Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 4, NWS Austin/San Antonio, TX

February 15, 2001Edwards County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 15, 2001, 9:20 PM CST for Edwards County, Texas. It was in force for 25 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 15, 2001, 9:20 PM CST (03:20 UTC)
Expired
Feb 15, 2001, 9:45 PM CST
In force
25 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Edwards County, TX

What was reported inside it

TimeReportWhereRemark
Feb 15, 9:30 PM CSTHail 1.75Rocks Spgs, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Feb 15, 9:15 PM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 3.3 hours before the alert went out and 86 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 2001-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 616 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2001-02-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.1939587897117Sfc1 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
616 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
661 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 160322
SVRSAT
TXC137-160345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
920 PM CST THU FEB 15 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  EDWARDS COUNTY

* UNTIL 945 PM CST

* AT 920 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   SEVERE THUNDERSTORM OVER EDWARDS COUNTY...OR 15 MILES NORTHWEST 
OF ROCKSPRINGS...MOVING NORTHEAST AT 55 MPH.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 15, 8:13 PM CSTSevere Thunderstorm WarningEWXVal Verde62 min
Feb 15, 8:46 PM CSTTornado WarningEWXEdwards, Val Verde29 min
Feb 15, 10:07 PM CSTSevere Thunderstorm WarningEWXEdwards38 min
Feb 15, 10:29 PM CSTSevere Thunderstorm WarningEWXEdwards, Kinney, Val Verde46 min
Feb 15, 11:08 PM CSTSevere Thunderstorm WarningEWXReal, Uvalde52 min
Feb 15, 11:35 PM CSTSevere Thunderstorm WarningEWXBandera, Real, Uvalde55 min
Feb 15, 11:35 PM CSTSevere Thunderstorm WarningEWXKerr55 min
Feb 16, 12:30 AM CSTSevere Thunderstorm WarningEWXGillespie, Kendall, Kerr45 min
Feb 16, 12:45 AM CSTSevere Thunderstorm WarningEWXBandera, Kendall, Kerr45 min
Feb 16, 12:45 AM CSTSevere Thunderstorm WarningEWXMedina45 min
Feb 16, 1:15 AM CSTSevere Thunderstorm WarningEWXBandera, Bexar, Medina45 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.