Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 979

May 23, 2005Harding County, Quay County, Union County, New Mexico; Cimarron County, Texas County, Oklahoma; 12 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 23, 2005, 6:30 PM MDT for Harding County, Quay County, Union County, New Mexico; Cimarron County, Texas County, Oklahoma; 12 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 23, 2005, 6:30 PM MDT (00:30 UTC)
Expired: May 23, 2005, 8:30 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Harding County, NM, Quay County, NM, Union County, NM, Cimarron County, OK, Texas County, OK, Armstrong County, TX, 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), 117 km from the middle of the area, began a volume at 00:32 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 00:00Z, 0.5 hours before the alert went out and 118 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: 1540 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 2865 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 90 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
May 23, 9:55 PM MDT	Severe Thunderstorm Watch	SPC	Alfalfa, Garfield, Grant, Harper, Woods	6 hr
May 24, 12:14 AM MDT	Mesoscale Discussion	SPC	Alfalfa, Creek, Garfield, Grant, Harper, Kay and 18 more	91 min
May 24, 1:35 AM MDT	Severe Thunderstorm Watch	SPC	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 22 more	7 hr
May 24, 4:40 AM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 25 more	95 min
May 24, 8:13 AM MDT	Mesoscale Discussion	SPC	Craig, Delaware, Nowata, Ottawa	32 min
May 24, 9:30 AM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Delaware, Haskell, Latimer and 13 more	90 min
May 24, 9:55 AM MDT	Severe Thunderstorm Watch	SPC	Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 6 more	8 hr
May 24, 12:21 PM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Haskell, LeFlore, McCurtain, Mayes and 3 more	114 min
May 24, 2:42 PM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Haskell, LeFlore, McCurtain, Muskogee and 2 more	93 min
May 24, 3:50 PM MDT	Severe Thunderstorm Watch	SPC	Haskell, Latimer, LeFlore, McCurtain, McIntosh, Muskogee and 4 more	7 hr

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.