Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 256

April 3, 2004Otero County, Socorro County, New Mexico; 5 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 3, 2004, 12:49 PM MST for Otero County, Socorro County, New Mexico; 5 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Apr 3, 2004, 12:49 PM MST (19:49 UTC)
Expired: Apr 3, 2004, 3:15 PM MST
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Otero County, NM, Socorro County, NM, Brewster County, TX, Culberson County, TX, Hudspeth County, TX, Jeff Davis County, TX, Presidio County, TX

The radar

The El Paso radar (KEPZ), 172 km from the middle of the area, began a volume at 19:51 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

Santa Teresa, NM (KEPZ), launched 12:00Z, 7.8 hours before the alert went out and 172 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: 1656 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 238 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, 3:54 PM MST	Mesoscale Discussion	SPC	Lea	96 min
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.