Alert archive / Texas / Mesoscale Discussions in 2018

Mesoscale Discussion 1534

October 6, 2018Eddy County, New Mexico; 7 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Oct 6, 2018, 8:21 PM MDT for Eddy County, New Mexico; 7 counties in Texas. It was in force for 54 min.

The area

The outline as issued.

The facts

Issued: Oct 6, 2018, 8:21 PM MDT (02:21 UTC)
Expired: Oct 6, 2018, 9:15 PM MDT
In force: 54 min
Issued by: the Storm Prediction Center

Counties Eddy County, NM, Andrews County, TX, Crane County, TX, Ector County, TX, Loving County, TX, Reeves County, TX, Ward County, TX, Winkler County, TX

The radar

The Midland/Odessa radar (KMAF), 121 km from the middle of the area, began a volume at 02:21 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, 2.4 hours before the alert went out and 120 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: 1317 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1066 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.9

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
Oct 7, 1:07 PM MDT	Mesoscale Discussion	SPC	Chaves, Curry, De Baca, Eddy, Lea, Roosevelt	113 min
Oct 7, 1:53 PM MDT	Severe Thunderstorm Watch	SPC	Chaves, Curry, De Baca, Eddy, Guadalupe, Harding and 5 more	9 hr
Oct 7, 4:59 PM MDT	Mesoscale Discussion	SPC	Chaves, Curry, De Baca, Doña Ana, Eddy, Guadalupe and 5 more	91 min
Oct 7, 2:47 PM MDT	Mesoscale Discussion	SPC	Clay, Cooke, Foard, Grayson, Hardeman, Montague and 2 more	2 hr

Nearby

Mesoscale Discussions in Texas, 2018 Mesoscale Discussions in New Mexico, 2018 Every mesoscale discussion in 2018

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.