Alert archive / New Mexico / Mesoscale Discussions in 2004

Mesoscale Discussion 1976

August 12, 20048 counties in Colorado; 9 counties in New Mexico

The Storm Prediction Center issued this mesoscale discussion at Aug 12, 2004, 1:11 PM MDT for 8 counties in Colorado; 9 counties in New Mexico. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: Aug 12, 2004, 1:11 PM MDT (19:11 UTC)
Expired: Aug 12, 2004, 2:45 PM MDT
In force: 94 min
Issued by: the Storm Prediction Center

Counties Alamosa County, CO, Costilla County, CO, Crowley County, CO, Custer County, CO, Huerfano County, CO, Las Animas County, CO, Otero County, CO, Pueblo County, CO, Colfax County, NM, Guadalupe County, NM, Harding County, NM, Mora County, NM, Quay County, NM, San Miguel County, NM, Santa Fe County, NM, Taos County, NM, Union County, NM

The radar

The Pueblo radar (KPUX), 204 km from the middle of the area, began a volume at 19:11 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.

Severe Thunderstorm Watch 746Aug 12, 2:15 PM MDT

The nearest sounding before it

Albuquerq/Krtlnd, NM (KABQ), launched 12:00Z, 7.2 hours before the alert went out and 246 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: 177 J/kg
Mixed-layer CIN: -351 J/kg
Mixed-layer LCL: 1666 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 187 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
Aug 12, 2:15 PM MDT	Severe Thunderstorm Watch	SPC	Alamosa, Conejos, Costilla, Las Animas	6 hr
Aug 11, 7:30 PM MDT	Mesoscale Discussion	SPC	Chaves, De Baca, Guadalupe, Harding, Lincoln, Mora and 1 more	30 min

Nearby

Mesoscale Discussions in New Mexico, 2004 Mesoscale Discussions in Colorado, 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.