Alert archive / Texas / Flash Flood Warnings in 1987

Flash Flood Warning 94, NWS Austin/San Antonio, TX

September 15, 1987Real County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Sep 15, 1987, 5:01 AM CDT for Real County, Texas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Sep 15, 1987, 5:01 AM CDT (10:01 UTC)
Expired
Sep 15, 1987, 9:00 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Real County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 10.0 hours before the alert went out and 111 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 00:00Z on 1987-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3782 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1987-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.193958Sfc1 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
3782 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1412 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
1.2
Supercell composite
12.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 151001
FFWSAT
TXC385-151400-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
501 AM CDT TUE SEP 15 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL  900 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH TEXAS
          ...REAL
 
HEAVY RAIN HAS CONTINUED OVER MOST OF REAL COUNTY FOR THE PAST TWO
HOURS.  REPORTS FROM THE H.E.B. RANCH IN NORTHERN REAL COUNTY
INDICATE RAIN TOTALS OF NEARLY 3 INCHES SINCE 4AM THIS MORNING.
RAINFALL IN AND AROUND THE CITY OF LEAKEY HAS BEEN NEAR 2 INCHES.
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN
REPORTED.
 
REMEMBER...DEATHS DURING FLASH FLOODING ARE FREQUENTLY RELATED TO
MOTORISTS DRIVING INTO FLOODED LOW WATER CROSSINGS OR FROM CHILDREN
PLAYING NEAR FLOODED STREAMS OR DRAINAGE AREAS.

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 14, 11:45 PM CDT, 5 hours 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
1150 PM CDT MON SEP 14 1987

AT 1145 PM A LINE OFTHUNDERSTORMS EXTENDED FROM 10 MILES NORTH OF
DEL RIO TO JUNO. OTHER THUNDERSTORMS WERE LOCATED FROM LANGTRY TO
PANDALE.  MOVEMENT OF THE THUNDERSTORMS WAS NORTHEAST AT 15 MILES AN
HOUR.

STRONG GUSTY WINDS...DANGEROUS LIGHTNING AND BRIEF HEAVY RAIN CAN BE
EXPECTED WITH THESE THUNDERSTORMS.

BOATERS AND FISHERMEN ON THE RIO GRANDE...PECOS RIVERS AND
LAKE AMISTAD SHOULD MONITOR THE WEATHER CLOSELY AND MOVE TO SAFE
HARBOR BEFORE THE THUNDERSTORMS ARRIVE.

STAY TUNED TO YOUR LOCAL RADIO...TV STATION OR NOAA WEATHER RADIO
FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Sep 14, 11:48 PM CDT, 5 hours 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
1150 PM CDT MON SEP 14 1987

AT 1145 PM A LINE OF THUNDERSTORMS EXTENDED FROM 10 MILES NORTH OF
DEL RIO TO JUNO. OTHER THUNDERSTORMS WERE LOCATED FROM LANGTRY TO
PANDALE.  MOVEMENT OF THE THUNDERSTORMS WAS NORTHEAST AT 15 MILES AN
HOUR.

STRONG GUSTY WINDS...DANGEROUS LIGHTNING AND BRIEF HEAVY RAIN CAN BE
EXPECTED WITH THESE THUNDERSTORMS.

BOATERS AND FISHERMEN ON THE RIO GRANDE...PECOS RIVERS AND
LAKE AMISTAD SHOULD MONITOR THE WEATHER CLOSELY AND MOVE TO SAFE
HARBOR BEFORE THE THUNDERSTORMS ARRIVE.

STAY TUNED TO YOUR LOCAL RADIO...TV STATION OR NOAA WEATHER RADIO
FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Sep 15, 1:46 AM CDT, 3 hours 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
145 AM CDT TUE SEP 15 1987

AT 130 AM CDT HONDO RADAR INDICATED VERY HEAVY THUNDERSTORMS PRODUCING
HEAVY RAINFALL EXTENDING FROM JUST SOUTH OF JUNCTION TO NORTHEAST OF
DEL RIO. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 15 MILES
AN HOUR.

FREQUENT LIGHTNING...HEAVY RAINFALL AND GUSTY WINDS CAN BE EXPECTED
WITH THESE THUNDERSTORMS. PERSONS IN THE VICINITY OF THESE STORMS
SHOULD BE ALERT FOR FLOODED LOW WATER CROSSINGS AND LOW LYING AREAS.

