Alert archive / Texas / Flash Flood Warnings in 1992
Flash Flood Warning 39, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Apr 25, 1992, 2:14 AM CDT for Maverick County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 25, 1992, 2:14 AM CDT (07:14 UTC)
- Expired
- Apr 25, 1992, 6:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Maverick County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 7.2 hours before the alert went out and 86 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
- 2776 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 1070 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- -17 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 250716 FFWSAT TXC323-251100- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 214 AM CDT SAT APR 25 1992 THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 600 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTH TEXAS ...MAVERICK COUNTY AT 205 AM CDT RADAR INDICATED NUMEROUS SHOWERS AND THUNDERSTORMS OVER MAVERICK COUNTY...INCLUDING THE EAGLE PASS AREA. THESE STORMS WERE NEARLY STATIONARY AND SHOWED NO SIGNS OF WEAKENING. CONDITIONS REMAIN FAVORABLE FOR THESE SHOWERS AND THUNDERSTORMS TO CON OVER MAVERICK COUNTY FOR THE NEXT FEW HOURS...CAUSING PERIODS OF HEAVY RAIN...STRONG WINDS...FREQUENT LIGHTNING AND SOME HAIL. AS A RESULT...FLASH FLOODING AND SEVERE WEATHER ARE LIKELY OVER MAVERICK COUNTY FOR THE NEXT FEW HOURS. 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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. 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 24, 10:04 PM CDT, 4 hours 10 minutes before
TXZ054-250400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1005 PM CDT FRI APR 24 1992 AT 1000 PM CDT RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN ALONG THE NORTHWEST VAL VERDE COUNTY LINE. LITTLE MOVEMENT WAS INDICATED. SMALL HAIL...VERY HEAVY RAIN...FREQUENT DANGEROUS LIGHTNING AND STRONG GUSTY WINDS ARE LIKELY WITH THIS STORM. BOATERS AND FISHERMEN ALONG THE PECOS RIVER SHOULD KEEP A WATCH FOR THREATENING WEATHER kAND BE PREPARED TO MOVE TO SHORE AND AWAY FROM 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 24, 10:47 PM CDT, 3 hours 27 minutes before
TXZ034>037-250500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1045 PM CDT FRI APR 24 1992 ...SHOWERS AND THUNDERSTORMS OVER PARTS OF CENTRAL TEXAS... AT 1040 PM...RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS FROM THE HILL COUNTRY EAST OF LLANO CITY TO NORTH OF LIBERTY HILL AND THEN INTO CENTRAL TEXAS SOUTHEAST OF TEMPLE. THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL WERE FROM JARRELL TO ROSEBUD. THE THUNDERSTORMS WERE MOVING VERY SLOWLY TO THE SOUTHWEST. BECAUSE OF THE SLOW MOVEMENT...THESE THUNDERSTORMS COULD PRODUCE LOCAL FLOODING. PERSONS IN NORTHWEST MILAM AND NORTHERN WILLIAMSON COUNTY SHOULD PREPARE FOR HEAVY RAINFALL DRUING THE NEXT ONE TO TWO HOURS. THESE& STORMS HAVE ALSO PRODUCED FREQUENT LIGHTNING. STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS.
Special weather statement, Apr 24, 11:16 PM CDT, 2 hours 58 minutes before
TXZ039-041-054-250700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1115 PM CDT FRI APR 24 1992 WIDELY SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER MEXICO LATE THIS EVENING FROM JUST WEST OF COMSTOCK AND DEL RIO TO WEST OF EAGLE PASS AND LAREDO. THE ACTIVITY HAD DEVELOPED ALONG THE MOUNTAINS WEST OF THE RIO GRANDE...AND HAD MOVED SLOWLY NORTHWARD...REMAINING IN MEXICO. A VERY LARGE THUNDERSTORM WAS LOCATED 20 MILES NORTHWEST OF LAREDO AT 1110 PM THIS EVENING. IT WAS LIKELY PRODUCING VERY HEAVY RAIN AND FREQUENT LIGHTNING... AND WAS MOVING TO THE NORTHWEST AT 10 MPH. IT IS POSSIBLE THAT SOME OF THESE STORMS MAY MOVE ACROSS THE RIO GRANDE AFTER MIDNIGHT. THEY @HAVE THE POTENTIAL TO PRODUCE BRIEF...BUT VERY HEAVY RAIN... ALONG WITH DANGEROUS LIGHTNING AND WIND GUSTS TO 30 TO 40 MPH. NATIONAL WEATHER SERVICE RADAR WILL CONTINUE TO MONITOR THESE STORMS WHILE THEY HAVE THE POTENTIAL TO AFFECT SOUTH TEXAS.
Special weather statement, Apr 25, 12:28 AM CDT, 1 hour 46 minutes before
TXZ038-041-054-250700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1228 AM CDT SAT APR 25 1992 AT 1225 AM CDT THE NATIONAL WEATHER SERVICE RADAR IN HONDO...TEXAS SHOWED AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS OVER NORTHERN MAVERICK AND NORTHERN ZAVALA COUNTIES MOVING NORTH AT 5 MILES AN HOUR. THIS ACTIVITY WAS NEAR EAGLE PASS AND ALSO BETWEEN EAGLE PASS AND LA PRYOR. IN ADDITION...AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS WAS OVER NORTHERN WEBB COUNTY AND ABOUT 20 TO 50 MILES WEST OF LAREDO AND SOUTH OF EAGLE PASS. SOME OF THESE STORMS HAVE THE POTENTIAL TO PRODUCE BRIEF...BUT VERY HEAVY RAIN...ALONG WITH DANGEROUS LIGHTNING AND WIND GUSTS TO 30 TO 40 MPH IN THE NEXT FEW HOURS. NATIONAL WEATHER SERVICE RADAR WILL CONTINUE TO MONITOR THESE STORMS WHILE THEY HAVE THE POTENTIAL TO AFFECT SOUTH TEXAS.
Special weather statement, Apr 25, 1:15 AM CDT, 59 minutes before
TXZ038-041-054-250800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 115 AM CDT SAT APR 25 1992 AT 110 AM CDT THE NATIONAL WEATHER SERVICE RADAR IN HONDO...TEXAS SHOWED AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS OVER NORTHERN MAVERICK AND NORTHERN ZAVALA COUNTIES MOVING NORTH AT 5 MILES AN HOUR. THIS ACTIVITY WAS NEAR EAGLE PASS AND CONTINUED BETWEEN EAGLE PASS AND LA PRYOR. IN ADDITION...AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS WAS OVER LAREDO AND OVER NORTHERN WEBB COUNTY AND SOUTHERN MAVERICK COUNTY. SOME OF THESE STORMS HAVE THE POTENTIAL TO PRODUCE BRIEF...BUT VERY HEAVY RAIN...ALONG WITH DANGEROUS LIGHTNING AND WIND GUSTS TO 30 TO 40 MPH IN THE NEXT :FEW HOURS. NATIONAL WEATHER SERVICE RADAR WILL CONTINUE TO MONITOR THESE STORMS WHILE THEY HAVE THE POTENTIAL TO AFFECT SOUTH TEXAS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 9:34 AM CDT | Flash Flood Warning | EWX | Atascosa | 116 min |
| 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.