Alert archive / Texas / Flash Flood Warnings in 2008

Flash Flood Warning 23, NWS Corpus Christi, TX

August 23, 2008San Patricio County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Aug 23, 2008, 4:00 PM CDT for San Patricio County, Texas. It was in force for 90 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
Aug 23, 2008, 4:00 PM CDT (21:00 UTC)
Expired
Aug 23, 2008, 5:30 PM CDT
In force
90 min
Issued by
NWS Corpus Christi, TX
Area
Storm-based polygon
Flood severity
None

County San Patricio County, TX

The radar

The Corpus Christi radar (KCRP), 25 km from the middle of the area, began a volume at 21:03 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, 9.0 hours before the alert went out and 36 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 12:00Z on 2008-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1884 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 12:00Z on 2008-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
1884 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
721 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Aug 23, 3:38 PM CDT, 22 minutes earlier.

Area forecast discussion, Aug 23, 3:38 PM CDT, 22 minutes before
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Hazardous weather outlook, Aug 23, 4:41 AM CDT, 11 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
441 AM CDT SAT AUG 23 2008

GMZ230-235-250-255-270-275-TXZ229>234-239>247-232200-
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-
441 AM CDT SAT AUG 23 2008

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

.DAY ONE...TODAY AND TONIGHT

NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER PORTIONS OF
THE BRUSH COUNTRY TODAY INTO THIS EVENING. THUNDERSTORMS WILL BE
CAPABLE OF PRODUCING VERY HEAVY RAIN IN A SHORT PERIOD OF TIME. A
FLOOD WATCH IS IN EFFECT FOR THE WESTERN BRUSH COUNTRY THROUGH
THIS AFTERNOON. HEAVY RAINFALL COULD LEAD TO FLOODING OF LOW LYING
AREAS...RIVERS AND CREEKS. RAIN AMOUNTS OF 2 TO 3 INCHES ARE
EXPECTED WITH ISOLATED AMOUNTS OF 5 INCHES POSSIBLE. FREQUENT
LIGHTNING AND GUSTY WINDS WILL BE POSSIBLE WITH THE STRONGER STORMS.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER THE COASTAL
BEND TODAY. HEAVY RAINFALL FROM THESES STORMS COULD PRODUCE RAIN
AMOUNTS OF 1 TO 2 INCHES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED PRECIPITATION WILL BE POSSIBLE SUNDAY ACROSS ALL OF SOUTH
TEXAS AND MONDAY ACROSS THE RIO GRANDE PLAINS. AN ADDITIONAL 1/2 TO
1 INCH OF RAINFALL WILL BE POSSIBLE DURING THIS TIME ACROSS SOUTH
TEXAS...WITH LOCALLY HIGHER AMOUNTS OF 1 TO 2 INCHES.

DRIER CONDITIONS WILL OCCUR TUESDAY. PRECIPITATION CHANCES WILL
INCREASE WEDNESDAY THROUGH FRIDAY ACROSS SOUTH TEXAS AS ANOTHER
UPPER LEVEL DISTURBANCE INTERACTS WITH RETURNING TROPICAL MOISTURE.
THE POTENTIAL FOR HEAVY RAINFALL AND ADDITIONAL LOCALIZED FLOODING
WILL BE POSSIBLE WEDNESDAY THROUGH FRIDAY ACROSS SOUTH TEXAS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED.

TMT/JR

In the hours before

Special weather statement, Aug 23, 1:36 PM CDT, 2 hours 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
136 PM CDT SAT AUG 23 2008

TXZ233-231930-
GOLIAD-
136 PM CDT SAT AUG 23 2008

...A FUNNEL CLOUD WAS SPOTTED OVER GOLIAD COUNTY...

AT 136 PM CDT...THE PUBLIC REPORTED A FUNNEL CLOUD OVER GOLIAD
COUNTY OVER FARM-TO-MARKET ROAD 622...NORTHEAST OF GOLIAD. THIS
FUNNEL WAS ASSOCIATED WITH A THUNDERSTORM 10 MILES WEST OF
FANNIN...OR OVER GOLIAD...MOVING NORTHWEST AT 14 MPH.

