Alert archive / Texas / Mesoscale Discussions in 2014

Mesoscale Discussion 663

May 22, 20145 states

The Storm Prediction Center issued this mesoscale discussion at May 22, 2014, 4:55 PM MDT for 5 states. It was in force for 65 min.

The area

The outline as issued.

The facts

Issued: May 22, 2014, 4:55 PM MDT (22:55 UTC)
Expired: May 22, 2014, 6:00 PM MDT
In force: 65 min
Issued by: the Storm Prediction Center

Counties Baca County, CO, Bent County, CO, Prowers County, CO, Morton County, KS, Chaves County, NM, De Baca County, NM, Quay County, NM, Cimarron County, OK, Texas County, OK, Dallam County, TX, Deaf Smith County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Moore County, TX, Oldham County, TX, Potter County, TX, Sherman County, TX

The radar

The Cannon AFB radar (KFDX), 109 km from the middle of the area, began a volume at 22:54 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 177May 22, 6:05 PM MDT

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 10.9 hours before the alert went out and 135 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: 679 J/kg
Mixed-layer CIN: -247 J/kg
Mixed-layer LCL: 1350 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 149 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 22, 11:32 AM MDT	Mesoscale Discussion	SPC	Crowley, Huerfano, Las Animas, Otero, Pueblo	88 min
May 22, 11:53 AM MDT	Severe Thunderstorm Watch	SPC	Baca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more	7 hr
May 22, 12:07 PM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 6 more	83 min
May 22, 12:34 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 6 more	6 hr
May 22, 5:50 PM MDT	Mesoscale Discussion	SPC	Kit Carson, Yuma	55 min
May 21, 9:49 PM MDT	Mesoscale Discussion	SPC	Decatur, Ellis, Gove, Graham, Jewell, Lincoln and 12 more	86 min
May 22, 1:16 AM MDT	Mesoscale Discussion	SPC	Atchison, Brown, Clay, Cloud, Doniphan, Ellis and 22 more	119 min
May 22, 4:12 PM MDT	Mesoscale Discussion	SPC	Allen, Bourbon, Chautauqua, Cherokee, Cowley, Crawford and 6 more	93 min
May 22, 1:51 PM MDT	Mesoscale Discussion	SPC	Eddy, Lea	54 min
May 22, 1:22 PM MDT	Mesoscale Discussion	SPC	Alfalfa, Dewey, Ellis, Grant, Major, Roger Mills and 2 more	113 min
May 21, 6:15 PM MDT	Mesoscale Discussion	SPC	Andrews, Armstrong, Borden, Brewster, Briscoe, Carson and 30 more	60 min

Nearby

Mesoscale Discussions in Texas, 2014 Mesoscale Discussions in Colorado, 2014 Mesoscale Discussions in New Mexico, 2014 Every mesoscale discussion in 2014

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.