Alert archive / New Mexico / Mesoscale Discussions in 2015

Mesoscale Discussion 835

May 29, 20159 counties in New Mexico; Cimarron County, Oklahoma; 5 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 29, 2015, 1:27 PM MDT for 9 counties in New Mexico; Cimarron County, Oklahoma; 5 counties in Texas. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: May 29, 2015, 1:27 PM MDT (19:27 UTC)
Expired: May 29, 2015, 3:00 PM MDT
In force: 93 min
Issued by: the Storm Prediction Center
Chance of a watch: 60%

Counties Colfax County, NM, Curry County, NM, De Baca County, NM, Guadalupe County, NM, Harding County, NM, Mora County, NM, Quay County, NM, San Miguel County, NM, Union County, NM, Cimarron County, OK, Dallam County, TX, Deaf Smith County, TX, Hartley County, TX, Oldham County, TX, Parmer County, TX

The radar

The Cannon AFB radar (KFDX), 124 km from the middle of the area, began a volume at 19:30 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 240May 29, 2:45 PM MDT

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 7.5 hours before the alert went out and 199 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: 1635 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: -36 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 29, 2:44 PM MDT	Severe Thunderstorm Watch	SPC	Curry, De Baca, Guadalupe, Harding, Quay, Roosevelt and 2 more	7 hr
May 28, 8:58 PM MDT	Mesoscale Discussion	SPC	Atoka, Bryan, Choctaw, Johnston, Marshall	2 hr
May 29, 11:33 AM MDT	Mesoscale Discussion	SPC	LeFlore, McCurtain	87 min
May 29, 1:09 PM MDT	Tornado Watch	SPC	Adair, Cherokee, Craig, Delaware, Haskell, Latimer and 7 more	5 hr
May 29, 3:48 PM MDT	Mesoscale Discussion	SPC	Adair, Choctaw, Latimer, LeFlore, McCurtain, Pushmataha and 1 more	87 min
May 28, 6:58 PM MDT	Severe Thunderstorm Watch	SPC	Bandera, Blanco, Coleman, Concho, Crockett, Edwards and 16 more	5 hr
May 28, 9:19 PM MDT	Severe Thunderstorm Watch	SPC	Atascosa, Bastrop, Bexar, Burnet, Caldwell, Comal and 20 more	7 hr
May 29, 12:22 AM MDT	Mesoscale Discussion	SPC	Atascosa, Bee, Brooks, Dimmit, Duval, Hidalgo and 12 more	83 min

Nearby

Mesoscale Discussions in New Mexico, 2015 Mesoscale Discussions in Texas, 2015 Mesoscale Discussions in Oklahoma, 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.