Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 11, NWS Corpus Christi, TX

September 2, 2003Victoria County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Sep 2, 2003, 1:58 PM CDT for Victoria County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 2, 2003, 1:58 PM CDT (18:58 UTC)
Expired: Sep 2, 2003, 5:00 PM CDT
In force: 3 hr
Issued by: NWS Corpus Christi, TX
Area: Counties, with a storm outline in the text

County Victoria County, TX

The radar

The Austin/San Antonio radar (KEWX), 131 km from the middle of the area, began a volume at 18:59 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 7.0 hours before the alert went out and 137 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: 2255 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 543 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: -9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KCRP 021900
FFWCRP
TXC469-022200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
158 PM CDT TUE SEP 2 2003

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL VICTORIA COUNTY IN TEXAS

* UNTIL 500 PM CDT

* AT 151 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  AN AREA OF THUNDERSTORMS WITH VERY HEAVY RAIN APPROXIMATELY 5 
  MILES NORTH OF VICTORIA.  THE THUNDERSTORMS HAVE REMAINED 
  STATIONARY DURING THE PAST HOUR.  DOPPLER RADAR ESTIMATED 
  NEARLY 2 INCHES OF RAIN WITH AN ADDITIONAL 1 TO 2 INCHES OF RAIN 
  POSSIBLE OVER THE NEXT HOUR.   

* SOME LOCATIONS AFFECTED INCLUDE...
  HIGHWAY 77 NORTH OF VICTORIA

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

LAT...LON 2886 9713 2885 9687 2902 9688 2906 9701

$$

AP

1 follow-up statement

000 
WGUS74 KCRP 022010
FFSCRP
TXC469-022045-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
310 PM CDT TUE SEP 2 2003

...THE FLASH FLOOD WARNING FOR NORTHERN VICTORIA COUNTY HAS BEEN
CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL WAS ENDING
ACROSS THE WARNED AREA...AND THE FLOOD THREAT WAS DIMINISHING. SOME
MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING IS
ENDING. THUS...THE FLASH FLOOD WARNING IS BEING CANCELLED.

TO REPORT FLOODING HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR
REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN CORPUS
CHRISTI.

LAT...LON 2902 9685 2886 9676 2888 9728 2903 9707
          2909 9698

$$

TR

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 2, 10:15 AM CDT, 3 hours 43 minutes earlier.

Area forecast discussion, Sep 2, 10:15 AM CDT, 3 hours 43 minutes before

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1015 AM CDT TUE SEP 2 2003

VERY MOIST ENVIRONMENT NOTED THIS MORNING ESPECIALLY OVER EASTERN
PARTS OF FORECAST AREA WHERE 1200 UTC CRP SOUNDING SHOWS PWATS
AROUND 2.4 INCHES.  1500 UTC RADAR MOSAIC SHOWS SOME DECREASE IN
COVERAGE ALTHOUGH RAINFALL IS BEGINNING TO APPROACH 2 INCHES OVER NW
LIVE OAK COUNTY.  WILL CONTEMPLATE FLASH FLOOD WATCH OVER NORTHERN
CWA FOR AFTERNOON ISSUANCE.  FOR MORNING UPDATE...WILL DECREASE POPS
AND RAISE TEMPS SOME OVER SOUTHERN ZONES.  WILL KEEP LIKELY POPS
NEAR VICTORIA CROSSROADS AREA AS WELL BUT WILL TRIM FURTHER WEST.
ONLY MINOR CHANGES PLANNED FOR THE REST OF TODAY OVER MARINE
AREAS.

.CRP...NONE.

72/AP...SHORT TERM

Hazardous weather outlook, Sep 2, 4:20 AM CDT, 9 hours 38 minutes before

GMZ230-235-250-255-270-275-TXZ229>234-239>247-031100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
420 AM CDT TUE SEP 2 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS.

.DAY ONE...TODAY AND TONIGHT

TROPICAL MOISTURE AND AN UNSTABLE ATMOSPHERE WILL PREVAIL. A WEAK
SURFACE BOUNDARY AND A WEAK UPPER-LEVEL DISTURBANCE WILL GENERATE
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS TODAY. THE SHOWERS
AND THUNDERSTORMS AND POSSIBILITY FOR FLASH FLOODING WILL BE
GREATEST OVER THE COASTAL BEND. LOCALIZED RAINFALL AMOUNTS WILL
RANGE BETWEEN 1 AND 3 INCHES. A CHANCE OF SHOWERS AND THUNDERSTORMS
WILL EXIST TONIGHT...ESPECIALLY THE COASTAL COMMUNITIES. ANY STORM
TODAY AND TONIGHT WILL ALSO BE CAPABLE OF PRODUCING WIND GUSTS TO 25
MPH AND OCCASIONAL CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

COPIOUS MOISTURE WILL CONTRIBUTE TO SCATTERED SHOWERS AND
THUNDERSTORMS ACROSS THE REGION WEDNESDAY. A FRONT WILL MOVE ACROSS
THE REGION THURSDAY. SCATTERED SHOWERS AND THUNDERSTORMS WILL
DEVELOP NEAR AND ALONG THE FRONT. THE MAIN THREAT FROM SHOWERS AND
THUNDERSTORMS WILL BE LOCALLY HEAVY RAINFALL. DRIER AIR BEHIND THE
FRONT WILL PRECLUDE PRECIPITATION FRIDAY THROUGH MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED...HOWEVER SPOTTERS ARE ASKED
TO REPORT ANY EXCESSIVE RAINFALL AMOUNTS OR FLOODING SHOULD THEY
OCCUR IN YOUR AREA.

BB/WC

Nearby

Flash Flood Warnings in Texas, 2003 Every flash flood warning in 2003

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.