Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 30, NWS Corpus Christi, TX

October 6, 1998Aransas County, Calhoun County, Refugio County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Oct 6, 1998, 7:07 AM CDT for Aransas County, Calhoun County, Refugio 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 counties it named.

The facts

Issued
Oct 6, 1998, 7:07 AM CDT (12:07 UTC)
Expired
Oct 6, 1998, 10:10 AM CDT
In force
3 hr
Issued by
NWS Corpus Christi, TX
Area
Whole counties

Counties Aransas County, TX, Calhoun County, TX, Refugio County, TX

The radar

The Corpus Christi radar (KCRP), 76 km from the middle of the area, began a volume at 12:11 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, 0.1 hours before the alert went out and 70 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 1998-10-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4460 joules per kilogram.LCLEL10008507005003002001001 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 1998-10-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.193958Sfc1 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
4460 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
519 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
3.6
Supercell composite
19.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCRP 061207
FFWCRP
TXC007-057-391-061510-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
707 AM CDT TUE OCT 6 1998

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  REFUGIO IN SOUTH CENTRAL TEXAS
  ARANSAS IN SOUTH CENTRAL TEXAS
  CALHOUN IN SOUTH CENTRAL TEXAS

* UNTIL 1010 AM CDT

* AT 7 AM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF STRONG THUNDERSTORMS WITH HEAVY RAINFALL FROM NEAR
  ROCKPORT TO PORT ARANSAS...MOVING SOUTHEAST AT 25 MPH.

  ADDITIONAL RAINFALL AMOUNTS OF 4 OR MORE INCHES ARE POSSIBLE
  THROUGH 930 AM.  RAINFALL RATES OF 2 TO 3 INCHES AN HOUR WILL
  OCCUR THROUGH 8 AM.4

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

GW

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 Oct 6, 2:25 AM CDT, 4 hours 42 minutes earlier.

Area forecast discussion, Oct 6, 2:25 AM CDT, 4 hours 42 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
225 AM CDT TUE OCT 6 1998

...SUGGEST ADDING FLOOD WATCH TODAY FOR GOLIAD-VICTORIA-CALHOUN-
ARANSAS AND REFUGIO COUNTIES...

AS OF 6Z...FNTL BNDY LOCATED FM NEAR SAT-HDO LN AND SOUTH OF DRT.
GOOD MSTR CONVERGENCE AND LIFT WITH SYSTEM...AND HIGH PRECIP
WATER VALUES.  BEST CHANCE FOR TRAIN-ECHOING OVER ERN/NERN
COUNTIES TDA WHICH SHOULD WARRANT FFA ESPECIALLY SINCE MSTR/HI
THTE VALUES PRESENT THERE.  ELSEWHERE MENTION OF LOCALLY HEAVY
RAIN APRS TO BE WELL-TAKEN BUT ATTM SHOULD HOLD BACK ON WATCH
THERE. WITH GOOD LIFTING AND NEAR SFC WIND FEEDING MSTR IN...SEE
NO REASON WHY ACTIVITY FURTHER N SHOULD NOT COME INTO AREA.
ERGO...HAVE PRETTY MUCH GONE CATAGORICAL POPS...MAINLY THIS AM
THOUGH ACTIVITY COULD WELL LINGER OVER N AND E SECTS.

HAVE MADE BEST GUESS ON HIGHS TDA...OBVIOUSLY HIGHS WILL BE
REACHED BFR FROPA AND SOME NRN SECTS LIKELY HAVE THEIR AFTN HI AT
SYNOPTIC TIME.

TNGT...RAIN MAY LINGER ESPECIALLY ARND COAST AND AVN KEEPS MSTR
ARND A LTL LONGER THAN NGM/ETA.  BELIEVE LATTER SOLN MORE
PLAUSIBLE AS PER STLT/OBS DATA ESPECIALLY SINCE INFLUENCES OF
UPPER LOW SHOULD BE NORTH AND EAST OF AREA.  THUS...BELIEVE
CLOUDS SHOULD BE ON DECREASE TMRW AND NO MENTION OF PCPN.

PRELIMS...
CRP TB 083/062 082/060 084 831-
NGP    085/067 083/065 084
ALI    083/060 082/059 086
LRD TB 082/058 080/057 083 72--
VCT TB 078/058 080/057 083 831-

WORK ZONE FORECAST...USE AT YOUR DISCRETION AND MAY WANT TO
                     TWEEK TDAS HIGHS IF SEE FIT.
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
400 AM CDT TUE OCT 6 1998

