Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 11, NWS San Angelo, TX

June 1, 2003Tom Green County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 1, 2003, 6:05 PM CDT for Tom Green 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 1, 2003, 6:05 PM CDT (23:05 UTC)
Expired: Jun 1, 2003, 9:00 PM CDT
In force: 3 hr
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Tom Green County, TX

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 11.1 hours before the alert went out and 172 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: 1727 J/kg
Mixed-layer CIN: -220 J/kg
Mixed-layer LCL: 1491 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KSJT 012305
FFWSJT
TXC451-020200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
605 PM CDT SUN JUN 1 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  TOM GREEN COUNTY IN SOUTHWEST TEXAS

* UNTIL 900 PM CDT

* AT 600 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN OVER GRAPE CREEK...OR ABOUT 9 MILES NORTHWEST OF SAN ANGELO...
  MOVING SOUTHEAST AT 10 MPH.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR...
   SAN ANGELO AT 650 PM CDT
   VERIBEST AT 725 PM CDT
   WALL AT 740 PM CDT

* RAINFALL UP TO 3 INCHES EXPECTED THROUGH 900 PM 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.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

LAT...LON 3168 10053 3156 10068 3112 10042 3146 10016

$$

1 follow-up statement

000 
WGUS74 KSJT 012322
FFSSJT
TXC451-020200-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
622 PM CDT SUN JUN 1 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR TOM GREEN COUNTY 
UNTIL 9 PM CDT...

AT 618 PM...TOM GREEN COUNTY SHERIFF REPORTED WATER OVER HIGHWAY 
2288 IN FAR WESTERN SAN ANGELO. 

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.

$$

14

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.

NWS San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 1, 3:00 PM CDT, 3 hours 5 minutes earlier.

Area forecast discussion, Jun 1, 3:00 PM CDT, 3 hours 5 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
300 PM CDT SUN JUN 01 2003

TONIGHT-MONDAY...WATER VAPOR IMAGERY THIS AFTERNOON SHOWS SHORTWAVE
TRACKING EASTWARD FROM SOUTHEASTERN NM INTO WESTERN TX. EAST-WEST
STATIONARY FRONT ACROSS INTERSTATE 20 TO LIFT NORTHWARD TO RED RIVER
LATE THIS AFTERNOON AND EVENING. SHORTWAVE TO MOVE EASTWARD ACROSS
BIG COUNTRY TONIGHT. THIS SHOULD TRIGGER SCATTERED THUNDERSTORMS
WEST OF THE BIG COUNTRY AND CONCHO VALLEY BY LATE AFTERNOON...
AND EXPECT THUNDERSTORMS TO MOVE EAST ACROSS OUR NORTHERN AND
CENTRAL COUNTIES THIS EVENING INTO TONIGHT. WITH INCREASING UPPER
SUPPORT AND STRONG INSTABILITY...SEVERE STORMS POSSIBLE LATE THIS
AFTERNOON INTO EARLY TONIGHT WITH LARGE HAIL/DAMAGING WINDS THE MAIN
THREATS. STORMS MAY ORGANIZE INTO MCS TONIGHT. IN ADDITION...ANOTHER
MCS COULD TRACK SOUTHEASTWARD ACROSS OK/RED RIVER VALLEY AND THE
SOUTHERN END OF THIS COULD CLIP THE BIG COUNTRY LATE TONIGHT. WILL
BOOST POPS SLIGHTLY TONIGHT...AND POPS MAY NEED TO BE INCREASED
SIGNIFICANTLY IF GREATER THUNDERSTORM COVERAGE BECOMES MORE CERTAIN.
WITH PRECIPITABLE WATER VALUES OF 1.0-1.5 INCHES...HEAVY RAINFALL
AND LOCALIZED RUNOFF PROBABLE...BUT SPEED OF STORM MOVEMENT ACROSS
OUR COUNTIES SHOULD PRECLUDE FLASH FLOOD THREAT. WILL MONITOR
DEVELOPING SITUATION. AS SHORTWAVE TROUGH DIVES SOUTHEASTWARD INTO
THE MID MISSISSIPPI VALLEY MONDAY...FRONT NEAR THE RED RIVER TO MOVE
BACK SOUTH AGAIN AS A WEAK COLD FRONT ACROSS WEST CENTRAL TX. FLY IN
THE OINTMENT FOR WINDS AND FRONTAL TIMING IS IF OVERNIGHT MCS IN
OKLAHOMA DRIVES A STRONG OUTFLOW BOUNDARY SOUTHWARD INTO OUR
COUNTIES...AND WHETHER THIS BECOMES THE EFFECTIVE FRONT. A LITTLE
BETTER MOISTURE AVAILABILITY INDICATED OVER OUR EASTERN COUNTIES
MONDAY. WITH THE SOUTHWARD MOVING FRONT...WILL CARRY THE HIGHEST
POPS IN THE HEARTLAND AND NW HILL COUNTRY...WITH LOWER POPS
ELSEWHERE. TEMPERATURES TO BE SLIGHTLY COOLER ACROSS NORTHERN...
CENTRAL AND EASTERN COUNTIES MONDAY.

MONDAY NIGHT THROUGH WEDNESDAY...MODELS DEVELOP AND CONTINUE
NORTHWEST FLOW ALOFT WITH A SERIES OF MINOR SHORT WAVES. AT THE
SURFACE...A WEAK FRONTAL BOUNDARY LINGERS OVER MAINLY THE BIG
COUNTRY. BEST POPS WILL BE TUESDAY EVENING AS A GOOD UPPER-LEVEL
VORT MAX MOVES OVER WEST CENTRAL TEXAS. BIG COUNTRY HIGHS TUESDAY
UNCERTAIN...A MEAN BETWEEN AVN AND ETA MOS LOOKS MORE REASONABLE.
OTHERWISE...NUMBERS CLOSE TO MOS GUIDANCE LOOK GOOD.

