Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 2303

October 6, 200418 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Oct 6, 2004, 1:23 AM CDT for 18 counties in Texas. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Oct 6, 2004, 1:23 AM CDT (06:23 UTC)
Expired: Oct 6, 2004, 3:00 AM CDT
In force: 97 min
Issued by: the Storm Prediction Center

Counties Borden County, TX, Crane County, TX, Culberson County, TX, Ector County, TX, Garza County, TX, Glasscock County, TX, Howard County, TX, Jeff Davis County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Pecos County, TX, Reeves County, TX, Scurry County, TX, Upton County, TX, Ward County, TX, Winkler County, TX

The radar

The Midland/Odessa radar (KMAF), 101 km from the middle of the area, began a volume at 06:24 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, 6.4 hours before the alert went out and 100 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: 1149 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 922 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 5.9

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
Oct 5, 8:45 PM CDT	Mesoscale Discussion	SPC	Andrews, Crane, Culberson, Ector, Hudspeth, Jeff Davis and 6 more	2 hr
Oct 5, 10:32 PM CDT	Mesoscale Discussion	SPC	Andrews, Crane, Culberson, Ector, Gaines, Hudspeth and 7 more	118 min
Oct 5, 10:50 PM CDT	Severe Thunderstorm Watch	SPC	Andrews, Borden, Crane, Culberson, Dawson, Ector and 20 more	4 hr

Nearby

Mesoscale Discussions in Texas, 2004 Every mesoscale discussion in 2004

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.