Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 1312

June 16, 200418 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2004, 10:31 PM CDT for 18 counties in Texas. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued: Jun 16, 2004, 10:31 PM CDT (03:31 UTC)
Expired: Jun 16, 2004, 11:30 PM CDT
In force: 59 min
Issued by: the Storm Prediction Center

Counties Armstrong County, TX, Briscoe County, TX, Carson County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hale County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Lubbock County, TX, Lynn County, TX, Ochiltree County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 65 km from the middle of the area, began a volume at 03:41 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 3.5 hours before the alert went out and 64 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: 1653 J/kg
Mixed-layer CIN: -142 J/kg
Mixed-layer LCL: 2254 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 145 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.6

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
Jun 16, 7:55 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Bailey, Carson, Castro, Cochran, Dallam and 18 more	5 hr
Jun 17, 3:01 PM CDT	Mesoscale Discussion	SPC	Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 20 more	89 min
Jun 17, 3:35 PM CDT	Tornado Watch	SPC	Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 26 more	6 hr
Jun 17, 4:24 PM CDT	Mesoscale Discussion	SPC	Brewster, Crane, Culberson, Ector, Hudspeth, Jeff Davis and 7 more	2 hr

Nearby

Mesoscale Discussions in Texas, 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.