Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 675

May 21, 20164 counties in New Mexico; 27 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 21, 2016, 11:05 PM MDT for 4 counties in New Mexico; 27 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 21, 2016, 11:05 PM MDT (05:05 UTC)
Expired
May 22, 2016, 1:30 AM MDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 31 counties

Curry County, NM, Lea County, NM, Quay County, NM, Roosevelt County, NM, Andrews County, TX, Armstrong County, TX, Bailey County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Dallam County, TX, Dawson County, TX, Deaf Smith County, TX, Gaines County, TX, Hale County, TX, Hansford County, TX, Hartley County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Moore County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Sherman County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX

The radar

The Cannon AFB radar (KFDX), 95 km from the middle of the area, began a volume at 05:05 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 00:00Z, 5.1 hours before the alert went out and 147 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-pSkew-T log-p diagram, Amarillo Airport, TX at 00:00Z on 2016-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 903 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 2016-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
903 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
2135 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.0

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.

IssuedProductOfficeCountiesLasted
May 21, 8:29 PM MDTMesoscale DiscussionSPCArmstrong, Bailey, Carson, Castro, Cochran, Dallam and 17 more61 min
May 22, 12:39 PM MDTMesoscale DiscussionSPCArmstrong, Bailey, Briscoe, Carson, Castro, Collingsworth and 23 more2 hr
May 22, 1:48 PM MDTTornado WatchSPCArmstrong, Borden, Briscoe, Carson, Castro, Childress and 40 more9 hr
May 22, 5:25 PM MDTMesoscale DiscussionSPCCoke, Crockett, Glasscock, Irion, Reagan, Schleicher and 5 more2 hr
May 22, 5:55 PM MDTTornado WatchSPCCoke, Crockett, Glasscock, Irion, Midland, Pecos and 7 more5 hr

Nearby

Mesoscale Discussions in Texas, 2016Mesoscale Discussions in New Mexico, 2016Every mesoscale discussion in 2016

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.