Alert archive / Texas / Flash Flood Warnings in 1992
Flash Flood Warning 37, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Apr 17, 1992, 2:55 AM CDT for Real County, Uvalde County, Texas. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Apr 17, 1992, 2:55 AM CDT (07:55 UTC)
- Expired
- Apr 17, 1992, 5:00 AM CDT
- In force
- 2 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Real County, TX, Uvalde County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 7.9 hours before the alert went out and 104 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
- 2243 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1067 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 44 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 170757 FFWSAT TXC385-463-171000- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 255 AM CDT FRI APR 17 1992 THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 500 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTH TEXAS ...REAL COUNTY...UVALDE COUNTY NATIONAL WEATHER RADAR WAS INDICATING A LINE OF STRONG THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL ACROSS MUCH OF REAL AND UVALDE COUNTIES. THIS LINE HAD SLOWED ITS EASTWARD MOVEMENT OVER THE PAST HALF HOUR TO LESS THAN 10 MILES AN HOUR. GARNER STATE PARK HAS BEEN EXPERIENCING VERY HEAVY RAINFALL FOR THE PAST 15 OR 20 MINUTES. 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 IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND OTHER PEOPLE IN RECREATION AREAS ALONG CREEKS...STREAMS...AND RIVERS IN THE WARNING AREA SHOULD MOVE TO HIGH GROUND IMMEDIATELY.
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 16, 9:12 PM CDT, 5 hours 43 minutes before
TXZ054-170415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 915 PM CDT THU APR 16 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL MIDNIGHT CDT... AT 910 PM CDT THUNDERSTORMS WITH FREQUENT DANGEROUS LIGHTNING WERE OBSERVED AT DEL RIO INTERNATIONAL AIRPORT. RADAR ALSO INDICATED A THUNDERSTORM DEVELOPING 15 MILES WEST OF DEL RIO MOVING SLOWLY EAST. THIS THUNDERSTORM WAS PART OF A LARGE AREA OF THUNDERSTORMS STRETCHING FROM 10 MILES WEST TO 50 MILES WEST TO 50 MILES SOUTHWEST OF DEL RIO. LARGE HAIL...HEAVY RAIN...AND DAMAGING WINDS ARE POSSIBLE WITH THESE STORMS. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Apr 16, 11:31 PM CDT, 3 hours 24 minutes before
TXZ054-170630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1135 PM CDT THU APR 16 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL MIDNIGHT CDT... AT 1130 PM CDT RADAR INDICATED AN INTENSE THUNDERSTORM WITH HAIL 45 MILES NORTH OF DEL RIO...10 MILES NORTH OF LOMA ALTA. THIS THUNDERSTORM WAS PART OF A LARGE AREA OF THUNDERSTORMS STRETCHING FROM 75 MILES NORTH TO 75 MILES SOUTH OF DEL RIO. THESE STORMS WERE MOVING TO THE EAST AT 10 MPH. SOME LOW WATER CROSSINGS AND LOW LYING AREAS MAY BE FLOODED. MOTORISTS ARE URGED TO SLOW DOWN AND USE CAUTION WHEN APPROACHING LOW WATER CROSSINGS. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Apr 16, 11:37 PM CDT, 3 hours 18 minutes before
TXZ038-039-041-170700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1130 PM CDT THU APR 16 1992 WEATHER SERVICE RADARS SHOW AN AREA OF SHOWERS AND THUNDERSTORMS ALONG THE RIO GRANDE FROM SOUTH OF LAREDO TO NORTH OF DEL RIO. AT 1130 PM...A THUNDERSTORM WITH LOCALLY HEAVY RAIN...GUSTY WINDS AND SMALL HAIL IS LOCATED NEAR THE EAGLE PASS-PIEDRAS NEGRAS AREA. OTHER THUNDERSTORMS ARE WEST OF LAREDO. THESE STORMS HAVE SHOWN LITTLE IF ANY MOVEMENT DURING THE PAST HOUR BUT COULD DRIFT ACROSS THE RIVER AND AFFECT PARTS OF TEXAS DURING THE NEXT FEW HOURS. RESIDENTS ALONG THE RIO GRANDE...ESPECIALLY IN AND AROUND EAGLE PASS AND LAREDO...SHOULD BE ALERT TO THE APPROACHING WEATHER AND PLAN ACCORDINGLY. THE HEAVY RAIN COULD PRODUCE LOCALIZED FLOODING IN LOW- LYING AREAS NEAR THE RIO GRANDE. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED AS CONDITIONS WARRANT.
Special weather statement, Apr 17, 12:28 AM CDT, 2 hours 27 minutes before
TXZ054-170730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1230 AM CDT FRI APR 17 1992 AT 1225 AM CDT THUNDERSTORMS WITH FREQUENT DANGEROUS LIGHTNING WERE OBSERVED AT THE DEL RIO INTERNATIONAL AIRPORT. RADAR ALSO INDICATED A LARGE AREA OF THUNDERSTORMS STRETCHING FROM 75 MILES SOUTHEAST TO 50 MILES WEST OF DEL RIO. LITTLE MOVEMENT WAS NOTED WITH THESE STORMS. SOME LOW WATER CROSSINGS AND LOW LYING AREAS MAY BE FLOODED. MOTORISTS ARE URGED TO SLOW DOWN AND USE CAUTION WHEN APPROACHING LOW WATER CROSSINGS. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED AS CONDITIONS WARRANT.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 7:15 PM CDT | Flash Flood Warning | EWX | Bexar, Medina | 4 hr |
| Apr 16, 7:44 PM CDT | Flash Flood Warning | EWX | Medina | 4 hr |
| Apr 17, 12:26 AM CDT | Flash Flood Warning | EWX | Maverick | 3 hr |
| Apr 17, 5:38 AM CDT | Severe Thunderstorm Warning | EWX | McMullen | 52 min |
| Apr 17, 3:08 PM CDT | Flash Flood Warning | EWX | Jackson, Victoria | 2 hr |
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.