Alert archive / Texas / Flash Flood Warnings in 1992
Flash Flood Warning 35, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Apr 16, 1992, 7:44 PM CDT for Medina County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 16, 1992, 7:44 PM CDT (00:44 UTC)
- Expired
- Apr 16, 1992, 11:45 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Medina County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 0.7 hours before the alert went out and 168 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 170047 FFWSAT TXC325-170445- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 744 PM CDT THU APR 16 1992 THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 1145 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTH TEXAS ...NORTHERN MEDINA COUNTY AT 740 PM CDT...WEATHER SERVICE RADARS INDICATED A SEVERE THUNDERSTORM WITH HEAVY RAIN IN NORTHERN MEDINA COUNTY BETWEEN FM 462 AND MEDINA LAKE. LITTLE MOVEMENT HAS BEEN NOTED. RUNOFF FROM THESE RAINS COULD DRAIN INTO HONDO CREEK OR INTO THE MEDINA RIVER AND MEDINA LAKE. 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. AVOID ALREADY FLOODED AREAS. TRAVELERS SHOULD NOT ATTEMPT TO CROSS FLOODED ROADS. IF YOUR VEHICLE STALLS...LEAVE IT AND MOVE IMMEDIATELY TO HIGHER GROUND. 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. 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 MOVgE TO HIGH GROUND IMMEDIATELY. FLOOD PRONE URBAN AREAS FILL WITH WATER QUICKLY. CLOGGED STORM DRAINS MAY CAUSE OTHER AREAS TO FLOOD. DO NOT DRIVE THROUGH FLOOD WATERS AND STAY AWAY FROM STORM DRAINS.
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, 5:01 PM CDT, 2 hours 43 minutes before
TXZ030-034-162200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 501 PM CDT THUR APR 16 1992 ...SEVERE THUNDERSTORM WARNING FOR EASTERN SAN SABA COUNTY HAS EXPIRED... AT 500 PM CDT AUSTIN RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAINS FROM EVANT SOUTHWEST THROUGH LAMPASAS COUNTY TO CHEROKEE AND MASON. THESE THUNDERSTORMS WERE MOVING EASTWARD AT 30 MILES AN HOUR. THESE THUNDERSTORMS WILL LIKELY PRODUCE BRIEF HEAVY RAINS...GUSTY1 WINDS... SMALL HAIL...AND DANGEROUS LIGHTNING. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TV/RADIO FOR THE LATEST WEATHER INFORMATION AND POSSIBLE WARNINGS.
Special weather statement, Apr 16, 5:12 PM CDT, 2 hours 32 minutes before
TXZ039-170000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 510 PM CDT THU APR 16 1992 HONDO RADAR SHOWS SEVERAL SHOWERS AND A FEW THUNDERSTORMS BETWEEN CASTROVILLE AND SAN ANTONIO WITH MOVEMENT TOWARD THE EAST AT 15 MPH TOWARD THE WESTERN SECTIONS OF SAN ANTONIO AND BEXAR COUNTY. SINCE THE ACTIVITY WILL BE AFFECTING RUSH-HOUR TRAFFIC...MOTORISTS SHOULD BE ESPECIALLY AWARE AND REACT ACCORDINGLY. WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST TO OCCUR INTO THE MID AND LATE EVENING HOURS IN AND AROUND SAN ANTONIO AND THE ADJACENT HILL COUNTRY. ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE STAY TUNED.
Special weather statement, Apr 16, 5:28 PM CDT, 2 hours 16 minutes before
TXZ039-170000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 525 PM CDT THU APR 16 1992 ...PEA-SIZED HAIL REPORTED AT SEA WORLD... HONDO RADAR SHOWS SEVERAL SHOWERS AND A FEW THUNDERSTORMS BETWEEN CASTROVILLE AND SAN ANTONIO WITH MOVEMENT TOWARD THE EAST AT 15 MPH TOWARD THE WESTERN SECTIONS OF SAN ANTONIO AND BEXAR COUNTY. DURING THE PAST FEW MINUTES...SEA WORLD OF TEXAS REPORTED PEA-SIZED HAIL FROM THESE STORMS ALONG WITH BRIEF HEAVY RAIN. WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST TO OCCUR INTO THE MID AND LATE EVENING HOURS IN AND AROUND SAN ANTONIO AND THE ADJACENT HILL COUNTRY. ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE STAY TUNED.
Special weather statement, Apr 16, 5:46 PM CDT, 1 hour 58 minutes before
TXZ054-170045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 550 PM CDT THU APR 16 1992 AT 545 PM CDT RADAR INDICATED THUNDERSTORMS 20 MILES NORTH OF DEL RIO. THESE STORMS WERE MOVING TO THE EAST AT 15 MPH. SMALL HAIL...HEAVY RAIN...STRONG GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING ARE POSSIBLE WITH THESE STORMS.
Special weather statement, Apr 16, 5:48 PM CDT, 1 hour 56 minutes before
TXZ054-170045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 550 PM CDT THU APR 16 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL MIDNIGHT CDT... AT 545 PM CDT RADAR INDICATED THUNDERSTORMS 20 MILES NORTH OF DEL RIO. THESE STORMS WERE MOVING TO THE EAST AT 15 MPH. SMALL HAIL...HEAVY RAIN...STRONG GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING ARE POSSIBLE WITH THESE STORMS.
Special weather statement, Apr 16, 6:08 PM CDT, 1 hour 36 minutes before
TXZ039-170100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 605 PM CDT THU APR 16 1992 HONDO RADAR CONTINUES TO SHOW SHOWERS AND A FEW THUNDERSTORMS ON THE WEST SIDE OF SAN ANTONIO WITH MOVEMENT TOWARD THE EAST AT 15 MPH. DURING THE PAST 45 MINUTES...SEA WORLD OF TEXAS REPORTED PEA-SIZED HAIL FROM THESE STORMS ALONG WITH BRIEF HEAVY RAIN. DUE TO THE SLOW MOVEMENT OF THESE SHOWERS...LOCALIZED FLOODING OF LOW- LYING AREAS AND LOW-WATER CROSSINGS MAY OCCUR. LEON CREEK ON THE WEST SIDE OF SAN ANTONIO AND BEXAR COUNTY ALSO COULD BE AFFECTED BY RISING WATER FROM RUNOFF. WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST TO OCCUR INTO THE MID AND LATE EVENING HOURAS IN AND AROUND SAN ANTONIO AND THE ADJACENT HILL COUNTRY. ANOTHER THUNDERSTORM IS INDICATED NEAR LEAKEY IN REAL COUNTY. ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE STAY TUNED.
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 17, 12:26 AM CDT | Flash Flood Warning | EWX | Maverick | 3 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.