Alert archive / Texas / Flash Flood Warnings in 1992

Flash Flood Warning 21, NWS Amarillo, TX

August 30, 1992Castro County, Texas

NWS Amarillo, TX issued this flash flood warning at Aug 30, 1992, 8:54 PM CDT for Castro County, Texas. It was in force for 81 min.

The area

The counties it named.

The facts

Issued
Aug 30, 1992, 8:54 PM CDT (01:54 UTC)
Expired
Aug 30, 1992, 10:15 PM CDT
In force
81 min
Issued by
NWS Amarillo, TX
Area
Whole counties

County Castro County, TX

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.9 hours before the alert went out and 93 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, Amarillo Airport, TX at 00:00Z on 1992-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 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, Amarillo Airport, TX at 00:00Z on 1992-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
17 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
1529 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
221 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAMA 310159
FFWAMA
TXC069-310400-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
854 PM CDT SUN AUG 30 1992
 
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
FLASH FLOOD WARNING   EFFECTIVE UNTIL 1100 PM CDT
FOR THE PEOPLE IN THE FOLLOWING LOCATIONS
 
IN THE TEXAS PANHANDLE
 
   ...CASTRO COUNTY
 
THE CASTRO COUNTY SHERIFFS OFFICE REPORTS FLOODING OF STREETS IN
DIMMITT. RADAR ESTIMATES OF RAIN SHOW THREE INCHES OR MORE OF RAIN
HAVE LIKELY FALLEN IN THE NORTHERN HALF OF CASTRO COUNTY.
 
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 Amarillo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 30, 7:22 PM CDTSevere Thunderstorm WarningAMACastro, Deaf Smith53 min
Aug 30, 8:19 PM CDTSevere Thunderstorm WarningAMACastro56 min

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.