Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 1437

June 27, 20046 counties in New Mexico; 7 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 27, 2004, 6:20 PM MDT for 6 counties in New Mexico; 7 counties in Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Jun 27, 2004, 6:20 PM MDT (00:20 UTC)
Expired
Jun 27, 2004, 7:45 PM MDT
In force
85 min
Issued by
the Storm Prediction Center

Counties Chaves County, NM, Curry County, NM, De Baca County, NM, Guadalupe County, NM, Quay County, NM, Roosevelt County, NM, Bailey County, TX, Cochran County, TX, Deaf Smith County, TX, Hartley County, TX, Oldham County, TX, Parmer County, TX, Yoakum County, TX

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.3 hours before the alert went out and 201 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, Amarillo Airport, TX at 00:00Z on 2004-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 429 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, Amarillo Airport, TX at 00:00Z on 2004-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939Sfc1 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
429 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1380 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

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
Jun 27, 9:19 PM MDTMesoscale DiscussionSPCChaves, Curry, De Baca, Roosevelt56 min
Jun 28, 11:58 AM MDTMesoscale DiscussionSPCAngelina, Aransas, Austin, Bastrop, Bee, Brazoria and 46 more2 hr
Jun 28, 4:34 PM MDTMesoscale DiscussionSPCAngelina, Polk, Sabine, San Augustine, Tyler56 min

Nearby

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