Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 94, NWS Austin/San Antonio, TX

October 12, 2003Real County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 12, 2003, 2:56 AM CDT for Real County, Texas. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 12, 2003, 2:56 AM CDT (07:56 UTC)
Expired: Oct 12, 2003, 4:00 AM CDT
In force: 64 min
Issued by: NWS Austin/San Antonio, TX
Area: Counties, with a storm outline in the text

County Real County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 7.9 hours before the alert went out and 107 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: 76 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 596 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: -42 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 120759
FFWSAT
TXC385-120900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
256 AM CDT SUN OCT 12 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 400 AM CDT

* AT 256 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  5 MILES NORTHWEST OF LEAKEY...MOVING NORTHEAST AT 20 MPH.

A BAND OF MODERATE TO OCCASIONALLY HEAVY RAIN WILL MOVE ACROSS REAL 
COUNTY THROUGH 3:30 AM...PRODUCING AN ADDITIONAL ONE-QUARTER TO 
ONE-HALF INCH OF RAIN OVER ALREADY SATURATED SOILS. MANY ROADWAYS 
WILL REMAIN CLOSED ACROSS REAL COUNTY EARLY THIS MORNING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODS AND FLASH FLOODS. 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 2966 9999 2968 9983 2969 9964 3005 9973
          3007 9995

$$

1 follow-up statement

000 
WGUS74 KEWX 120843
FFSSAT
TXC385-120900-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
345 AM CDT SUN OCT 12 2003

...A FLASH FLOOD WARNING CONTINUES FOR REAL COUNTY UNTIL 400 AM
CDT...

AT 345 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED LIGHT 
TO MODERATE RAIN FALLING FROM JUST EAST OF BARKSDALE TO LEAKEY. 
ADDITIONAL RAINFALL AMOUNTS UP TO ONE QUARTER OF AN INCH COULD OCCUR 
OVER THE NEXT HOUR. 

WITH SATURATED GROUNDS IN PLACE...ANY ADDITIONAL RAINFALL COULD 
FURTHER AGGRAVATE ALREADY ELEVATED CREEKS AND STREAMS. LAW 
ENFORCEMENT REPORTED ALL ROADWAYS ARE STILL CLOSED EXCEPT HIGHWAY 83 
AND 41. DRIVING IS DISCOURAGED THIS MORNING ACROSS MUCH OF THE 
NORTHWEST HILL COUNTRY. IF YOU MUST VENTURE OUT...BE EXTREMELY 
CAUTIOUS...ESPECIALLY NEAR LOW WATER CROSSINGS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO
HIGHER GROUND. 

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
Oct 11, 7:24 PM CDT	Flash Flood Warning	EWX	Edwards, Kinney, Maverick, Real, Uvalde, Val Verde	4 hr
Oct 11, 8:23 PM CDT	Flash Flood Warning	EWX	Kerr	3 hr
Oct 11, 11:16 PM CDT	Flash Flood Warning	EWX	Dimmit, Edwards, Frio, Kinney, Maverick, Real and 3 more	4 hr
Oct 12, 2:14 AM CDT	Flash Flood Warning	EWX	Atascosa	4 hr
Oct 12, 3:02 AM CDT	Flash Flood Warning	EWX	Dimmit, Frio, Maverick, Medina, Uvalde, Zavala	3 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.