Alert archive / Texas / Mesoscale Discussions in 2017

Mesoscale Discussion 1150

June 25, 20179 counties in New Mexico; 13 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 25, 2017, 8:28 PM MDT for 9 counties in New Mexico; 13 counties in Texas. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Jun 25, 2017, 8:28 PM MDT (02:28 UTC)
Expired: Jun 25, 2017, 10:00 PM MDT
In force: 92 min
Issued by: the Storm Prediction Center

All 22 counties

Chaves County, NM, Curry County, NM, De Baca County, NM, Eddy County, NM, Guadalupe County, NM, Harding County, NM, Lea County, NM, Quay County, NM, Roosevelt County, NM, Bailey County, TX, Castro County, TX, Cochran County, TX, Dallam County, TX, Deaf Smith County, TX, Gaines County, TX, Hartley County, TX, Hockley County, TX, Lamb County, TX, Oldham County, TX, Parmer County, TX, Terry County, TX, Yoakum County, TX

The radar

The Cannon AFB radar (KFDX), 41 km from the middle of the area, began a volume at 02:23 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, 2.5 hours before the alert went out and 222 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: 421 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 1347 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 182 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.9

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
Jun 25, 10:54 PM MDT	Mesoscale Discussion	SPC	Lea	36 min
Jun 26, 5:40 PM MDT	Mesoscale Discussion	SPC	Colfax, Union	2 hr

Nearby

Mesoscale Discussions in Texas, 2017 Mesoscale Discussions in New Mexico, 2017 Every mesoscale discussion in 2017

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.