Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 308

April 9, 200423 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 9, 2004, 5:49 PM CDT for 23 counties in Texas. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued: Apr 9, 2004, 5:49 PM CDT (22:49 UTC)
Expired: Apr 9, 2004, 7:15 PM CDT
In force: 86 min
Issued by: the Storm Prediction Center

All 23 counties

Brown County, TX, Burnet County, TX, Callahan County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Crockett County, TX, Eastland County, TX, Edwards County, TX, Erath County, TX, Gillespie County, TX, Hamilton County, TX, Kerr County, TX, Kimble County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, San Saba County, TX, Schleicher County, TX, Sutton County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 10.8 hours before the alert went out and 276 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1315 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 33 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
Apr 8, 7:19 PM CDT	Mesoscale Discussion	SPC	Bailey, Castro, Cochran, Gaines, Hockley, Lamb and 3 more	26 min
Apr 8, 7:40 PM CDT	Severe Thunderstorm Watch	SPC	Cochran, Gaines, Hockley, Terry, Yoakum	4 hr
Apr 8, 8:42 PM CDT	Mesoscale Discussion	SPC	Briscoe, Cochran, Collingsworth, Crosby, Dawson, Dickens and 15 more	63 min
Apr 8, 10:18 PM CDT	Mesoscale Discussion	SPC	Crosby, Dickens, Floyd, Gaines, Garza, Hall and 7 more	57 min
Apr 9, 3:32 PM CDT	Mesoscale Discussion	SPC	Collin, Cooke, Denton, Fannin, Grayson, Lamar	88 min
Apr 9, 4:20 PM CDT	Mesoscale Discussion	SPC	Armstrong, Carson, Dallam, Deaf Smith, Donley, Gray and 10 more	115 min

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.