IF YOU LIVE IN THE PATH OF THIS STORM...YOU SHOULD BE PREPARED TO
SEEK SHELTER IF THE FUNNEL CLOUD REACHES THE GROUND.

87
Local storm report, Aug 23, 2:01 PM CDT, 1 hour 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
201 PM CDT SAT AUG 23 2008

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

1100 AM     FLASH FLOOD      LAREDO                  27.53N 99.49W
08/23/2008                   WEBB               TX   LAW ENFORCEMENT

            LAREDO P.D. REPORTED FLOODING IN THE CITY OF LAREDO. THE
            INTERSECTIONS OF CLARK BLVD AND CEDAR AVE...MCPHERSON AVE
            AND JACAMAN RD...AND LAS CRUCES DR AND MINES RD HAVE BEEN
            CLOSED.

&&

RG
Local storm report, Aug 23, 2:06 PM CDT, 1 hour 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
206 PM CDT SAT AUG 23 2008

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

1235 PM     FLASH FLOOD      LAREDO                  27.53N 99.49W
08/23/2008                   WEBB               TX   PUBLIC

            CITIZENS TRAVELING ON HWY 359 IN THE LAREDO CITY LIMITS
            REPORTED FLOODED ROADS.

&&

KRR
Special weather statement, Aug 23, 2:20 PM CDT, 1 hour 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
220 PM CDT SAT AUG 23 2008

TXZ246-232000-
REFUGIO-
220 PM CDT SAT AUG 23 2008

...A FUNNEL CLOUD WAS SPOTTED OVER REFUGIO COUNTY...

AT 220 PM CDT...LAW ENFORCEMENT OFFICIALS REPORTED A FUNNEL CLOUD
OVER REFUGIO COUNTY ALONG US ROUTE 77 NORTH OF REFUGIO. THIS FUNNEL
WAS ASSOCIATED WITH A THUNDERSTORM LOCATED 15 MILES SOUTHWEST OF
MCFADDIN...OR 7 MILES NORTHEAST OF REFUGIO...MOVING NORTHWEST AT 8
MPH.

IF YOU LIVE IN THE PATH OF THIS STORM...YOU SHOULD BE PREPARED TO
SEEK SHELTER IF THE FUNNEL CLOUD REACHES THE GROUND.

87
Special weather statement, Aug 23, 2:42 PM CDT, 1 hour 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
242 PM CDT SAT AUG 23 2008

TXZ240-232045-
DUVAL-
242 PM CDT SAT AUG 23 2008

...A STRONG THUNDERSTORM WAS AFFECTING DUVAL COUNTY...

AT 237 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 8 MILES SOUTH OF BENAVIDES...MOVING NORTHWEST AT
7 MPH.

RESIDENTS IN THE PATH OF THIS STORM CAN EXPECT WINDS 30 TO 40
MPH...VERY HEAVY RAINFALL AND DANGEROUS CLOUD TO GROUND LIGHTNING
STRIKES.

KRR
Special weather statement, Aug 23, 3:17 PM CDT, 43 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 10:11 PM CDTFlood WatchCRPLa Salle, Webb19 hr
Aug 23, 7:21 AM CDTFlash Flood WarningCRPWebb114 min
Aug 23, 10:02 AM CDTAreal Flood AdvisoryCRPWebb118 min
Aug 23, 11:51 AM CDTFlash Flood WarningCRPWebb54 min
Aug 23, 1:57 PM CDTFlash Flood WarningCRPWebb93 min
Aug 23, 2:15 PM CDTFlash Flood WarningCRPLa Salle90 min
Aug 23, 2:56 PM CDTFlash Flood WarningCRPDuval79 min
Aug 23, 3:22 PM CDTSevere Thunderstorm WarningCRPSan Patricio33 min
Aug 23, 5:09 PM CDTFlood WatchCRPLa Salle, Webb17 hr

Nearby

Flash Flood Warnings in Texas, 2008Every flash flood warning in 2008

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.