOON AND BE PREPARED TO PROTECT LIFE AND PROPERTY SHOULD STRONG THUNDERSTORMS THREATEN THE AREA.
Special weather statement, Sep 22, 2:39 PM CDT, 4 hours 15 minutes before
TXZ041-222045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO, TX 240 PM CDT TUE SEP 22 1992 ...STRONG THUNDERSTORMS CONTINUE ACROSS SOUTHERN WEBB COUNTY... STRONG THUNDERSTORMS CONTINUED ACROSS SOUTHERN WEBB COUNTY AT 240 PM. THESE THUNDERSTORMS WERE AROUND THE LAREDO AREA AND WERE MOVING SOUTHWARD AT 15 MPH. AS THESE THUNDERSTORMS MOVE ACROSS THE LAREDO AREA DURING THE NEXT HOUR...STRONG GUSTY WINDS...BRIEF BUT HEAVY RAINS...FREQUENT DANGEROUS LIGHTNING...AND SOME HAIL CAN BE EXPECTED. ALSO ANY LOW-LYING AREAS MAY BE FLOODED BRIEFLY WHILE THE RAINWATER RUNS OFF. PEOPLE IN AND AROUND THE LAREDO AREA SHOULD MONITOR WEATHER CONDITIONS THROUGH THE REMAINDER OF THE AFTERNOON AND BE PREPARED TO PROTECT LIFE AND PROPERTY SHOULD STRONG THUNDERSTORMS THREATEN THE AREA.
Special weather statement, Sep 22, 3:40 PM CDT, 3 hours 14 minutes before
TXZ041-222200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO, TX 340 PM CDT TUE SEP 22 1992 ...STRONG THUNDERSTORMS CONTINUE ACROSS SOUTHERN WEBB COUNTY... AT 340 PM CDT AN AREA OF SHOWERS AND THUNDERSTORMS WAS OVER SOUTHERN WEBB COUNTY. THESE SHOWERS AND THUNDERSTORMS WERE IN THE LAREDO AREA AND EXTENDED SOUTH TOWARD FALCON LAKE AND EAST TOWARD HEBBRONVILLE. SHOWERS AND THUNDERSTORMS WERE MOVING SOUTH AT 10 MPH. STRONG GUSTY WINDS...BRIEF BUT HEAVY RAINS...FREQUENT DANGEROUS LIGHTNING... AND SOME HAIL CAN BE EXPECTED FROM THE STRONGER THUNDERSTORMS IN THE NEXT 1 TO 2 HOURS. ALSO ANY LOW-LYING AREAS MAY BE FLOODED BRIEFLY WHILE THE RAINWATER RUNS OFF. PEOPLE IN AN`D AROUND THE LAREDO AREA SHOULD MONITOR WEATHER CONDITIONS THROUGH THE REMAINDER OF THE AFTERNOON AND BE PREPARED TO PROTECT LIFE AND PROPERTY SHOULD STRONG THUNDERSTORMS THREATEN THE AREA.
Special weather statement, Sep 22, 5:57 PM CDT, 57 minutes before
TXZ041-230100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO, TX 555 PM CDT TUE SEP 22 1992 ...STRONG THUNDERSTORMS ARE REDEVELOPING ACROSS WESTERN WEBB COUNTY... AT 555 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED REDEVELOPMENT OF STRONG THUNDERSTORMS ALONG THE RIO GRANDE RIVER...ABOUT 20 MILES NORTHWEST OF LAREDO. THESE THUNDERSTORMS WERE SHOWING LITTLE SIGN OF MOVEMENT...BUT WERE DEVELOPING NORTHWARD INTO WESTERN AND CENTRAL PARTS OF WEBB COUNTY. THE INTENSITY AND STATIONARY NATURE OF THE THUNDERSTORMS HEIGHTENS THE THREAT OF LOCALIZED FLOODING OVER PORTIONS OF WEBB COUNTY...ESPECIALLY IN AND NEAR LOW-LYING AREAS OR LOW-WATER CROSSINGS. MASSIVE RUNOFF INTO THE RIO GRANDE RIVER AND SUBSEQUENT DOWNSTREAM RISES CAN BE EXPECTED IF THE STORMS PERSIST MUCH LONGER. RESIDENTS IN FLOOD-PRONE AREAS NEAR THE RIO GRANDE RIVER SHOULD REMAIN ALERT TO THE POSSIBILITY OF FLOODING AND BE PREPARED TO TAKE ACTION TO PROTECT LIFE AND PROPERTY SHOULD FLOODING OCCUR OR A WARNING BE ISSUED. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED AS NECESSARY. THESE WILL BE BROADCAST OVER LOCAL RADIO...TELEVISION OR NOAA WEATHER RADIO.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 7:30 PM CDT | Flash Flood Warning | EWX | Travis | 90 min |
| Sep 21, 7:30 PM CDT | Severe Thunderstorm Warning | EWX | Travis | 90 min |
| Sep 21, 7:52 PM CDT | Severe Thunderstorm Warning | EWX | Lee | 53 min |
| Sep 21, 8:18 PM CDT | Severe Thunderstorm Warning | EWX | Burleson | 117 min |
| Sep 21, 8:18 PM CDT | Severe Thunderstorm Warning | EWX | Fayette | 117 min |
| Sep 21, 9:07 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 53 min |
| Sep 21, 10:05 PM CDT | Severe Thunderstorm Warning | EWX | Lavaca | 55 min |
| Sep 22, 1:01 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop | 59 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.