Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 25, NWS Corpus Christi, TX

May 7, 2001San Patricio County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at May 7, 2001, 1:26 AM CDT for San Patricio County, Texas. It was in force for 34 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: May 7, 2001, 1:26 AM CDT (06:26 UTC)
Expired: May 7, 2001, 2:00 AM CDT
In force: 34 min
Issued by: NWS Corpus Christi, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County San Patricio County, TX

The radar

The Corpus Christi radar (KCRP), 25 km from the middle of the area, began a volume at 06:30 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, 6.4 hours before the alert went out and 36 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: 2134 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 695 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: -5 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.6

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 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 May 6, 10:30 PM CDT, 2 hours 56 minutes earlier.

Area forecast discussion, May 6, 10:30 PM CDT, 2 hours 56 minutes before

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1030 PM CDT SUN MAY 6 2001

WATER VAPOR IMAGERY SUGGESTS AN UPPER JET ACROSS/APPROACHING THE CWA
FROM THE SOUTHWEST. THE NGM/ETA INITIALIZES THIS JET TO THE
SOUTHWEST OF THE CWA AND PROGS IT TO MOVE ACROSS THE AREA OVERNIGHT.
THE COMBINATION OF UPPER FORCING AND BOUNDARY INTERACTIONS MAY
GENERATE ADDITIONAL ACTIVITY OVERNIGHT. WL MAINTAIN POPS OVER THE
CWA FOR OVERNIGHT. HWR...WL MAKE ADJUSTMENTS TO THE ZFP AS THE
STATUS OF THE TORNADO WATCH CHANGES. MARINE...ANTICIPATE DEVELOPMENT
LATER TONIGHT OVER THE AREA IN RESPONSE TO THE UPPER JET. WL
MAINTAIN THE SCEC OFFSHORE.

.CRP...NONE.

87

In the hours before

Local storm report, May 6, 7:59 PM CDT, 5 hours 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
759 PM CDT SUN MAY 6 2001

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

0758 PM    20 N COTULLA              TX   0.75 INCH HAIL
05/06/01   LASALLE                       REPORTED BY GENERAL PUBLIC

Local storm report, May 6, 11:55 PM CDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1155 PM CDT SUN MAY 6 2001

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

1140 PM    FREER                     TX   0.75 INCH HAIL
05/06/01   DUVAL                          REPORTED BY LOCAL SPOTTER

Special weather statement, May 7, 12:30 AM CDT, 56 minutes before

TXZ229>231-239>241-070600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1230 AM CDT MON MAY 7 2001

...TORNADO WATCH EXPIRED...

THE NATIONAL WEATHER SERVICE WILL NOT EXTEND THE TORNADO WATCH WHICH
WAS IN EFFECT FOR THE FOLLOWING COUNTIES...DUVAL...JIM WELLS...
LASALLE...LIVE OAK...MCMULLEN AND WEBB.

DOPPLER WEATHER RADAR INDICATES STRONG TO SEVERE THUNDERSTORMS
MOVING EASTWARD AT 50 MPH ACROSS JIM WELL%S AND SOUTHERN LIVE OAK
COUNTIES.  DAMAGING WIND AND TORRENTIAL RAINFALL WILL BE THE
THREAT WITH THESE STORMS.

LAMARRE

Local storm report, May 7, 1:15 AM CDT, 11 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 7:20 PM CDT	Tornado Warning	CRP	Webb	40 min
May 6, 8:00 PM CDT	Severe Thunderstorm Warning	CRP	Webb	60 min
May 6, 8:10 PM CDT	Severe Thunderstorm Warning	CRP	La Salle	65 min
May 6, 8:50 PM CDT	Flash Flood Warning	CRP	La Salle	3 hr
May 6, 9:15 PM CDT	Severe Thunderstorm Warning	CRP	La Salle, McMullen	60 min
May 6, 10:20 PM CDT	Severe Thunderstorm Warning	CRP	Webb	25 min
May 6, 11:42 PM CDT	Severe Thunderstorm Warning	CRP	Duval	33 min
May 7, 12:01 AM CDT	Severe Thunderstorm Warning	CRP	Jim Wells	59 min
May 7, 12:45 AM CDT	Severe Thunderstorm Warning	CRP	Kleberg, Nueces	60 min

Nearby

Severe Thunderstorm Warnings in Texas, 2001 Every severe thunderstorm warning in 2001

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.