DAYS 4-7...HAVE COMPLETED FIRST ROUND OF ALL GRIDS IN GFE AND HAVE
SAVED ALL TO INTERSITE COORDINATION. LATEST MRF STILL VERY
AGGRESSIVE ON POPS FOR THURSDAY WITH ANOTHER WEAK COLD FRONT PUSHING
INTO WEST CENTRAL TEXAS. GIVEN THE PERSISTENCE OF THIS SOLUTION WILL
INCREASE SHOWERS AND THUNDERSTORM WORDING TO CHANCE FOR THURSDAY.
FOR THE REMAINING DAYS...WILL CONTINUE SLIGHT CHANCE. MRF MOS
NUMBERS LOOK GOOD FOR TEMPERATURES.

CCF PRELIMS...

ABI 071/093 070/090 068 41323
SJT 072/096 070/093 070 32322
JCT 072/097 070/093 073 23322

.SJT...NONE.

TONIGHT AND SUNDAY...19
SUNDAY NIGHT AND BEYOND...23/HUBER

Hazardous weather outlook, Jun 1, 2:30 PM CDT, 3 hours 35 minutes before

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-021915-

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE SAN ANGELO TX
230 PM CDT SUN JUN 1 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER MOST OF WEST
CENTRAL TEXAS THIS AFTERNOON AND TONIGHT. THE SLIGHT RISK AREA
ENCOMPASSES ALL OF WEST CENTRAL TEXAS NORTH OF A LINE FROM SONORA TO
RICHLAND SPRINGS. AN UPPER LEVEL DISTURBANCE...CURRENTLY MOVING
INTO WEST TEXAS FROM SOUTHEAST NEW MEXICO...WILL TRACK ACROSS THE
BIG COUNTRY TONIGHT. THIS WILL TRIGGER SCATTERED THUNDERSTORMS WEST
OF THE BIG COUNTRY AND CONCHO VALLEY THIS AFTERNOON. THE STORMS WILL
MOVE INTO THE BIG COUNTRY AND CONCHO VALLEY BY THIS EVENING. THE
THUNDERSTORMS MAY ORGANIZE INTO A STORM COMPLEX ACROSS WEST CENTRAL
TEXAS. WITH VERY UNSTABLE AIR IN PLACE...SOME STORMS MAY BE SEVERE
WITH LARGE HAIL AND DAMAGING WINDS. LOCALLY HEAVY RAINFALL COULD
OCCUR...AND RAINFALL AMOUNTS OF ONE TO TWO INCHES WILL BE POSSIBLE
WITH THE STRONGER STORMS.

.DAYS TWO THROUGH SEVEN...
A WEAK COLD FRONT WILL MOVE BACK SOUTHWARD ACROSS WEST CENTRAL TEXAS
ON MONDAY. SCATTERED THUNDERSTORMS ARE POSSIBLE NEAR THIS FRONT...
WITH THE BEST CHANCE OF STORMS OVER THE HEARTLAND AND NORTHWEST HILL
COUNTRY. THE CHANCE FOR THUNDERSTORMS WILL CONTINUE THROUGH MUCH OF
THE UPCOMING WORKWEEK...AS A SERIES OF UPPER LEVEL DISTURBANCES AND
WEAK SURFACE BOUNDARIES AFFECT THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON INTO TONIGHT.

19

In the hours before

Local storm report, Jun 1, 4:21 PM CDT, 1 hour 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
0421 PM CDT SUN JUN 01 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0416 PM    13 W ROBERT LEE           TX   1.75 IN HAIL
06/01/03   COKE

BRAZZELL

Local storm report, Jun 1, 5:36 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
0536 PM CDT SUN JUN 01 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0528 PM    1 E ABILENE               TX   0.88 IN HAIL
06/01/03   TAYLOR

BRAZZELL

Local storm report, Jun 1, 5:54 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
0554 PM CDT SUN JUN 01 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0532 PM    3 N GRAPE CREEK           TX   0.88 IN HAIL
06/01/03   TOM GREEN

BRAZZELL

Local storm report, Jun 1, 5:55 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
0555 PM CDT SUN JUN 01 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0545 PM    GRAPE CREEK               TX   1.75 IN HAIL
06/01/03   TOM GREEN

BRAZZELL

Local storm report, Jun 1, 5:56 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
0556 PM CDT SUN JUN 01 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0550 PM    GRAPE CREEK               TX   70 MPH TSTORM WIND
06/01/03   TOM GREEN

BRAZZELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 3:55 PM CDT	Severe Thunderstorm Warning	SJT	Coke	65 min
Jun 1, 4:49 PM CDT	Severe Thunderstorm Warning	SJT	Nolan, Tom Green	56 min
Jun 1, 5:14 PM CDT	Severe Thunderstorm Warning	SJT	Coke	61 min
Jun 1, 5:33 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Taylor	57 min
Jun 1, 5:39 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	66 min
Jun 1, 5:47 PM CDT	Severe Thunderstorm Warning	SJT	Nolan	58 min
Jun 1, 5:59 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Runnels, Shackelford	61 min
Jun 1, 6:08 PM CDT	Severe Thunderstorm Warning	SJT	Fisher	52 min
Jun 1, 6:17 PM CDT	Severe Thunderstorm Warning	SJT	Jones	73 min
Jun 1, 6:39 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	66 min
Jun 1, 6:56 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, McCulloch	64 min
Jun 1, 6:57 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	78 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.