Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 65, NWS San Angelo, TX

April 22, 2001Sutton County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 22, 2001, 11:53 PM CDT for Sutton County, Texas. It was in force for 67 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
Apr 22, 2001, 11:53 PM CDT (04:53 UTC)
Expired
Apr 23, 2001, 1:00 AM CDT
In force
67 min
Issued by
NWS San Angelo, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Sutton County, TX

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 22, 11:45 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 4.9 hours before the alert went out and 131 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-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2001-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1796 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2001-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1796 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
2172 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSJT 230454
SVRSJT
TXC435-230530-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
1153 PM CDT SUN APR 22 2001

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SUTTON COUNTY IN WEST CENTRAL TEXAS

* UNTIL 100 AM CDT

* AT 1147 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 14 MILES SOUTH OF SONORA...MOVING EAST AT 25
  MPH.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...DEADLY
LIGHTNING...AND VERY HEAVY RAINFALL. MOVE INTO A STURDY BUILDING AND
STAY AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3061 10081 3031 10053 3035 10017 3068 10017

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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 22, 10:12 PM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, Apr 22, 10:12 PM CDT, 1 hour 41 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
1012 PM CDT SUN APR 22 2001

WILL SEND A ZONE UPDATE TO INCREASE POPS ACROSS PARTS OF SOUTHERN HALF
OF CWFA...BASED ON RADAR TRENDS.

19

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 22, 9:59 PM CDTSevere Thunderstorm WarningSJTSchleicher46 min
Apr 22, 10:03 PM CDTSevere Thunderstorm WarningSJTSutton57 min
Apr 22, 10:45 PM CDTSevere Thunderstorm WarningSJTMenard60 min
Apr 22, 11:47 PM CDTFlash Flood WarningSJTBrown3 hr
Apr 22, 11:56 PM CDTSevere Thunderstorm WarningSJTKimble64 min
Apr 23, 12:10 AM CDTSevere Thunderstorm WarningSJTMenard50 min
Apr 23, 12:46 AM CDTSevere Thunderstorm WarningSJTMcCulloch44 min
Apr 23, 12:55 AM CDTSevere Thunderstorm WarningSJTMason50 min
Apr 23, 1:17 AM CDTSevere Thunderstorm WarningSJTKimble43 min

Nearby

Severe Thunderstorm Warnings in Texas, 2001Every 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.