Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 284, NWS San Angelo, TX

October 19, 2016Throckmorton County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Oct 19, 2016, 10:31 PM CDT for Throckmorton County, Texas. It was in force for 59 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 19, 2016, 10:31 PM CDT (03:31 UTC)
Expired
Oct 19, 2016, 11:30 PM CDT
In force
59 min
Issued by
NWS San Angelo, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Throckmorton County, TX

The radar

The Dyess AFB radar (KDYX), 71 km from the middle of the area, began a volume at 03:32 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, 3.5 hours before the alert went out and 183 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 2016-10-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 740 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, Fort Worth, TX at 00:00Z on 2016-10-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
740 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1774 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 19, 9:57 PM CDTSpecial Weather StatementSJTHaskell63 min
Oct 19, 10:23 PM CDTSpecial Weather StatementSJTThrockmorton67 min
Oct 19, 10:37 PM CDTSpecial Weather StatementSJTHaskell53 min
Oct 19, 11:03 PM CDTSpecial Weather StatementSJTThrockmorton57 min
Oct 19, 11:51 PM CDTSpecial Weather StatementSJTThrockmorton69 min
Oct 20, 1:22 AM CDTAreal Flood AdvisorySJTHaskell, Shackelford, Throckmorton113 min
Oct 20, 2:44 AM CDTAreal Flood AdvisorySJTShackelford2 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2016Every severe thunderstorm warning in 2016

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.