Alert archive / Texas / Flash Flood Warnings in 1993
Flash Flood Warning 9, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 10, 1993, 1:45 AM CDT for Webb County, Texas. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- May 10, 1993, 1:45 AM CDT (06:45 UTC)
- Expired
- May 10, 1993, 7:45 AM CDT
- In force
- 6 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 00:00Z, 6.8 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
- 2966 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 100652 FFWSAT TXC479-101245- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 145 AM CDT MON MAY 10 1993 THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 745 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTH TEXAS ...SOUTHERN WEBB COUNTY...INCLUDING THE LAREDO METROPOLITAN AREA... AT 145 AM CDT...THE LAREDO DPS REPORTED HEAVY RAIN AND FLOODING WAS CONTINUING IN AND AROUND THE LAREDO METROPOLITAN AREA. UNOFFICIAL REPORTS BETWEEN 3 AND 5 INCHES OF RAIN HAVE BEEN RECEIVED. WEATHER SERVICE RADARS INDICATE A LINE OF THUNDERSTORMS FROM WEST OF LAREDO TO ALICE AND CORPUS CHRISTI. MOVEMENT WAS TOWARD THE SOUTHEAST AT 30 MPH. SEVERAL MORE HOURS OF RAIN CAN BE EXPECTED IN AND AROUND LAREDO AND SOUTHERN WEBB COUNTY. FLOODING OF URBAN AREAS...STREETS AND HIGHWAYS... AND CREEKS AND LOW-WATER CROSSINGS CAN BE EXPECTED UNTIL AROUND DAYBREAK OR SHORTLY AFTER. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WEBB COUNTY AND EXTREME SOUTH TEXAS UNTIL 7 AM CDT. 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. FLOOD PRONE URBAN AREAS FILL WITH WATER QUICKLY. CLOGGED STORM DRAINS MAY CAUSE OTHER AREAS TO FLOOD. DO NOT DRIVE THROUGH FLOOD WAThERS 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
Local storm report, May 9, 9:43 PM CDT, 4 hours 2 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
943 PM CDT SUN MAY 09 1993
FOR MAY 9TH...
TIME EVENT
730 PM CDT 3/4-INCH HAIL AT SATTLER IN NORTHEAST COMAL COUNTY.
BETWEEN HONDO AND CASTROVILLE IN MEDINA COUNTY.
745 PM CDT PILOT REPORT RELAYED TO SAN ANGELO FLIGHT SERVICE
STATION...TWO TORNADOES SEEN...ONE BETWEEN SAN
MARCOS AND NEW BRAUNFELS NEAR COMAL/GUADALUPE
COUNTY LINE AND ONE OVER THE CANYON LAKE AREA
IN NORTHERN COMAL COUNTY.
900 PM CDT GONZALES COUNTY SHERIFF REPORTED 3/4" HAIL IN TOWN
OF GONZALESLocal storm report, May 9, 9:45 PM CDT, 4 hours before
STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
943 PM CDT SUN MAY 09 1993
FOR MAY 9TH...
TIME EVENT
730 PM CDT 3/4-INCH HAIL AT SATTLER IN NORTHEAST COMAL COUNTY.
BETWEEN HONDO AND CASTROVILLE IN MEDINA COUNTY.
745 PM CDT PILOT REPORT RELAYED TO SAN ANGELO FLIGHT SERVICE
STATION...TWO TORNADOES SEEN...ONE BETWEEN SAN
MARCOS AND NEW BRAUNFELS FNEAR COMAL/GUADALUPE
COUNTY LINE AND ONE OVER THE CANYON LAKE AREA
IN NORTHERN COMAL COUNTY.
900 PM CDT GONZALES COUNTY SHERIFF REPORTED 3/4" HAIL IN TOWN
OF GONZALESLocal storm report, May 9, 11:18 PM CDT, 2 hours 27 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN TX
1130 PM CDT SUN MAY 09 1993
TIME COUNTY EVENT OF MAY 9TH...1993
200 PM LAMPASAS QUARTER SIZE HAIL OVER NORTHCENTRAL LAMPASAS COUNTY
(WEATHER WATCHER)
205 PM MILLS 3/4 INCH HAIL AT GOLDTHWAITE...RELAYED BY DPS
LAMPASAS.
306 PM LLANO LAKE BUCHANAN...1/2 INCH HAIL.
440 PM GILLESPIE PEA SIZE HAIL COVERED THE GROUND WEST OF STONEWALL.
444 PM BLANCO 11/2 INCH HAIL VCNTY OF RR 2721 AND HWY 290.
515 PM TRAVIS EST. WIND GUST TO 65 MPH AT MANOR. (HAMS)
519 PM HAYS SHERIFFS OFC...MARBLE SIZE HAIL AT 217 MILE MARKER
ON IH35. FUNNEL CLOUD AT KYLE.
534 PM BLANCO 11/2 INCH HAIL AT JOHNSON CITY. (HAMS)
656 PM HAYS 1/2-3/4 INCH HAIL BY WEATHER WATCHER AT BUDA.
709 PM COMAL POSSIBLE TORNADO TOUCHDOWN AT FISHER JUST OVER
THE COMAL COUNTY LINE. NOTE: WSFO SAT... (HAMS)
710 PM HAYS 4 MILES NORTHWEST OF SAN MARCOS...MARBLE SIZE HAIL.
(HAYS CO. SHERIFFS OFC)
715 PM HAYS 1 INCH HAIL AT SETTLEMENT SUBDIVISION ALONG RR 12,
WEST OF SAN MARCOS (PUBLIC)
722 PM HAYS GOLFBALL HAIL AT DEERWOOD SUBDIVISION, NEAR FACTORY
OUTLET MALL ON IH35, JUST SOUTH OF SAN MARCOS.
