Alert archive / Oklahoma / Mesoscale Discussions in 2005

Mesoscale Discussion 782

May 8, 200535 counties in Oklahoma; 10 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 8, 2005, 5:39 PM CDT for 35 counties in Oklahoma; 10 counties in Texas. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: May 8, 2005, 5:39 PM CDT (22:39 UTC)
Expired: May 8, 2005, 7:15 PM CDT
In force: 96 min
Issued by: the Storm Prediction Center

All 45 counties

Alfalfa County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Major County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Noble County, OK, Okfuskee County, OK, Oklahoma County, OK, Pawnee County, OK, Payne County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Cooke County, TX, Jack County, TX, Montague County, TX, Wichita County, TX, Wilbarger County, TX, Wise County, TX, Young County, TX

The radar

The Norman radar (KTLX), 25 km from the middle of the area, began a volume at 22:40 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 238May 8, 6:15 PM CDT

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 10.7 hours before the alert went out and 9 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: 919 J/kg
Mixed-layer CIN: -219 J/kg
Mixed-layer LCL: 933 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 152 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 7, 8:51 PM CDT	Mesoscale Discussion	SPC	Beaver, Beckham, Dewey, Ellis, Greer, Harmon and 4 more	54 min
May 8, 1:06 PM CDT	Mesoscale Discussion	SPC	Harmon, Jackson, Tillman	114 min
May 8, 2:05 PM CDT	Severe Thunderstorm Watch	SPC	Caddo, Comanche, Cotton, Grady, Greer, Jackson and 4 more	7 hr
May 8, 6:15 PM CDT	Severe Thunderstorm Watch	SPC	Alfalfa, Canadian, Carter, Cleveland, Garfield, Garvin and 17 more	5 hr
May 7, 7:10 PM CDT	Severe Thunderstorm Watch	SPC	Coke, Crockett, Fisher, Glasscock, Howard, Irion and 13 more	7 hr
May 7, 11:41 PM CDT	Mesoscale Discussion	SPC	Callahan, Coke, Coleman, Concho, Crockett, Eastland and 13 more	94 min
May 8, 1:22 AM CDT	Mesoscale Discussion	SPC	Concho, Edwards, Kerr, Kimble, McCulloch, Mason and 6 more	53 min
May 8, 1:50 AM CDT	Severe Thunderstorm Watch	SPC	Bandera, Crockett, Edwards, Gillespie, Kerr, Kimble and 11 more	7 hr
May 8, 4:59 AM CDT	Mesoscale Discussion	SPC	Bandera, Edwards, Gillespie, Hamilton, Kerr, Kimble and 6 more	61 min
May 8, 5:45 AM CDT	Severe Thunderstorm Watch	SPC	Anderson, Austin, Bandera, Bastrop, Bell, Bexar and 50 more	6 hr
May 8, 7:34 AM CDT	Mesoscale Discussion	SPC	Anderson, Bandera, Bastrop, Blanco, Brazos, Burleson and 19 more	56 min
May 8, 8:37 AM CDT	Mesoscale Discussion	SPC	Angelina, Gregg, Harrison, Nacogdoches, Panola, Polk and 6 more	53 min
May 8, 11:26 AM CDT	Mesoscale Discussion	SPC	Atascosa, Austin, Bee, Bexar, Brazoria, Caldwell and 25 more	64 min
May 8, 11:50 AM CDT	Tornado Watch	SPC	Atascosa, Austin, Bandera, Bee, Bexar, Brazoria and 33 more	7 hr
May 8, 2:44 PM CDT	Mesoscale Discussion	SPC	Atascosa, Austin, Bee, Brazoria, Colorado, DeWitt and 20 more	2 hr
May 8, 3:54 PM CDT	Mesoscale Discussion	SPC	Chambers, Hardin, Jasper, Jefferson, Liberty, Montgomery and 8 more	96 min
May 8, 6:00 PM CDT	Severe Thunderstorm Watch	SPC	Aransas, Brooks, Duval, Jim Hogg, Jim Wells, Kenedy and 3 more	5 hr
May 8, 6:42 PM CDT	Mesoscale Discussion	SPC	Edwards, Kerr, Kimble, Mason, Real, San Saba	93 min

Nearby

Mesoscale Discussions in Oklahoma, 2005 Mesoscale Discussions in Texas, 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.