Alert archive / Texas / Mesoscale Discussions in 2012

Mesoscale Discussion 1178

June 15, 2012Curry County, Lea County, Roosevelt County, New Mexico; 21 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 15, 2012, 5:51 PM MDT for Curry County, Lea County, Roosevelt County, New Mexico; 21 counties in Texas. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued
Jun 15, 2012, 5:51 PM MDT (23:51 UTC)
Expired
Jun 15, 2012, 7:15 PM MDT
In force
84 min
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 24 counties

Curry County, NM, Lea County, NM, Roosevelt County, NM, Bailey County, TX, Borden County, TX, Briscoe County, TX, Castro County, TX, Cochran County, TX, Crosby County, TX, Dawson County, TX, Deaf Smith County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Hale County, TX, Hockley County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Parmer County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 70 km from the middle of the area, began a volume at 23:53 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, 11.9 hours before the alert went out and 208 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 2012-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 536 joules per kilogram.LCLLFCEL10008507005003002001001 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 2012-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 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
536 J/kg
Mixed-layer CIN
-474 J/kg
Mixed-layer LCL
1789 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

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.

IssuedProductOfficeCountiesLasted
Jun 14, 7:12 PM MDTMesoscale DiscussionSPCArmstrong, Bailey, Briscoe, Carson, Castro, Childress and 40 more93 min
Jun 14, 8:20 PM MDTSevere Thunderstorm WatchSPCArcher, Baylor, Callahan, Clay, Eastland, Fisher and 15 more5 hr
Jun 15, 12:40 AM MDTMesoscale DiscussionSPCArcher, Baylor, Callahan, Clay, Eastland, Fisher and 11 more65 min
Jun 15, 12:41 PM MDTMesoscale DiscussionSPCAnderson, Angelina, Bowie, Camp, Cass, Cherokee and 18 more64 min

Nearby

Mesoscale Discussions in Texas, 2012Mesoscale Discussions in New Mexico, 2012Every mesoscale discussion in 2012

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.