Alert archive / Oklahoma / Mesoscale Discussions in 2005

Mesoscale Discussion 966

May 23, 20059 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 23, 2005, 5:10 AM CDT for 9 counties in Oklahoma. It was in force for 65 min.

The area

The outline as issued.

The facts

Issued: May 23, 2005, 5:10 AM CDT (10:10 UTC)
Expired: May 23, 2005, 6:15 AM CDT
In force: 65 min
Issued by: the Storm Prediction Center

Counties Caddo County, OK, Canadian County, OK, Cleveland County, OK, Grady County, OK, Lincoln County, OK, McClain County, OK, Oklahoma County, OK, Pottawatomie County, OK, Seminole County, OK

The radar

The Norman radar (KTLX), 26 km from the middle of the area, began a volume at 10:11 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

Lamont, OK (KLMN), launched 00:00Z, 10.2 hours before the alert went out and 145 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: 3459 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1793 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 366 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 36.3

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 22, 9:33 PM CDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Delaware, Mayes, Nowata and 4 more	117 min
May 22, 10:20 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Alfalfa, Cherokee, Craig, Delaware, Grant and 11 more	6 hr
May 22, 11:35 PM CDT	Mesoscale Discussion	SPC	Adair, Alfalfa, Cherokee, Craig, Delaware, Grant and 11 more	115 min
May 23, 2:31 AM CDT	Mesoscale Discussion	SPC	Adair, Alfalfa, Cherokee, Craig, Delaware, Garfield and 12 more	59 min
May 23, 3:25 AM CDT	Severe Thunderstorm Watch	SPC	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 13 more	8 hr
May 23, 6:48 AM CDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 13 more	87 min
May 23, 12:53 PM CDT	Mesoscale Discussion	SPC	Atoka, Bryan, Choctaw, Coal, Haskell, Hughes and 6 more	97 min
May 23, 4:36 PM CDT	Mesoscale Discussion	SPC	Cimarron	84 min
May 23, 4:39 PM CDT	Mesoscale Discussion	SPC	Cimarron	96 min
May 23, 5:00 PM CDT	Severe Thunderstorm Watch	SPC	Cimarron, Texas	6 hr

Nearby

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.