Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 192, NWS San Angelo, TX

August 22, 2020Runnels County, Tom Green County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Aug 22, 2020, 1:24 AM CDT for Runnels County, Tom Green County, Texas. It was in force for 66 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
Aug 22, 2020, 1:24 AM CDT (06:24 UTC)
Expired
Aug 22, 2020, 2:30 AM CDT
In force
66 min
Issued by
NWS San Angelo, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Runnels County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 38 km from the middle of the area, began a volume at 06:24 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

Fort Worth, TX (KFWD), launched 00:00Z, 6.4 hours before the alert went out and 307 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, Fort Worth, TX at 00:00Z on 2020-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Fort Worth, TX at 00:00Z on 2020-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2579 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
74 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
Aug 22, 1:12 AM CDTSpecial Weather StatementSJTTom Green63 min
Aug 22, 2:03 AM CDTSevere Thunderstorm WarningSJTIrion, Schleicher, Tom Green29 min
Aug 22, 2:20 AM CDTSpecial Weather StatementSJTConcho, Menard40 min
Aug 22, 2:39 AM CDTSevere Thunderstorm WarningSJTConcho, McCulloch, Mason, Menard66 min
Aug 22, 3:41 AM CDTSpecial Weather StatementSJTMason64 min
Aug 22, 6:45 AM CDTSpecial Weather StatementSJTSan Saba45 min
Aug 22, 9:14 AM CDTSpecial Weather StatementSJTColeman46 min
Aug 22, 10:24 AM CDTSpecial Weather StatementSJTMenard36 min
Aug 22, 10:51 AM CDTSpecial Weather StatementSJTFisher24 min
Aug 22, 6:47 PM CDTSpecial Weather StatementSJTColeman43 min

Nearby

Severe Thunderstorm Warnings in Texas, 2020Every severe thunderstorm warning in 2020

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.