Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 45, NWS Austin/San Antonio, TX

June 13, 1999Uvalde County, Zavala County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 13, 1999, 12:39 AM CDT for Uvalde County, Zavala County, Texas. It was in force for 116 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 13, 1999, 12:39 AM CDT (05:39 UTC)
Expired
Jun 13, 1999, 2:35 AM CDT
In force
116 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Uvalde County, TX, Zavala County, TX

The radar

The Laughlin AFB radar (KDFX), 53 km from the middle of the area, began a volume at 05:39 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

Del Rio, TX (KDRT), launched 00:00Z, 5.7 hours before the alert went out and 109 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 1999-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1519 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, Del Rio, TX at 00:00Z on 1999-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
1519 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
2075 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
31 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 KSAT 130540
FFWSAT
TXC463-507-130735-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1239 AM CDT SUN JUN 13 1999

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  UVALDE COUNTY IN TEXAS
  ZAVALA COUNTY IN TEXAS

* UNTIL 235 AM CDT

* AT AT 1230 AM A LINE OF THUNDERSTORMS WITH HEAVY RAIN WAS MOVING
  EASTWARD ACROSS UVALDE AND ZAVALA COUNTIES WITH RAINFALL
  RATES OF ONE TO TWO INCHES PER HOUR.  THE RAIN WILL CONTINUE FOR
  THE NEXT HOUR AND END FROM THE WEST WITH RAIN RUNOFF CONTINUING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGER OF FLOODING.

JDS

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL... DEADLY LIGHTNING... AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DONT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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, Jun 12, 8:17 PM CDT, 4 hours 22 minutes before
TXZ191-205>208-130215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
817 PM CDT SAT JUN 12 1999

...SEVERE THUNDERSTORM WARNING FOR BASTROP AND CALDWELL COUNTIES HAS
EXPIRED...

THE SEVERE THUNDERSTORMS OVER BASTROP AND CALDWELL COUNTIES HAVE
DECREASED IN INTENSITY...HOWEVER THE STORMS REMAINED STRONG AND
COULD BECOME SEVERE AGAIN AS THEY MOVE SOUTHWESTWARD AT NEAR 25
MPH TOWARD COMAL AND GUADALUPE COUNTIES.

THIS CLUSTER OF STRONG THUNDERSTORMS FROM BETWEEN NEW BRAUNFELS...
BUDA AND LULING CONTINUES TO MOVE SOUTHWESTWARD NEAR I35 TOWARDS
NEW BRAUNFELS AND CANYON LAKE.  THESE STORMS WILL PRODUCE BRIEF
HEAVY RAIN...STRONG GUSTY WINDS AND DANGEROUS LIGHTNING FOR THE NEXT
HOUR.

CAMPERS...BOATERS AND OTHERS INVOLVED IN OUTDOOR ACTIVITIES
SHOULD BE READY TO SEEK SAFE SHELTER IF A THUNDERSTORM THREATENS.
Special weather statement, Jun 12, 8:17 PM CDT, 4 hours 22 minutes before
TXZ191-205>208-130215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
817 PM CDT SAT JUN 12 1999

...SEVERE THUNDERSTORM WARNING FOR BASTROP AND CALDWELL COUNTIES HAS
EXPIRED...

THE SEVERE THUNDERSTORMS OVER BASTROP AND CALDWELL COUNTIES HAVE
DECREASED IN INTENSITY...HOWEVER THE STORMS REMAINED STRONG AND
COULD BECOME SEVERE AGAIN AS THEY MOVE SOUTHWESTWARD AT NEAR 25
MPH TOWARD COMAL AND GUADALUPE COUNTIES.

THIS CLUSTER OF STRONG THUNDERSTORMS FROM BETWEEN NEW BRAUNFELS...
BUDA AND LULING CONTINUES TO MOVE SOUTHWESTWARD NEAR I35 TOWARDS
NEW BRAUNFELS AND CANYON LAKE.  THESE STORMS WILL PRODUCE BRIEF
HEAVY RAIN...STRONG GUSTY WINDS AND DANGEROUS LIGHTNING FOR THE NEXT
HOUR.

CAMPERS...BOATERS AND OTHERS INVOLVED IN OUTDOOR ACTIVITIES
SHOULD BE READY TO SEEK SAFE SHELTER IF A THUNDERSTORM THREATENS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 7:18 PM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell57 min
Jun 12, 8:30 PM CDTFlash Flood WarningEWXVal Verde3 hr
Jun 12, 8:35 PM CDTSevere Thunderstorm WarningEWXBexar, Comal, Guadalupe, Hays55 min
Jun 12, 9:18 PM CDTSevere Thunderstorm WarningEWXBexar, Comal, Guadalupe57 min
Jun 12, 9:18 PM CDTSevere Thunderstorm WarningEWXKendall57 min
Jun 12, 9:20 PM CDTFlash Flood WarningEWXBexar, Comal, Guadalupe100 min
Jun 12, 10:10 PM CDTSevere Thunderstorm WarningEWXBexar60 min
Jun 12, 10:20 PM CDTSevere Thunderstorm WarningEWXBandera65 min
Jun 12, 11:01 PM CDTFlash Flood WarningEWXBandera, Kerr2 hr
Jun 12, 11:01 PM CDTSevere Thunderstorm WarningEWXBandera, Kerr2 hr
Jun 12, 11:35 PM CDTSevere Thunderstorm WarningEWXKinney, Maverick, Uvalde, Zavala70 min
Jun 12, 11:35 PM CDTSevere Thunderstorm WarningEWXDimmit70 min
Jun 12, 11:51 PM CDTSevere Thunderstorm WarningEWXReal64 min
Jun 13, 1:00 AM CDTSevere Thunderstorm WarningEWXFrio, Medina75 min
Jun 13, 3:26 PM CDTFlash Flood WarningEWXWilliamson3 hr

Nearby

Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999

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.