Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 31, NWS San Angelo, TX

April 10, 2020Crockett County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 10, 2020, 8:55 PM CDT for Crockett County, Texas. It was in force for 65 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: Apr 10, 2020, 8:55 PM CDT (01:55 UTC)
Expired: Apr 10, 2020, 10:00 PM CDT
In force: 65 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Tornado: Possible
Hail: 2.75 in
Wind: 60.0 mph

County Crockett County, TX

The radar

The San Angelo radar (KSJT), 113 km from the middle of the area, began a volume at 01:57 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
Apr 10, 3:42 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.9 hours before the alert went out and 156 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: 608 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 1759 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 204 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.2

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 Apr 10, 6:22 PM CDT, 2 hours 33 minutes earlier.

Area forecast discussion, Apr 10, 6:22 PM CDT, 2 hours 33 minutes before

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Hazardous weather outlook, Apr 10, 1:48 PM CDT, 7 hours 7 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
Apr 10, 8:19 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	41 min
Apr 10, 9:56 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Schleicher	44 min
Apr 10, 10:43 PM CDT	Special Weather Statement	SJT	Schleicher	47 min
Apr 11, 9:52 AM CDT	Special Weather Statement	SJT	Throckmorton	38 min
Apr 11, 10:00 AM CDT	Severe Thunderstorm Warning	SJT	Shackelford, Throckmorton	35 min
Apr 11, 3:30 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	60 min
Apr 11, 4:07 PM CDT	Tornado Warning	SJT	Haskell	38 min
Apr 11, 4:32 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones	58 min
Apr 11, 4:38 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Throckmorton	52 min
Apr 11, 5:04 PM CDT	Special Weather Statement	SJT	Tom Green	41 min
Apr 11, 5:21 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones, Shackelford	54 min
Apr 11, 5:32 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	43 min
Apr 11, 5:36 PM CDT	Special Weather Statement	SJT	Throckmorton	39 min
Apr 11, 5:54 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Shackelford	66 min
Apr 11, 6:06 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Runnels, Tom Green	39 min
Apr 11, 6:18 PM CDT	Severe Thunderstorm Warning	SJT	Shackelford, Throckmorton	57 min
Apr 11, 6:29 PM CDT	Tornado Warning	SJT	Shackelford	31 min
Apr 11, 6:45 PM CDT	Areal Flood Advisory	SJT	Tom Green	60 min
Apr 11, 6:49 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Shackelford	56 min
Apr 11, 6:53 PM CDT	Special Weather Statement	SJT	Tom Green	37 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.