Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 44, NWS Corpus Christi, TX

September 19, 2002Duval County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Sep 19, 2002, 10:10 PM CDT for Duval County, Texas. It was in force for 33 days. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 19, 2002, 10:10 PM CDT (03:10 UTC)
Expired: Oct 23, 2002, 12:15 AM CDT
In force: 33 days
Issued by: NWS Corpus Christi, TX
Area: Counties, with a storm outline in the text

County Duval County, TX

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm 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, 3.2 hours before the alert went out and 72 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: 3776 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 748 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 68 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KCRP 230429
SVRCRP
TXC131-230515-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1128 PM CDT TUE OCT 22 2002

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN DUVAL COUNTY IN TEXAS

* UNTIL 1215 AM CDT

* AT 1124 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 18 MILES SOUTHWEST OF FREER...OR ABOUT 28 MILES
  WEST OF BENAVIDES...MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  4 MILES NORTHWEST OF FREER AROUND 1155 PM CDT...
  4 MILES WEST OF SEVEN SISTERS AROUND 1215 AM CDT...

THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...  
  DAMAGING WINDS UP TO 60 MILES AN HOUR...TORRENTIAL RAINFALL...AND
  HAIL THE SIZE OF DIMES.


LAT...LON 2777 9880 2757 9877 2771 9856 2805 9835
          2803 9879

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 Sep 19, 9:20 PM CDT, 50 minutes earlier.

Area forecast discussion, Sep 19, 9:20 PM CDT, 50 minutes before

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
920 PM CDT THU SEP 19 2002

ACTIVE BURST OF CONVECTION THIS EVENING AHEAD OF THE SFC TROF.
EXPECT CONVECTION TO CONTINUE ALONG THE COAST THROUGH MIDNIGHT
BEFORE FINALLY MOVING OFFSHORE. CELL MERGERS OVER KENEDY COUNTY
COULD ROTATE UP THE COAST INTO EASTERN NUECES COUNTY...BRINGING
HEAVY RAIN...AND THE POTENTIAL FOR LOCALIZED FLOODING. WILL CONTINUE
TO WATCH THIS VERY CLOSELY. WILL DROP POPS BEHIND THE TROF.

9PM MSAS ANALYSIS SHOWS THE COLD FRONT ALONG A LINE FROM EAGLE PASS
TO AUSTIN LINE. 01Z RUC STILL BRINGS THE COLD FRONT TO THE COAST
BEFORE SUNRISE. DWPTS ARE IN THE 50S BEHIND THE FRONT.

MARINE...CWF IS IN GOOD SHAPE. MAINLY A SHORT TERM EVENT RIGHT NOW
WITH CONVECTION MOVING OFF THE COAST. WILL HANDLE THIS WITH SPECIAL
MARINE WARNINGS.

.CRP...NONE

75/81

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 19, 7:17 PM CDT	Flash Flood Warning	CRP	Duval	3 hr
Sep 19, 7:24 PM CDT	Severe Thunderstorm Warning	CRP	Duval	36 min
Sep 19, 7:24 PM CDT	Severe Thunderstorm Warning	CRP	Aransas	4 hr
Sep 19, 7:39 PM CDT	Flash Flood Warning	CRP	Goliad	3 hr
Sep 19, 8:48 PM CDT	Flash Flood Warning	CRP	Kleberg	3 hr
Sep 19, 9:05 PM CDT	Special Marine Warning	CRP		55 min
Sep 19, 9:29 PM CDT	Special Marine Warning	CRP		61 min
Sep 19, 9:50 PM CDT	Tornado Warning	CRP	Refugio	25 min
Sep 19, 10:02 PM CDT	Flash Flood Warning	CRP	Bee, Refugio, San Patricio	3 hr
Sep 19, 10:15 PM CDT	Special Marine Warning	CRP		60 min
Sep 19, 10:30 PM CDT	Special Marine Warning	CRP		3 hr
Sep 19, 10:44 PM CDT	Severe Thunderstorm Warning	CRP	Nueces, San Patricio	61 min
Sep 19, 11:07 PM CDT	Flash Flood Warning	CRP	Nueces	113 min
Sep 20, 12:00 AM CDT	Special Marine Warning	CRP		2 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2002 Every severe thunderstorm 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.