Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 1118

July 2, 20164 counties in Oklahoma; 7 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jul 2, 2016, 6:10 PM CDT for 4 counties in Oklahoma; 7 counties in Texas. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued: Jul 2, 2016, 6:10 PM CDT (23:10 UTC)
Expired: Jul 2, 2016, 7:45 PM CDT
In force: 95 min
Issued by: the Storm Prediction Center
Chance of a watch: 5%

Counties Comanche County, OK, Cotton County, OK, Jackson County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 34 km from the middle of the area, began a volume at 23:13 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.2 hours before the alert went out and 270 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: 62 J/kg
Mixed-layer CIN: -173 J/kg
Mixed-layer LCL: 1569 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 113 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
Jul 1, 8:48 PM CDT	Mesoscale Discussion	SPC	Cimarron, Texas	117 min
Jul 1, 11:15 PM CDT	Mesoscale Discussion	SPC	Beaver, Harper, Texas, Woods	3 hr
Jul 2, 12:55 PM CDT	Mesoscale Discussion	SPC	Cimarron, Texas	2 hr
Jul 2, 4:05 PM CDT	Severe Thunderstorm Watch	SPC	Alfalfa, Ellis, Grant, Harper, Kay, Woods and 1 more	7 hr
Jul 2, 6:03 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Beaver, Grant, Harper, Texas, Woods and 1 more	87 min

Nearby

Mesoscale Discussions in Texas, 2016 Mesoscale Discussions in Oklahoma, 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.