Alert archive / New Mexico / Mesoscale Discussions in 2015

Mesoscale Discussion 694

May 18, 20157 counties in New Mexico; Bailey County, Cochran County, Parmer County, Texas

The Storm Prediction Center issued this mesoscale discussion at May 18, 2015, 11:53 PM MDT for 7 counties in New Mexico; Bailey County, Cochran County, Parmer County, Texas. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: May 18, 2015, 11:53 PM MDT (05:53 UTC)
Expired: May 19, 2015, 1:30 AM MDT
In force: 97 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Chaves County, NM, Curry County, NM, De Baca County, NM, Guadalupe County, NM, Quay County, NM, Roosevelt County, NM, San Miguel County, NM, Bailey County, TX, Cochran County, TX, Parmer County, TX

The radar

The Cannon AFB radar (KFDX), 81 km from the middle of the area, began a volume at 05:53 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

Albuquerq/Krtlnd, NM (KABQ), launched 00:00Z, 5.9 hours before the alert went out and 214 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: 5 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 3123 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 253 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 18, 8:01 PM MDT	Mesoscale Discussion	SPC	Lea	89 min
May 19, 4:13 AM MDT	Mesoscale Discussion	SPC	Curry, Quay	92 min
May 18, 7:00 PM MDT	Mesoscale Discussion	SPC	Bell, Blanco, Burnet, Concho, Coryell, Crockett and 12 more	2 hr
May 19, 1:15 AM MDT	Mesoscale Discussion	SPC	Crockett, Irion, Reagan, Schleicher, Sutton, Tom Green	90 min
May 19, 12:02 PM MDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Fisher, Foard, Hardeman and 12 more	118 min
May 19, 12:32 PM MDT	Tornado Watch	SPC	Archer, Baylor, Clay, Cooke, Foard, Hardeman and 4 more	7 hr
May 19, 1:30 PM MDT	Mesoscale Discussion	SPC	Bell, Bosque, Brown, Callahan, Coleman, Collin and 34 more	60 min
May 19, 2:33 PM MDT	Mesoscale Discussion	SPC	Armstrong, Borden, Briscoe, Carson, Castro, Childress and 27 more	117 min
May 19, 2:51 PM MDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Hardeman, Montague, Wichita and 1 more	114 min
May 19, 4:31 PM MDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Cooke, Foard, Hardeman and 6 more	89 min
May 19, 4:56 PM MDT	Tornado Watch	SPC	Comanche, Cooke, Denton, Eastland, Erath, Hood and 7 more	6 hr

Nearby

Mesoscale Discussions in New Mexico, 2015 Mesoscale Discussions in Texas, 2015 Every mesoscale discussion in 2015

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.