Alert archive / Texas / Mesoscale Discussions in 2019

Mesoscale Discussion 769

May 24, 201931 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 24, 2019, 1:10 PM CDT for 31 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 24, 2019, 1:10 PM CDT (18:10 UTC)
Expired: May 24, 2019, 3:15 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center
Chance of a watch: 60%

All 31 counties

Borden County, TX, Childress County, TX, Cottle County, TX, Crane County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Ector County, TX, Fisher County, TX, Floyd County, TX, Garza County, TX, Glasscock County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Howard County, TX, Kent County, TX, King County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Pecos County, TX, Reagan County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Terry County, TX, Upton County, TX

The radar

The Midland/Odessa radar (KMAF), 85 km from the middle of the area, began a volume at 18:13 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.

Tornado Watch 232May 24, 1:35 PM CDT

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 6.2 hours before the alert went out and 85 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: 2285 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 805 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 6.8

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 23, 8:32 PM CDT	Mesoscale Discussion	SPC	Armstrong, Briscoe, Collingsworth, Crosby, Donley, Floyd and 12 more	88 min
May 23, 9:43 PM CDT	Severe Thunderstorm Watch	SPC	Bailey, Briscoe, Castro, Childress, Cochran, Cottle and 13 more	5 hr
May 23, 11:08 PM CDT	Mesoscale Discussion	SPC	Briscoe, Childress, Collingsworth, Cottle, Crosby, Dickens and 9 more	97 min
May 24, 1:34 PM CDT	Tornado Watch	SPC	Armstrong, Borden, Briscoe, Carson, Childress, Collingsworth and 23 more	7 hr
May 24, 3:22 PM CDT	Mesoscale Discussion	SPC	Andrews, Brewster, Coke, Crane, Crockett, Ector and 15 more	113 min
May 24, 3:51 PM CDT	Mesoscale Discussion	SPC	Armstrong, Borden, Briscoe, Carson, Childress, Collingsworth and 21 more	114 min
May 24, 4:43 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Foard, Hardeman, Knox, Throckmorton and 2 more	32 min
May 24, 4:50 PM CDT	Tornado Watch	SPC	Archer, Baylor, Clay, Foard, Hardeman, Knox and 2 more	5 hr

Nearby

Mesoscale Discussions in Texas, 2019 Every mesoscale discussion in 2019

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.