Alert archive / Texas / Mesoscale Discussions in 2019

Mesoscale Discussion 922

June 1, 2019Union County, New Mexico; Cimarron County, Oklahoma; 18 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 1, 2019, 12:32 PM MDT for Union County, New Mexico; Cimarron County, Oklahoma; 18 counties in Texas. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: Jun 1, 2019, 12:32 PM MDT (18:32 UTC)
Expired: Jun 1, 2019, 2:30 PM MDT
In force: 118 min
Issued by: the Storm Prediction Center
Chance of a watch: 60%

Counties Union County, NM, Cimarron County, OK, Armstrong County, TX, Carson County, TX, Childress County, TX, Collingsworth County, TX, Dallam County, TX, Donley County, TX, Gray County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Moore County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 78 km from the middle of the area, began a volume at 18:32 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 304Jun 1, 12:55 PM MDT

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 6.5 hours before the alert went out and 79 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: 1470 J/kg
Mixed-layer CIN: -116 J/kg
Mixed-layer LCL: 1268 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 31, 7:53 PM MDT	Mesoscale Discussion	SPC	Eddy	97 min
Jun 1, 12:29 PM MDT	Severe Thunderstorm Watch	SPC	Bernalillo, Chaves, Colfax, Curry, De Baca, Guadalupe and 13 more	8 hr
Jun 1, 2:36 PM MDT	Mesoscale Discussion	SPC	Bernalillo, Colfax, De Baca, Guadalupe, Harding, Lincoln and 10 more	114 min
Jun 1, 3:36 PM MDT	Mesoscale Discussion	SPC	Eddy, Lea	24 min
Jun 1, 3:50 PM MDT	Severe Thunderstorm Watch	SPC	Eddy, Lea	8 hr
Jun 1, 10:49 AM MDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Canadian, Comanche, Custer and 9 more	116 min
Jun 1, 12:53 PM MDT	Mesoscale Discussion	SPC	Cotton, Jackson, Tillman	97 min
Jun 1, 12:53 PM MDT	Severe Thunderstorm Watch	SPC	Beaver, Cimarron, Texas	9 hr
Jun 1, 4:52 PM MDT	Mesoscale Discussion	SPC	Collin, Dallas, Denton, Ellis, Johnson, Parker and 2 more	53 min
Jun 1, 5:53 PM MDT	Mesoscale Discussion	SPC	Bailey, Borden, Castro, Cochran, Crosby, Dawson and 12 more	67 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.