Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 24, NWS Corpus Christi, TX

July 14, 2002McMullen County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Jul 14, 2002, 9:22 PM CDT for McMullen County, Texas. It was in force for 113 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 14, 2002, 9:22 PM CDT (02:22 UTC)
Expired: Jul 14, 2002, 11:15 PM CDT
In force: 113 min
Issued by: NWS Corpus Christi, TX
Area: Counties, with a storm outline in the text

County McMullen County, TX

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 00:00Z, 2.4 hours before the alert went out and 149 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: 2181 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1136 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 6 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 150222
FFWCRP
TXC311-150415-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
925 PM CDT SUN JUL 14 2002

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN MCMULLEN COUNTY IN TEXAS

* UNTIL 1115 PM CDT

* AT 925 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN 5 MILES NORTHWEST OF TILDEN.  THE AREA OF HEAVY    
  RAIN WAS SLOWLY MOVING NORTH AT 5 MPH.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL 
CREEKS AND STREAMS. 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 2833 9879 2835 9835 2863 9837 2863 9881

1 follow-up statement

000 
WGUS74 KCRP 150403
FFSCRP
TXC311-150415-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1100 PM CDT SUN JUL 14 2002

...FLASH FLOOD WARNING CONTINUES FOR NORTHERN MCMULLEN COUNTY THROUGH
1115 PM...

A SLOW MOVING AREA OF SHOWERS AND THUNDERSTORMS WILL CONTINUE
TO AFFECT MCMULLEN COUNTY TONIGHT.  THE MAIN AREA OF RAINFALL
IS LOCATED NEAR TILDEN.  ADDITIONAL THUNDERSTORMS WILL OVERSPREAD THE
REMAINDER OF THE COUNTY TONIGHT...AND THE FLASH FLOOD WARNING
WILL LIKELY BE EXTENDED.

RAINFALL TOTALS WILL AVERAGE AROUND 3 INCHES...WITH 4 TO 6 INCHES
POSSIBLE IN THE HEAVIER DOWNPOURS.  DO NOT DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO
GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING
WATER SHOULD BE ABANDONED QUICKLY.

STAY TUNED TO THE NATIONAL WEATHER SERVICE FOR THE LATEST WEATHER
INFORMATION OR POSSIBLE WARNINGS.

$$

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 Jul 14, 2:15 PM CDT, 7 hours 7 minutes earlier.

Area forecast discussion, Jul 14, 2:15 PM CDT, 7 hours 7 minutes before

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
215 PM CDT SUN JUL 14 2002

ETA NOW MORE IN LINE WITH AVN...BRINGING 2+INCH PWATS ACROSS ALL OF
CWA FROM THE SOUTH. UPPER LEV TROF AXIS WILL DRAW MOISTURE FROM
PAC...WHILE MID/LOW LEVELS WILL BECOME INCREASINGLY S DRAWING
MOISTURE FROM MEX/S GULF. MODELS SHOW AN INCREASE TO 2
INCHES...MAINLY W AND NW CWA THIS EVENING (RADAR ALREADY SHOWING
DEVELOPMENT IN WEBB CO)...WITH THE POOL OF MOISTURE SHIFTING NW
OVERNIGHT. THEN ANOTHER MUCH LARGER AREA OF ABUNDANT MOIST ON MON.
NE CWA ALSO LOOKS GOOD FOR CHANCE OF RAIN TONIGHT...AS THAT AREA IS
CLOSER TO RRQ OF JET...MSAS ANALYSIS HAS GOOD THETA-E RIDGING...LIS
AND MOISTURE CONVERGE...WHICH SHOULD ALLOW CONVECTION TO THE N TO
SINK SWD INTO N CWA.

THUS...FFA LOOKS GOOD BEGINNING TONIGHT FOR N AND W CWA THEN ALL
AREAS MON. WILL ISSUE FFA WITH AFTERNOON PACKAGE...HEADLINING FFA
TONIGHT N AND W AND FFA MON SE CWA.

