Alert archive / Texas / Mesoscale Discussions in 2022

Mesoscale Discussion 616

May 1, 202216 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 1, 2022, 7:57 PM CDT for 16 counties in Texas. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: May 1, 2022, 7:57 PM CDT (00:57 UTC)
Expired: May 1, 2022, 9:30 PM CDT
In force: 93 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 168

Counties Callahan County, TX, Coke County, TX, Coleman County, TX, Eastland County, TX, Fisher County, TX, Haskell County, TX, Jones County, TX, Mitchell County, TX, Nolan County, TX, Runnels County, TX, Scurry County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX

The radar

The Dyess AFB radar (KDYX), 59 km from the middle of the area, began a volume at 00:57 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 watches that followed

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

Severe Thunderstorm Watch 170May 1, 8:20 PM CDT

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.0 hours before the alert went out and 233 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: 1553 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1349 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

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 1, 8:22 PM CDT	Severe Thunderstorm Watch	SPC	Brown, Callahan, Coleman, Comanche, Concho, Coryell and 23 more	6 hr
May 1, 10:30 PM CDT	Mesoscale Discussion	SPC	Armstrong, Carson, Collingsworth, Dallam, Donley, Gray and 10 more	2 hr
May 1, 11:07 PM CDT	Mesoscale Discussion	SPC	Dimmit, Maverick, Zavala	113 min
May 1, 11:44 PM CDT	Mesoscale Discussion	SPC	Bell, Bosque, Brown, Burnet, Callahan, Comanche and 22 more	2 hr
May 2, 1:20 PM CDT	Mesoscale Discussion	SPC	Bowie, Camp, Cass, Collin, Delta, Fannin and 11 more	2 hr
May 2, 5:08 PM CDT	Mesoscale Discussion	SPC	Delta, Fannin, Lamar, Red River	67 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.