Alert archive / Texas / Mesoscale Discussions in 2019

Mesoscale Discussion 573

May 7, 2019Beaver County, Oklahoma; 17 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 7, 2019, 3:41 PM CDT for Beaver County, Oklahoma; 17 counties in Texas. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: May 7, 2019, 3:41 PM CDT (20:41 UTC)
Expired: May 7, 2019, 5:15 PM CDT
In force: 94 min
Issued by: the Storm Prediction Center

Counties Beaver County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 50 km from the middle of the area, began a volume at 20:43 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.7 hours before the alert went out and 50 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: 334 J/kg
Mixed-layer CIN: -280 J/kg
Mixed-layer LCL: 2060 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 6, 8:50 PM CDT	Mesoscale Discussion	SPC	Beaver, Harper, Texas, Woods	55 min
May 6, 10:18 PM CDT	Mesoscale Discussion	SPC	Craig, Nowata, Ottawa	57 min
May 6, 11:50 PM CDT	Mesoscale Discussion	SPC	Craig, Delaware, Mayes	55 min
May 7, 11:04 AM CDT	Mesoscale Discussion	SPC	Beaver, Harper, Texas	116 min
May 7, 1:28 PM CDT	Tornado Watch	SPC	Beaver, Texas	9 hr
May 7, 2:11 PM CDT	Mesoscale Discussion	SPC	Grant, Kay	2 hr
May 7, 3:31 PM CDT	Tornado Watch	SPC	Alfalfa, Ellis, Grant, Harper, Kay, Woods and 1 more	6 hr
May 7, 4:47 PM CDT	Tornado Watch	SPC	Cimarron	5 hr
May 7, 5:24 PM CDT	Mesoscale Discussion	SPC	Beckham, Custer, Dewey, Ellis, Greer, Kiowa and 3 more	66 min
May 7, 5:36 PM CDT	Mesoscale Discussion	SPC	Beaver, Texas	54 min
May 7, 5:38 PM CDT	Tornado Watch	SPC	Beckham, Blaine, Caddo, Canadian, Custer, Dewey and 11 more	4 hr
May 7, 6:01 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Grant, Harper, Woods	89 min
May 7, 1:39 PM CDT	Mesoscale Discussion	SPC	Andrews, Crane, Ector, Howard, Martin, Midland and 3 more	2 hr
May 7, 2:22 PM CDT	Mesoscale Discussion	SPC	Bailey, Briscoe, Castro, Cochran, Crosby, Dawson and 12 more	83 min
May 7, 3:00 PM CDT	Tornado Watch	SPC	Andrews, Bailey, Borden, Briscoe, Castro, Childress and 43 more	8 hr
May 7, 5:01 PM CDT	Mesoscale Discussion	SPC	Andrews, Borden, Coke, Crane, Crockett, Dawson and 23 more	89 min

Nearby

Mesoscale Discussions in Texas, 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.