Alert archive / New Mexico / Mesoscale Discussions in 2004

Mesoscale Discussion 2279

September 29, 20046 counties in New Mexico; El Paso County, Hudspeth County, Texas

The Storm Prediction Center issued this mesoscale discussion at Sep 29, 2004, 5:07 PM MDT for 6 counties in New Mexico; El Paso County, Hudspeth County, Texas. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued
Sep 29, 2004, 5:07 PM MDT (23:07 UTC)
Expired
Sep 29, 2004, 6:30 PM MDT
In force
83 min
Issued by
the Storm Prediction Center

Counties Doña Ana County, NM, Grant County, NM, Hidalgo County, NM, Luna County, NM, Otero County, NM, Sierra County, NM, El Paso County, TX, Hudspeth County, TX

The radar

The El Paso radar (KEPZ), 80 km from the middle of the area, began a volume at 23:08 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, 11.1 hours before the alert went out and 80 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-pSkew-T log-p diagram, Santa Teresa, NM at 12:00Z on 2004-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Santa Teresa, NM at 12:00Z on 2004-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2 J/kg
Mixed-layer CIN
-193 J/kg
Mixed-layer LCL
1044 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
78 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.

IssuedProductOfficeCountiesLasted
Sep 29, 1:17 PM MDTMesoscale DiscussionSPCChaves, Doña Ana, Eddy, Grant, Lincoln, Luna and 2 more118 min
Sep 29, 2:40 PM MDTSevere Thunderstorm WatchSPCDoña Ana, Grant, Hidalgo, Luna, Otero, Sierra5 hr

Nearby

Mesoscale Discussions in New Mexico, 2004Mesoscale Discussions in Texas, 2004Every 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.