Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 10, NWS San Angelo, TX

April 23, 2004Shackelford County, Texas

NWS San Angelo, TX issued this flash flood warning at Apr 23, 2004, 7:18 PM CDT for Shackelford County, Texas. It was in force for 117 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 23, 2004, 7:18 PM CDT (00:18 UTC)
Expired: Apr 23, 2004, 9:15 PM CDT
In force: 117 min
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Shackelford County, TX

What was reported inside it

Time	Report	Where	Remark
Apr 23, 8:30 PM CDT	FLASH FLOOD	6 N Albany, TX	WATER CONTINUES OVER THE ROAD AT NAIL RANCH.
Apr 23, 8:30 PM CDT	FLASH FLOOD	6 N Albany, TX	WATER CONTINUES OVER THE ROAD AT NAIL RANCH.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 72 minutes after it went out.

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 00:00Z, 0.3 hours before the alert went out and 200 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: 1475 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 895 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KSJT 240023
FFWSJT
TXC417-240215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
718 PM CDT FRI APR 23 2004

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SHACKELFORD COUNTY IN NORTH CENTRAL TEXAS
  THIS INCLUDES THE CITY OF ALBANY

* UNTIL 915 PM CDT

* AT 716 PM CDT...STRONG TO SEVERE THUNDERSTORMS FROM ALBANY TO      
  SOUTH OF FORT GRIFFIN WILL MOVE NORTHEAST AT 15 MPH. VERY HEAVY    
  RAINS OF 3 TO 5 INCHES OF ADDITIONAL RAIN CAN BE EXPECTED THROUGH  
  915 PM. THE RAIN WILL CAUSE FLASH FLOODING IN ALBANY. 

* THE THUNDERSTORM PRODUCING FLASH FLOODING WILL BE NEAR...
  ALBANY BY 740 PM CDT
  FORT GRIFFIN BY 815 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.

LAT...LON 3254 9960 3256 9923 3294 9910 3293 9957

$$

04

1 follow-up statement

000 
WGUS74 KSJT 240112
FFSSJT
TXC417-240215-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
810 PM CDT FRI APR 23 2004

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR SHACKELFORD
COUNTY UNTIL 915 PM CDT...

AT 807 PM CDT...DOPPLER RADAR ESTIMATED THAT 4 TO 6 INCHES OF RAIN 
HAVE FALLEN 10 MILES NORTHWEST OF ALBANY THIS EVENING. ALSO STRONG 
TO SEVERE STORMS FROM ALBANY TO 10 MILES SOUTH OF ALBANY AT 810 PM 
WILL MOVE NORTHEAST AT 15 MPH...PRODUCING ANOTHER 1 TO 3 INCHES OF 
RAINFALL THROUGH 915 PM. THIS WILL CONTINUE TO PRODUCE FLASH 
FLOODING IN SHACKELFORD COUNTY.

$$

04

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 Apr 23, 1:08 PM CDT, 6 hours 10 minutes earlier.

Area forecast discussion, Apr 23, 1:08 PM CDT, 6 hours 10 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
108 PM CDT FRI APR 23 2004

.SHORT TERM...BRIEF AS WILL BE GOING INTO SEVERE WEATHER OPERATIONS
SHORTLY WITH DRYLINE STORMS FIRING UP ALREADY. BIGGEST THREAT FOR
SEVERE WEATHER WILL BE FROM SAN ANGELO NORTHEAST TO BAIRD. AS THE
COLD FRONT PROGRESSES TO THE SOUTH...ANTICIPATE THAT THE ACTIVITY
WILL BECOME MORE OF A HEAVY RAIN EVENT IN THE LATE EVENING INTO THE
OVERNIGHT. STILL ANTICIPATE POST FRONTAL ACTIVITY TO CONTINUE
THROUGH TOMORROW INTO EARLY TOMORROW NIGHT. STILL WILL BE FAIRLY
COOL TOMORROW WITH CLOUDS AND PRECIP. ALREADY UNDER A TORNADO WATCH
TIL 6 PM...AND WILL CONTINUE TO WATCH THROUGH THE EVENING. THINKING
NOW IS THAT THE BEST SEVERE WEATHER THREAT WILL BE FROM 3 TO 9 PM.

&&

.LONG TERM...
DID NOT MAKE MUCH CHANGE TO THE EXTENDED FORECAST TODAY. DID LOWER
POPS FOR MUCH OF THE PERIOD IN THE EXTENDED AND IT DID RECONFIGURE
THE MENTIONABLE POPS A LITTLE.

