Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 33, NWS San Angelo, TX

July 3, 2002Brown County, Texas

NWS San Angelo, TX issued this flash flood warning at Jul 3, 2002, 12:36 PM CDT for Brown 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: Jul 3, 2002, 12:36 PM CDT (17:36 UTC)
Expired: Jul 3, 2002, 3:15 PM CDT
In force: 3 hr
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Brown 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

Fort Worth, TX (KFWD), launched 12:00Z, 5.6 hours before the alert went out and 205 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: 828 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 505 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 132 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 KSJT 031736
FFWSJT
TXC049-032015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
1235 PM CDT WED JUL 3 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BROWN COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 315 PM CDT

* AT 1230 PM CDT...LAW ENFORCEMENT OFFICIALS CONTINUE TO INDICATE    
  HIGH WATER IN THE LAKE BROWNWOOD...BANGS...AND BROOKESMITH AREAS   
  OF CENTRAL AND WESTERN BROWN COUNTY. 

* SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO REDEVELOP     
  ACROSS BROWN COUNTY THROUGH MID AFTERNOON...MOVING NORTHWEST AT    
  AROUND 10 MPH. EACH OF THESE SHOWERS AND THUNDERSTORMS WILL BE     
  CAPABLE OF PRODUCING TORRENTIAL RAINFALL OF 1 TO 2 INCHES PER      
  HOUR. ANY ADDITIONAL RAINFALL WILL ONLY MAKE FLOODING CONDITIONS   
  EVEN WORSE.

* RAINFALL TOTALING 3 TO 5 INCHES HAS FALLEN ACROSS WESTERN BROWN    
  COUNTY SINCE 4 AM...WITH HEAVIER TOTALS OF 6 TO 8 INCHES ACROSS    
  PARTS OF CALLAHAN AND COLEMAN COUNTIES. RUNOFF FROM THESE          
  RAINS WILL MOVE SOUTH DOWN PECAN BAYOU AND JIM NED CREEK           
  TOWARDS LAKE BROWNWOOD. RESIDENTS OF BROWN COUNTY...ESPECIALLY     
  THOSE ALONG PECAN BAYOU AND JIM NED CREEK...SHOULD BE ALERT FOR    
  RAPIDLY RISING FLOODWATERS. 

DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THE WATER DEPTH 
MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. DO NOT ATTEMPT TO
DRIVE AROUND BARRICADES. MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES.

LAT...LON 3151 9918 3153 9895 3172 9877 3199 9893
          3207 9918

1 follow-up statement

000 
WGUS74 KSJT 031936
FFSSJT
TXC049-032015-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
233 PM CDT WED JUL 3 20023

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR BROWN COUNTY UNTIL 
315 PM CDT...

AT 230 PM WEATHER SERVICE DOPPLER RADAR INDICATED NEWLY DEVELOPING 
SHOWERS OVER WESTERN BROWN COUNTY...MOVING NORTH AT 15 MPH. THESE 
COULD BRING AN ADDITIONAL QUARTER TO ONE HALF INCH OF RAIN TO WESTERN
BROWN COUNTY.  

THE MAIN CONCERN IS THE EFFECTS FROM THE VERY HEAVY RAINFALL WHICH 
OCCURRED IN THE REGION THIS MORNING. RAINFALL TOTALING 3 TO 5 INCHES 
HAS FALLEN ACROSS WESTERN BROWN COUNTY SINCE 4 AM...WITH HEAVIER 
TOTALS OF 6 TO 8 INCHES ACROSS PARTS OF CALLAHAN AND COLEMAN 
COUNTIES. RUNOFF FROM THESE RAINS WILL MOVE SOUTH DOWN PECAN BAYOU 
AND JIM NED CREEK TOWARDS LAKE BROWNWOOD. RESIDENTS OF BROWN 
COUNTY...ESPECIALLY THOSE ALONG PECAN BAYOU AND JIM NED CREEK... 
SHOULD BE ALERT FOR RAPIDLY RISING FLOODWATERS. 

