Alert archive / Texas / Flash Flood Warnings in 2006

Flash Flood Warning 79, NWS Corpus Christi, TX

September 24, 2006Webb County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Sep 24, 2006, 4:27 AM CDT for Webb County, Texas. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 24, 2006, 4:27 AM CDT (09:27 UTC)
Expired
Sep 24, 2006, 5:30 AM CDT
In force
63 min
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

County Webb County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 9.5 hours before the alert went out and 196 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-pSkew-T log-p diagram, Corpus Christi, TX at 00:00Z on 2006-09-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5421 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2006-09-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
5421 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.0

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 Corpus Christi, TX wrote its last area forecast discussion before this flash flood warning went out at Sep 24, 3:32 AM CDT, 55 minutes earlier.

Area forecast discussion, Sep 24, 3:32 AM CDT, 55 minutes before
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Hazardous weather outlook, Sep 23, 5:53 AM CDT, 22 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
553 AM CDT SAT SEP 23 2006

GMZ230-235-250-255-270-275-TXZ229>234-239>247-241100-
BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS-
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT OCONNOR-
COASTAL WATERS BAFFIN BAY TO PORT ARANSAS OUT 20 NM-
COASTAL WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT 20 NM-
WATERS BAFFIN BAY TO PORT ARANSAS 20 TO 60 NM-
WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL 20 TO 60 NM-
LA SALLE-MCMULLEN-LIVE OAK-BEE-GOLIAD-VICTORIA-WEBB-DUVAL-
JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-ARANSAS-REFUGIO-CALHOUN-
553 AM CDT SAT SEP 23 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS AND THE MIDDLE
TEXAS COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT

AFTERNOON TEMPERATURES IN THE LOWER 90S COAST TO NEAR 100 DEGREES
ALONG THE RIO GRANDE WILL LEAD TO HEAT INDEX VALUES FROM 105 TO 109
DEGREES ACROSS SOUTH TEXAS.

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE
BRUSH COUNTRY AND NORTHERN COASTAL BEND LATER TONIGHT IN ADVANCE
OF A COLD FRONT MOVING OUT OF SOUTH CENTRAL TEXAS. THE STRONGER
THUNDERSTORMS WILL BE CAPABLE OF PRODUCING VERY HEAVY RAIN...WIND
GUSTS OF 40 TO 50 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING.
RAIN AMOUNTS OVER THE BRUSH COUNTRY AND NORTHERN COASTAL BEND
WILL RANGE BETWEEN 1 TO 3 INCHES WITH ISOLATED AMOUNTS OF 4 TO
5 INCHES POSSIBLE. LOCALIZED FLOODING OF LOW LYING AREAS AND
PONDING OF WATER IN POOR DRAINAGE AREAS WILL BE POSSIBLE LATE
TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED ALONG A COLD FRONT
EARLY SUNDAY. THE STRONGER THUNDERSTORMS MAY PRODUCE LOCALLY HEAVY
RAIN. RAINFALL AMOUNTS WILL RANGE FROM 1 TO 3 INCHES WITH ISOLATED
4 TO 5 INCHES POSSIBLE. LOCALIZED FLOODING OF LOW LYING AREAS AND
PONDING OF WATER IN POOR DRAINAGE AREAS WILL BE POSSIBLE ACROSS
SOUTH TEXAS SUNDAY MORNING.

SMALL CRAFT ADVISORY CONDITIONS WILL RESUME ON SUNDAY THROUGH
MONDAY WITH A STRONG OFFSHORE FLOW DEVELOPING IN THE WAKE OF THE
COLD FRONT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

TMT/TE

In the hours before

Special weather statement, Sep 23, 11:35 PM CDT, 4 hours 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1135 PM CDT SAT SEP 23 2006

TXZ232>234-240530-
BEE-GOLIAD-VICTORIA-
1135 PM CDT SAT SEP 23 2006

...STRONG THUNDERSTORMS WERE AFFECTING BEE...GOLIAD AND VICTORIA
COUNTIES...

AT 1129 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES SOUTHEAST
OF CUERO TO 7 MILES NORTHWEST OF GOLIAD TO 10 MILES SOUTHWEST OF
KENEDY...MOVING SOUTH AT 30 MPH.

WINDS 30 TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY
RAINFALL OF 1 TO 2 INCHES AND OCCASIONAL CLOUD TO GROUND LIGHTNING.

JR
Local storm report, Sep 24, 3:40 AM CDT, 47 minutes before
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Local storm report, Sep 24, 4:11 AM CDT, 16 minutes before
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The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 23, 11:41 PM CDTFlash Flood WarningCRPLa Salle3 hr
Sep 23, 11:50 PM CDTSevere Thunderstorm WarningCRPBee40 min
Sep 24, 12:11 AM CDTSpecial Marine WarningCRP91 min
Sep 24, 12:17 AM CDTFlash Flood WarningCRPJim Wells, Live Oak3 hr
Sep 24, 12:31 AM CDTFlash Flood WarningCRPMcMullen3 hr
Sep 24, 2:30 AM CDTFlash Flood WarningCRPWebb2 hr
Sep 24, 3:19 AM CDTSpecial Marine WarningCRP116 min
Sep 24, 3:53 AM CDTFlash Flood WarningCRPNueces97 min
Sep 24, 5:17 AM CDTSpecial Marine WarningCRP88 min

Nearby

Flash Flood Warnings in Texas, 2006Every 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.