Alert archive / Texas / Mesoscale Discussions in 2007

Mesoscale Discussion 319

March 22, 20074 counties in New Mexico; 22 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 22, 2007, 11:42 AM MDT for 4 counties in New Mexico; 22 counties in Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Mar 22, 2007, 11:42 AM MDT (17:42 UTC)
Expired: Mar 22, 2007, 2:15 PM MDT
In force: 3 hr
Issued by: the Storm Prediction Center

All 26 counties

Chaves County, NM, Eddy County, NM, Lea County, NM, Roosevelt County, NM, Andrews County, TX, Bailey County, TX, Castro County, TX, Cochran County, TX, Crane County, TX, Culberson County, TX, Dawson County, TX, Ector County, TX, Gaines County, TX, Hale County, TX, Hockley County, TX, Jeff Davis County, TX, Lamb County, TX, Loving County, TX, Lubbock County, TX, Lynn County, TX, Pecos County, TX, Reeves County, TX, Terry County, TX, Ward County, TX, Winkler County, TX, Yoakum County, TX

The radar

The Midland/Odessa radar (KMAF), 156 km from the middle of the area, began a volume at 17:45 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 12:00Z, 5.7 hours before the alert went out and 155 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: 715 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 740 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

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 22, 6:55 AM MDT	Mesoscale Discussion	SPC	Chaves, Curry, De Baca, Eddy, Lea, Roosevelt	65 min
Mar 22, 4:57 PM MDT	Severe Thunderstorm Watch	SPC	Eddy, Lea	6 hr
Mar 21, 6:56 PM MDT	Mesoscale Discussion	SPC	Borden, Briscoe, Childress, Collingsworth, Cottle, Crosby and 27 more	64 min
Mar 22, 12:59 PM MDT	Mesoscale Discussion	SPC	Hemphill, Wheeler	2 hr

Nearby

Mesoscale Discussions in Texas, 2007 Mesoscale Discussions in New Mexico, 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.