Alert archive / Kansas / Mesoscale Discussions in 2008

Mesoscale Discussion 2525

December 26, 200834 counties in Kansas; 11 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Dec 26, 2008, 6:47 PM CST for 34 counties in Kansas; 11 counties in Missouri. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued: Dec 26, 2008, 6:47 PM CST (00:47 UTC)
Expired: Dec 26, 2008, 7:45 PM CST
In force: 58 min
Issued by: the Storm Prediction Center

All 45 counties

Allen County, KS, Anderson County, KS, Atchison County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Crawford County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, Miami County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Pottawatomie County, KS, Shawnee County, KS, Wabaunsee County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Barton County, MO, Bates County, MO, Buchanan County, MO, Cass County, MO, Clay County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Platte County, MO, Ray County, MO, Vernon County, MO

The radar

The Topeka radar (KTWX), 102 km from the middle of the area, began a volume at 00:47 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.

Tornado Watch 955Dec 26, 9:55 PM CST

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 0.8 hours before the alert went out and 84 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: 449 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 866 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 360 m²/s²
0-3 km storm-relative helicity: 456 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 4.3

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
Dec 26, 9:51 PM CST	Tornado Watch	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 25 more	7 hr
Dec 27, 3:32 AM CST	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Chautauqua, Cherokee, Crawford and 6 more	88 min
Dec 27, 4:30 AM CST	Tornado Watch	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Linn and 4 more	8 hr
Dec 26, 9:05 PM CST	Mesoscale Discussion	SPC	Barry, McDonald, Newton	85 min
Dec 26, 11:15 PM CST	Mesoscale Discussion	SPC	Adair, Clark, Grundy, Knox, Lewis, Macon and 8 more	90 min
Dec 27, 12:03 AM CST	Tornado Watch	SPC	Audrain, Barry, Barton, Benton, Boone, Callaway and 40 more	7 hr
Dec 27, 1:35 AM CST	Tornado Watch	SPC	Knox, Lewis, Marion, Shelby	7 hr
Dec 27, 8:03 AM CST	Mesoscale Discussion	SPC	Audrain, Barry, Benton, Bollinger, Boone, Butler and 65 more	117 min
Dec 27, 9:34 AM CST	Mesoscale Discussion	SPC	Bollinger, Butler, Cape Girardeau, Carter, Crawford, Dent and 31 more	56 min
Dec 27, 9:41 AM CST	Mesoscale Discussion	SPC	Adair, Caldwell, Carroll, Cass, Clay, Clinton and 12 more	3 hr
Dec 27, 10:26 AM CST	Mesoscale Discussion	SPC	Bollinger, Butler, Callaway, Cape Girardeau, Carter, Christian and 38 more	94 min
Dec 27, 10:58 AM CST	Tornado Watch	SPC	Christian, Dent, Douglas, Howell, Laclede, Lincoln and 14 more	8 hr
Dec 27, 11:46 AM CST	Mesoscale Discussion	SPC	Crawford, Dent, Douglas, Franklin, Howell, Iron and 10 more	89 min
Dec 27, 12:45 PM CST	Tornado Watch	SPC	Crawford, Franklin, Gasconade, Iron, Jefferson, Madison and 8 more	5 hr
Dec 27, 1:20 PM CST	Mesoscale Discussion	SPC	Dunklin, Pemiscot	25 min
Dec 27, 1:52 PM CST	Tornado Watch	SPC	Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Mississippi and 7 more	5 hr
Dec 27, 3:46 PM CST	Mesoscale Discussion	SPC	Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 9 more	89 min
Dec 27, 5:06 PM CST	Mesoscale Discussion	SPC	Mississippi	84 min

Nearby

Mesoscale Discussions in Kansas, 2008 Mesoscale Discussions in Missouri, 2008 Every mesoscale discussion in 2008

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.