Alert archive / Texas / Flash Flood Warnings in 1992
Flash Flood Warning 36, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Apr 17, 1992, 12:26 AM CDT for Maverick County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Apr 17, 1992, 12:26 AM CDT (05:26 UTC)
- Expired
- Apr 17, 1992, 3:30 AM CDT
- In force
- 3 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, 5.4 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
- 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 170528 FFWSAT TXC323-170830- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 1226 AM CDT FRI APR 17 1992 THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 330 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTH TEXAS ...MAVERICK COUNTY AT 1225 AM CDT...NATIONAL WEATHER SERVICE RADAR WAS INDICATING NUMEROUS SHOWERS AND STRONG THUNDERSTORMS ACROSS MAVERICK COUNTY. MOVEMENT WAS NORTH AT LESS THAN 10 MILES AN HOUR...THUS POINTING TO THE HIGH LIKELIHOOD OF SOME FLOODING WITHIN THE COUNTY DURNG THE NEXT FEW HOURS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOOgDS 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.
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, 7:46 PM CDT, 4 hours 40 minutes before
TXZ054-170245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 750 PM CDT THU APR 16 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL MIDNIGHT CDT... AT 745 PM CDT RADAR INDICATED THUNDERSTORMS DEVELOPING THROUGHOUT VAL VERDE COUNTY WITH THE STRONGEST BEING NEAR PANDALE...50 NORTHWEST OF DEL RIO AND IN MEXICO 50 MILES WEST OF DEL RIO. THESE STORMS WERE MOVING EAST AT 10 MPH. SMALL HAIL...HEAVY RAIN...STRONG GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING 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 FTHE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Apr 16, 8:05 PM CDT, 4 hours 21 minutes before
TXZ035-036-037-170200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 8 PM CDT THUR APR 16 1992 ...THUNDERSTORMS NORTH AND DISTANT SOUTHWEST OF AUSTIN... AT 755 PM CDT AUSTIN RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAINS AND DANGEROUS LIGHTNING FROM NORTHEAST OF GEORGETOWN TO WEST OF CAMERON. THIESE ARE PART OF A LARGE AREA OF MOSTLY SHOWERS THAT EXTEND FROM CENTRAL WILLIAMSON COUNTY NORTHWARD TO WEST OF WACO. MOVEMENT WAS TOWARJDS THE EAST AT 20 MPH. ANOTHER AREA OF SHOWERS AND THUNDERSTORMS WERE LOCATED FROM WEST OF JOHNSON CITY SOUTHWARD TO SOUTH OF SAN ANTONIO AND HONDO. THIS AREA IS SHOWING LITTLE OR NO MOVEMENT. PJL
Special weather statement, Apr 16, 9:12 PM CDT, 3 hours 14 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, 55 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, 49 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.
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, 2:55 AM CDT | Flash Flood Warning | EWX | Real, Uvalde | 2 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.