Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 204, NWS San Angelo, TX

July 23, 2017Concho County, Tom Green County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Jul 23, 2017, 4:35 PM CDT for Concho County, Tom Green County, Texas. It was in force for 25 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
Jul 23, 2017, 4:35 PM CDT (21:35 UTC)
Expired
Jul 23, 2017, 5:00 PM CDT
In force
25 min
Issued by
NWS San Angelo, TX
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Concho County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 31 km from the middle of the area, began a volume at 21:35 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 (KDLF), launched 12:00Z, 9.6 hours before the alert went out and 231 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 2017-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 501 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 2017-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
501 J/kg
Mixed-layer CIN
-233 J/kg
Mixed-layer LCL
1356 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
9 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
Jul 23, 12:10 AM CDTSpecial Weather StatementSJTNolan35 min
Jul 23, 2:07 PM CDTAreal Flood AdvisorySJTMcCulloch, Mason, San Saba113 min
Jul 23, 3:13 PM CDTSpecial Weather StatementSJTMason47 min
Jul 23, 3:16 PM CDTSevere Thunderstorm WarningSJTKimble, Mason44 min
Jul 23, 3:19 PM CDTSpecial Weather StatementSJTMenard41 min
Jul 23, 3:45 PM CDTSpecial Weather StatementSJTMenard30 min
Jul 23, 3:48 PM CDTSpecial Weather StatementSJTKimble27 min
Jul 23, 3:56 PM CDTAreal Flood AdvisorySJTKimble, Menard, Schleicher, Sutton2 hr
Jul 23, 4:55 PM CDTSpecial Weather StatementSJTFisher35 min
Jul 23, 5:07 PM CDTSpecial Weather StatementSJTColeman23 min
Jul 23, 5:35 PM CDTSpecial Weather StatementSJTColeman25 min
Jul 23, 5:42 PM CDTSpecial Weather StatementSJTCoke33 min

Nearby

Severe Thunderstorm Warnings in Texas, 2017Every severe thunderstorm warning in 2017

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.