Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 2126

August 8, 20035 states

The Storm Prediction Center issued this mesoscale discussion at Aug 8, 2003, 5:37 PM MDT for 5 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Aug 8, 2003, 5:37 PM MDT (23:37 UTC)
Expired: Aug 8, 2003, 8:00 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 30 counties

Baca County, CO, Bent County, CO, Prowers County, CO, Grant County, KS, Hamilton County, KS, Haskell County, KS, Morton County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Union County, NM, Beaver County, OK, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 130 km from the middle of the area, began a volume at 23:39 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, 11.6 hours before the alert went out and 131 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: 5 J/kg
Mixed-layer CIN: -284 J/kg
Mixed-layer LCL: 3001 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Aug 8, 1:26 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Cheyenne, Crowley, Kiowa, Las Animas and 3 more	3 hr
Aug 8, 2:11 PM MDT	Mesoscale Discussion	SPC	Austin, Bandera, Bastrop, Bell, Bexar, Blanco and 37 more	3 hr
Aug 8, 5:05 PM MDT	Mesoscale Discussion	SPC	Atascosa, Austin, Bandera, Bastrop, Bee, Bexar and 36 more	85 min

Nearby

Mesoscale Discussions in Texas, 2003 Mesoscale Discussions in Kansas, 2003 Mesoscale Discussions in Colorado, 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.