Alert archive / Texas / Flash Flood Warnings in 1997

Flash Flood Warning 54, NWS Corpus Christi, TX

June 21, 1997McMullen County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Jun 21, 1997, 7:43 PM CDT for McMullen County, Texas. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 21, 1997, 7:43 PM CDT (00:43 UTC)
Expired: Jun 21, 1997, 9:45 PM CDT
In force: 2 hr
Issued by: NWS Corpus Christi, TX
Area: Whole counties

County McMullen County, TX

The radar

The Corpus Christi radar (KCRP), 122 km from the middle of the area, began a volume at 00:44 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, 0.7 hours before the alert went out and 139 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: 2132 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1200 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Jun 21, 2:00 PM CDT, 5 hours 43 minutes earlier.

Area forecast discussion, Jun 21, 2:00 PM CDT, 5 hours 43 minutes before

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
200 PM CDT SAT JUN 21 1997

DISCUSSION...VIS SATELLITE IMAGERY DEPICTING THE CONCENTRATED AREA OF
MOISTURE ACROSS S AND SCNTRL TX ASSOCIATED WITH THE H5 LOW AND VORT
AXIS WHICH WL REMAIN QSTNRY THROUGH THE FCST CYCLE.

KCRP-88D REF DATA INDICATING SHRA/TSRA ACTIVITY ACROSS THE NRN
COUNTIES AS WELL AS OVR DEEP SOUTH TEXAS.  AREAL COVERAGE IS FCST TO
INCREASE AND OVERSPREAD THE CWA THROUGHOUT THE AFTN AND TONIGHT AS
SFC MOISTURE CNVGNC INCREASES WITH THE MAXIMUM PCPN POTENTIAL ALONG
THE H8 40-50 KT JET STREAK ACROSS THE SOUTH TEXAS COASTLINE WHERE
THERMODYNAMICS ADVECT ACROSS THE REGION NWD INTO SCNTRL TX.

12Z ETA MODEL ANALYSIS INDICATES STG THETA-E WARMING ACROSS THE ERN
HALF OF THE CWA ALONG THE H8 JET MAX WHERE PWAT VALUES POOL TO NEAR
2.2 INCHES.  WL ISSUE A FLASH FLOOD WATCH FOR THE ENTIRE FA AS FFG
REMAINS LOW (AVG 1-INCH FOR 1HR RAFL).  HVY RAFL POTENTIAL WL EXIST
THROUGH SUNDAY AND INTO MONDAY AS MID-UPR LVL DIFFLUENCE PREVAILS
ABOVE THE FAVORABLE LLVL DYNAMICS.  ISOLATED/EMBEDDED SVR IS
POSSIBLE...HOWEVER WL EMPHASIZE THE THREAT FOR HVY RAFL IN THE
UPCOMING FCST PACKAGE.

AN UPDATED FLASH FLOOD WATCH AND A HEAVY RAFL OUTLOOK WIBIS.

MARINE:  SLY FLOW 20 KTS .. SEAS 5-6 FEET.  SCA IN EFFECT.  SMW WIBIS
FROM BAFFIN BAY-CC BAY AS VEL DATA SHOWING 50KT WIND AT 2K FT.

WRK ZONES BLO...
-----------------------
.TONIGHT...MOSTLY CLOUDY WITH A % CHC OF SHRA/TSRA.  LOCALLY HEAVY
RAFL IS POSSIBLE.  SE WIND AT 20 TO 30 MPH AND GUSTY THIS EVENING
THEN DECRG TO 15 TO 25 MPH LATER TONIGHT.
.SUNDAY...MOSTLY CLOUDY AND CONTINUED WINDY WITH A % CHC OF
SHRA/TSRA.  HEAVY RAFL IS POSSIBLE.  S-SE WIND INCRG TO 20 TO 30 MPH
AND GUSTY.
.SUNDAY NIGHT...MOSTLY CLOUDY WITH A % CHC OF SHRA/TSRA.
.MONDAY...CONTINUED MOSTLY CLOUDY AND BREEZY WITH A % CHC OF
SHRA/TSRA.
-----------------------

THE FORECAST NUMBERS ARE NEXT...

