Alert archive / Texas / Flash Flood Warnings in 1992

Flash Flood Warning 66, NWS Austin/San Antonio, TX

May 23, 1992Val Verde County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 23, 1992, 5:15 PM CDT for Val Verde County, Texas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
May 23, 1992, 5:15 PM CDT (22:15 UTC)
Expired
May 23, 1992, 9:00 PM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Val Verde County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 10.3 hours before the alert went out and 66 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, Del Rio, TX at 12:00Z on 1992-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 624 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, Del Rio, TX at 12:00Z on 1992-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 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
624 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
647 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDRT 232216
FFWDRT
TXC465-240200-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DEL RIO TX
515 PM CDT SAT MAY 23 1992

THE NATIONAL WEATHER SERVICE IN DEL RIO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  900 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...

IN SOUTH CENTRAL TEXAS

   ...VAL VERDE COUNTY

AT 510 PM CDT A LARGE AREA OF SHOWERS AND THUNDERSTORMS WITH 
HEAVY RAIN CONTINUED OVER ALL BUT THE SOUTHEASTERN QUARTER OF VAL VERDE
COUNTY.

RAINFALL HAS VARIED ACROSS VAL VERDE COUNTY WITH NEAR THREE INCHES OF
RAIN REPORTED NEAR PANDALE...68 MILES NORTHWEST OF DEL RIO.

FISHERMEN IN VAL VERDE COUNTY SHOULD BE ALERT FOR DANGEROUS LIGHTNING
AND BRIEF GUSTY WINDS NEAR THUNDERSTORMS AND BE READY TO SEEK SHELTER.

MOTORISTS SHOULD BE ALERT FOR SUDDEN DOWNPOURS OF RAIN THAT COULD FLOOD
LOW WATER CROSSINGS.

PERSONS SHOULD STAY TUNED TO THE NOAA WEATHER RADIO...TV AND LOCAL
COMMERICAL RADIO FOR THE LATEST STATEMENTS OR WARNINGS.

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, May 23, 3:31 PM CDT, 1 hour 44 minutes before
TXZ054-232230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
335 PM CDT SAT MAY 23 1992

AT 330 PM CDT RADAR INDICATED AN AREA OF INTENSE THUNDERSTORM
THROUGHOUT THE WESTERN THIRD OF VAL VERDE COUNTY. MOVEMENT WAS
NORTHEAST AT 10 MILES AN HOUR.

SMALL HAIL...HEAVY RAIN...FREQENT DANGEROUS LIGHTNING AND STRONG GUSTY
WINDS ARE POSSIBLE WITH THESE STORMS

BOATERS AND FISHERMEN NEAR THE PECOS AND RIO GRANDE RIVERS SHOULD
SHOULD SEEK SAFE HARBOR. CAMPERS SHOULD MOVE TO HIGHER GROUND.

RESIDENTS ALONG THE PECOS RIVER WATERSHED SHOULD CONTINUE TO MONITOR
THESE STORMS. THE GROUND IS SATURATED FROM PAST RAINS AND ANY RAIN
THAT FALLS WILL QUICKLY RUN OFF.

STAY TUNED TO LOCAL NOAA WEATHER RADIO...TV OR RADIO STATIONS FOR
FURTHER STATEMENTS OR WARNINGS.
Special weather statement, May 23, 4:33 PM CDT, 42 minutes before
TXZ054-232230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
435 PM CDT SAT MAY 23 1992

AT 430 PM CDT RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORM SOME
WITH VERY HEAVY RAIN FROM NEAR COMSTOCK AND JUNO WEST TO NEAR THE
COUNTY LINE. SEVERAL RANCHERS HAVE REPORTED VERY HEAVY RAIN IN WESTERN
VAL VERDE COUNTY WITH LAGRAND RANCH REPORTING 2.15 INCHES IN A HALF
HOUR. MOVEMENT WAS NORTHEAST AT 20 MILES AN HOUR.

SMALL HAIL...HEAVY RAIN...FREQENT DANGEROUS LIGHTNING AND STRONG GUSTY
WINDS ARE POSSIBLE WITH THESE STORMS

BOATERS AND FISHERMEN IN VAL VERDE COUNTY SHOULD SHOULD SEEK SAFE
HARBOR. CAMPERS SHOULD MOVE TO HIGHER GROUND.

RESIDENTS ALONG THE PECOS RIVER AND DEVILS RIVER WATERSHEDS SHOULD
CONTINUE TO MONITOR THESE STORMS. THE GROUND IS SATURATED FROM PAST
RAINS AND ANY RAIN THAT FALLS WILL QUICKLY RUN OFF.

MOTORIST SHOULD AVOID ENTERING WATER OF UNKNOWN DEPTHS AND NOT TRY TO
CROSS LOW WATER CROSSINGS WHEN THE WATER IS RUNNING FAST.

STAY TUNED TO LOCAL NOAA WEATHER RADIO...TV OR RADIO STATIONS FOR
FURTHER STATEMENTS OR WARNINGS.

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.