Alert archive / Texas / Flash Flood Warnings in 2000

Flash Flood Warning 21, NWS Austin/San Antonio, TX

June 10, 2000Guadalupe County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 10, 2000, 5:55 PM CDT for Guadalupe 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
Jun 10, 2000, 5:55 PM CDT (22:55 UTC)
Expired
Jun 10, 2000, 9:00 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Guadalupe County, TX

The radar

The Austin/San Antonio radar (KEWX), 12 km from the middle of the area, began a volume at 22:58 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 10.9 hours before the alert went out and 219 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 2000-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1912 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 2000-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
1912 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
598 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
58 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 KEWX 102256
FFWEWX
TXC187-110200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
555 PM CDT SAT JUN 10 2000

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GUADALUPE COUNTY

* UNTIL 900 PM CDT

* AT 555 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
MOVING NORTH ACROSS SOUTHERN GUADALUPE COUNTY.  THIS ADDED TO
PREVIOUS RAINS WILL FLOOD LOW WATER CROSSINGS AND SMALL STREAMS.

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 aQUICKLY.
MOVE TO HIGHER GROUND.


LAT...LON 2971 9795 2956 9780 2954 9803

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 7:30 PM CDTFlash Flood WarningEWXBastrop, Caldwell, Comal, Guadalupe, Hays, Travis3 hr
Jun 10, 1:44 PM CDTFlash Flood WarningEWXAtascosa, Bexar, Comal3 hr
Jun 10, 2:17 PM CDTFlash Flood WarningEWXWilson3 hr
Jun 10, 2:56 PM CDTFlash Flood WarningEWXMedina3 hr
Jun 10, 3:21 PM CDTFlash Flood WarningEWXGuadalupe3 hr
Jun 10, 4:06 PM CDTFlash Flood WarningEWXBandera, Uvalde3 hr
Jun 10, 5:55 PM CDTFlash Flood WarningEWXMedina2 hr
Jun 10, 6:25 PM CDTFlash Flood WarningEWXDeWitt, Gonzales, Lavaca3 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; radar from the NEXRAD Level II archive.