(SAN MARCOS POLICE DEPART.)
725 PM HAYS JELLY BEAN HAIL ALONG IH35 AT HAYS/COMAL COUNTY
LINE. (PUBLIC)
DUGANLocal storm report, May 9, 11:30 PM CDT, 2 hours 15 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN TX
1130 PM CDT SUN MAY 09 1993
TIME COUNTY EVENT OF MAY 9TH...1993
200 PM LAMPASAS QUARTER SIZE HAIL OVER NORTHCENTRAL LAMPASAS COUNTY
(WEATHER WATCHER)
205 PM MILLS 3/4 INCH HAIL AT GOLDTHWAITE...RELAYED BY DPS
LAMPASAS.
306 PM LLANO LAKE BUCHANAN...1/2 INCH HAIL.
440 PM GILLESPIE PEA SIZE HAIL COVERED THE GROUND WEST OF STONEWALL.
444 PM BLANCO 11/2 INCH HAIL VCNTY OF RR 2721 AND HWY 290.
515 PM TRAVIS EST. WIND GUST TO 65 MPH AT MANOR. (HAMS)
519 PM HAYS SHERIFFS OFC...MARBLE SIZE HAIL AT 217 MILE MARKER
ON IH35. FUNNEL CLOUD AT KYLE.
534 PM BLANCO 11/2 INCH HAIL AT JOHNSON CITY. (HAMS)
656 PM HAYS 1/2-3/4 INCH HAIL BY WEATHER WATCHER AT BUDA.
709 PM COMAL POSSIBLE TORNADO TOUCHDOWN AT FISHER JUST OVER
THE COMAL COUNTY LINE. NOTE: WSFO SAT... (HAMS)
710 PM HAYS 4 MILES NORTHWEST OF SAN MARCOS...MARBLE SIZE HAIL.
(HAYS CO. SHERIFFS OFC)
715 PM HAYS 1 INCH HAIL AT SETTLEMENT SUBDIVISION ALONG RR 12,
WEST OF SAN MARCOS (PUBLIC)
722 PM HAYS GOLFBALL HAIL AT DEERWOOD SUBDIVISION, NEAR FACTORY
OUTLET MALL ON IH35, JUST SOUTH OF SAN MARCOS.
(SAN MARCOS POLICE DEPART.)
725 PM HAYS JELLY BEAN HAIL ALONG IH35 AT HAYS/COMAL COUNTY
LINE. (PUBLIC)
DUGANSpecial weather statement, May 9, 11:49 PM CDT, 1 hour 56 minutes before
TXZ038-041-100600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1149 PM CDT SUN MAY 9 1993 HONDO RADAR INDICATED STRONG THUNDERSTORM PRODUCING VERY HEAVY RAIN EXTENDING FROM CARRIZO SPRINGS EASTWARD TO NEAR COTULLA AND TILDEN. THESE THUNDERSTROMS WERE MOVING TO THE SOUTHEAST AT 25 MILES AN HOUR. THUNDERSTORMS WERE ALSO INDICATED ALONG THE RIO GRANDE RIVER NORTHWEST OF LAREDO MOVING SOUTHEAST AT 15 MILES AN HOUR. AT THIS RATE OF SPEED THESE STORMS COULD AFFECT THE LAREDO AREA SHORTLY AFTER MIDNIGHT. BRIEF HEAVY RAIN...FREQUENT LIGHTNING...GUSTY WINDS AND SMALL HAIL CAN BE EXPECTED WITH THESE THUNDERSTORMS.
Special weather statement, May 9, 11:49 PM CDT, 1 hour 56 minutes before
TXZ038-041-100600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1149 PM CDT SUN MAY 9 1993 HONDO RADAR INDICATED STRONG THUNDERSTORM PRODUCING VERY HEAVY RAIN EXTENDING FROM CARRIZO SPRINGS EASTWARD TO NEAR COTULLA AND TILDEN. THESE THUNDERSTROMS WERE MOVING TO THE SOUTHEAST AT 25 MILES AN HOUR. THUNDERSTORMS WERE ALSO INDICATED ALONG THE RIO GRANDE RIVER NORTHWEST OF LAREDO MOVING SOUTHEAST AT 15 MILES AN HOUR. AT THIS RATE OF SPEED THESE STORMS COULD AFFECT THE LAREDO AREA SHORTLY AFTER MIDNIGHT. BRIEF HEAVY RAIN...FREQUENT LIGHTNING...GUSTY WINDS AND SMALL HAIL CAN BE EXPECTED WITH THESE THUNDERSTORMS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:02 PM CDT | Tornado Warning | EWX | Comal | 43 min |
| May 9, 7:08 PM CDT | Tornado Warning | EWX | Guadalupe | 67 min |
| May 9, 7:18 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell | 57 min |
| May 9, 7:43 PM CDT | Severe Thunderstorm Warning | EWX | Comal | 62 min |
| May 9, 8:09 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 66 min |
| May 9, 8:38 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 67 min |
| May 9, 8:45 PM CDT | Severe Thunderstorm Warning | EWX | Lavaca | 60 min |
| May 9, 9:05 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt | 40 min |
| May 9, 9:25 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa | 65 min |
| May 9, 10:14 PM CDT | Severe Thunderstorm Warning | EWX | Karnes | 61 min |
| May 10, 12:32 AM CDT | Tornado Warning | EWX | Webb | 58 min |
| May 10, 12:43 AM CDT | Severe Thunderstorm Warning | EWX | Jackson | 62 min |
Nearby
Flash Flood Warnings in Texas, 1993Every flash flood warning in 1993
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.