Alert archive / Oklahoma / Mesoscale Discussions in 2006

Mesoscale Discussion 256

March 12, 200621 counties in Kansas; McDonald County, Newton County, Missouri; 30 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Mar 12, 2006, 11:29 AM CST for 21 counties in Kansas; McDonald County, Newton County, Missouri; 30 counties in Oklahoma. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 12, 2006, 11:29 AM CST (17:29 UTC)
Expired
Mar 12, 2006, 1:30 PM CST
In force
2 hr
Issued by
the Storm Prediction Center
All 53 counties

Allen County, KS, Anderson County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Cowley County, KS, Crawford County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Labette County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, McDonald County, MO, Newton County, MO, Adair County, OK, Cherokee County, OK, Coal County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Latimer County, OK, LeFlore County, OK, Lincoln County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 46 km from the middle of the area, began a volume at 17:30 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

Lamont, OK (KLMN), launched 12:00Z, 5.5 hours before the alert went out and 135 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, Lamont, OK at 12:00Z on 2006-03-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1185 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lamont, OK at 12:00Z on 2006-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 458 square meters per square second.1939587897117Sfc1 km3 km6 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
1185 J/kg
Mixed-layer CIN
-149 J/kg
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
458 m²/s²
0-3 km storm-relative helicity
543 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.2

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.

IssuedProductOfficeCountiesLasted
Mar 12, 4:32 AM CSTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 31 more88 min
Mar 12, 5:04 AM CSTSevere Thunderstorm WatchSPCAllen, Anderson, Barton, Butler, Chase, Chautauqua and 38 more7 hr
Mar 12, 7:09 AM CSTMesoscale DiscussionSPCBrown, Doniphan, Jewell, Johnson, Leavenworth, Marshall and 5 more96 min
Mar 12, 7:36 AM CSTSevere Thunderstorm WatchSPCBrown, Jewell, Marshall, Mitchell, Nemaha, Osborne and 3 more4 hr
Mar 12, 7:47 AM CSTSevere Thunderstorm WatchSPCAtchison, Doniphan, Johnson, Leavenworth, Linn, Miami and 1 more4 hr
Mar 12, 11:49 AM CSTTornado WatchSPCAllen, Anderson, Atchison, Bourbon, Brown, Butler and 33 more10 hr
Mar 12, 1:29 PM CSTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Coffey, Crawford and 16 more91 min
Mar 12, 3:02 PM CSTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Coffey, Crawford, Douglas and 12 more88 min
Mar 12, 5:06 PM CSTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Crawford, Douglas, Franklin and 6 more84 min
Mar 11, 6:11 PM CSTMesoscale DiscussionSPCBarry, Bollinger, Butler, Carter, Christian, Dent and 19 more2 hr
Mar 11, 6:39 PM CSTMesoscale DiscussionSPCFranklin, Jefferson, Lincoln, Saint Charles, Saint Louis, City of Saint Louis66 min
Mar 11, 6:49 PM CSTTornado WatchSPCBarry, Bollinger, Butler, Camden, Cape Girardeau, Carter and 46 more7 hr
Mar 11, 11:13 PM CSTMesoscale DiscussionSPCBarry, Bollinger, Cape Girardeau, Carter, Christian, Crawford and 29 more92 min
Mar 12, 1:07 AM CSTTornado WatchSPCBarry, Bollinger, Butler, Cape Girardeau, Carter, Christian and 30 more7 hr
Mar 12, 3:39 AM CSTMesoscale DiscussionSPCBarry, Bollinger, Butler, Cape Girardeau, Carter, Christian and 35 more96 min
Mar 12, 10:02 AM CSTSevere Thunderstorm WatchSPCAdair, Audrain, Boone, Caldwell, Callaway, Carroll and 25 more110 min
Mar 12, 11:17 AM CSTMesoscale DiscussionSPCAdair, Audrain, Boone, Chariton, Clark, Howard and 15 more88 min
Mar 12, 12:46 PM CSTTornado WatchSPCBarry, Christian, Douglas, Howell, McDonald, Newton and 4 more9 hr
Mar 12, 3:38 PM CSTMesoscale DiscussionSPCMcDonald2 hr
Mar 11, 7:48 PM CSTMesoscale DiscussionSPCLatimer, LeFlore, McCurtain, Pushmataha87 min
Mar 11, 9:34 PM CSTTornado WatchSPCMcCurtain4 hr

Nearby

Mesoscale Discussions in Oklahoma, 2006Mesoscale Discussions in Kansas, 2006Mesoscale Discussions in Missouri, 2006Every mesoscale discussion in 2006

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.