Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 34, NWS Austin/San Antonio, TX

July 17, 1990Calhoun County, Victoria County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 17, 1990, 2:08 PM CDT for Calhoun County, Victoria County, Texas. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jul 17, 1990, 2:08 PM CDT (19:08 UTC)
Expired
Jul 17, 1990, 4:15 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Calhoun County, TX, Victoria 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

Corpus Christi, TX (KCRP), launched 12:00Z, 7.1 hours before the alert went out and 112 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 12:00Z on 1990-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2182 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, Corpus Christi, TX at 12:00Z on 1990-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
2182 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
689 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KVCT 171912
FFWVCT
TXC057-469-172115-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE VICTORIA TX
208 PM CDT TUE JUL 17 1990
 
THE NATIONAL WEATHER SERVICE IN VICTORIA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  415 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...CALHOUN COUNTY...SOUTHERN VICTORIA COUNTY
 
...FLOODING OF LOW WATER CROSSINGS AND SMALL CREEKS IN CALHOUN
AND SOUTHERN VICTORIA COUNTIES...
 
TEXAS DEPARTMENT OF PUBLIC SAFETY REPORTS HIGHWAYS HAVE LITTLE
OR NO CHANGE IN STATUS DURING THE PAST TWO HOURS.
 
HIGHWAY 185 AT CRESENT VALLEY IS NOW CLOSED.
 
THE TEXAS HIGHWAY DEPARTMENT REPORTS FARM TO MARKET ROADS CLOSED.
AT FM2615 EAST OF SH87 AT LONE TREE CREEK IS CLOSED.
AT FM1686 SOUTH OF US59 AT LONE TREE CREEK IS CLOSED.
WATER ABOUT 3 INCHES DEEP OVER US87 AT KAMEY NORTH OF PORT LAVACA.
 
FM1685 THE LOWER MISSION VALLEY ROAD IS NOW OPEN.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 8:18 PM CDTFlash Flood WarningEWXVictoria3 hr
Jul 17, 3:25 AM CDTFlash Flood WarningEWXMcMullen3 hr
Jul 17, 3:43 AM CDTFlash Flood WarningEWXKarnes3 hr
Jul 17, 6:22 AM CDTFlash Flood WarningEWXAtascosa3 hr

Nearby

Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990

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.