CRP EE 079/088 077/089 075 5754
NGP    079/087 078/088 077
VCT EE 077/086 075/087 075 6854
LRD EE 076/090 076/096 075 4644

BML...76

In the hours before

Special weather statement, Jun 21, 2:25 PM CDT, 5 hours 18 minutes before

TXZ229-230-231-232-233-234-239-240-241-242-243-244-245-246-247-
220030-

HEAVY RAINFALL OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
225 PM CDT SAT JUN 21 1997

LOCALLY HEAVY RAINFALL IS POSSIBLE TONIGHT AND SUNDAY OVER
MUCH OF SOUTH TEXAS. THE GREATEST POTENTIAL OF HEAVY RAIN
IS ALONG A LINE FROM VICTORIA TO REFUGIO TO CORPUS CHRISTI
TO KINGSVILLE.  A FLASH FLOOD WATCH IS IN EFFECT FOR TONIGHT
FOR MOST OF SOUTH TEXAS.

AN UPPER LEVEL LOW PRESSURE SYSTEM LOCATED IN SOUTH TEXAS
COMBINED WITH ABUNDANT MOISTURE FROM THE GULF OF MEXICO AND
CONTINUED INSTABILITY IN THE ATMOSPHERE WILL RESULT IN
SCATTERED SHOWERS AND THUNDERSTORMS THROUGH SUNDAY.  THIS
ACTIVITY WILL BE PRIMARILY IN THE COASTAL BEND AND VICTORIA
AREAS THIS AFTERNOON AND WILL SPREAD TO THE RIO GRANDE PLAINS
AREA LATER THIS EVENING.

SHOWERS AND THUNDERSTORMS ARE CURRENTLY LOCATED FROM GOLIAD
TO NORTH OF VICTORIA TO JUST SOUTHWEST OF HOUSTON.  OTHER
ACTIVITY WAS LOCATED FROM BAFFIN BAY TO BROWNSVILLE.  MOST
OF THIS ACTIVITY WAS MOVING NORTH AND NORTHEAST AT 20 TO 25
MPH.  THE POTENTIAL FOR HEAVY RAIN FROM THESE STORMS COMBINED
WITH ALREADY SATURATED SOIL COULD RESULT IN FLASH FLOODING
TONIGHT AND SUNDAY...THEREFORE A FLASH FLOOD WATCH WILL BE
IN EFFECT.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

Special weather statement, Jun 21, 2:28 PM CDT, 5 hours 15 minutes before

TXZ229-230-231-232-233-234-239-240-241-242-243-244-245-246-247-
220030-

HEAVY RAINFALL OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
225 PM CDT SAT JUN 21 1997

LOCALLY HEAVY RAINFALL IS POSSIBLE TONIGHT AND SUNDAY OVER
MUCH OF SOUTH TEXAS. THE GREATEST POTENTIAL OF HEAVY RAIN
IS ALONG A LINE FROM VICTORIA TO REFUGIO TO CORPUS CHRISTI
TO KINGSVILLE.  A FLASH FLOOD WATCH IS IN EFFECT FOR TONIGHT
FOR MOST OF SOUTH TEXAS.

AN UPPER LEVEL LOW PRESSURE SYSTEM LOCATED IN SOUTH TEXAS
COMBINED WITH ABUNDANT MOISTURE FROM THE GULF OF MEXICO AND
CONTINUED INSTABILITY IN THE ATMOSPHERE WILL RESULT IN
SCATTERED SHOWERS AND THUNDERSTORMS THROUGH SUNDAY.  THIS
ACTIVITY WILL BE PRIMARILY IN THE COASTAL BEND AND VICTORIA
AREAS THIS AFTERNOON AND WILL SPREAD TO THE RIO GRANDE PLAINS
AREA LATER THIS EVENING.

SHOWERS AND THUNDERSTORMS ARE CURRENTLY LOCATED FROM GOLIAD
TO NORTH OF VICTORIA TO JUST SOUTHWEST OF HOUSTON.  OTHER
ACTIVITY WAS LOCATED FROM BAFFIN BAY TO BROWNSVILLE.  MOST
OF THIS ACTIVITY WAS MOVING NORTH AND NORTHEAST AT 20 TO 25
MPH.  THE POTENTIAL FOR HEAVY RAIN FROM THESE STORMS COMBINED
WITH ALREADY SATURATED SOIL COULD RESULT IN FLASH FLOODING
TONIGHT AND SUNDAY...THEREFORE A FLASH FLOOD WATCH WILL BE
IN EFFECT.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

Local storm report, Jun 21, 7:00 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
700 PM CDT SAT JUN 21 1997

TIME(CDT)  .....CITY LOCATION.....STATE...EVENT/REMARKS...
           ....COUNTY LOCATION....

