Alert archive / Texas / Mesoscale Discussions in 2018

Mesoscale Discussion 1403

September 1, 2018Curry County, New Mexico; 16 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Sep 1, 2018, 3:52 PM MDT for Curry County, New Mexico; 16 counties in Texas. It was in force for 53 min.

The area

The outline as issued.

The facts

Issued: Sep 1, 2018, 3:52 PM MDT (21:52 UTC)
Expired: Sep 1, 2018, 4:45 PM MDT
In force: 53 min
Issued by: the Storm Prediction Center
Chance of a watch: 5%

Counties Curry County, NM, Armstrong County, TX, Bailey County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Deaf Smith County, TX, Hale County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Moore County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Swisher County, TX

The radar

The Amarillo radar (KAMA), 56 km from the middle of the area, began a volume at 21:53 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, 9.9 hours before the alert went out and 340 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: 304 J/kg
Mixed-layer CIN: -266 J/kg
Mixed-layer LCL: 1536 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 15 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

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Nearby

Mesoscale Discussions in Texas, 2018 Mesoscale Discussions in New Mexico, 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.