Alert archive / Oklahoma / Mesoscale Discussions in 2005

Mesoscale Discussion 2304

October 1, 200535 counties in Oklahoma; 10 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Oct 1, 2005, 1:15 AM CDT for 35 counties in Oklahoma; 10 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Oct 1, 2005, 1:15 AM CDT (06:15 UTC)
Expired: Oct 1, 2005, 3:15 AM CDT
In force: 2 hr
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, Comanche County, OK, Cotton County, OK, Creek County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Jefferson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Major 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, Washita County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Fisher County, TX, Haskell County, TX, Jones County, TX, Stonewall County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 63 km from the middle of the area, began a volume at 06:15 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

Norman, OK (KOUN), launched 00:00Z, 6.3 hours before the alert went out and 110 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: 325 J/kg
Mixed-layer CIN: -239 J/kg
Mixed-layer LCL: 1290 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

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 30, 9:23 PM CDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Canadian, Carter, Cleveland and 39 more	97 min
Sep 30, 9:25 PM CDT	Severe Thunderstorm Watch	SPC	Atoka, Bryan, Canadian, Carter, Cleveland, Coal and 26 more	7 hr
Sep 30, 10:51 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Atoka, Beckham, Blaine, Bryan, Caddo and 44 more	84 min
Oct 1, 3:53 PM CDT	Mesoscale Discussion	SPC	Blaine, Canadian, Cherokee, Craig, Creek, Delaware and 19 more	97 min
Oct 1, 4:10 PM CDT	Severe Thunderstorm Watch	SPC	Garfield, Grant, Kay, Noble, Osage, Washington	3 hr
Oct 1, 6:04 PM CDT	Mesoscale Discussion	SPC	Garfield, Grant, Kay, Noble, Osage, Washington	86 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.