Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 1546

June 29, 200310 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 29, 2003, 1:02 PM CDT for 10 counties in Texas. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued: Jun 29, 2003, 1:02 PM CDT (18:02 UTC)
Expired: Jun 29, 2003, 2:30 PM CDT
In force: 88 min
Issued by: the Storm Prediction Center

Counties Callahan County, TX, Comanche County, TX, Eastland County, TX, Erath County, TX, Hood County, TX, Jones County, TX, Palo Pinto County, TX, Parker County, TX, Shackelford County, TX, Stephens County, TX

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 6.0 hours before the alert went out and 303 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: 216 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 997 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 82 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
Jun 28, 8:09 PM CDT	Mesoscale Discussion	SPC	Hansford, Lipscomb, Ochiltree	96 min
Jun 28, 11:06 PM CDT	Mesoscale Discussion	SPC	Hansford, Hutchinson, Lipscomb, Moore, Ochiltree, Sherman	54 min
Jun 29, 3:01 PM CDT	Mesoscale Discussion	SPC	Bailey, Baylor, Cochran, Cottle, Crosby, Dickens and 19 more	59 min

Nearby

Mesoscale Discussions in Texas, 2003 Every mesoscale discussion in 2003

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.