Alert archive / Texas / Mesoscale Discussions in 2020

Mesoscale Discussion 567

May 11, 2020Curry County, Quay County, New Mexico; Cimarron County, Oklahoma; 38 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 11, 2020, 4:31 PM MDT for Curry County, Quay County, New Mexico; Cimarron County, Oklahoma; 38 counties in Texas. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued
May 11, 2020, 4:31 PM MDT (22:31 UTC)
Expired
May 11, 2020, 6:30 PM MDT
In force
119 min
Issued by
the Storm Prediction Center
Chance of a watch
60%
All 41 counties

Curry County, NM, Quay County, NM, Cimarron County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dallam County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hockley County, TX, Hutchinson County, TX, Kent County, TX, King County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Moore County, TX, Motley County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Terry County, TX

The radar

The Amarillo radar (KAMA), 47 km from the middle of the area, began a volume at 22:33 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.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 10.5 hours before the alert went out and 331 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, Midland Regional, TX at 12:00Z on 2020-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Midland Regional, TX at 12:00Z on 2020-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1311 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
248 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.

IssuedProductOfficeCountiesLasted
May 11, 2:38 PM MDTMesoscale DiscussionSPCChaves, Curry, Eddy, Lea, Quay, Roosevelt67 min
May 11, 4:35 PM MDTSevere Thunderstorm WatchSPCEddy, Lea6 hr
May 11, 5:18 PM MDTMesoscale DiscussionSPCEddy, Lea87 min
May 11, 5:42 PM MDTSevere Thunderstorm WatchSPCChaves, Curry, Roosevelt5 hr

Nearby

Mesoscale Discussions in Texas, 2020Mesoscale Discussions in New Mexico, 2020Mesoscale Discussions in Oklahoma, 2020Every mesoscale discussion in 2020

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.