Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 397

April 1, 20066 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 1, 2006, 7:53 PM CST for 6 counties in Texas. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Apr 1, 2006, 7:53 PM CST (01:53 UTC)
Expired: Apr 1, 2006, 9:30 PM CST
In force: 97 min
Issued by: the Storm Prediction Center

Counties Concho County, TX, Crockett County, TX, Irion County, TX, Runnels County, TX, Schleicher County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 31 km from the middle of the area, began a volume at 01:56 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, 1.9 hours before the alert went out and 156 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: 3625 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: 102 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
Apr 2, 11:03 AM CDT	Mesoscale Discussion	SPC	Anderson, Bell, Bosque, Burnet, Camp, Cherokee and 31 more	117 min
Apr 2, 11:34 AM CDT	Severe Thunderstorm Watch	SPC	Anderson, Angelina, Bell, Camp, Cass, Cherokee and 27 more	6 hr
Apr 2, 5:02 PM CDT	Mesoscale Discussion	SPC	Anderson, Cherokee, Falls, Freestone, Gregg, Harrison and 11 more	88 min

Nearby

Mesoscale Discussions in Texas, 2006 Every mesoscale discussion in 2006

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.