Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 13, NWS Corpus Christi, TX

May 5, 2001Webb County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at May 5, 2001, 11:21 PM CDT for Webb County, Texas. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: May 5, 2001, 11:21 PM CDT (04:21 UTC)
Expired: May 6, 2001, 12:00 AM CDT
In force: 39 min
Issued by: NWS Corpus Christi, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Webb County, TX

The radar

The Laughlin AFB radar (KDFX), 167 km from the middle of the area, began a volume at 04:20 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, 4.4 hours before the alert went out and 205 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: 1834 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 607 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 176 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 7.8

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KCRP 060422
SVRCRP
TXC479-060500-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1121 PM CDT SAT MAY 5 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN AND CENTRAL WEBB COUNTY IN TEXAS

* UNTIL 1200 AM CDT

* AT 1116 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER EXTREME NORTH CENTRAL WEBB COUNTY...OR
  ABOUT 28 MILES SOUTHWEST OF COTULLA...MOVING SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  OPEN COUNTRY IN NORTHERN WEBB COUNTY AROUND 1140 PM CDT...
  OPEN COUNTRY IN CENTRAL WEBB COUNTY AROUND MIDNIGHT CDT...

THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...
  HAIL UP TO THE SIZE OF QUARTERS...
  WINDS UP TO 60 MILES AN HOUR...

SEEK A STURDY SHELTER IMMEDIATELY!


TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS WITH LITTLE
WARNING.b

LAT...LON 2821 9954 2812 9967 2763 9921 2775 9906

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 5, 10:15 PM CDT, 1 hour 6 minutes earlier.

Area forecast discussion, May 5, 10:15 PM CDT, 1 hour 6 minutes before

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1015 PM CDT SAT MAY 5 2001

EXPECT ADDITIONAL WIDELY SCATTERED CONVECTION TO DEVELOP OVER THE
CWA ALONG A WEAK E-W ORIENTED SURFACE TROUGH...AS AN UPPER JET
STREAK DEVELOPS OVERNIGHT. WL MAKE SOME MINOR TEMPERATURE
ADJUSTMENTS FOR TONIGHT OWING THE RECENT/EXPECTED DEW POINTS.
MARINE...WL MAINTAIN THE SCA OVER THE OFFSHORE WATERS AND THE SCEC
OVER THE BAYS OWING TO CURRENT/EXPECTED CONDITIONS.

.CRP...SCA GMZ250-255-270-275.

87

In the hours before

Local storm report, May 5, 7:15 PM CDT, 4 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
715 PM CDT SAT MAY 5 2001

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

0505 PM    1 W CHARCO                TX   0.88 INCH HAIL
05/05/01   GOLIAD                         REPORTED BY SHERIFFS OFFICE

0625 PM    1 SW MC FADDIN                 1.75 INCH HAIL
05/05/01   VICTORIA                       REPORTED BY SHERIFFS OFFICE

0635 PM    4 S VICTORIA                   0.75 INCH HAIL
05/05/01   VICTORIA                       REPORTED BY LOCAL SPOTTER

COYNE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 7:11 PM CDT	Severe Thunderstorm Warning	CRP	Calhoun	49 min
May 5, 7:44 PM CDT	Severe Thunderstorm Warning	CRP	Refugio	46 min
May 5, 10:41 PM CDT	Severe Thunderstorm Warning	CRP	Calhoun	19 min
May 5, 11:27 PM CDT	Severe Thunderstorm Warning	CRP	La Salle	33 min
May 6, 5:52 PM CDT	Severe Thunderstorm Warning	CRP	La Salle	53 min
May 6, 6:36 PM CDT	Severe Thunderstorm Warning	CRP	Webb	54 min
May 6, 6:45 PM CDT	Severe Thunderstorm Warning	CRP	La Salle	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.