Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 39, NWS San Angelo, TX

June 10, 2003Coke County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 10, 2003, 12:49 AM CDT for Coke 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: Jun 10, 2003, 12:49 AM CDT (05:49 UTC)
Expired: Jun 10, 2003, 4:00 AM CDT
In force: 3 hr
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Coke County, TX

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 5.8 hours before the alert went out and 153 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: 2045 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1936 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KSJT 100551
FFWSJT
TXC081-100900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
1249 AM CDT TUE JUN 10 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  COKE COUNTY IN SOUTHWEST TEXAS

* UNTIL 400 AM CDT

* AT 1249 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN MOVING INTO WESTERN COKE COUNTY...FROM 14 MILES NORTHWEST OF  
  ROBERT LEE TO 15 MILES SOUTHWEST OF ROBERT LEE...MOVING EAST AT 25 
  MPH.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE NEAR...
   SANCO AT 1255 AM CDT
   ROBERT LEE AT 100 AM CDT
   TENNYSON...BRONTE AT 125 AM CDT

* RAINFALL TOTALING 1 TO 2 INCHES IS EXPECTED IN THE WARNED          
  AREA THROUGH 345 AM CDT

TURN AROUND DONT DROWN DO NOT DRIVE INTO AREAS WHERE WATER COVERS
THE ROAD. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW SAFE PASSAGE.
REMEMBER...MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODS AND FLASH FLOODS. 

LAT...LON 3207 10079 3171 10080 3171 10024 3207 10027

$$
24

1 follow-up statement

000 
WGUS74 KSJT 100739
FFSSJT
TXC081-100900-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
239 AM CDT TUE JUN 10 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR COKE COUNTY UNTIL
400 AM CDT...

AT 235 AM CDT...DOPPLER RADAR ESTIMATED THAT 1 TO 1.5 INCHES OF RAIN 
HAS FALLEN OVER WESTERN COKE COUNTY SINCE 12 AM...WITH ADDITIONAL 
RAINFALL UP TO 1/2 INCH EXPECTED BY 400 AM CDT. ALTHOUGH THE HEAVY 
RAINFALL HAS ENDED...RUNOFF FROM THE EARLIER RAIN WILL LIKELY CAUSE 
FLOODING OF LOW WATER CROSSINGS AND SMALL CREEKS ACROSS WESTERN COKE 
COUTY. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN 
DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT 
IMMEDIATELY AND SEEK HIGHER GROUND.

$$
08

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 10:55 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	80 min
Jun 9, 11:13 PM CDT	Severe Thunderstorm Warning	SJT	Sterling	77 min
Jun 10, 12:30 AM CDT	Severe Thunderstorm Warning	SJT	Coke	60 min
Jun 10, 12:41 AM CDT	Flash Flood Warning	SJT	Sterling	3 hr
Jun 10, 12:56 AM CDT	Severe Thunderstorm Warning	SJT	Tom Green	64 min
Jun 10, 1:01 AM CDT	Flash Flood Warning	SJT	Tom Green	4 hr
Jun 10, 1:10 AM CDT	Severe Thunderstorm Warning	SJT	Schleicher, Sutton	65 min
Jun 10, 1:14 AM CDT	Severe Thunderstorm Warning	SJT	Kimble, Menard	76 min
Jun 10, 1:20 AM CDT	Severe Thunderstorm Warning	SJT	Runnels	55 min

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.