Alert archive / Oklahoma / Mesoscale Discussions in 2007

Mesoscale Discussion 181

February 23, 20076 counties in Kansas; 25 counties in Oklahoma; Wichita County, Wilbarger County, Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 23, 2007, 7:35 PM CST for 6 counties in Kansas; 25 counties in Oklahoma; Wichita County, Wilbarger County, Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Feb 23, 2007, 7:35 PM CST (01:35 UTC)
Expired
Feb 23, 2007, 9:00 PM CST
In force
85 min
Issued by
the Storm Prediction Center
All 33 counties

Barber County, KS, Harper County, KS, Kingman County, KS, Pratt County, KS, Sedgwick County, KS, Sumner County, KS, Alfalfa County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Jackson County, OK, Jefferson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, Noble County, OK, Oklahoma County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Wichita County, TX, Wilbarger County, TX

The radar

The Norman radar (KTLX), 85 km from the middle of the area, began a volume at 01:35 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.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 1.6 hours before the alert went out and 78 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2007-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2007-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 319 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
319 m²/s²
0-3 km storm-relative helicity
387 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.

IssuedProductOfficeCountiesLasted
Feb 23, 6:15 PM CSTMesoscale DiscussionSPCClark, Comanche, Ford, Gray, Haskell, Kiowa and 2 more90 min
Feb 23, 6:45 PM CSTMesoscale DiscussionSPCBarton, Cloud, Edwards, Ellis, Ellsworth, Hodgeman and 18 more2 hr
Feb 23, 8:29 PM CSTTornado WatchSPCBarber, Barton, Clark, Comanche, Edwards, Ellis and 31 more7 hr
Feb 23, 10:31 PM CSTMesoscale DiscussionSPCCloud, Decatur, Graham, Jewell, Mitchell, Norton and 6 more119 min
Feb 23, 11:21 PM CSTMesoscale DiscussionSPCButler, Chase, Chautauqua, Clay, Cloud, Coffey and 30 more114 min
Feb 24, 6:49 AM CSTMesoscale DiscussionSPCCheyenne, Sherman4 hr
Feb 24, 9:40 AM CSTMesoscale DiscussionSPCBarton, Butler, Chase, Clay, Cloud, Cowley and 20 more2 hr
Feb 24, 11:15 AM CSTTornado WatchSPCAllen, Anderson, Barton, Butler, Chase, Chautauqua and 33 more6 hr
Feb 24, 1:34 PM CSTMesoscale DiscussionSPCCheyenne, Decatur, Rawlins, Sherman, Thomas, Wallace5 hr
Feb 24, 2:33 PM CSTMesoscale DiscussionSPCAllen, Anderson, Clay, Coffey, Dickinson, Franklin and 9 more87 min
Feb 23, 9:01 PM CSTMesoscale DiscussionSPCAlfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 18 more89 min
Feb 23, 9:26 PM CSTTornado WatchSPCAlfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 41 more9 hr
Feb 23, 11:35 PM CSTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Cleveland, Coal and 23 more115 min
Feb 24, 3:38 AM CSTMesoscale DiscussionSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 43 more97 min
Feb 24, 5:20 AM CSTMesoscale DiscussionSPCCarter, Cleveland, Creek, Garvin, Hughes, Jefferson and 16 more55 min
Feb 24, 8:29 AM CSTMesoscale DiscussionSPCLeFlore, McCurtain, Sequoyah61 min
Feb 24, 8:47 AM CSTTornado Watch PDSSPCHaskell, Latimer, LeFlore, McCurtain, Sequoyah9 hr
Feb 24, 10:35 AM CSTMesoscale DiscussionSPCBowie, Cass, Harrison, Marion, Panola115 min
Feb 24, 4:31 PM CSTMesoscale DiscussionSPCNewton, Orange59 min

Nearby

Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Kansas, 2007Mesoscale Discussions in Texas, 2007Every mesoscale discussion in 2007

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.