&&

.PRELIMINARY POINT TEMPS/POPS...
ABILENE     58  68  56  73 /  80  70  40   0
SAN ANGELO  60  70  57  75 /  80  70  40  10
JUNCTION    65  73  60  74 /  80  80  50  20

&&

.SJT WATCHES/WARNINGS/ADVISORIES...TORNADO WATCH UNTIL 6 PM FOR ALL
BUT THE SOUTHERN SIX COUNTIES.
.

&&

27/BRAZZELL

Hazardous weather outlook, Apr 23, 1:05 PM CDT, 6 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
105 PM CDT FRI APR 23 2004

SPOTTER ACTIVATION WILL BE LIKELY.
TXZ049-054-064>066-071>073-098-099-113-114-127-128-139-140-154-155-
241800-
BROWN TX-CALLAHAN TX-COKE TX-COLEMAN TX-CONCHO TX-FISHER TX-
HASKELL TX-IRION TX-JONES TX-MCCULLOCH TX-NOLAN TX-RUNNELS TX-
SAN SABA TX-SHACKELFORD TX-STERLING TX-TAYLOR TX-THROCKMORTON TX-
TOM GREEN TX-
105 PM CDT FRI APR 23 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...
A TORNADO WATCH IS IN EFFECT UNTIL 6 PM.
THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS NORTH OF A LINE FROM
SAN ANGELO TO BROWNWOOD THIS AFTERNOON THROUGH THIS EVENING. AS A
SLOW MOVING COLD FRONT WILL INTERACTS WITH AN ACTIVE
DRYLINE TO PRODUCE THUNDERSTORMS CAPABLE OF VERY LARGE
HAIL...DAMAGING WINDS TO 70 MPH...AND A FEW TORNADOES.

HAZARDOUS IS ANTICIPATED THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...SPOTTER ACTIVATION IS LIKELY THIS
AFTERNOON AND EVENING.

TXZ076>078-168>170-241800-
CROCKETT TX-KIMBLE TX-MASON TX-MENARD TX-SCHLEICHER TX-SUTTON TX-
105 PM CDT FRI APR 23 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS
AFTERNOON AND EVENING. AS A SLOW MOVING COLD FRONT INTERACTS WITH AN
ACTIVE DRYLINE TO PRODUCE THUNDERSTORMS CAPABLE OF VERY LARGE
HAIL...DAMAGING WINDS TO 70 MPH.

HAZARDOUS WEATHER IS POSSIBILE THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...SPOTTER ACTIVATION IS POSSIBLE THIS
AFTERNOON AND EVENING.

In the hours before

Local storm report, Apr 23, 6:10 PM CDT, 1 hour 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
610 PM CDT FRI APR 23 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0609 PM     HAIL             WOODSON                 33.01N 99.05W
04/23/2004  0.88 INCH        THROCKMORTON       TX   LAW ENFORCEMENT

&&

BRAZZELL

Local storm report, Apr 23, 6:11 PM CDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
611 PM CDT FRI APR 23 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0610 PM     HAIL             HAWLEY                  32.61N 99.81W
04/23/2004  1.00 INCH        JONES              TX   AMATEUR RADIO

&&

BRAZZELL

Local storm report, Apr 23, 6:12 PM CDT, 1 hour 6 minutes before

PRELIMINARY LOCAL STORM REPORT ... SUMMARY
NATIONAL WEATHER SERVICE SAN ANGELO TX
612 PM CDT FRI APR 23 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0218 PM     HAIL             4 W RULE                33.18N 99.96W
04/23/2004  1.00 INCH        HASKELL            TX   LAW ENFORCEMENT

0233 PM     HAIL             RULE                    33.18N 99.89W
04/23/2004  0.88 INCH        HASKELL            TX   PUBLIC

0249 PM     TORNADO          2 S HASKELL             33.16N 99.73W
04/23/2004                   HASKELL            TX   BROADCAST MEDIA

            BRIEF ON THE GROUND

0305 PM     HAIL             3 E HASKELL             33.16N 99.73W
04/23/2004  1.75 INCH        HASKELL            TX   BROADCAST MEDIA

0310 PM     HAIL             5 E HASKELL             33.16N 99.65W
04/23/2004  2.75 INCH        HASKELL            TX   BROADCAST MEDIA

0321 PM     TORNADO          7 W THROCKMORTON        33.18N 99.30W
04/23/2004                   THROCKMORTON       TX   STORM CHASER

            SPOTTER REPORTED TWO BREIF TORNADOES

0324 PM     TORNADO          6 W THROCKMORTON        33.18N 99.28W
04/23/2004                   THROCKMORTON       TX   STORM CHASER

