Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 23, NWS Austin/San Antonio, TX

May 26, 2003Edwards County, Val Verde County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 26, 2003, 12:10 AM CDT for Edwards County, Val Verde County, Texas. It was in force for 2 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: May 26, 2003, 12:10 AM CDT (05:10 UTC)
Expired: May 26, 2003, 2:10 AM CDT
In force: 2 hr
Issued by: NWS Austin/San Antonio, TX
Area: Counties, with a storm outline in the text

Counties Edwards County, TX, Val Verde County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 5.2 hours before the alert went out and 73 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2132 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1625 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 260505
FFWSAT
TXC137-465-260700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1210 AM CDT MON MAY 26 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  EDWARDS
  VAL VERDE

* UNTIL 210 AM CDT

* AT 1201 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY 
HEAVY RAIN OVER VAL VERDE AND EDWARDS COUNTIES NEAR THE CITIES OF   
COMSTOCK AND LOMA ALTA MOVING EAST AT 30 MPH. HEAVY RAINFALL UP TO 2 
INCHES PER HOUR IS POSSIBLE WITH THIS STORM.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.


LAT...LON 3025 10134 2967 10129 2969 10010 3027 10002

$$

1 follow-up statement

000 
WGUS74 KEWX 260541
FFSSAT
TXC137-465-260710-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1245 AM CDT MON MAY 26 2003

...A FLASH FLOOD WARNING CONTINUES FOR EDWARDS AND VAL VERDE COUNTIES
UNTIL 210 AM CDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS 
PRODUCING VERY HEAVY RAINFALL EXTENDING FROM JUST SOUTH OF COMSTOCK 
TO LOMA ALTA MOVING EAST AT 25 MPH. HEAVY RAINFALL OF 1 TO 2 INCHES 
PER HOUR WILL LIKELY CAUSE PONDING OF ROADWAYS AND FLOODING OF LOW 
WATER CROSSINGS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN
AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

Issued	Product	Office	Counties	Lasted
May 25, 10:15 PM CDT	Flash Flood Warning	EWX	Val Verde	2 hr
May 26, 2:15 AM CDT	Flash Flood Warning	EWX	Edwards	2 hr

Nearby

Flash Flood Warnings in Texas, 2003 Every 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.