STAY TUNED TO YOUR LOCAL RADIO...TV STATION OR NOAA WEATHER RADIO FOR
ADDITIONAL STATEMENTS OR WARNINGS WHICH WILL BE ISSUED AS NEEDED.
Special weather statement, Sep 15, 2:22 AM CDT, 2 hours 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
222 AM CDT TUE SEP 15 1987

SCATTERED THUNDERSTORMS CONTINUED AT 215 AM THIS MORNING OVER MUCH OF
THE TEXAS HILL COUNTRY FROM JUNCTION TO LEAKEY TO BRACKETTVILLE TO DEL
RIO AND OZONA.  HEAVY RAIN WAS INDICATED IN THE ACTIVITY BETWEEN
JUNCTION...LEAKEY AND BRACKETTVILLE.  THE INDIVIDUAL THUNDERSTORMS WERE
MOVING TO THE NORTHEAST AT 15 MILES AN HOUR...WHILE THE GENERAL AREA OF
STORMS WAS DRIFTING SLOWLY EASTWARD.

THE HEAVIEST RAIN HAS OCCURRED SO FAR IN EASTERN EDWARDS AND NORTHERN
REAL COUNTIES.  RAINFALL REPORTS ARE NOT AVAILABLE FROM THIS AREA...
HOWEVER...ESTIMATED TOTALS BASED ON RADAR REPORTS INDICATE ACCUMULATIONS
OF UP TO 2 INCHES ARE POSSIBLE.  THIS WOULD BE SUFFICIENT RAINFALL TO
CAUSE SOME LOW WATER CROSSINGS TO FLOOD BRIEFLY.  MOTORISTS TRAVELING IN
EDWARDS AND REAL COUNTY SHOULD BE ALERT TO THIS POSSIBILITY OF FLOODED
LOW AREAS AND BE READY TO U SE ALTERNATE ROUTES IF NECESSARY.

THESE STORMS HAVE THE POTENTIAL TO PRODUCE VERY GUSTY WINDS AND SMALL
HAIL ALONG WITH THE HEAVY RAIN.  THIS MAY CAUSE ADDITIONAL PROBLEMS FOR
TRAVELERS.
Special weather statement, Sep 15, 3:14 AM CDT, 1 hour 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
314 AM CDT TUE SEP 15 1987

SCATTERED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...CONTINUED EARLY
THIS MORNING IN AN AREA FROM JUNTION TO BRACKETTVILLE TO DEL RIO TO
OZONA.  THE HEAVIEST RAIN WAS FALLING OVER REAL COUNTY...FROM LEAKEY TO
NEAR CAMP WOOD.  THE THUNDERSTORMS WERE MOVING TO THE EAST NORTHEAST AT
15 MILES AN HOUR.

MOTORISTS TRAVELING ACROSS EDWARDS AND REAL` COUNTIES ARE URGED TO KEEP
ALERT TO THE POSSIBILITY OF BRIEF FLOODING OF LOW AREAS IN AND NEAR THE
MORE INTENSE THUNDERSTORMS.
Special weather statement, Sep 15, 4:20 AM CDT, 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
420 AM CDT TUE SEP 15 1987

AT 415 AM THIS MORNING...SCATTERED THUNDERSTORMS CONTINUED ACROSS THE
TEXAS HILL COUNTRY AND EDWARDS PLATEAU FROM JUNCTION TO LEAKEY TO
BRACKETTVILLE TO SONORA.  THE THUNDERSTORMS WERE MOVING SLOWLY TO THE
EAST NORTHEAST.

THE HEAVIEST RAIN AT 415 AM THIS MORNING WAS FALLING OVER SOUTHERN REAL
COUNTY...BETWEEN LEAKEY AND CAMP WOOD.  IN ADDITION TO HEAVY RAIN...
THESE STORMS ARE ALSO PRODUCING VERY FREQUENT AND VERY DANGEROUS
LIGHTNING.

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 15, 6:00 PM CDTSevere Thunderstorm WarningEWXWilliamson35 min

Nearby

Flash Flood Warnings in Texas, 1987Every flash flood warning in 1987

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.