0400 PM    10 N GOLIAD               TX   FLOODING
06/21/97   GOLIAD                         SHERIFF REPORT OF NUMEROUS
                                          ROADWAYS UNDER WATER ALONG
                                          U.S. HIGHWAY 183 NORTH.

0438 PM    2 N VICTORIA              TX   FLOODING
06/21/97   VICTORIA                       SHERIFF REPORT OF NUMEROUS
                                          ROADWAYS UNDER WATER ALONG
                                          U.S. HIGHWAY 77 NORTH WHERE
                                          OFFICERS HAVE CLOSED ROADS.

0527 PM    6 N THREE RIVERS          TX   FLOODING
06/21/97   LIVE OAK                       SHERIFF REPORT OF FLOODING
                                          ALONG HIGHWAY 281 PARALLEL
                                          TO INTERSTATE 37.

LAMARRE

Local storm report, Jun 21, 7:01 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
700 PM CDT SAT JUN 21 1997

TIME(CDT)  .....CITY LOCATION.....STATE...EVENT/REMARKS...
           ....COUNTY LOCATION....

0400 PM    10 N GOLIAD               TX   FLOODING
06/21/97   GOLIAD                         SHERIFF REPORT OF NUMEROUS
                                          ROADWAYS UNDER WATER ALONG
                                          U.S. HIGHWAY 183 NORTH.

0438 PM    2 N VICTORIA              TX   FLOODING
06/21/97   VICTORIA                       SHERIFF REPORT OF NUMEROUS
                                          ROADWAYS UNDER WATER ALONG
                                          U.S. HIGHWAY 77 NORTH WHERE
                                          OFFICERS HAVE CLOSED ROADS.

0527 PM    6 N THREE RIVERS          TX   FLOODING
06/21/97   LIVE OAK                       SHERIFF REPORT OF FLOODING
                                          ALXONG HIGHWAY 281 PARALLEL
                                          TO INTERSTATE 37.

LAMARRE

Local storm report, Jun 21, 7:30 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
730 PM CDT SAT JUN 21 1997

TIME(CDT)  .....CITY LOCATION.....STATE...EVENT/REMARKS...
           ....COUNTY LOCATION....

0654 PM    6 S THREE RIVERS          TX   60 MPH WIND GUST
06/21/97   LIVE OAK                       SHERIFF REPORT OF STRONG
                                          THUNDERSTORM WIND WHILE ON
                                          APPROACH TO GEORGE WEST TO
                                          INVESTIGATE A TORNADO
                                          REPORT AND WAS FORCED TO
                                          RETURN AWAY FROM THE STORM
                                          DUE TO THE WIND.

0715 PM    14 S TILDEN               TX   60 MPH WIND GUST
06/21/97   MCMULLEN                       NWS SPOTTER REPORT OF
                                          STRONG THUNDERSTORM WIND
                                          WITH NUMEROUS TREES BLOWN
                                          OVER.

LAMARRE

Local storm report, Jun 21, 7:32 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
730 PM CDT SAT JUN 21 1997

TIME(CDT)  .....CITY LOCATION.....STATE...EVENT/REMARKS...
           ....COUNTY LOCATION....

0654 PM    6 S THREE RIVERS          TX   60 MPH WIND GUST
06/21/97   LIVE OAK                       SHERIFF REPORT OF STRONG
                                          THUNDERSTORM WIND WHILE ON
                                          APPROACH TO GEORGE WEST TO
                                          INVESTIGATE A TORNADO
                                          REPORT AND WAS FORCED TO
                                          RETURN AWAY FROM THE STORM
                                          DUE TO THE WIND.

0715 PM    14 S TILDEN               TX   60 MPH WIND GUST
06/21/97   MCMULLEN                       NWS SPOTTER REPORT OF
                                          STRONG THUNDERSTORM WIND
                                          WITH NUMEROUS TREES BLOWN
                                          OVER.

LAMARRE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 7:31 PM CDT	Severe Thunderstorm Warning	CRP	Bee, Live Oak	59 min
Jun 21, 8:05 PM CDT	Severe Thunderstorm Warning	CRP	Duval	55 min
Jun 21, 8:50 PM CDT	Severe Thunderstorm Warning	CRP	Jim Wells	70 min
Jun 21, 9:36 PM CDT	Severe Thunderstorm Warning	CRP	Nueces, San Patricio	69 min
Jun 22, 12:36 AM CDT	Flash Flood Warning	CRP	Nueces, San Patricio	3 hr

Nearby

Flash Flood Warnings in Texas, 1997 Every flash flood warning in 1997

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.