MODELS KEEP ABUNDANT MOIST AND UPPER TROF AXIS ACROSS THE REGION
THROUGH MON NIGHT AND TUE MORNING...ETA BEING MORE AGRESSIVE WITH
WETTER SCENARIO ON TUE...BEFORE UPPER TROF SHIFTS FARTHER N OF CWA
AND UPPER RIDGE/DRIER AIRMASS BEGINS TO BUILD ACROSS THE REGION.

IN ADDITION TO ABUNDANT MOISTURE AND VCNTY OF UPPER TROF...AREA WILL
BE UNDER INFLUENCE OF RRQ OF JET/OPTIMAL DIFFLUENCE
ALOFT...RESULTING IN POSSIBLE ISOL SVR...ALTHOUGH HVY
RAINFALL/FLOODING WILL BE MAIN THREAT.

BY THU...LATEST AVN RUN TAKES A TROP WAVE OVER BAY OF CAMPECHE INTO
MEX...WELL S OF TX. RIDGE WILL CONT TO KEEP LITTLE TO NO PRECIP THRU
NEXT WEEKEND WITH TEMPS NEAR CLIMO.

MARINE...SFC RIDGE OVER NORTH CENTRAL GULF COMBINED WITH LOW
PRESSURE ALONG THE RIO GRANDE WILL RESULT IN INCREASING WINDS AND
PRECIP OVER THE TX COASTAL WATERS THROUGH TUE. EXPECT SCEC
CONDITIONS TONIGHT AND MONDAY AND SCA CONDITIONS MONDAY NIGHT AND
TUESDAY. WINDS DIMINISH TUESDAY NIGHT AS THE LOW IN TX WEAKENS.
ATMOS DRIES OUT WED-FRI AS HIGH PRESSURE BUILDS OVER THE WRN
GULF...STEARING ELY WAVES WELL TO OUR SOUTH INTO MX.

PRELIMS FOLLOW...
CRP TE 077/088 078/089 077 36552
VCT TE 075/087 077/088 076 57552
LRD TE 078/090 078/091 078 57552

TE...81
JM...75

.CRP...FFA TXZ229>234-239>247 .

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 11:14 PM CDT	Flash Flood Warning	CRP	McMullen	2 hr
Jul 15, 1:04 AM CDT	Severe Thunderstorm Warning	CRP	Live Oak	41 min
Jul 15, 1:04 AM CDT	Severe Thunderstorm Warning	CRP	Jim Wells, Nueces	21 days
Jul 15, 1:15 AM CDT	Tornado Warning	CRP	Live Oak	45 min
Jul 15, 1:24 AM CDT	Flash Flood Warning	CRP	Live Oak, McMullen	3 hr
Jul 15, 3:33 AM CDT	Flash Flood Warning	CRP	Bee, Live Oak	3 hr
Jul 15, 3:57 AM CDT	Flash Flood Warning	CRP	Duval, Jim Wells, Webb	3 hr
Jul 15, 4:20 AM CDT	Flash Flood Warning	CRP	McMullen	115 min
Jul 15, 6:00 AM CDT	Flash Flood Warning	CRP	Victoria	3 hr
Jul 15, 6:31 AM CDT	Flash Flood Warning	CRP	Live Oak	3 hr
Jul 15, 6:47 AM CDT	Flash Flood Warning	CRP	Duval, Webb	3 hr
Jul 15, 9:48 AM CDT	Flash Flood Warning	CRP	La Salle, McMullen	3 hr
Jul 15, 1:10 PM CDT	Special Marine Warning	CRP		2 hr
Jul 15, 1:10 PM CDT	Special Marine Warning	CRP		2 hr
Jul 15, 1:50 PM CDT	Flash Flood Warning	CRP	La Salle	3 hr
Jul 15, 3:52 PM CDT	Flash Flood Warning	CRP	Duval	3 hr
Jul 15, 4:57 PM CDT	Flash Flood Warning	CRP	McMullen	3 hr

Nearby

Flash Flood Warnings in Texas, 2002 Every flash flood warning in 2002

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.