Alert archive / Texas / Flash Flood Warnings in 1993

Flash Flood Warning 7, NWS Brownsville, TX

September 7, 1993Starr County, Texas

NWS Brownsville, TX issued this flash flood warning at Sep 7, 1993, 12:45 AM CDT for Starr County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Sep 7, 1993, 12:45 AM CDT (05:45 UTC)
Expired
Sep 7, 1993, 3:45 AM CDT
In force
3 hr
Issued by
NWS Brownsville, TX
Area
Whole counties

County Starr County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 5.8 hours before the alert went out and 190 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.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 00:00Z on 1993-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2313 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 1993-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2313 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
819 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBRO 070549
FFWBRO
TXC427-070845-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1245 AM CDT TUE SEP 7 1993
 
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  345 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTH TEXAS
 
   ...SOUTHERN STARR COUNTY
 
VERY HEAVY RAINFALL FROM MONDAY EVENING HAS RESULTED IN SIGNIFICANT
FLOODING IN ROMA.  CANAL...GARCIA...AND GLADIATOR STREETS ARE UNDER
WATER.
 
ATLTHOUGH NO RAIN IS FALLING AT THIS TIME...RESIDENTS SHOULD BE AWARE OF
STANDING WATER THAT MAY BE DEEPER THAN IT APPEARS.  THE ROMA POLICE
DEPARTMENT INDICATES THAT EVACUATIONS ARE BEING MADE FOR RESIDENTS IN
ROMA AT THIS TIME.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.
 
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A
SMALL ONE...ON FOOT.
 
 
 
h&

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, Sep 6, 8:00 PM CDT, 4 hours 45 minutes before
TXZ041>044-514-070200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
800 PM CDT MON SEP 6 1993

*** LINE OF STRONG THUNDERSTORMS AFFECTING THE UPPER VALLEY OF SOUTH
TEXAS ***

AT 730 PM...A LINE OF STRONG THUNDERSTORMS CONTAINING VERY HEAVY RAIN WAS
OVER SOUTH TEXAS FROM ROMA TO JUST NORTH OF MCCOOK EXTENDING INTO SOUTHERN
BROOKS COUNTY. THE LINE WAS MOVING SLOWLY TO THE SOUTHEAST NEAR 5 MILES
AN HOUR. A LARGE AREA OF RAIN AND SHOWERS COVERED MOST OF SOUTH TEXAS
FROM RIO GRANDE CITY TO CORPUS CHRISTI AND OVER TO LAREDO.

THESE THUNDERSTORMS WILL PRODUCE FREQUENT DANGEROUS LIGHTNING AND PERIODS
OF VERY HEAVY RAIN.  SINCE THESE STORMS ARE SLOW MOVING...FLOODING MAY
OCCUR IN LOW LYING AREAS.

ISOLATED SHOWERS WERE OVER THE GULF FROM 70 TO BEYOND 140 MILES EAST AND
NORTHEAST OF PORT ISABEL. LITTLE MOVEMENT WAS NOTED.

SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH VERY HEAVY RAIN WERE
OVER NORTHEAST MEXICO FROM SOUTH OF FALCON LAKE TO NEAR MONTERREY...AND
ALSO FROM 75 TO TO 140 MILES SOUTHWEST OF BROWNSVILLE. MOVEMENT WAS TO
SOUTHEAST NEAR 5 MILES AN HOUR.
Special weather statement, Sep 6, 8:00 PM CDT, 4 hours 45 minutes before
TXZ041>044-514-070200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
800 PM CDT MON SEP 6 1993

*** LINE OF STRONG THUNDERSTORMS AFFECTING THE UPPER VALLEY OF SOUTH
TEXAS ***

AT 730 PM...A LINE OF STRONG THUNDERSTORMS CONTAINING VERY HEAVY RAIN WAS
OVER SOUTH TEXAS FROM ROMA TO JUST NORTH OF MCCOOK EXTENDING INTO SOUTHERN
BROOKS COUNTY. THE LINE WAS MOVING SLOWLY TO THE SOUTHEAST NEAR 5 MILES
AN HOUR. A LARGE AREA OF RAIN AND SHOWERS COVERED MOST OF SOUTH TEXAS
FROM RIO GRANDE CITY TO CORPUS CHRISTI AND OVER TO LAREDO.

THESE THUNDERSTORMS WILL PRODUCE FREQUENT DANGEROUS LIGHTNING AND PERIODS
OF VERY HEAVY RAIN.  SINCE THESE STORMS ARE SLOW MOVING...FLOODING MAY
OCCUR IN LOW LYING AREAS.

ISOLATED SHOWERS WERE OVER THE GULF FROM 70 TO BEYOND 140 MILES EAST AND
NORTHEAST OF PORT ISABEL. LITTLE MOVEMENT WAS NOTED.

SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH VERY HEAVY RAIN WERE
OVER NORTHEAST MEXICO FROM SOUTH OF FALCON LAKE TO NEAR MONTERREY...AND
ALSO FROM 75 TO TO 140 MILES SOUTHWEST OF BROWNSVILLE. MOVEMENT WAS TO
SOUTHEAST NEAR 5 MILES AN HOUR.
Special weather statement, Sep 6, 8:57 PM CDT, 3 hours 48 minutes before
TXZ041>044-514-070300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
900 PM CDT MON SEP 6 1993

...AREA OF STRONG THUNDERSTORMS CONTINUES OVER PARTS OF SOUTH TEXAS...

AT 830 PM...AN AREA OF STRONG THUNDERSTORMS CONTAINING VERY HEAVY RAIN WAS
OVER SOUTH TEXAS AND NORTHEAST MEXICO FROM RIO GRANDE CITY TO MCCOOK TO
MONTERREY TO 20 MILES WEST OF FALCON DAM. MOVEMENT WAS TO THE SOUTHEAST
NEAR 10 MILES AN HOUR.

THESE THUNDERSTORMS WILL PRODUCE FREQUENT DANGEROUS LIGHTNING AND PERIODS
OF VERY HEAVY RAIN. SINCE THESE STORMS ARE SLOW MOVING...FLOODING MAY
OCCUR IN LOW LYING AREAS. BRIEF STRONG AND GUSTY WINDS ARE ALSO POSSIBLE.

ISOLATED SHOWERS WERE OVER THPE GULF FROM 50 TO 80 MILES EAST AND NORTHEAST
OF PORT ISABEL. LITTLE MOVEMENT WAS NOTED.
Special weather statement, Sep 6, 9:00 PM CDT, 3 hours 45 minutes before
TXZ041>044-514-070300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
900 PM CDT MON SEP 6 1993

...AREA OF STRONG THUNDERSTORMS CONTINUES OVER PARTS OF SOUTH TEXAS...

AT 830 PM...AN AREA OF STRONG THUNDERSTORMS CONTAINING VERY HEAVY RAIN WAS
OVER SOUTH TEXAS AND NORTHEAST MEXICO FROM RIO GRANDE CITY TO MCCOOK TO
MONTERREY TO 20 MILES WEST OF FALCON DAM. MOVEMENT WAS TO THE SOUTHEAST
NEAR 10 MILES AN HOUR.

THESE THUNDERSTORMS WILL PRODUCE FREQUENT DANGEROUS LIGHTNING AND PERIODS
OF VERY HEAVY RAIN. SINCE THESE STORMS ARE SLOW MOVING...FLOODING MAY
OCCUR IN LOW LYING AREAS. BRIEF STRONG AND GUSTY WINDS ARE ALSO POSSIBLE.

ISOLATED SHOWERS WERE OVER THE GULF FROM 50 TO 80 MILES EAST AND NORTHEAST
OF PORT ISABEL. LITTLE MOVEMENT WAS NOTED.
Special weather statement, Sep 6, 9:44 PM CDT, 3 hours 1 minute before
TXZ041>044-514-0704300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
945 PM CDT MON SEP 6 1993

...AREA OF STRONG THUNDERSTORMS MOVES SOUTH OF THE RIVER...

THUNDERSTORMS HAD MOVED OVER MEXICO FROM TEXAS THIS LAST HOUR.  THE
THUNDERSTORM 12 MILES SOUTH OF RIO GRANDE CITY WAS THE CLOSEST ONE TO
SOUTH TEXAS.  OTHER THUNDERSTORMS WERE BETWEEN THAT AND MONTERREY.

THIS LAST HOUR ROMA REPORTED THAT THEY HAD 3 INC(HES OF RAINFALL FOR THE
AFTERNOON.

AT 925 PM RAIN WAS OVER SOUTH TEXAS BETWEEN RIO GRANDE CITY AND ZAPATA
AND EXTENDED NORTHEAST TOWARD THE HEBBRONVILLE.. ALICE.. AND BAFFIN
BAY AREA.

MOVEMENTS WERE SOUTHWEST AT 10 MILES AND HOUR.
Special weather statement, Sep 6, 9:45 PM CDT, 3 hours before
TXZ041>044-514-0704300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
945 PM CDT MON SEP 6 1993

...AREA OF STRONG THUNDERSTORMS MOVES SOUTH OF THE RIVER...

THUNDERSTORMS HAD MOVED OVER MEXICO FROM TEXAS THIS LAST HOUR.  THE
THUNDERSTORM 12 MILES SOUTH OF RIO GRANDE CITY WAS THE CLOSEST ONE TO
SOUTH TEXAS.  OTHER THUNDERSTORMS WERE BETWEEN THAT AND MONTERREY.

THIS LAST HOUR ROMA REPORTED THAT THEY HAD 3 INCHES OF RAINFALL FOR THE
AFTERNOON.

AT 925 PM RAIN WAS OVER SOUTH TEXAS BETWEEN RIO GRANDE CITY AND ZAPATA
AND EXTENDED NORTHEAST TOWARD THE HEBBRONVILLE.. ALICE.. AND BAFFIN
BAY AREA.

MOVEMENTS WERE SOUTHWEST AT 10 MILES AND HOUR.

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.