Alert archive / Texas / Mesoscale Discussions in 2019

Mesoscale Discussion 771

May 24, 201921 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 24, 2019, 3:22 PM CDT for 21 counties in Texas. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued
May 24, 2019, 3:22 PM CDT (20:22 UTC)
Expired
May 24, 2019, 5:15 PM CDT
In force
113 min
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 21 counties

Andrews County, TX, Brewster County, TX, Coke County, TX, Crane County, TX, Crockett County, TX, Ector County, TX, Glasscock County, TX, Howard County, TX, Irion County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Sterling County, TX, Terrell County, TX, Tom Green County, TX, Upton County, TX, Ward County, TX, Winkler County, TX

The radar

The Midland/Odessa radar (KMAF), 149 km from the middle of the area, began a volume at 20:22 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

Midland Regional, TX (KMAF), launched 12:00Z, 8.4 hours before the alert went out and 150 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-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2019-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2285 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 2019-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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.

IssuedProductOfficeCountiesLasted
May 23, 8:32 PM CDTMesoscale DiscussionSPCArmstrong, Briscoe, Collingsworth, Crosby, Donley, Floyd and 12 more88 min
May 23, 9:43 PM CDTSevere Thunderstorm WatchSPCBailey, Briscoe, Castro, Childress, Cochran, Cottle and 13 more5 hr
May 23, 11:08 PM CDTMesoscale DiscussionSPCBriscoe, Childress, Collingsworth, Cottle, Crosby, Dickens and 9 more97 min
May 24, 1:10 PM CDTMesoscale DiscussionSPCBorden, Childress, Cottle, Crane, Crosby, Dawson and 25 more2 hr
May 24, 1:34 PM CDTTornado WatchSPCArmstrong, Borden, Briscoe, Carson, Childress, Collingsworth and 23 more7 hr
May 24, 3:51 PM CDTMesoscale DiscussionSPCArmstrong, Borden, Briscoe, Carson, Childress, Collingsworth and 21 more114 min
May 24, 4:43 PM CDTMesoscale DiscussionSPCArcher, Baylor, Foard, Hardeman, Knox, Throckmorton and 2 more32 min
May 24, 4:50 PM CDTTornado WatchSPCArcher, Baylor, Clay, Foard, Hardeman, Knox and 2 more5 hr

Nearby

Mesoscale Discussions in Texas, 2019Every 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.