Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 218

February 23, 200516 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 23, 2005, 1:19 PM CST for 16 counties in Texas. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Feb 23, 2005, 1:19 PM CST (19:19 UTC)
Expired: Feb 23, 2005, 3:15 PM CST
In force: 116 min
Issued by: the Storm Prediction Center

Counties Brown County, TX, Concho County, TX, Crockett County, TX, Irion County, TX, Kimble County, TX, Lampasas County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Pecos County, TX, San Saba County, TX, Schleicher County, TX, Sutton County, TX, Terrell County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 54 km from the middle of the area, began a volume at 19:16 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 36Feb 23, 2:10 PM CST

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 7.3 hours before the alert went out and 193 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: 140 J/kg
Mixed-layer CIN: -215 J/kg
Mixed-layer LCL: 1454 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 113 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
Feb 22, 7:45 PM CST	Mesoscale Discussion	SPC	Archer, Baylor, Brown, Callahan, Coke, Coleman and 20 more	60 min
Feb 22, 9:23 PM CST	Mesoscale Discussion	SPC	Hardeman	67 min
Feb 22, 9:45 PM CST	Severe Thunderstorm Watch	SPC	Hardeman	5 hr
Feb 22, 10:52 PM CST	Mesoscale Discussion	SPC	Archer, Bosque, Brown, Clay, Coleman, Collin and 30 more	53 min
Feb 22, 11:30 PM CST	Severe Thunderstorm Watch	SPC	Anderson, Archer, Bosque, Camp, Cherokee, Clay and 48 more	8 hr
Feb 23, 1:41 AM CST	Mesoscale Discussion	SPC	Anderson, Archer, Camp, Cherokee, Clay, Collin and 34 more	2 hr
Feb 23, 7:50 AM CST	Mesoscale Discussion	SPC	Angelina, Brazos, Burleson, Grimes, Hardin, Harris and 18 more	115 min
Feb 23, 10:35 AM CST	Mesoscale Discussion	SPC	Angelina, Hardin, Jasper, Liberty, Montgomery, Newton and 7 more	115 min
Feb 23, 2:00 PM CST	Mesoscale Discussion	SPC	Brazoria, Calhoun, Chambers, Fort Bend, Harris, Jackson and 5 more	2 hr
Feb 23, 2:10 PM CST	Severe Thunderstorm Watch	SPC	Bandera, Blanco, Burnet, Comal, Concho, Coryell and 20 more	7 hr

Nearby

Mesoscale Discussions in Texas, 2005 Every mesoscale discussion in 2005

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.