Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 225

February 23, 200519 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 23, 2005, 11:12 PM CST for 19 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Feb 23, 2005, 11:12 PM CST (05:12 UTC)
Expired: Feb 24, 2005, 1:15 AM CST
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Brown County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Crockett County, TX, Irion County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Reagan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Sterling County, TX, Sutton County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 23 km from the middle of the area, began a volume at 05:13 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

Midland Regional, TX (KMAF), launched 00:00Z, 5.2 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1266 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 158 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 23, 6:46 PM CST	Mesoscale Discussion	SPC	Andrews, Gaines, Yoakum	119 min
Feb 23, 7:36 PM CST	Mesoscale Discussion	SPC	Bandera, Bell, Blanco, Burnet, Caldwell, Comal and 26 more	84 min
Feb 23, 8:15 PM CST	Severe Thunderstorm Watch	SPC	Atascosa, Bandera, Bexar, Blanco, Comal, Edwards and 11 more	7 hr
Feb 23, 11:37 PM CST	Mesoscale Discussion	SPC	Atascosa, Bandera, Bexar, Blanco, Comal, Dimmit and 12 more	113 min
Feb 24, 1:47 AM CST	Mesoscale Discussion	SPC	Bandera, Bee, Blanco, Caldwell, DeWitt, Edwards and 19 more	88 min
Feb 24, 2:15 AM CST	Severe Thunderstorm Watch	SPC	Atascosa, Bee, Bexar, DeWitt, Goliad, Karnes and 6 more	6 hr
Feb 24, 4:12 AM CST	Mesoscale Discussion	SPC	Aransas, Atascosa, Bee, Brazoria, Calhoun, DeWitt and 11 more	93 min
Feb 24, 4:45 AM CST	Severe Thunderstorm Watch	SPC	Brazoria, Calhoun, Jackson, Matagorda, Wharton	5 hr
Feb 24, 7:04 AM CST	Mesoscale Discussion	SPC	Bee, Brazoria, Calhoun, Chambers, DeWitt, Fort Bend and 10 more	86 min

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.