TXZ233-234-062200-
GOLIAD-VICTORIA-
400 AM CDT TUE OCT 6 1998

...FLOOD AND FLASH FLOOD WATCH IN EFFECT TODAY...
.TODAY...OCCASIONAL RAIN AND THUNDERSTORMS...MAINLY THIS MORNING.
LOCALLY HEAVY RAINFALL POSSIBLE.  CLOUDY...BREEZY AND TURNING
COOLER.  HIGH IN THE UPPER 70S WITH TEMPERATURES FALLING INTO THE
60S DURING THE DAY. NORTH WIND 15 TO 20 MPH.  RAIN CHANCE IS 80
PERCENT.
.TONIGHT...MOSTLY CLOUDY AND COOLER WITH A 30 PERCENT CHANCE OF
RAIN OR THUNDERSTORMS.  LOW AROUND 60.  NORTH WIND 10 TO 15 MPH.
.WEDNESDAY...DECREASING CLOUDS.  HIGH AROUND 80. NORTH WIND NEAR
15 MPH.

TXZ229>232-062200-
BEE-LASALLE-LIVE OAK-MCMULLEN-
400 AM CDT TUE OCT 6 1998

.TODAY...OCCASIONAL RAIN AND THUNDERSTORMS...MAINLY THIS MORNING.
LOCALLY HEAVY RAINFALL IS POSSIBLE.  CLOUDY...BREEZY AND COOLER.
TEMPERATURES REMAINING STEADY OR FALLING TO AROUND 60. NORTH
WIND 15 TO 20 MPH. RAIN CHANCE IS 90 PERCENT.
.TONIGHT...MOSTLY CLOUDY AND COOLER WITH A 20 PERCENT CHANCE OF
RAIN.  LOW AROUND 60.  NORTH WIND 10 TO 15 MPH.
.WEDNESDAY...MOSTLY SUNNY.  HIGH AROUND 80. NORTH WIND NEAR 10
MPH.

TXZ239-240-062200-
DUVAL-WEBB-
400 AM CDT TUE OCT 6 1998

.TODAY...RAIN AND THUNDERSTORMS LIKELY...MAINLY THIS MORNING.
LOCALLY HEAVY RAINFALL IS POSSIBLE.  CLOUDY...BREEZY AND TURNING
COOLER. HIGH IN THE LOWER 80S WITH TEMPERATURES REMAINING
STEADY OR FALLING DURING THE DAY. WIND BECOMING NORTH 15 TO 20
MPH. RAIN CHANCE IS 70 PERCENT.
.TONIGHT...MOSTLY CLOUDY AND COOLER WITH A 20 PERCENT CHANCE OF
RAIN.  LOW AROUND 60.  NORTH WIND NEAR 10 MPH.
.WEDNESDAY...MOSTLY SUNNY.  HIGH AROUND 80. NORTH WIND NEAR 10
MPH.

TXZ245>247-062200-
ARANSAS-CALHOUN-REFUGIO-
400 AM CDT TUE OCT 6 1998

...FLOOD AND FLASH FLOOD WATCH IN EFFECT TODAY...
.TODAY...OCCASIONAL RAIN AND THUNDERSTORMS.  LOCALLY HEAVY
RAINFALL IS POSSIBLE.  CLOUDY...BREEZY AND TURNING COOLER. HIGH
IN THE LOWER 80S WITH TEMPERATURES REMAINING STEADY OR FALLING
INTO THE 60S. SOUTHEAST WIND 15 TO 20 MPH...BECOMING NORTH BY
NOON. RAIN CHANCE IS 80 PERCENT.
.TONIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN OR
THUNDERSTORMS.  LOWS FROM THE MID 60S COAST TO AROUND 60 INLAND.
NORTH WIND NEAR 15 MPH.
.WEDNESDAY...DECREASING CLOUDS.  HIGHS IN THE LOWER 80S.  NORTH
WIND NEAR 15 MPH.

TXZ241>244-062200-
JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-
400 AM CDT TUE OCT 6 1998

.TODAY...OCCASIONAL RAIN AND THUNDERSTORMS...MAINLY THIS MORNING.
LOCALLY HEAVY RAINFALL IS POSSIBLE.  CLOUDY...BREEZY AND TURNING
COOLER. HIGH IN THE LOWER TO MID 80S WITH TEMPERATURES REMAINING
STEADY OR FALLING TO AROUND 70. SOUTHEAST WIND 15 TO 20 MPH...
BECOMING NORTH BY NOON. RAIN CHANCE IS 80 PERCENT.
.TONIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN OR
THUNDERSTORMS.  LOWS FROM THE MID 60S COAST TO AROUND 60 INLAND.
NORTH WIND NEAR 15 MPH.
.WEDNESDAY...DECREASING CLOUDS.  HIGHS IN THE LOWER 80S.  NORTH
WIND NEAR 15 MPH.

