Alert archive / Texas / Areal Flood Warnings in 2012

Areal Flood Warning 4, NWS Corpus Christi, TX

September 29, 2012Goliad County, Victoria County, Texas

NWS Corpus Christi, TX issued this areal flood warning at Sep 29, 2012, 5:17 AM CDT for Goliad County, Victoria County, Texas. It was in force for 117 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 29, 2012, 5:17 AM CDT (10:17 UTC)
Expired: Sep 29, 2012, 7:14 AM CDT
In force: 117 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Flood severity: None

Counties Goliad County, TX, Victoria County, TX

The radar

The Corpus Christi radar (KCRP), 109 km from the middle of the area, began a volume at 10:17 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

Corpus Christi, TX (KCRP), launched 00:00Z, 10.3 hours before the alert went out and 112 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: 1843 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal 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 areal flood warning went out at Sep 29, 5:11 AM CDT, 6 minutes earlier.

Area forecast discussion, Sep 29, 5:11 AM CDT, 6 minutes before

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Hazardous weather outlook, Sep 28, 5:32 AM CDT, 23 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
532 AM CDT FRI SEP 28 2012

GMZ230-235-250-255-270-275-TXZ229>234-239>247-291045-
BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS-
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT O'CONNOR-
COASTAL WATERS FROM BAFFIN BAY TO PORT ARANSAS OUT 20 NM-
COASTAL WATERS FROM PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT
20 NM-WATERS FROM BAFFIN BAY TO PORT ARANSAS FROM 20 TO 60 NM-
WATERS FROM PORT ARANSAS TO MATAGORDA SHIP CHANNEL FROM 20 TO
60 NM-LA SALLE-MCMULLEN-LIVE OAK-BEE-GOLIAD-VICTORIA-WEBB-DUVAL-
JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-ARANSAS-REFUGIO-CALHOUN-
532 AM CDT FRI SEP 28 2012

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL OCCUR TODAY WITH
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS EXPECTED TONIGHT.
LOCALLY HEAVY RAINFALL WITH THE THUNDERSTORM ACTIVITY MAY LEAD TO
A LOCALIZED FLOODING THREAT ACROSS THE AREA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED SATURDAY AND INTO
SATURDAY NIGHT. LOCALLY HEAVY RAINFALL WITH THE THUNDERSTORM
ACTIVITY MAY LEAD TO A LOCALIZED FLOODING THREAT ACROSS THE AREA.
IN ADDITION...AN ISOLATED STRONG TO SEVERE STORM MAY ALSO OCCUR
DURING THE DAY ON SATURDAY. SHOWER AND THUNDERSTORM CHANCES WILL
END FROM WEST TO EAST ON SUNDAY AS DRY AIR MOVES INTO THE REGION.

A MODERATE RISK OF RIP CURRENTS WILL ALSO EXIST ALONG GULF FACING
BEACHES ON SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

RH/TB

In the hours before

Local storm report, Sep 29, 1:53 AM CDT, 3 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
153 AM CDT SAT SEP 29 2012

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

0148 AM     HEAVY RAIN       2 NNW LAREDO            27.57N 99.49W
09/29/2012  M4.20 INCH       WEBB               TX   AMATEUR RADIO

            REPORTED 1/4 MILE EAST OF KGNS TV STUDIOS.

&&

HART

Special weather statement, Sep 29, 1:57 AM CDT, 3 hours 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
157 AM CDT SAT SEP 29 2012

TXZ230-231-239>241-290800-
DUVAL-JIM WELLS-LIVE OAK-MCMULLEN-WEBB-
157 AM CDT SAT SEP 29 2012

...STRONG THUNDERSTORMS WERE AFFECTING DUVAL...JIM WELLS...LIVE
OAK...MCMULLEN AND WEBB COUNTIES...

AT 152 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 12 MILES WEST OF
LOMA ALTA TO BRUNI...OR ALONG A LINE EXTENDING FROM 19 MILES NORTH OF
FREER TO 16 MILES NORTHWEST OF HEBBRONVILLE...MOVING EAST AT 20 MPH.

WINDS 30 TO 40 MPH ARE EXPECTED WITH THESE STORMS.

