Alert archive / Texas / Mesoscale Discussions in 2022

Mesoscale Discussion 652

May 4, 202214 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 4, 2022, 9:17 PM CDT for 14 counties in Texas. It was in force for 28 min.

The area

The outline as issued.

The facts

Issued: May 4, 2022, 9:17 PM CDT (02:17 UTC)
Expired: May 4, 2022, 9:45 PM CDT
In force: 28 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 178

Counties Callahan County, TX, Coke County, TX, Crockett County, TX, Haskell County, TX, Irion County, TX, Jones County, TX, Nolan County, TX, Runnels County, TX, Schleicher County, TX, Shackelford County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 90 km from the middle of the area, began a volume at 02:21 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, 2.3 hours before the alert went out and 274 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: 2315 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1365 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 12.4

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 4, 7:16 PM CDT	Mesoscale Discussion	SPC	Coke, Crockett, Edwards, Fisher, Glasscock, Haskell and 18 more	119 min
May 4, 7:36 PM CDT	Mesoscale Discussion	SPC	Baylor, Childress, Collingsworth, Cottle, Foard, Hall and 4 more	84 min
May 4, 9:07 PM CDT	Severe Thunderstorm Watch	SPC	Atascosa, Bandera, Bexar, Blanco, Comal, Frio and 7 more	5 hr
May 4, 9:13 PM CDT	Mesoscale Discussion	SPC	Clay, Foard, Hardeman, Montague, Wichita, Wilbarger	92 min
May 4, 9:41 PM CDT	Tornado Watch	SPC	Archer, Baylor, Clay, Foard, Hardeman, Haskell and 7 more	6 hr
May 4, 10:45 PM CDT	Mesoscale Discussion	SPC	Bexar, Medina	90 min
May 4, 11:33 PM CDT	Mesoscale Discussion	SPC	Clay, Hardeman, Montague, Wichita, Wilbarger	117 min
May 5, 9:45 AM CDT	Mesoscale Discussion	SPC	Anderson, Bell, Brazos, Burleson, Camp, Cass and 21 more	2 hr
May 5, 10:13 AM CDT	Tornado Watch	SPC	Anderson, Angelina, Bastrop, Bell, Blanco, Bowie and 54 more	8 hr
May 5, 12:57 PM CDT	Mesoscale Discussion	SPC	Anderson, Angelina, Bastrop, Brazos, Burleson, Caldwell and 32 more	63 min
May 5, 1:18 PM CDT	Mesoscale Discussion	SPC	Fannin, Lamar, Red River	87 min
May 5, 3:08 PM CDT	Mesoscale Discussion	SPC	Angelina, Brazos, Cherokee, Grimes, Houston, Madison and 7 more	2 hr
May 5, 5:53 PM CDT	Mesoscale Discussion	SPC	Austin, Bastrop, Blanco, Burleson, Caldwell, Fayette and 15 more	97 min

Nearby

Mesoscale Discussions in Texas, 2022 Every mesoscale discussion in 2022

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.