Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 1769

October 6, 201615 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Oct 6, 2016, 5:42 PM CDT for 15 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Oct 6, 2016, 5:42 PM CDT (22:42 UTC)
Expired: Oct 6, 2016, 7:45 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center
Chance of a watch: 5%

Counties Coke County, TX, Dickens County, TX, Fisher County, TX, Glasscock County, TX, Howard County, TX, Kent County, TX, King County, TX, Mitchell County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Upton County, TX

The radar

The Midland/Odessa radar (KMAF), 76 km from the middle of the area, began a volume at 22:42 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, 10.7 hours before the alert went out and 77 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: 1382 J/kg
Mixed-layer CIN: -164 J/kg
Mixed-layer LCL: 1158 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 6, 1:39 PM CDT	Mesoscale Discussion	SPC	Childress, Cottle, Foard, Hardeman, Wilbarger	2 hr
Oct 6, 2:31 PM CDT	Severe Thunderstorm Watch	SPC	Clay, Foard, Hardeman, Wichita, Wilbarger	9 hr
Oct 6, 6:30 PM CDT	Mesoscale Discussion	SPC	Hardeman	2 hr

Nearby

Mesoscale Discussions in Texas, 2016 Every mesoscale discussion in 2016

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.