Alert archive / Kansas / Mesoscale Discussions in 2020

Mesoscale Discussion 14

January 10, 202011 counties in Kansas; 8 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jan 10, 2020, 1:21 PM CST for 11 counties in Kansas; 8 counties in Oklahoma. It was in force for 54 min.

The area

The outline as issued.

The facts

Issued: Jan 10, 2020, 1:21 PM CST (19:21 UTC)
Expired: Jan 10, 2020, 2:15 PM CST
In force: 54 min
Issued by: the Storm Prediction Center

Counties Butler County, KS, Chautauqua County, KS, Cowley County, KS, Elk County, KS, Greenwood County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Sumner County, KS, Wilson County, KS, Woodson County, KS, Caddo County, OK, Canadian County, OK, Comanche County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK

The radar

The Vance AFB radar (KVNX), 104 km from the middle of the area, began a volume at 19:21 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 12:00Z, 7.4 hours before the alert went out and 136 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: 927 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 595 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 208 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 10, 6:30 AM CST	Mesoscale Discussion	SPC	Harper, Sumner	60 min
Jan 10, 7:44 AM CST	Severe Thunderstorm Watch	SPC	Allen, Butler, Chautauqua, Cowley, Elk, Greenwood and 8 more	67 days
Jan 10, 9:12 AM CST	Mesoscale Discussion	SPC	Chautauqua, Montgomery	93 min
Jan 10, 12:11 PM CST	Mesoscale Discussion	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 2 more	2 hr
Jan 10, 12:54 PM CST	Mesoscale Discussion	SPC	Atchison, Brown, Chase, Clay, Dickinson, Doniphan and 19 more	6 hr
Jan 10, 10:42 AM CST	Tornado Watch	SPC	Adair, Atoka, Bryan, Carter, Cherokee, Choctaw and 38 more	10 hr
Jan 10, 11:47 AM CST	Mesoscale Discussion	SPC	Bryan, Choctaw	118 min
Jan 10, 1:44 PM CST	Mesoscale Discussion	SPC	Adair, Atoka, Bryan, Cherokee, Choctaw, Coal and 19 more	91 min
Jan 10, 4:55 PM CST	Mesoscale Discussion	SPC	Atoka, Bryan, Choctaw, Haskell, Latimer, LeFlore and 2 more	2 hr
Jan 10, 5:34 PM CST	Tornado Watch	SPC	McCurtain	11 hr

Nearby

Mesoscale Discussions in Kansas, 2020 Mesoscale Discussions in Oklahoma, 2020 Every mesoscale discussion in 2020

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.