Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 87, NWS Austin/San Antonio, TX

May 27, 2002Kerr County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 27, 2002, 11:35 PM CDT for Kerr County, Texas. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 27, 2002, 11:35 PM CDT (04:35 UTC)
Expired
May 28, 2002, 12:30 AM CDT
In force
55 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Kerr County, TX

The watch it was issued in

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

IssuedProductOfficeLasted
May 27, 7:45 PM CDTSevere Thunderstorm WatchSPC4 hr
May 27, 11:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 4.6 hours before the alert went out and 162 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 2002-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3101 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 2002-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.19395878Sfc1 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
3101 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1249 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
1.1
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 280435
SVRSAT
TXC265-280530-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1135 PM CDT MON MAY 27 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  KERR

* UNTIL 1230 AM CDT

* AT 1133 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
SEVERE THUNDERSTORM 10 MILES NORTHWEST OF MOUNTAIN HOME...MOVING 
EAST-SOUTHEAST AT 30 MPH. HAIL TO GOLFBALL SIZE AND DAMAGING WINDS 
TO 70 MPH CAN BE EXPECTED WITH THIS THUNDERSTORM.


LAT...LON 3026 9932 3026 9973 3009 9974 3009 9966
          2994 9966 2993 9917 2982 9895 3011 9894
          3012 9934

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 8:01 PM CDTSevere Thunderstorm WarningEWXBurnet59 min
May 27, 9:03 PM CDTSevere Thunderstorm WarningEWXWilliamson57 min
May 27, 9:52 PM CDTSevere Thunderstorm WarningEWXWilliamson53 min
May 28, 1:16 AM CDTSevere Thunderstorm WarningEWXMedina59 min
May 28, 1:21 AM CDTSevere Thunderstorm WarningEWXKendall54 min

Nearby

Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002

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.