Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 87, NWS Corpus Christi, TX

June 19, 1997Live Oak County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Jun 19, 1997, 6:22 PM CDT for Live Oak County, Texas. It was in force for 68 min. 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 19, 1997, 6:22 PM CDT (23:22 UTC)
Expired: Jun 19, 1997, 7:30 PM CDT
In force: 68 min
Issued by: NWS Corpus Christi, TX
Area: Whole counties

County Live Oak County, TX

The radar

The Corpus Christi radar (KCRP), 87 km from the middle of the area, began a volume at 23:25 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, 11.4 hours before the alert went out and 103 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: 3969 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 459 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -27 m²/s²
0-3 km storm-relative helicity: 39 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 
TTAA00 KCRP 192324 RRA
SVRCRP
TXC297-200030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
622 PM CDT THU JUN 19 1997
 
THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY......
 
IN SOUTH CENTRAL TEXAS
 
   ...LIVE OAK COUNTY
 
AT 615 PM DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM FROM GEORGE WEST TO
THREE RIVER. THE STORMS HAVE A HISTORY OF LARGE HAIL AND DAMAGING WINDS
TO 70 MPH.  VERY HEAVY RAINFALL OF UP TO 2 TO 3 INCHES PER HOUR WITH
THESE STORMS.  LITTLE MOVEMENT WAS NOTED WITH THE STORM.
 
FLOODING OF LOW-LYING AREAS IS LIKELY.  A FLASH FLOOD WARNINGS MAY
BE REQUIRED IF THUNDERSTORMS CONTINUE IN LIVE OAK COUNTY OVER THE
NEXT HOUR.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 19, 2:22 PM CDT, 4 hours earlier.

Area forecast discussion, Jun 19, 2:22 PM CDT, 4 hours before

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
220 PM CDT THU JUN 19 1997

KCRP 88D BASE REF SHOWS WIDELY SCT SHRA/TSRA FM CRP-VCT-HOU. THE
COMBINATION OF AFTERNOON HEATING AND A SEABREEZE FNT HAS LED TO
DVLPMNT OF THESE STMS. ADAP GRAPHICS CONT TO SHOW A CAP-LESS AND
UNSTABLE AMS ACROSS THE FA. TSRA SHUD CONT INTO THE EVENING HRS ALONG
THE COASTAL PLAINS AS THE SEABREEZE PUSHES WELL INLAND. ADDITIONAL
STMS MAY AFFECT THE RIO GRANDE PLAINS AREA AS A VORT MAX STRENGHTENS
OVR S CENT TX.

LIFT FM THIS SYSTEM WL SPREAD SLOWLY EWD OVR TONIGHT INTO FRI...FOR
THIS REASON WL KP SCT POPS IN FOR LRD...WIDELY SCT FOR CRP/VCT
TONIGHT AND INCREASE POPS IN CRP/VCT AREAS TOMORROW. ETA TIME SXTNS
SHOW UVVS PRESENT FRI ALONG WITH DIFFLUENCE ALF...HI CAPE VALUES AND
AMPLE MOISTURE (PWS AROUND 1.6 INCHES). LO PRES ACROSS THE CENT THIRD
OF THE NATION WL LEAD TO A STRONGER PGF ACROSS THE FA. THESE HIER
WINDS ARE REFLECTED IN NGM MOS GUIDANCE AND THE PREVIOUS FCST...SO WL
NOT DEVIATE MUCH.

MARINE INFO...
JUST OFFSHORE FM PTA...WIND ESE AROUND 20KT. NO SEAS GIVEN.

/CRP/VCT/
.TONIGHT...M/C. (EVENING POPS CRP) SE WIND 10-15 MPH.
.FRI...PARTLY-M/C. SE AND S WIND 15-25.
.FRI NIGHT...M/C.
.SAT...PARTLY-M/C.

/LRD/
.TONIGHT...P/C. SE WIND NEAR 15 MPH.
.FRI...P/C. SE WIND 15-20 MPH.
.FRI NIGHT...P/C.
.SAT...P/C.

PRELIMS...

CRP  078/092/077/092   2423
NGP  081/088/081/088   2423
VCT  074/090/075/090   3423
LRD  078/100/076/100   3222

SRP...77

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 2:44 PM CDT	Severe Thunderstorm Warning	CRP	Victoria	61 min
Jun 19, 3:03 PM CDT	Severe Thunderstorm Warning	CRP	Goliad	57 min
Jun 19, 4:16 PM CDT	Severe Thunderstorm Warning	CRP	Kleberg	59 min
Jun 19, 4:22 PM CDT	Severe Thunderstorm Warning	CRP	Bee	68 min
Jun 19, 5:00 PM CDT	Severe Thunderstorm Warning	CRP	Jim Wells	60 min
Jun 19, 5:17 PM CDT	Severe Thunderstorm Warning	CRP	Live Oak	58 min
Jun 19, 5:29 PM CDT	Severe Thunderstorm Warning	CRP	Bee	61 min
Jun 19, 6:22 PM CDT	Flash Flood Warning	CRP	Live Oak	68 min
Jun 19, 6:43 PM CDT	Flash Flood Warning	CRP	Live Oak	2 hr

Nearby

Severe Thunderstorm Warnings in Texas, 1997 Every severe thunderstorm 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.