Alert archive / Oklahoma / Mesoscale Discussions in 2005

Mesoscale Discussion 2195

September 14, 200515 counties in Oklahoma; 4 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Sep 14, 2005, 1:35 AM CDT for 15 counties in Oklahoma; 4 counties in Texas. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued: Sep 14, 2005, 1:35 AM CDT (06:35 UTC)
Expired: Sep 14, 2005, 2:30 AM CDT
In force: 55 min
Issued by: the Storm Prediction Center

Counties Beckham County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Logan County, OK, Oklahoma County, OK, Tillman County, OK, Washita County, OK, Childress County, TX, Cottle County, TX, Hardeman County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 87 km from the middle of the area, began a volume at 06:39 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 789Sep 14, 3:50 AM CDT

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.6 hours before the alert went out and 124 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: 1749 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1909 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.0

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
Sep 13, 7:29 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Craig, Garfield, Grant, Kay, Mayes and 7 more	2 hr
Sep 13, 9:03 PM CDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Canadian, Cleveland, Comanche and 23 more	87 min
Sep 13, 9:10 PM CDT	Severe Thunderstorm Watch	SPC	Cherokee, Craig, Creek, Delaware, Lincoln, Mayes and 10 more	7 hr
Sep 14, 2:15 AM CDT	Mesoscale Discussion	SPC	Cherokee, Creek, Delaware, Lincoln, Mayes, Okmulgee and 2 more	60 min
Sep 14, 3:50 AM CDT	Severe Thunderstorm Watch	SPC	Adair, Beckham, Blaine, Caddo, Canadian, Cherokee and 29 more	6 hr
Sep 14, 7:51 AM CDT	Mesoscale Discussion	SPC	Adair, Alfalfa, Beckham, Blaine, Caddo, Canadian and 53 more	54 min
Sep 14, 1:38 PM CDT	Mesoscale Discussion	SPC	Carter, Cleveland, Coal, Comanche, Cotton, Garvin and 12 more	97 min
Sep 14, 2:27 PM CDT	Mesoscale Discussion	SPC	Atoka, Latimer, McCurtain, Pushmataha	93 min
Sep 14, 3:05 PM CDT	Tornado Watch	SPC	Carter, Comanche, Cotton, Garvin, Jackson, Jefferson and 5 more	7 hr
Sep 14, 4:40 PM CDT	Mesoscale Discussion	SPC	Cimarron	2 hr
Sep 14, 5:02 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Beckham, Blaine, Caddo, Canadian, Cleveland and 25 more	118 min
Sep 14, 6:28 PM CDT	Mesoscale Discussion	SPC	Carter, Comanche, Cotton, Garvin, Jackson, Jefferson and 5 more	92 min
Sep 14, 4:32 PM CDT	Mesoscale Discussion	SPC	Coke, Crane, Crockett, Ector, Glasscock, Irion and 6 more	88 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.