Alert archive / Texas / Mesoscale Discussions in 2007

Mesoscale Discussion 335

March 24, 200724 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 24, 2007, 2:05 AM CDT for 24 counties in Texas. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued: Mar 24, 2007, 2:05 AM CDT (07:05 UTC)
Expired: Mar 24, 2007, 3:00 AM CDT
In force: 55 min
Issued by: the Storm Prediction Center

All 24 counties

Borden County, TX, Briscoe County, TX, Childress County, TX, Coke County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Fisher County, TX, Floyd County, TX, Garza County, TX, Hall County, TX, Howard County, TX, Irion County, TX, Kent County, TX, King County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Runnels County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Tom Green County, TX

The radar

The Dyess AFB radar (KDYX), 137 km from the middle of the area, began a volume at 07:04 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, 7.1 hours before the alert went out and 171 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: 2078 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 1058 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 151 m²/s²
0-3 km storm-relative helicity: 210 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 8.1

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 23, 8:19 PM CDT	Mesoscale Discussion	SPC	Dallam, Hansford, Hartley, Hutchinson, Lipscomb, Moore and 3 more	116 min
Mar 23, 9:54 PM CDT	Tornado Watch	SPC	Andrews, Bailey, Borden, Castro, Cochran, Crane and 27 more	6 hr
Mar 23, 11:32 PM CDT	Mesoscale Discussion	SPC	Andrews, Borden, Cochran, Crane, Dawson, Ector and 20 more	118 min

Nearby

Mesoscale Discussions in Texas, 2007 Every mesoscale discussion in 2007

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.