Alert archive / Texas / Flash Flood Warnings in 2006

Flash Flood Warning 5, NWS San Angelo, TX

May 5, 2006Brown County, Texas

NWS San Angelo, TX issued this flash flood warning at May 5, 2006, 10:33 PM CDT for Brown County, Texas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 5, 2006, 10:33 PM CDT (03:33 UTC)
Expired: May 6, 2006, 2:30 AM CDT
In force: 4 hr
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Brown County, TX

The radar

The Dyess AFB radar (KDYX), 88 km from the middle of the area, began a volume at 03:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 3.6 hours before the alert went out and 199 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: 510 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 1221 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: -50 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

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 May 5, 6:20 PM CDT, 4 hours 13 minutes earlier.

Area forecast discussion, May 5, 6:20 PM CDT, 4 hours 13 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
620 PM CDT FRI MAY 5 2006

.AVIATION...
SCT TSTMS DEVELOPING ACROSS THE BIG COUNTRY. TORNADO WATCH IN
EFFECT FOR WEST CENTRAL TEXAS UNTIL 06/03Z. OTHER STORMS WILL
DEVELOP FURTHER SOUTH ACROSS THE REMAINDER OF WEST CENTRAL TEXAS.
STRONG UPPER LEVEL DYNAMICS ROTATING ACROSS THE AREA ALONG WITH
SURFACE BOUNDARIES WILL RESULT IN POSSIBLE SEVERE WEATHER TONIGHT.
CURRENTLY GOING WITH VRB35G45KT 3SM TSRAGR IN THE KABI TAF UNTIL
06/02Z. AREAS OF MVFR CIGS OF BKN020-030 WILL DEVELOP AFTER 06/03Z.

&&

.PREV DISCUSSION... (ISSUED 142 PM CDT FRI MAY 5 2006)

UPDATE...
UPDATED ZONES TO ADD TORNADO WATCH HEADLINE.

PREV DISCUSSION... (ISSUED 104 PM CDT FRI MAY 5 2006)

SHORT TERM...
ANOTHER ROUND OF SEVERE WEATHER LATE THIS AFTERNOON AND
TONIGHT...AS SPC DAY 1 OUTLOOK HAS THE SOUTHERN HALF OF THE CWFA
IN A MODERATE RISK. STORMS WILL FIRE ALONG NW-SE SURFACE BOUNDARY
NEAR A KMAF-KSJT-BRADY LINE AND ALONG DRYLINE ACROSS EXTREME
SOUTHEAST NEW MEXICO AND SOUTHWEST TEXAS. SUPERCELLS ARE A GOOD
BET DUE TO SBCAPE VALUES OF 2000 TO 3000 J/KG AND 0-6KM SHEAR OF
50 TO 60 KNOTS. MAIN SEVERE THREATS WILL BE VERY LARGE HAIL AND
DAMAGING WINDS. ALSO...0-3KM HODOGRAPHS SHOW GOOD CLOCKWISE
TURNING WITH HELICITY VALUES OF 150 TO 300...SO THERE IS POTENTIAL
FOR TORNADOES. LOW LEVEL MOISTURE AXIS IS CURRENTLY LOCATED ALONG
A KCOT-KSOA-KINK-KHOB LINE. GOING WITH LKLY POPS ACROSS THE CWFA
TONIGHT AS AN MCS WILL FORM BY 06/06Z AN MOVE EAST-SOUTHEAST
TOWARD CENTRAL TEXAS. LOCALLY HEAVY RAIN WILL BE A POSSIBILITY DUE
TO HIGH PW VALUES. WILL KEEP CHC POPS GOING FOR SATURDAY AS SOME
INSTABILITY AND SHEAR STILL PRESENT ALONG WITH SURFACE BOUNDARY.

LONG TERM...
MAINLY SLGT CHC POPS FOR SATURDAY NIGHT THROUGH MONDAY
NIGHT...THEN A DRY FORECAST TUESDAY THROUGH FRIDAY AS UPPER
HEIGHTS BUILD AND MID LEVEL CAPPING INCREASES. HIGHS WILL BE IN
THE LOWER TO MID 90S ACROSS MUCH OF THE AREA MONDAY THROUGH
WEDNESDAY. COOL FRONT TO MOVE SOUTH ACROSS WEST CENTRAL TEXAS LATE
NEXT WEEK...WITH HIGHS IN THE 80S THURSDAY AND FRIDAY.

