Alert archive / Texas / Tornado Warnings in 2001

Tornado Warning 1, NWS Corpus Christi, TX

May 6, 2001Webb County, Texas

NWS Corpus Christi, TX issued this tornado warning at May 6, 2001, 7:20 PM CDT for Webb County, Texas. It was in force for 40 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 6, 2001, 7:20 PM CDT (00:20 UTC)
Expired: May 6, 2001, 8:00 PM CDT
In force: 40 min
Issued by: NWS Corpus Christi, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Webb County, TX

The radar

The Corpus Christi radar (KCRP), 156 km from the middle of the area, began a volume at 00:20 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 6, 6:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 0.3 hours before the alert went out and 173 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

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

000 
WFUS54 KCRP 070021
TORCRP
TXC479-070100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
720 PM CDT SUN MAY 6 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL WEBB COUNTY IN TEXAS

* UNTIL 800 PM CDT

* AT 716 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A DEVELOPING TORNADO OVER NORTH CENTRAL WEBB COUNTY...OR ABOUT 31  
  MILES SOUTH OF COTULLA...MOVING SOUTHEAST AT 10 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  OPEN COUNTRY IN NORTHERN WEBB COUNTY AROUND 730 PM CDT...
  OPEN COUNTRY IN CENTRAL WEBB COUNTY AROUND 740 PM CDT...
  OPEN COUNTRY IN EASTERN WEBB COUNTY AROUND 750 PM CDfT...

LARGE HAIL AND DAMAGING THUNDERSTORM WINDS ARE ALSO EXPECTED WITH
THIS STORM.

LAT...LON 2811 9910 2803 9928 2764 9911 2777 9884

$$

COLLINS

The office that day

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

Issued	Product	Office	Counties	Lasted
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
May 7, 1:26 AM CDT	Severe Thunderstorm Warning	CRP	San Patricio	34 min

Nearby

Tornado Warnings in Texas, 2001 Every tornado warning in 2001 Tornadoes 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.