Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 1078

May 23, 20034 counties in Oklahoma; 7 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 23, 2003, 2:22 AM CDT for 4 counties in Oklahoma; 7 counties in Texas. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued: May 23, 2003, 2:22 AM CDT (07:22 UTC)
Expired: May 23, 2003, 4:15 AM CDT
In force: 113 min
Issued by: the Storm Prediction Center

Counties Beaver County, OK, Beckham County, OK, Ellis County, OK, Roger Mills County, OK, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 141 km from the middle of the area, began a volume at 07:22 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

Dodge City, (KDDC), launched 00:00Z, 7.4 hours before the alert went out and 189 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: 506 J/kg
Mixed-layer CIN: -202 J/kg
Mixed-layer LCL: 989 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 270 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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
May 23, 6:25 AM CDT	Mesoscale Discussion	SPC	Alfalfa, Blaine, Canadian, Cleveland, Garfield, Garvin and 14 more	2 hr
May 23, 2:55 PM CDT	Severe Thunderstorm Watch	SPC	Cimarron	5 hr
May 23, 5:32 PM CDT	Mesoscale Discussion	SPC	Cimarron	88 min

Nearby

Mesoscale Discussions in Texas, 2003 Mesoscale Discussions in Oklahoma, 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.