Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 246, NWS San Angelo, TX

October 4, 2004McCulloch County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Oct 4, 2004, 2:49 PM CDT for McCulloch County, Texas. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 4, 2004, 2:49 PM CDT (19:49 UTC)
Expired
Oct 4, 2004, 3:45 PM CDT
In force
56 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County McCulloch County, TX

The radar

The San Angelo radar (KSJT), 110 km from the middle of the area, began a volume at 19:51 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

Del Rio, TX (KDRT), launched 12:00Z, 7.8 hours before the alert went out and 249 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 12:00Z on 2004-10-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1409 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 12:00Z on 2004-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 square meters per square second.1939Sfc1 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
1409 J/kg
Mixed-layer CIN
-115 J/kg
Mixed-layer LCL
631 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 4, 7:13 AM CDTSevere Thunderstorm WarningSJTSterling62 min
Oct 4, 11:14 AM CDTSevere Thunderstorm WarningSJTCrockett76 min
Oct 4, 11:28 AM CDTSevere Thunderstorm WarningSJTSterling62 min
Oct 4, 12:53 PM CDTSevere Thunderstorm WarningSJTNolan52 min
Oct 4, 1:17 PM CDTSevere Thunderstorm WarningSJTCoke, Runnels, Tom Green58 min

Nearby

Severe Thunderstorm Warnings in Texas, 2004Every severe thunderstorm warning in 2004

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.