Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 224

March 27, 200420 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 27, 2004, 3:10 AM CST for 20 counties in Texas. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued: Mar 27, 2004, 3:10 AM CST (09:10 UTC)
Expired: Mar 27, 2004, 4:45 AM CST
In force: 95 min
Issued by: the Storm Prediction Center

Counties Callahan County, TX, Coke County, TX, Coleman County, TX, Crane County, TX, Ector County, TX, Fisher County, TX, Glasscock County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Reagan County, TX, Runnels County, TX, Sterling County, TX, Taylor County, TX, Tom Green County, TX, Upton County, TX, Ward County, TX

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 9.2 hours before the alert went out and 87 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: 1188 J/kg
Mixed-layer CIN: -146 J/kg
Mixed-layer LCL: 848 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.9

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
Mar 26, 6:00 PM CST	Mesoscale Discussion	SPC	Armstrong, Bailey, Carson, Castro, Dallam, Deaf Smith and 14 more	2 hr
Mar 27, 1:55 AM CST	Mesoscale Discussion	SPC	Carson, Castro, Dallam, Deaf Smith, Hansford, Hartley and 8 more	2 hr
Mar 27, 9:58 AM CST	Mesoscale Discussion	SPC	Childress, Collingsworth, Cottle, Donley, Gray, Hall and 6 more	2 hr
Mar 27, 1:58 PM CST	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Foard, Hardeman, Haskell and 9 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.