Alert archive / Kansas / Mesoscale Discussions in 2009

Mesoscale Discussion 83

February 10, 200913 counties in Kansas; 6 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Feb 10, 2009, 1:29 PM CST for 13 counties in Kansas; 6 counties in Oklahoma. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Feb 10, 2009, 1:29 PM CST (19:29 UTC)
Expired: Feb 10, 2009, 3:30 PM CST
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Allen County, KS, Anderson County, KS, Chautauqua County, KS, Coffey County, KS, Cowley County, KS, Elk County, KS, Greenwood County, KS, Labette County, KS, Linn County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Kay County, OK, Noble County, OK, Nowata County, OK, Osage County, OK, Pawnee County, OK, Washington County, OK

The radar

The Wichita radar (KICT), 119 km from the middle of the area, began a volume at 19:29 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 9Feb 10, 2:45 PM CST

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 7.5 hours before the alert went out and 128 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2319 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 109 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.

Issued	Product	Office	Counties	Lasted
Feb 10, 4:50 PM CST	Mesoscale Discussion	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 2 more	85 min
Feb 10, 5:32 PM CST	Tornado Watch	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 3 more	6 hr
Feb 10, 12:17 PM CST	Mesoscale Discussion	SPC	Atoka, Bryan, Carter, Cleveland, Coal, Cotton and 20 more	118 min
Feb 10, 12:49 PM CST	Tornado Watch	SPC	Blaine, Caddo, Canadian, Carter, Cleveland, Comanche and 19 more	9 hr
Feb 10, 2:16 PM CST	Mesoscale Discussion	SPC	Atoka, Bryan, Choctaw, Coal, Haskell, Hughes and 12 more	119 min
Feb 10, 2:33 PM CST	Mesoscale Discussion	SPC	Caddo, Canadian, Carter, Cleveland, Comanche, Cotton and 13 more	87 min
Feb 10, 2:42 PM CST	Tornado Watch	SPC	Adair, Atoka, Bryan, Cherokee, Choctaw, Coal and 29 more	7 hr
Feb 10, 3:37 PM CST	Tornado Watch	SPC	McCurtain	6 hr
Feb 10, 5:25 PM CST	Mesoscale Discussion	SPC	McCurtain	65 min

Nearby

Mesoscale Discussions in Kansas, 2009 Mesoscale Discussions in Oklahoma, 2009 Every mesoscale discussion in 2009

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.