Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 17, NWS Austin/San Antonio, TX

March 25, 2003Gillespie County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Mar 25, 2003, 5:32 PM CST for Gillespie 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 as issued.

The facts

Issued
Mar 25, 2003, 5:32 PM CST (23:32 UTC)
Expired
Mar 25, 2003, 8:30 PM CST
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Gillespie County, TX

The radar

The Austin/San Antonio radar (KEWX), 91 km from the middle of the area, began a volume at 23:35 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 12:00Z, 11.5 hours before the alert went out and 222 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 12:00Z on 2003-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1059 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 2003-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 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
1059 J/kg
Mixed-layer CIN
-217 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 252334
FFWSAT
TXC171-260230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
532 PM CST TUE MAR 25 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  GILLESPIE

* UNTIL 830 PM CST

* AT 532 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  OVER LUCKENBACH...OR ABOUT 11 MILES SOUTHEAST OF FREDERICKSBURG...
  MOVING NORTHEAST AT 5 MPH.

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  LUCKENBACH
  LBJ STATE PARK

BETWEEN HIGHWAY 87 AND 290...SOUTH GRAPE CREEK AND OTHER SMALL 
TRIBUTARIES TO THE PEDERNALES WILL BE ON THE RISE. LOW WATER 
CROSSINGS WILL BE FLOODING.

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.


LAT...LON 3014 9880 3022 9884 3037 9859

$$
1 follow-up statement
000 
WGUS74 KEWX 260212
FFSSAT
TXC171-259-260315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
811 PM CST TUE MAR 25 2003

...THE FLASH FLOOD WARNING FOR GILLESPIE AND KENDALL COUNTIES HAS
BEEN CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL HAS ENDED
ACROSS THE WARNED AREA...AND THE FLOOD THREAT HAS DIMINISHED. SOME
MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING HAS
ENDED...AND THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 25, 5:01 PM CSTSevere Thunderstorm WarningEWXKendall59 min
Mar 25, 5:08 PM CSTSevere Thunderstorm WarningEWXBandera52 min
Mar 25, 5:13 PM CSTSevere Thunderstorm WarningEWXUvalde62 min
Mar 25, 5:18 PM CSTSevere Thunderstorm WarningEWXGillespie42 min
Mar 25, 5:27 PM CSTSevere Thunderstorm WarningEWXBlanco63 min
Mar 25, 5:37 PM CSTSevere Thunderstorm WarningEWXBurnet53 min
Mar 25, 5:46 PM CSTFlash Flood WarningEWXKendall3 hr
Mar 25, 5:51 PM CSTSevere Thunderstorm WarningEWXWilliamson54 min
Mar 25, 5:58 PM CSTSevere Thunderstorm WarningEWXKendall62 min

Nearby

Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003

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.