.SJT WATCHES/WARNINGS/ADVISORIES...
TORNADO WATCH UNTIL 10 PM FRIDAY FOR THE FOLLOWING ZONES:
BROWN...CALLAHAN...COKE...COLEMAN...CONCHO...CROCKETT...FISHER...
HASKELL...IRION...JONES...KIMBLE...MASON...MCCULLOCH...MENARD...
NOLAN...RUNNELS...SAN SABA...SCHLEICHER...SHACKELFORD...
STERLING...SUTTON...TAYLOR...THROCKMORTON...AND TOM GREEN.

&&

Hazardous weather outlook, May 5, 1:32 PM CDT, 9 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
132 PM CDT FRI MAY 5 2006

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-061930-
FISHER-NOLAN-STERLING-COKE-RUNNELS-IRION-TOM GREEN-CONCHO-
CROCKETT-SCHLEICHER-SUTTON-HASKELL-THROCKMORTON-JONES-SHACKELFORD-
TAYLOR-CALLAHAN-COLEMAN-BROWN-MCCULLOCH-SAN SABA-MENARD-KIMBLE-
MASON-
132 PM CDT FRI MAY 5 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A TORNADO WATCH IS IN EFFECT FOR MUCH OF WEST CENTRAL TEXAS THROUGH
LATE EVENING...ROUGHLY ALONG AND SOUTH OF INTERSTATE 20.
INCREASING WIND SHEAR AND MODERATE TO HIGH ATMOSPHERIC INSTABILITY
WILL LEAD TO A POTENTIAL FOR RAPIDLY DEVELOPING SUPERCELL
THUNDERSTORMS AFTER 3 PM. VERY LARGE AND DESTRUCTIVE HAIL AND
ISOLATED TORNADOES WILL BE THE PRIMARY SEVERE WEATHER THREATS.
LOCALIZED FLASH FLOODING WILL BE ASSOCIATED WITH LONG LIVED
SUPERCELL THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS SATURDAY...MAINLY
EAST OF AN ABILENE TO JUNCTION LINE. THE PRIMARY SEVERE WEATHER
THREATS WILL BE LARGE HAIL AND DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE REQUIRED FROM THIS AFTERNOON INTO THE
EARLY MORNING HOURS SATURDAY.

14

In the hours before

Local storm report, May 5, 9:37 PM CDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
937 PM CDT FRI MAY 05 2006

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

0810 PM     HAIL             SWEETWATER              32.47N 100.40W
05/05/2006  E1.00 INCH       NOLAN              TX   BROADCAST MEDIA

&&

14

Local storm report, May 5, 9:44 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
944 PM CDT FRI MAY 05 2006

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

0940 PM     HAIL             BROWNWOOD               31.71N 98.99W
05/05/2006  E2.50 INCH       BROWN              TX   AMATEUR RADIO

&&

PMCCULLO

Local storm report, May 5, 9:52 PM CDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
952 PM CDT FRI MAY 05 2006

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

0915 PM     HAIL             MORAN                   32.55N 99.17W
05/05/2006  E2.75 INCH       SHACKELFORD        TX   LAW ENFORCEMENT

            DAMAGED VEHICLE WINDSHIELDS IN MORAN.

&&

14

Local storm report, May 5, 10:06 PM CDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1006 PM CDT FRI MAY 05 2006

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

1006 PM     HAIL             12 S MERKEL             32.29N 100.01W
05/05/2006  E1.75 INCH       TAYLOR             TX   AMATEUR RADIO

&&

14

Local storm report, May 5, 10:11 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1011 PM CDT FRI MAY 05 2006

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

1011 PM     HAIL             ABILENE                 32.45N 99.73W
05/05/2006  E0.75 INCH       TAYLOR             TX   AMATEUR RADIO

