Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 110, NWS San Angelo, TX

May 23, 2020Shackelford County, Throckmorton County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 23, 2020, 10:59 PM CDT for Shackelford County, Throckmorton County, Texas. It was in force for 49 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: May 23, 2020, 10:59 PM CDT (03:59 UTC)
Expired: May 23, 2020, 11:48 PM CDT
In force: 49 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Shackelford County, TX, Throckmorton County, TX

The radar

The Dyess AFB radar (KDYX), 47 km from the middle of the area, began a volume at 04:00 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 23, 9:33 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.0 hours before the alert went out and 306 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2884 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 1309 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 23, 6:38 PM CDT, 4 hours 21 minutes earlier.

Area forecast discussion, May 23, 6:38 PM CDT, 4 hours 21 minutes before

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Hazardous weather outlook, May 23, 3:12 PM CDT, 7 hours 47 minutes before

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In the hours before

Special weather statement, May 23, 8:15 PM CDT, 2 hours 44 minutes before

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Special weather statement, May 23, 8:44 PM CDT, 2 hours 15 minutes before

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Special weather statement, May 23, 9:13 PM CDT, 1 hour 46 minutes before

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Special weather statement, May 23, 9:31 PM CDT, 1 hour 28 minutes before

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Local storm report, May 23, 10:04 PM CDT, 55 minutes before

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Special weather statement, May 23, 10:55 PM CDT, 4 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 7:17 PM CDT	Special Weather Statement	SJT	Irion	28 min
May 23, 7:31 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Tom Green	29 min
May 23, 8:01 PM CDT	Special Weather Statement	SJT	Irion, Tom Green	44 min
May 23, 8:15 PM CDT	Special Weather Statement	SJT	Coke	45 min
May 23, 8:44 PM CDT	Special Weather Statement	SJT	Coke, Nolan, Runnels, Tom Green	46 min
May 23, 9:13 PM CDT	Special Weather Statement	SJT	Fisher, Haskell, Jones, Throckmorton	62 min
May 23, 9:31 PM CDT	Special Weather Statement	SJT	Runnels, Taylor	44 min
May 23, 9:39 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones, Shackelford, Throckmorton	81 min
May 23, 10:21 PM CDT	Areal Flood Advisory	SJT	Fisher, Haskell, Jones, Shackelford, Throckmorton	3 hr
May 23, 10:55 PM CDT	Special Weather Statement	SJT	Callahan, Coleman	65 min
May 24, 4:17 PM CDT	Special Weather Statement	SJT	Crockett	28 min
May 24, 4:20 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	70 min
May 24, 5:20 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion	55 min
May 24, 6:05 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Crockett, Irion, Schleicher, Sterling, Tom Green	55 min
May 24, 6:16 PM CDT	Special Weather Statement	SJT	Schleicher, Sutton	59 min
May 24, 6:31 PM CDT	Severe Thunderstorm Warning	SJT	Sterling	59 min
May 24, 6:54 PM CDT	Areal Flood Advisory	SJT	Tom Green	111 min
May 24, 6:56 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Concho, Runnels, Tom Green	64 min

Nearby

Severe Thunderstorm Warnings in Texas, 2020 Every 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.