Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 257

April 3, 2004Lea County, New Mexico; 16 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 3, 2004, 3:54 PM MST for Lea County, New Mexico; 16 counties in Texas. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: Apr 3, 2004, 3:54 PM MST (22:54 UTC)
Expired: Apr 3, 2004, 5:30 PM MST
In force: 96 min
Issued by: the Storm Prediction Center

Counties Lea County, NM, Andrews County, TX, Crane County, TX, Crockett County, TX, Ector County, TX, Gaines County, TX, Glasscock County, TX, Loving County, TX, Martin County, TX, Midland County, TX, Pecos County, TX, Reagan County, TX, Reeves County, TX, Terrell County, TX, Upton County, TX, Ward County, TX, Winkler County, TX

The radar

The Midland/Odessa radar (KMAF), 62 km from the middle of the area, began a volume at 22:53 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 nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 10.9 hours before the alert went out and 61 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: 11 J/kg
Mixed-layer CIN: -258 J/kg
Mixed-layer LCL: 753 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 124 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 3, 12:49 PM MST	Mesoscale Discussion	SPC	Otero, Socorro	2 hr
Apr 3, 4:42 PM MST	Mesoscale Discussion	SPC	Eddy, Lea, Santa Fe, Torrance	3 hr
Apr 2, 6:26 PM MST	Mesoscale Discussion	SPC	Bandera, Concho, Dimmit, Duval, Edwards, Frio and 23 more	64 min

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; radar from the NEXRAD Level II archive.