PZ

Local storm report, Sep 29, 2:02 AM CDT, 3 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
202 AM CDT SAT SEP 29 2012

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

0157 AM     HEAVY RAIN       1 N LAREDO              27.55N 99.49W
09/29/2012  M5.62 INCH       WEBB               TX   COCORAHS

            MEASURED AT SALDANA AND JACAMAN RD. WIDESPREAD FLOODING
            ALSO REPORTED IN THE AREA.

&&

HART

Special weather statement, Sep 29, 2:50 AM CDT, 2 hours 27 minutes before

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Special weather statement, Sep 29, 3:29 AM CDT, 1 hour 48 minutes before

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Local storm report, Sep 29, 5:02 AM CDT, 15 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 28, 9:43 PM CDT	Severe Thunderstorm Warning	CRP	Webb	62 min
Sep 28, 9:54 PM CDT	Areal Flood Advisory	CRP	Webb	111 min
Sep 28, 10:39 PM CDT	Flash Flood Warning	CRP	Webb	3 hr
Sep 28, 11:34 PM CDT	Severe Thunderstorm Warning	CRP	Webb	56 min
Sep 29, 12:26 AM CDT	Severe Thunderstorm Warning	CRP	La Salle, Webb	49 min
Sep 29, 1:12 AM CDT	Areal Flood Advisory	CRP	La Salle, Webb	48 min
Sep 29, 1:22 AM CDT	Severe Thunderstorm Warning	CRP	La Salle, Live Oak, McMullen	53 min
Sep 29, 1:29 AM CDT	Flash Flood Warning	CRP	Webb	91 min
Sep 29, 2:04 AM CDT	River Flood Warning	CRP	Webb	67 hr
Sep 29, 2:05 AM CDT	Areal Flood Advisory	CRP	Duval, La Salle, Live Oak, McMullen, Webb	55 min
Sep 29, 2:09 AM CDT	Severe Thunderstorm Warning	CRP	Bee, Live Oak, McMullen	51 min
Sep 29, 2:36 AM CDT	Flash Flood Warning	CRP	Live Oak, McMullen	96 min
Sep 29, 2:56 AM CDT	Areal Flood Advisory	CRP	Bee, Duval, Jim Wells, Live Oak, McMullen, Webb	64 min
Sep 29, 3:26 AM CDT	Areal Flood Advisory	CRP	Bee, Goliad, Live Oak	64 min
Sep 29, 4:06 AM CDT	Special Marine Warning	CRP		84 min
Sep 29, 5:27 AM CDT	Special Marine Warning	CRP		93 min
Sep 29, 6:59 AM CDT	Special Marine Warning	CRP		61 min
Sep 29, 2:43 PM CDT	Areal Flood Advisory	CRP	Live Oak	62 min
Sep 29, 3:11 PM CDT	Small Craft Advisory	CRP		40 hr
Sep 29, 3:50 PM CDT	Special Marine Warning	CRP		25 min
Sep 29, 4:06 PM CDT	Tornado Warning	CRP	Calhoun	54 min
Sep 29, 4:09 PM CDT	Special Marine Warning	CRP		51 min
Sep 29, 4:52 PM CDT	Tornado Warning	CRP	Calhoun	38 min
Sep 29, 5:02 PM CDT	Special Marine Warning	CRP		43 min
Sep 29, 5:08 PM CDT	Special Marine Warning	CRP		37 min
Sep 29, 5:11 PM CDT	Tornado Warning	CRP	Calhoun	34 min
Sep 29, 5:38 PM CDT	Areal Flood Advisory	CRP	Calhoun	52 min
Sep 29, 5:45 PM CDT	Special Marine Warning	CRP		30 min
Sep 29, 5:51 PM CDT	Tornado Warning	CRP	Calhoun	54 min
Sep 29, 6:32 PM CDT	Areal Flood Advisory	CRP	Calhoun	58 min
Sep 29, 6:46 PM CDT	Tornado Warning	CRP	Calhoun	14 min

Nearby

Areal Flood Warnings in Texas, 2012 Every areal flood warning in 2012

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.