Alert archive / Texas / Mesoscale Discussions in 2023

Mesoscale Discussion 2154

September 16, 2023Lea County, Roosevelt County, New Mexico; 17 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Sep 16, 2023, 12:16 AM MDT for Lea County, Roosevelt County, New Mexico; 17 counties in Texas. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued: Sep 16, 2023, 12:16 AM MDT (06:16 UTC)
Expired: Sep 16, 2023, 1:45 AM MDT
In force: 89 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 684

Counties Lea County, NM, Roosevelt County, NM, Andrews County, TX, Bailey County, TX, Cochran County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Floyd County, TX, Gaines County, TX, Hale County, TX, Hockley County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Motley County, TX, Terry County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 69 km from the middle of the area, began a volume at 06:16 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

Midland Regional, TX (KMAF), launched 00:00Z, 6.3 hours before the alert went out and 150 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: 1339 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1473 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.1

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.

Issued	Product	Office	Counties	Lasted
Sep 15, 7:21 PM MDT	Mesoscale Discussion	SPC	Curry, Quay	114 min
Sep 15, 9:56 PM MDT	Mesoscale Discussion	SPC	Lea, Roosevelt	2 hr
Sep 16, 4:38 AM MDT	Mesoscale Discussion	SPC	Coke, Concho, Fisher, Glasscock, Irion, Mitchell and 5 more	67 min
Sep 16, 4:41 AM MDT	Severe Thunderstorm Watch	SPC	Brown, Callahan, Coke, Coleman, Concho, Irion and 11 more	5 hr
Sep 16, 6:48 AM MDT	Mesoscale Discussion	SPC	Brown, Coleman, Concho, Kimble, McCulloch, Mason and 5 more	87 min
Sep 16, 7:51 AM MDT	Mesoscale Discussion	SPC	Brown, Burnet, Concho, Gillespie, Lampasas, Llano and 5 more	84 min

Nearby

Mesoscale Discussions in Texas, 2023 Mesoscale Discussions in New Mexico, 2023 Every mesoscale discussion in 2023

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.