Alert archive / Texas / Flash Flood Warnings in 2000

Flash Flood Warning 70, NWS San Angelo, TX

November 5, 2000Mason County, Texas

NWS San Angelo, TX issued this flash flood warning at Nov 5, 2000, 7:21 PM CST for Mason County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Nov 5, 2000, 7:21 PM CST (01:21 UTC)
Expired
Nov 5, 2000, 10:15 PM CST
In force
3 hr
Issued by
NWS San Angelo, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Mason County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 1.4 hours before the alert went out and 224 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 2000-11-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2000-11-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -303 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1654 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-303 m²/s²
0-3 km storm-relative helicity
-83 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 
WGUS54 KSJT 060122
FFWSJT
TXC319-060415-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
721 PM CST SUN NOV 5 2000

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MASON COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 1015 PM CST

* AT 712 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
  RAIN OVER CENTRAL AND EASTERN MASON COUNTY...OR ABOUT 5 MILES EAST 
  OF MASON... MOVING NORTHEAST AT 10 MPH.

* RAINFALL TOTALING 1 TO 3 INCHES HAS FALLEN ACROSS MASON COUNTY     
  SINCE 5 PM...WITH ADDITIONAL RAINFALL UP 1 TO 2 INCHES EXPECTED    
  THROUGH 1015 PM CST.

DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THE WATER DEPTH
MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. DO NOT ATTEMPT TO
DRIVE AROUND BARRICADES. MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES.

LAT...LON 3076 9927 3063 9912 3070 9900 3089 9908

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.

NWS San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at Nov 5, 6:14 PM CST, 1 hour 7 minutes earlier.

Area forecast discussion, Nov 5, 6:14 PM CST, 1 hour 7 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
614 PM CST SUN NOV 5 2000

MAIN LINE OF STORMS PASSING OUT OF THE EASTERN TIP OF SAN SABA COUNTY
AT THIS POINT...TAKING THE THREAT OF TORNADOES WITH IT. PER WWAMKC...
WILL GO AHEAD AND DROP THE TORNADO WATCH FOR THE SOUTHEAST ZONES.

DRYLINE STILL OUT TO THE WEST...DRAPED FROM NEAR CHILDRESS TO WEST OF
MIDLAND. ALTHOUGH UPPER DYNAMICS ARE PUSHING EAST...STILL SOME CHANCE
OF RAIN AS A COLD FRONT OVERTAKES THE DRYLINE AND PUSHES THROUGH THE
AREA BY MIDNIGHT. WILL CONTINUE WITH SOME CHANCE OF RAIN FOR THE
EVENING. GIVEN THAT THE GROUND IS COMPLETELY SATURATED...WILL ALSO HOLD
ONTO THE FLASH FLOOD WATCH FOR A FEW MORE HOURS.

.SJT...FLASH FLOOD WATCH FOR WEST CENTRAL TEXAS THROUGH TONIGHT.

07

In the hours before

Special weather statement, Nov 5, 2:29 PM CST, 4 hours 52 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-052330-

WEST CENTRAL TEXAS THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
229 PM CST SUN NOV 5 2000

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER WEST CENTRAL
TEXAS THIS AFTERNOON AND EVENING...

AN UPPER LEVEL STORM SYSTEM AND AN ASSOCIATED PACIFIC COLD FRONT WILL
MOVE EASTWARD ACROSS WEST CENTRAL TEXAS THIS EVENING. AS THIS SYSTEM
ENCOUNTERS A MOIST AND UNSTABLE AIRMASS WHICH IS IN PLACE...SCATTERED
THUNDERSTORMS ACROSS ALL OF WEST CENTRAL TEXAS ARE EXPECTED. ENOUGH
INSTABILITY AND LOW TO MID LEVEL WIND SHEAR WILL EXIST SO THAT A FEW
OF THE STORMS COULD REACH SEVERE LIMITS WITH LARGE HAIL...DAMAGING
WINDS AND ISOLATED TORNADOES ALL BEING POSSIBLE.

IN ADDITION TO THE SEVERE WEATHER THREAT...GIVEN THE DEGREE OF SOIL
SATURATION...THE POTENTIAL FOR FLASH FLOODING WILL ALSO EXIST AREA
WIDE. THUNDERSTORM ACTIVITY SHOULD COME TO AN END FROM WEST TO EAST
AROUND MIDNIGHT.

SPOTTER ACTIVATION MAY BE REQUIRED..

THIS OUTLOOK WILL RESUME SCHEDULED ISSUANCE ON MARCH 15 2001.
HOWEVER... THIS OUTLOOK WILL CONTINUE TO BE ISSUED AS NEEDED WHEN
THUNDERSTORMS THREATEN WEST CENTRAL TEXAS.

21

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 5, 7:34 PM CSTFlash Flood WarningSJTSan Saba3 hr

Nearby

Flash Flood Warnings in Texas, 2000Every flash flood warning in 2000

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.