86/GW

In the hours before

Special weather statement, Oct 6, 4:13 AM CDT, 2 hours 54 minutes before
TXZ229>234-239>247-062200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
413 AM CDT TUE OCT 6 1998

...LOCALLY HEAVY RAINFALL LIKELY OVER THE CROSSROADS AND COASTAL
BEND TODAY AS THE FIRST COLD FRONT OF THE SEASON MOVES THROUGH THE
AREA...
...FLOOD AND FLASH FLOOD WATCH IS IN EFFECT FOR GOLIAD-VICTORIA-
CALHOUN-ARANSAS AND REFUGIO COUNTIES TODAY...

THE FIRST COLD FRONT OF THE FALL SEASON IS MOVING INTO SOUTH TEXAS
THIS MORNING AND IS EXPECTED TO MOVE THROUGH MOST OF THE COASTAL
BEND AND CROSSROADS AREA BY NOON.  ALONG THE FRONT...SHOWERS AND
THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAINFALL WHICH MAY CAUSE
SOME FLOODING MAINLY OVER THE CROSSROADS AREA AND NORTHERN COASTAL
BEND LATER TODAY.

ADDITIONALLY...SOME OF THE THUNDERSTORMS WILL PRODUCE WIND GUSTS TO
50 MPH AND POSSIBLY SOME PEA TO MARBLE SIZED HAIL.  AT THIS TIME...NO
SEVERE WEATHER IS EXPECTED ALTHOUGH ONE OR TWO THUNDERSTORMS COULD
APPROACH SEVERE LIMITS.  THE MAIN THREAT FROM THESE SHOWERS AND
THUNDERSTORMS WILL BE LOCALLY HEAVY RAINFALL WITH POSSIBLE FLOODING.

AS THE COLD FRONT MOVE THROUGH...TEMPERATURES WILL QUICKLY FALL AND
REMAIN MAINLY IN THE 60S OVER MUCH OF THE REGION WITH TEMPERATURES
FALLING TO NEAR 70 FURTHER SOUTH.  THE THREAT FOR RAIN SHOULD
BEGIN TO DIMINISH BY TONIGHT.

RESIDENTS OVER THE AREA SHOULD KEEP INFORMED OF THE LATEST WEATHER
INFORMATION TODAY...ESPECIALLY IN AND NEAR THE FLOOD WATCH AREA.

GW
Special weather statement, Oct 6, 4:13 AM CDT, 2 hours 54 minutes before
TXZ229>234-239>247-062200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
413 AM CDT TUE OCT 6 1998

...LOCALLY HEAVY RAINFALL LIKELY OVER THE CROSSROADS AND COASTAL
BEND TODAY AS THE FIRST COLD FRONT OF THE SEASON MOVES THROUGH THE
AREA...
...FLOOD AND FLASH FLOOD WATCH IS IN EFFECT FOR GOLIAD-VICTORIA-
CALHOUN-ARANSAS AND REFUGIO COUNTIES TODAY...

THE FIRST COLD FRONT OF THE FALL SEASON IS MOVING INTO SOUTH TEXAS
THIS MORNING AND IS EXPECTED TO MOVE THROUGH MOST OF THE COASTAL
BEND AND CROSSROADS AREA BY NOON.  ALONG THE FRONT...SHOWERS AND
THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAINFALL WHICH MAY CAUSE
SOME FLOODING MAINLY OVER THE CROSSROADS AREA AND NORTHERN COASTAL
BEND LATER TODAY.

ADDITIONALLY...SOME OF THE THUNDERSTORMS WILL PRODUCE WIND GUSTS TO
50 MPH AND POSSIBLY SOME PEA TO MARBLE SIZED HAIL.  AT THIS TIME...NO
SEVERE WEATHER IS EXPECTED ALTHOUGH ONE OR TWO THUNDERSTORMS COULD
APPROACH SEVERE LIMITS.  THE MAIN THREAT FROM THESE SHOWERS AND
THUNDERSTORMS WILL BE LOCALLY HEAVY RAINFALL WITH POSSIBLE FLOODING.

AS THE COLD FRONT MOVE THROUGH...TEMPERATURES WILL QUICKLY FALL AND
REMAIN MAINLY IN THE 60S OVER MUCH OF THE REGION WITH TEMPERATURES
FALLING TO NEAR 70 FURTHER SOUTH.  THE THREAT FOR RAIN SHOULD
BEGIN TO DIMINISH BY TONIGHT.

RESIDENTS OVER THE AREA SHOULD KEEP INFORMED OF THE LATEST WEATHER
INFORMATION TODAY...ESPECIALLY IN AND NEAR THE FLOOD WATCH AREA.

GW

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 5:48 AM CDTFlash Flood WarningCRPVictoria3 hr
Oct 6, 6:11 AM CDTSevere Thunderstorm WarningCRPRefugio, San Patricio64 min
Oct 6, 6:35 AM CDTSevere Thunderstorm WarningCRPAransas50 min

Nearby

Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998

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.