Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 1027

May 25, 2008Lea County, Roosevelt County, New Mexico; 9 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 25, 2008, 2:11 PM MDT for Lea County, Roosevelt County, New Mexico; 9 counties in Texas. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: May 25, 2008, 2:11 PM MDT (20:11 UTC)
Expired: May 25, 2008, 3:45 PM MDT
In force: 94 min
Issued by: the Storm Prediction Center

Counties Lea County, NM, Roosevelt County, NM, Brewster County, TX, Cochran County, TX, Jeff Davis County, TX, Loving County, TX, Presidio County, TX, Reeves County, TX, Ward County, TX, Winkler County, TX, Yoakum County, TX

The radar

The Midland/Odessa radar (KMAF), 130 km from the middle of the area, began a volume at 20:15 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.

Severe Thunderstorm Watch 362May 25, 2:30 PM MDT

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 8.2 hours before the alert went out and 129 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: 2866 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 751 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 175 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 7.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 10:55 AM MDT	Mesoscale Discussion	SPC	Curry, Quay	65 min
May 25, 2:32 PM MDT	Severe Thunderstorm Watch	SPC	Curry, Lea, Roosevelt	7 hr
May 25, 2:50 PM MDT	Mesoscale Discussion	SPC	Lea, Roosevelt	85 min
May 24, 7:04 PM MDT	Mesoscale Discussion	SPC	Baylor, Callahan, Coke, Coleman, Fisher, Foard and 21 more	116 min
May 24, 7:29 PM MDT	Severe Thunderstorm Watch	SPC	Archer, Baylor, Childress, Collingsworth, Cottle, Dickens and 8 more	6 hr
May 24, 10:00 PM MDT	Mesoscale Discussion	SPC	Archer, Callahan, Clay, Eastland, Fisher, Haskell and 11 more	60 min
May 25, 11:39 AM MDT	Tornado Watch	SPC	Armstrong, Carson, Dallam, Deaf Smith, Hansford, Hartley and 9 more	5 hr
May 25, 4:29 PM MDT	Mesoscale Discussion	SPC	Armstrong, Carson, Deaf Smith, Donley, Gray, Hansford and 11 more	61 min
May 25, 4:51 PM MDT	Tornado Watch	SPC	Armstrong, Carson, Collingsworth, Dallam, Deaf Smith, Donley and 14 more	7 hr

Nearby

Mesoscale Discussions in Texas, 2008 Mesoscale Discussions in New Mexico, 2008 Every mesoscale discussion in 2008

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.