Alert archive / Texas / Mesoscale Discussions in 2022

Mesoscale Discussion 907

May 24, 202219 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 24, 2022, 8:43 PM CDT for 19 counties in Texas. It was in force for 32 min.

The area

The outline as issued.

The facts

Issued: May 24, 2022, 8:43 PM CDT (01:43 UTC)
Expired: May 24, 2022, 9:15 PM CDT
In force: 32 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch likely
Chance of a watch: 95%

Counties Atascosa County, TX, Bexar County, TX, Blanco County, TX, Caldwell County, TX, Comal County, TX, Dimmit County, TX, Frio County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kendall County, TX, La Salle County, TX, Maverick County, TX, McMullen County, TX, Medina County, TX, Webb County, TX, Wilson County, TX, Zavala County, TX

The radar

The Laughlin AFB radar (KDFX), 111 km from the middle of the area, began a volume at 01:44 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 1.7 hours before the alert went out and 166 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: 2912 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 1337 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.1

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 24, 7:11 PM CDT	Mesoscale Discussion	SPC	Bosque, Coryell, Hamilton, Lampasas, Somervell	94 min
May 24, 7:23 PM CDT	Mesoscale Discussion	SPC	Coke, Concho, Irion, Tom Green	2 hr
May 24, 8:55 PM CDT	Severe Thunderstorm Watch	SPC	Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 26 more	6 hr
May 24, 9:20 PM CDT	Mesoscale Discussion	SPC	Bosque, Brown, Coleman, Collin, Comanche, Concho and 41 more	25 min
May 24, 9:42 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Bell, Brazos, Burleson, Falls, Freestone and 9 more	5 hr
May 24, 11:13 PM CDT	Mesoscale Discussion	SPC	Atascosa, Austin, Bandera, Bastrop, Bexar, Brazos and 28 more	2 hr
May 24, 11:35 PM CDT	Severe Thunderstorm Watch	SPC	Aransas, Austin, Bee, Brazoria, Calhoun, Chambers and 31 more	5 hr
May 25, 1:38 AM CDT	Mesoscale Discussion	SPC	Angelina, Hardin, Jasper, Liberty, Montgomery, Newton and 7 more	2 hr
May 25, 2:20 AM CDT	Mesoscale Discussion	SPC	Brooks, Dimmit, Duval, Jim Wells, Kleberg, La Salle and 5 more	85 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.