Alert archive / Texas / Mesoscale Discussions in 2010

Mesoscale Discussion 71

January 28, 20108 counties in New Mexico; 19 counties in Oklahoma; 33 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jan 28, 2010, 6:01 AM MST for 8 counties in New Mexico; 19 counties in Oklahoma; 33 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Jan 28, 2010, 6:01 AM MST (13:01 UTC)
Expired: Jan 28, 2010, 11:00 AM MST
In force: 5 hr
Issued by: the Storm Prediction Center

All 60 counties

Curry County, NM, De Baca County, NM, Guadalupe County, NM, Harding County, NM, Mora County, NM, Quay County, NM, Roosevelt County, NM, San Miguel County, NM, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, McClain County, OK, Oklahoma County, OK, Pottawatomie County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hardeman County, TX, Hartley County, TX, Hemphill County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Lubbock County, TX, Moore County, TX, Motley County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 50 km from the middle of the area, began a volume at 13:05 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 12:00Z, 1.0 hours before the alert went out and 350 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: 179 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 491 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 369 m²/s²
0-3 km storm-relative helicity: 419 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

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
Jan 27, 11:22 PM MST	Mesoscale Discussion	SPC	Curry, De Baca, Guadalupe, Harding, Lincoln, Mora and 5 more	6 hr
Jan 28, 9:48 AM MST	Mesoscale Discussion	SPC	Beaver, Cimarron, Ellis, Harper, Texas, Woods and 1 more	5 hr
Jan 28, 11:18 AM MST	Mesoscale Discussion	SPC	Adair, Canadian, Carter, Cherokee, Cleveland, Coal and 36 more	4 hr
Jan 28, 4:05 AM MST	Mesoscale Discussion	SPC	Andrews, Borden, Brewster, Coke, Crane, Crockett and 25 more	2 hr
Jan 28, 8:52 AM MST	Mesoscale Discussion	SPC	Concho, Edwards, Gillespie, Kerr, Kimble, Llano and 9 more	83 min
Jan 28, 12:47 PM MST	Mesoscale Discussion	SPC	Edwards, Kimble, Kinney, Maverick, Menard, Real and 4 more	118 min
Jan 28, 1:36 PM MST	Mesoscale Discussion	SPC	Bosque, Collin, Coryell, Dallas, Delta, Denton and 19 more	84 min
Jan 28, 1:39 PM MST	Severe Thunderstorm Watch	SPC	Bosque, Coryell, Dallas, Ellis, Hamilton, Hill and 11 more	4 hr
Jan 28, 2:15 PM MST	Tornado Watch	SPC	Bandera, Blanco, Burnet, Concho, Edwards, Gillespie and 14 more	7 hr
Jan 28, 4:06 PM MST	Mesoscale Discussion	SPC	Coryell, Ellis, Falls, Hamilton, Hill, Kaufman and 6 more	114 min

Nearby

Mesoscale Discussions in Texas, 2010 Mesoscale Discussions in Oklahoma, 2010 Mesoscale Discussions in New Mexico, 2010 Every mesoscale discussion in 2010

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.