Alert archive / Texas / Flash Flood Warnings in 2010

Flash Flood Warning 3, NWS Corpus Christi, TX

April 12, 2010Webb County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Apr 12, 2010, 2:03 PM CDT for Webb County, Texas. It was in force for 47 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: Apr 12, 2010, 2:03 PM CDT (19:03 UTC)
Expired: Apr 12, 2010, 2:50 PM CDT
In force: 47 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Flood severity: None

County Webb County, TX

The radar

The Corpus Christi radar (KCRP), 179 km from the middle of the area, began a volume at 19:03 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 12:00Z, 7.1 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-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: 597 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 469 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 31 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Apr 12, 12:56 PM CDT, 1 hour 7 minutes earlier.

Area forecast discussion, Apr 12, 12:56 PM CDT, 1 hour 7 minutes before

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Hazardous weather outlook, Apr 12, 9:37 AM CDT, 4 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
937 AM CDT MON APR 12 2010

GMZ230-235-250-255-270-275-TXZ229>234-239>247-131000-
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-
937 AM CDT MON APR 12 2010

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

.DAY ONE...TODAY AND TONIGHT

NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS WILL OCCUR THIS
MORNING THOUGH MID AFTERNOON ALONG AND SOUTH OF A COTULLA TO
ALICE TO KINGSVILLE LINE. SOME OF THE STORMS COULD BECOME STRONG
AND PRODUCE WIND GUSTS UP TO 50 MPH AND SMALL HAIL. IN ADDITION...
THE THUNDERSTORMS SOUTH OF A FREER TO KINGVILLE LINE WILL BE
CAPABLE OF PRODUCING HEAVY RAINFALL AND MINOR FLOODING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL INCREASE ACROSS SOUTH
TEXAS THROUGH THURSDAY. WHILE ORGANIZED SEVERE WEATHER IS NOT
EXPECTED AT THIS TIME...THERE WILL BE THE POSSIBILITY OF A FEW
STRONG STORMS THROUGH THURSDAY. SOME OF THESE STORMS MAY CONTAIN
GUSTY WINDS UP TO 50 MPH...SMALL HAIL...FREQUENT LIGHTNING AND VERY
HEAVY RAIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

JR

In the hours before

Local storm report, Apr 12, 10:30 AM CDT, 3 hours 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1030 AM CDT MON APR 12 2010

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

0957 AM     FLOOD            PREMONT                 27.36N 98.12W
04/12/2010                   JIM WELLS          TX   PUBLIC

            REPORT OF STREET FLOODING IN THE TOWN OF PREMONT.

&&

DVOGELSA

Local storm report, Apr 12, 10:48 AM CDT, 3 hours 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
Apr 12, 9:05 AM CDT	Areal Flood Advisory	CRP	Duval, Jim Wells, Kleberg	3 hr
Apr 12, 9:42 AM CDT	Flash Flood Warning	CRP	Jim Wells, Kleberg	3 hr

Nearby

Flash Flood Warnings in Texas, 2010 Every flash flood warning in 2010

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.