Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 975

May 23, 20054 counties in New Mexico; Cimarron County, Oklahoma; 11 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 23, 2005, 3:39 PM MDT for 4 counties in New Mexico; Cimarron County, Oklahoma; 11 counties in Texas. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: May 23, 2005, 3:39 PM MDT (21:39 UTC)
Expired: May 23, 2005, 5:15 PM MDT
In force: 96 min
Issued by: the Storm Prediction Center

Counties Colfax County, NM, Harding County, NM, Quay County, NM, Union County, NM, Cimarron County, OK, Carson County, TX, Dallam County, TX, Deaf Smith County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Moore County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 150 km from the middle of the area, began a volume at 21:39 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 316May 23, 4:00 PM MDT

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.7 hours before the alert went out and 151 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: 298 J/kg
Mixed-layer CIN: -591 J/kg
Mixed-layer LCL: 2772 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 157 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
May 23, 3:36 PM MDT	Mesoscale Discussion	SPC	Colfax, Harding, Quay, Union	84 min
May 23, 4:00 PM MDT	Severe Thunderstorm Watch	SPC	Harding, Quay, Union	6 hr
May 22, 8:33 PM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Delaware, Mayes, Nowata and 4 more	117 min
May 22, 9:20 PM MDT	Severe Thunderstorm Watch	SPC	Adair, Alfalfa, Cherokee, Craig, Delaware, Grant and 11 more	6 hr
May 22, 10:35 PM MDT	Mesoscale Discussion	SPC	Adair, Alfalfa, Cherokee, Craig, Delaware, Grant and 11 more	115 min
May 23, 1:31 AM MDT	Mesoscale Discussion	SPC	Adair, Alfalfa, Cherokee, Craig, Delaware, Garfield and 12 more	59 min
May 23, 2:25 AM MDT	Severe Thunderstorm Watch	SPC	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 13 more	8 hr
May 23, 4:10 AM MDT	Mesoscale Discussion	SPC	Caddo, Canadian, Cleveland, Grady, Lincoln, McClain and 3 more	65 min
May 23, 5:48 AM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 13 more	87 min
May 23, 11:53 AM MDT	Mesoscale Discussion	SPC	Atoka, Bryan, Choctaw, Coal, Haskell, Hughes and 6 more	97 min
May 23, 12:34 AM MDT	Mesoscale Discussion	SPC	Carson, Gray, Hansford, Hemphill, Hutchinson, Moore and 4 more	56 min

Nearby

Mesoscale Discussions in Texas, 2005 Mesoscale Discussions in New Mexico, 2005 Mesoscale Discussions in Oklahoma, 2005 Every mesoscale discussion in 2005

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.