THE GREATEST FLOODING CONCERN IS IN THE WESTERN PART OF BROWN 
COUNTY. RESIDENTIAL FLOODING AND EVACUATIONS HAVE BEEN REPORTED IN 
BANGS. IN ADDITION...HIGH WATER WAS REPORTED OVER THE ROADS IN THE 
TOWN OF THRIFTY. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. 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.

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 Jul 3, 2:51 AM CDT, 9 hours 45 minutes earlier.

Area forecast discussion, Jul 3, 2:51 AM CDT, 9 hours 45 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
251 AM CDT WED JUL 3 2002

THIS IS OUR RAIN DAY...RAIN CHANCES FOR WC TX DONT GET ANY BETTER
IN JULY.

TROPICAL AIRMASS THUNDERSTORMS CONTINUED TO MOVE CLOSER TO OUR
FORECAST AREA OVERNIGHT...WITH RAIN PERSISTING OVER THE EASTERN
THIRD OF OUR COUNTIES.  AS THE SYSTEM SLOWLY MOVES WEST...RAIN WILL
PROGRESS WEST AS WELL.

RUC HAS DONE A VERY GOOD JOB OF HANDLING EARLY MORNING RAINS...SO
WILL PLACE HIGH CONFIDENCE IN RAIN AND GO ABOVE GUIDANCE.  GUIDANCE
TEMPS LOOK GOOD WITH CLOUDS AND RAIN.  WILL GO WITH 50-80 POPS OVER
ENTIRE AREA...WITH THE LOWEST CHANCES WEST.  RAIN CHANCES PERSIST
TONIGHT...WITH ABOVE AVERAGE POPS FOR THE 4TH...WITH THE HIGHEST
CHANCES WEST...WILL ALSO INCLUDE SMALL POPS FOR FIREWORKS PERIOD FOR
THE WEST HALF OF THE CWA.

ALAS IT IS JULY AND AS THE UPPER RIDGE BUILDS OVER THE
PLAINS...DRIER WARMER WEATHER TAKES HOLD FOR THE WEEKEND AND OUT
PERIODS.  WILL DISCOUNT GULF MOISTURE WORKING INTO WCENTRL TX LATE
IN THE WEEKEND AND EARLY NEXT WEEK...SO EXTENDED WORDING WILL STAY
DRY WITH SEASONAL TEMPS.

WILL RE-ISSUE THE FLASH FLOOD WATCH...WILL TAKE OUT SUTTON...SINCE
VERY LITTLE RAIN HAS FALLEN THAT FAR WEST SO FAR...BUT WILL ADD
BROWN CALLAHAN AND COLEMAN COUNTIES.

ABI 084/068/086/070 7432
SJT 084/069/086/070 7532
JCT 083/070/087/071 8321

.SJT...FLASH FLOOD WATCH FOR MASON...MENARD... MCCULLOCH...
KIMBLE...SAN SABA...BROWN...CALLAHAN...AND COLEMAN COUNTIES.

25

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 11:46 PM CDT	Flash Flood Warning	SJT	San Saba	6 hr
Jul 3, 2:45 AM CDT	Flash Flood Warning	SJT	Brown, Coleman	3 hr
Jul 3, 3:14 AM CDT	Flash Flood Warning	SJT	Callahan	3 hr
Jul 3, 3:18 AM CDT	Flash Flood Warning	SJT	Runnels	3 hr
Jul 3, 5:38 AM CDT	Flash Flood Warning	SJT	Coleman	3 hr
Jul 3, 8:35 AM CDT	Flash Flood Warning	SJT	Coleman	3 hr
Jul 3, 8:44 AM CDT	Flash Flood Warning	SJT	Brown	4 hr
Jul 3, 9:32 AM CDT	Flash Flood Warning	SJT	Callahan	3 hr
Jul 3, 3:15 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	30 min
Jul 3, 3:28 PM CDT	Flash Flood Warning	SJT	Brown	4 hr

Nearby

Flash Flood Warnings in Texas, 2002 Every flash flood warning in 2002

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.