Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 296

April 8, 200410 counties in New Mexico; 20 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 8, 2004, 12:31 PM MDT for 10 counties in New Mexico; 20 counties in Texas. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Apr 8, 2004, 12:31 PM MDT (18:31 UTC)
Expired: Apr 8, 2004, 2:30 PM MDT
In force: 119 min
Issued by: the Storm Prediction Center

All 30 counties

Chaves County, NM, Curry County, NM, De Baca County, NM, Eddy County, NM, Guadalupe County, NM, Lea County, NM, Lincoln County, NM, Quay County, NM, Roosevelt County, NM, San Miguel County, NM, Andrews County, TX, Bailey County, TX, Castro County, TX, Cochran County, TX, Dawson County, TX, Deaf Smith County, TX, Ector County, TX, Gaines County, TX, Hale County, TX, Hockley County, TX, Lamb County, TX, Loving County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Parmer County, TX, Swisher County, TX, Terry County, TX, Winkler County, TX, Yoakum County, TX

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 55Apr 8, 1:00 PM MDT

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 6.5 hours before the alert went out and 274 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1478 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 38 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.

Issued	Product	Office	Counties	Lasted
Apr 8, 1:00 PM MDT	Severe Thunderstorm Watch	SPC	Chaves, Curry, De Baca, Eddy, Guadalupe, Lea and 3 more	6 hr
Apr 8, 3:44 PM MDT	Mesoscale Discussion	SPC	Chaves, Curry, De Baca, Eddy, Guadalupe, Lea and 3 more	91 min
Apr 7, 6:20 PM MDT	Severe Thunderstorm Watch	SPC	Jasper, Newton, Sabine	6 hr
Apr 7, 8:59 PM MDT	Mesoscale Discussion	SPC	Jasper, Newton	61 min
Apr 8, 4:45 PM MDT	Mesoscale Discussion	SPC	Bandera, Brooks, Crockett, Dimmit, Duval, Edwards and 22 more	90 min
Apr 8, 5:15 PM MDT	Severe Thunderstorm Watch	SPC	Armstrong, Briscoe, Carson, Collingsworth, Crosby, Dickens and 12 more	6 hr

Nearby

Mesoscale Discussions in Texas, 2004 Mesoscale Discussions in New Mexico, 2004 Every mesoscale discussion in 2004

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.