Alert archive / Texas / Mesoscale Discussions in 2018

Mesoscale Discussion 640

June 3, 2018Borden County, Dawson County, Martin County, Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2018, 11:21 PM CDT for Borden County, Dawson County, Martin County, Texas. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued: Jun 3, 2018, 11:21 PM CDT (04:21 UTC)
Expired: Jun 4, 2018, 1:15 AM CDT
In force: 114 min
Issued by: the Storm Prediction Center

Counties Borden County, TX, Dawson County, TX, Martin County, TX

The radar

The Midland/Odessa radar (KMAF), 88 km from the middle of the area, began a volume at 04:21 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, 4.4 hours before the alert went out and 87 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: 1646 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 2105 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.3

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
Jun 3, 8:39 PM CDT	Mesoscale Discussion	SPC	Culberson, Hudspeth, Jeff Davis, Loving, Presidio, Reeves	96 min
Jun 3, 9:34 PM CDT	Severe Thunderstorm Watch	SPC	Andrews, Borden, Callahan, Coke, Coleman, Concho and 33 more	7 hr
Jun 4, 2:50 AM CDT	Mesoscale Discussion	SPC	Bell, Blanco, Brown, Burnet, Callahan, Coke and 32 more	85 min
Jun 4, 6:46 PM CDT	Mesoscale Discussion	SPC	Anderson, Angelina, Cherokee, Ellis, Freestone, Henderson and 14 more	119 min

Nearby

Mesoscale Discussions in Texas, 2018 Every mesoscale discussion in 2018

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.