&&

PMCCULLO

Local storm report, May 5, 10:24 PM CDT, 9 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 7:04 PM CDT	Tornado Warning	SJT	Haskell	41 min
May 5, 7:07 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Runnels	53 min
May 5, 7:12 PM CDT	Severe Thunderstorm Warning	SJT	Jones	48 min
May 5, 7:28 PM CDT	Tornado Warning	SJT	Jones	47 min
May 5, 7:42 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Nolan	48 min
May 5, 7:43 PM CDT	Tornado Warning	SJT	Callahan	32 min
May 5, 7:44 PM CDT	Tornado Warning	SJT	Haskell, Shackelford, Throckmorton	46 min
May 5, 8:00 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Runnels	60 min
May 5, 8:09 PM CDT	Severe Thunderstorm Warning	SJT	Fisher	66 min
May 5, 8:13 PM CDT	Tornado Warning	SJT	Crockett	47 min
May 5, 8:14 PM CDT	Tornado Warning	SJT	Callahan, Jones, Shackelford, Taylor	46 min
May 5, 8:22 PM CDT	Tornado Warning	SJT	Coleman, Runnels	38 min
May 5, 8:25 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Throckmorton	50 min
May 5, 8:28 PM CDT	Severe Thunderstorm Warning	SJT	Taylor	62 min
May 5, 8:34 PM CDT	Severe Thunderstorm Warning	SJT	Taylor	41 min
May 5, 8:51 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones, Nolan	54 min
May 5, 8:56 PM CDT	Tornado Warning	SJT	Brown, Coleman	49 min
May 5, 8:58 PM CDT	Tornado Warning	SJT	Callahan, Shackelford	32 min
May 5, 9:03 PM CDT	Tornado Warning	SJT	Callahan, Taylor	42 min
May 5, 9:19 PM CDT	Tornado Warning	SJT	Jones, Shackelford	26 min
May 5, 9:25 PM CDT	Severe Thunderstorm Warning	SJT	Nolan, Taylor	35 min
May 5, 9:28 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Taylor	32 min
May 5, 9:38 PM CDT	Tornado Warning	SJT	Callahan, Coleman	52 min
May 5, 9:38 PM CDT	Tornado Warning	SJT	Brown	52 min
May 5, 9:45 PM CDT	Tornado Warning	SJT	Jones, Shackelford	30 min
May 5, 10:03 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Nolan, Shackelford, Taylor	27 min
May 5, 10:15 PM CDT	Tornado Warning	SJT	Runnels, Taylor	30 min
May 5, 10:16 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Nolan, Runnels, Taylor	59 min
May 5, 10:24 PM CDT	Severe Thunderstorm Warning	SJT	Brown	51 min
May 5, 10:31 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Callahan, Coleman, Shackelford, Taylor	59 min
May 5, 10:42 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman, Runnels, Taylor	63 min
May 5, 11:09 PM CDT	Severe Thunderstorm Warning	SJT	Brown	51 min
May 5, 11:36 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman, Concho, McCulloch, Runnels, San Saba	54 min
May 6, 12:29 AM CDT	Severe Thunderstorm Warning	SJT	Concho, McCulloch	61 min
May 6, 1:04 AM CDT	Severe Thunderstorm Warning	SJT	San Saba	26 min
May 6, 1:10 AM CDT	Severe Thunderstorm Warning	SJT	McCulloch	50 min
May 6, 2:04 AM CDT	Flash Flood Warning	SJT	McCulloch, San Saba	116 min
May 6, 2:11 AM CDT	Severe Thunderstorm Warning	SJT	McCulloch, Mason, Menard	53 min
May 6, 5:03 AM CDT	Severe Thunderstorm Warning	SJT	Menard	42 min
May 6, 6:00 AM CDT	Severe Thunderstorm Warning	SJT	Mason, Menard	30 min
May 6, 2:18 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Menard	42 min
May 6, 3:13 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Mason	47 min
May 6, 3:48 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Mason	27 min
May 6, 4:14 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch, Mason, San Saba	31 min
May 6, 4:45 PM CDT	Severe Thunderstorm Warning	SJT	Mason, San Saba	30 min

Nearby

Flash Flood Warnings in Texas, 2006 Every flash flood warning in 2006

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; radar from the NEXRAD Level II archive.