Alert archive / Texas / Mesoscale Discussions in 2019

Mesoscale Discussion 696

May 19, 20196 counties in New Mexico; Cimarron County, Oklahoma; 27 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 19, 2019, 10:56 PM MDT for 6 counties in New Mexico; Cimarron County, Oklahoma; 27 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 19, 2019, 10:56 PM MDT (04:56 UTC)
Expired: May 20, 2019, 1:00 AM MDT
In force: 2 hr
Issued by: the Storm Prediction Center
Chance of a watch: 80%

All 34 counties

Curry County, NM, Harding County, NM, Lea County, NM, Quay County, NM, Roosevelt County, NM, Union County, NM, Cimarron County, OK, Andrews County, TX, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Dallam County, TX, Deaf Smith County, TX, Gaines County, TX, Hale County, TX, Hansford County, TX, Hartley County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Moore County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Sherman County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX

The radar

The Cannon AFB radar (KFDX), 75 km from the middle of the area, began a volume at 04:55 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 195May 20, 12:55 AM MDT

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 4.9 hours before the alert went out and 299 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2484 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 167 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 20, 12:57 AM MDT	Severe Thunderstorm Watch	SPC	Chaves, Curry, De Baca, Eddy, Guadalupe, Harding and 5 more	8 hr
May 20, 1:15 PM MDT	Mesoscale Discussion	SPC	Colfax, Harding, Union	90 min
May 20, 5:14 AM MDT	Mesoscale Discussion	SPC	Alfalfa, Blaine, Custer, Dewey, Ellis, Garfield and 7 more	2 hr
May 20, 6:09 AM MDT	Severe Thunderstorm Watch	SPC	Alfalfa, Blaine, Custer, Dewey, Ellis, Garfield and 11 more	6 hr
May 20, 9:41 AM MDT	Mesoscale Discussion	SPC	Beckham, Greer, Harmon, Jackson, Roger Mills	3 hr
May 20, 10:17 AM MDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Canadian, Carter, Cleveland and 20 more	2 hr
May 20, 10:35 AM MDT	Mesoscale Discussion	SPC	Alfalfa, Blaine, Creek, Custer, Dewey, Ellis and 20 more	85 min
May 20, 12:21 PM MDT	Mesoscale Discussion	SPC	Caddo, Canadian, Cleveland, Comanche, Grady, Kiowa and 3 more	24 min
May 20, 12:37 PM MDT	Tornado Watch PDS	SPC	Atoka, Beckham, Blaine, Bryan, Caddo, Canadian and 41 more	8 hr
May 20, 2:46 PM MDT	Mesoscale Discussion	SPC	Canadian, Greer, Harmon, Jackson, Kingfisher, Kiowa and 1 more	59 min
May 20, 3:35 PM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Delaware, Mayes, Ottawa and 2 more	115 min
May 20, 4:14 PM MDT	Tornado Watch	SPC	Adair, Cherokee, Craig, Delaware, Haskell, Latimer and 11 more	8 hr
May 20, 4:44 PM MDT	Mesoscale Discussion	SPC	Canadian, Greer, Harmon, Jackson, Kingfisher, Kiowa and 1 more	61 min
May 19, 6:21 PM MDT	Mesoscale Discussion	SPC	Harrison, Panola	84 min
May 20, 11:36 AM MDT	Tornado Watch PDS	SPC	Armstrong, Borden, Briscoe, Childress, Collingsworth, Cottle and 34 more	9 hr
May 20, 12:37 PM MDT	Mesoscale Discussion	SPC	Briscoe, Childress, Collingsworth, Cottle, Crosby, Dickens and 11 more	53 min
May 20, 4:08 PM MDT	Mesoscale Discussion	SPC	Crane, Crockett, Glasscock, Midland, Reagan, Terrell and 1 more	2 hr
May 20, 4:50 PM MDT	Mesoscale Discussion	SPC	Borden, Childress, Collingsworth, Cottle, Crosby, Dawson and 18 more	115 min

Nearby

Mesoscale Discussions in Texas, 2019 Mesoscale Discussions in New Mexico, 2019 Mesoscale Discussions in Oklahoma, 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.