Alert archive / Texas / Flash Flood Warnings in 2009

Flash Flood Warning 22, NWS Corpus Christi, TX

October 3, 2009Aransas County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Oct 3, 2009, 11:58 PM CDT for Aransas County, Texas. It was in force for 53 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: Oct 3, 2009, 11:58 PM CDT (04:58 UTC)
Expired: Oct 4, 2009, 12:51 AM CDT
In force: 53 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Flood severity: None

County Aransas County, TX

The radar

The Corpus Christi radar (KCRP), 50 km from the middle of the area, began a volume at 05:01 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, 5.0 hours before the alert went out and 41 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: 2963 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 676 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 3.5
Supercell composite: 13.5

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 Oct 3, 8:08 PM CDT, 3 hours 50 minutes earlier.

Area forecast discussion, Oct 3, 8:08 PM CDT, 3 hours 50 minutes before

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Hazardous weather outlook, Oct 3, 5:22 AM CDT, 18 hours 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
522 AM CDT SAT OCT 3 2009

GMZ230-235-250-255-270-275-TXZ229>234-239>247-041030-
BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS-
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT OCONNOR-
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-
522 AM CDT SAT OCT 3 2009

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY
AND TONIGHT AS A WARM FRONT MOVES NORTH ACROSS THE REGION. LOCALLY
HEAVY RAINFALL WILL BE POSSIBLE...INCREASING THE POTENTIAL FOR
LOCALIZED FLOODING AND EXCESSIVE WATER ACCUMULATION IN LOW LYING
AREAS. AT THIS TIME AM NOT EXPECTING ANY ORGANIZED SEVERE
WEATHER...HOWEVER A BRIEF STRONG STORM CANNOT BE RULED OUT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED THUNDERSTORMS ARE EXPECTED SUNDAY. ISOLATED TO SCATTERED
THUNDERSTORMS ARE EXPECTED WEDNESDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

KRR/WC

In the hours before

Local storm report, Oct 3, 7:28 PM CDT, 4 hours 30 minutes before

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Special weather statement, Oct 3, 9:07 PM CDT, 2 hours 51 minutes before

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Local storm report, Oct 3, 9:10 PM CDT, 2 hours 48 minutes before

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Local storm report, Oct 3, 10:38 PM CDT, 1 hour 20 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
Oct 3, 7:43 PM CDT	Flash Flood Warning	CRP	Bee, Goliad	107 min
Oct 3, 8:08 PM CDT	Severe Thunderstorm Warning	CRP	Bee, Jim Wells, Live Oak, San Patricio	67 min
Oct 3, 9:13 PM CDT	Severe Thunderstorm Warning	CRP	Bee, Refugio, San Patricio	62 min
Oct 3, 9:16 PM CDT	Areal Flood Advisory	CRP	San Patricio	59 min
Oct 3, 9:22 PM CDT	Areal Flood Advisory	CRP	Refugio	53 min
Oct 3, 10:05 PM CDT	Severe Thunderstorm Warning	CRP	Goliad	40 min
Oct 3, 10:23 PM CDT	Flash Flood Warning	CRP	Refugio	52 min
Oct 3, 11:03 PM CDT	Flash Flood Warning	CRP	Aransas	42 min
Oct 3, 11:44 PM CDT	Flash Flood Warning	CRP	Refugio	31 min
Oct 4, 12:25 AM CDT	Areal Flood Advisory	CRP	Calhoun	50 min
Oct 4, 1:00 AM CDT	Special Marine Warning	CRP		60 min
Oct 4, 6:17 AM CDT	Areal Flood Advisory	CRP	La Salle	58 min
Oct 4, 7:36 AM CDT	Areal Flood Advisory	CRP	La Salle, McMullen	54 min
Oct 4, 9:37 AM CDT	Areal Flood Advisory	CRP	Goliad, Victoria	53 min
Oct 4, 10:08 AM CDT	Flash Flood Warning	CRP	Aransas, Calhoun, Refugio, Victoria	69 min
Oct 4, 10:24 AM CDT	River Flood Warning	CRP	Refugio	25 hr
Oct 4, 11:56 AM CDT	River Flood Warning	CRP	Bee, Nueces, San Patricio	10 hr
Oct 4, 12:38 PM CDT	River Flood Warning	CRP	Calhoun, Victoria	4 days
Oct 4, 12:38 PM CDT	River Flood Warning	CRP	Calhoun, Victoria	7 days
Oct 4, 12:45 PM CDT	Special Marine Warning	CRP		46 min
Oct 4, 1:23 PM CDT	River Flood Warning	CRP	Calhoun, Goliad, Victoria	4 days
Oct 4, 3:41 PM CDT	Small Craft Advisory	CRP		4 hr

Nearby

Flash Flood Warnings in Texas, 2009 Every flash flood warning in 2009

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.