            STORM CHASER REPORTED A TORNADO

0435 PM     HAIL             17 N THROCKMORTON       33.42N 99.18W
04/23/2004  0.88 INCH        BAYLOR             TX   STORM CHASER

0453 PM     HAIL             SWEETWATER              32.47N 100.40W
04/23/2004  0.75 INCH        NOLAN              TX   LAW ENFORCEMENT

0525 PM     HAIL             7 S ROBY                32.65N 100.38W
04/23/2004  1.00 INCH        FISHER             TX   LAW ENFORCEMENT

0542 PM     HAIL             NOODLE                  32.60N 100.05W
04/23/2004  1.00 INCH        JONES              TX   LAW ENFORCEMENT

0548 PM     HAIL             5 E NOODLE              32.60N 99.97W
04/23/2004  1.75 INCH        JONES              TX   LAW ENFORCEMENT

0549 PM     HAIL             SWEETWATER              32.47N 100.40W
04/23/2004  0.75 INCH        NOLAN              TX   LAW ENFORCEMENT

0552 PM     HAIL             1 S SWEETWATER          32.45N 100.40W
04/23/2004  1.75 INCH        NOLAN              TX   FIRE DEPT/RESCUE

0600 PM     HAIL             2 S SWEETWATER          32.44N 100.40W
04/23/2004  1.00 INCH        NOLAN              TX   LAW ENFORCEMENT

0600 PM     HAIL             3 S SWEETWATER          32.43N 100.40W
04/23/2004  1.75 INCH        NOLAN              TX   BROADCAST MEDIA

            RELAYED THROUGH KTXS TV

0609 PM     HAIL             WOODSON                 33.01N 99.05W
04/23/2004  0.88 INCH        THROCKMORTON       TX   LAW ENFORCEMENT

0610 PM     HAIL             HAWLEY                  32.61N 99.81W
04/23/2004  1.00 INCH        JONES              TX   AMATEUR RADIO

&&
ALL REPORTS RECEIVED SINCE THE EVENT BEGIN

BRAZZELL

Local storm report, Apr 23, 6:41 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
641 PM CDT FRI APR 23 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0600 PM     FLASH FLOOD      14 S ROBY               32.54N 100.38W
04/23/2004                   FISHER             TX   LAW ENFORCEMENT

            WATER OVER THE ROAD OVER HIGHWAY 70

0639 PM     FLASH FLOOD      SWEETWATER              32.47N 100.40W
04/23/2004                   NOLAN              TX   LAW ENFORCEMENT

            SOME ROADS UNDER WATER IN SWEETWATER

&&

BRAZZELL

Local storm report, Apr 23, 6:56 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
656 PM CDT FRI APR 23 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0655 PM     HAIL             5 N ALBANY              32.80N 99.30W
04/23/2004  1.75 INCH        SHACKELFORD        TX   LAW ENFORCEMENT

&&

BRAZZELL

Local storm report, Apr 23, 7:13 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
713 PM CDT FRI APR 23 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0712 PM     HAIL             ALBANY                  32.73N 99.30W
04/23/2004  2.00 INCH        SHACKELFORD        TX   LAW ENFORCEMENT

&&

BRAZZELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 7:26 PM CDT	Severe Thunderstorm Warning	SJT	Shackelford	64 min
Apr 23, 8:20 PM CDT	Flash Flood Warning	SJT	Taylor	115 min
Apr 23, 8:22 PM CDT	Severe Thunderstorm Warning	SJT	Coke	53 min
Apr 23, 8:26 PM CDT	Flash Flood Warning	SJT	Callahan	2 hr
Apr 23, 8:26 PM CDT	Severe Thunderstorm Warning	SJT	Taylor	64 min
Apr 23, 8:48 PM CDT	Severe Thunderstorm Warning	SJT	Runnels	57 min
Apr 23, 9:32 PM CDT	Flash Flood Warning	SJT	Coke, Runnels	3 hr
Apr 23, 9:44 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	61 min
Apr 23, 10:01 PM CDT	Severe Thunderstorm Warning	SJT	Coke	59 min
Apr 23, 10:03 PM CDT	Severe Thunderstorm Warning	SJT	Callahan	27 min
Apr 23, 10:30 PM CDT	Flash Flood Warning	SJT	Callahan	3 hr
Apr 24, 9:35 AM CDT	Flash Flood Warning	SJT	Callahan	115 min

Nearby

Flash Flood Warnings in Texas, 2004 Every flash flood warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.