Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 1518

June 26, 200315 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2003, 3:50 PM CDT for 15 counties in Texas. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued: Jun 26, 2003, 3:50 PM CDT (20:50 UTC)
Expired: Jun 26, 2003, 4:45 PM CDT
In force: 55 min
Issued by: the Storm Prediction Center

Counties Brewster County, TX, Crane County, TX, Crockett County, TX, Culberson County, TX, Edwards County, TX, Jeff Davis County, TX, Kinney County, TX, Pecos County, TX, Presidio County, TX, Reeves County, TX, Sutton County, TX, Terrell County, TX, Upton County, TX, Val Verde County, TX, Ward County, TX

The radar

The Midland/Odessa radar (KMAF), 199 km from the middle of the area, began a volume at 20:49 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, 8.8 hours before the alert went out and 199 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: 1017 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 1083 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 199 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

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
Jun 26, 3:30 AM CDT	Mesoscale Discussion	SPC	Bailey, Cochran, Crosby, Dickens, Floyd, Garza and 4 more	2 hr
Jun 26, 1:07 PM CDT	Mesoscale Discussion	SPC	Crane, Crockett, Culberson, Loving, Pecos, Reeves and 4 more	2 hr
Jun 26, 1:35 PM CDT	Tornado Watch	SPC	Brewster, Crockett, Culberson, Jeff Davis, Pecos, Presidio and 4 more	5 hr

Nearby

Mesoscale Discussions in Texas, 2003 Every mesoscale discussion in 2003

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.