Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 44, NWS Corpus Christi, TX

October 18, 1998Victoria County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Oct 18, 1998, 9:57 PM CDT for Victoria County, Texas. It was in force for 6 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 18, 1998, 9:57 PM CDT (02:57 UTC)
Expired
Oct 19, 1998, 4:00 AM CDT
In force
6 hr
Issued by
NWS Corpus Christi, TX
Area
Whole counties

County Victoria County, TX

The radar

The Corpus Christi radar (KCRP), 124 km from the middle of the area, began a volume at 03:01 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, 3.0 hours before the alert went out and 124 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 00:00Z on 1998-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 272 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 00:00Z on 1998-10-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 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
272 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
485 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
171 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

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 Oct 18, 8:30 PM CDT, 1 hour 27 minutes earlier.

Area forecast discussion, Oct 18, 8:30 PM CDT, 1 hour 27 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
830 PM CDT SUN OCT 18 1998

EXPECT AT LEAST LGT TO MDT CONVECTION/STRATIFORM PCPN TO CONTINUE ACRS
THE CWA IN RESPONSE TO MSTR CONVERGENCE ASSOCD WITH THE NEARBY
QUASI-STATIONARY FNT AND WITH OVERRUNNING. PW VALUES REMAIN HIGH OVR
THE CWA. THUS FLOODING POTENTIAL REMAINS TNGT. NGM/ETA/AVN KEEPS SFC
FNT...BASED ON THETA-E GRADIENT...ACRS THE CNTRL/SRN CWA MON...
RESULTING IN CONTINUED MOD/HVY RAIN. NO CHGS ATTM.

87

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 19, 1:20 AM CDTFlash Flood WarningCRPKleberg, Nueces4 hr

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.