Alert archive / Oklahoma / Mesoscale Discussions in 2022

Mesoscale Discussion 992

May 31, 2022Sumner County, Kansas; 18 counties in Oklahoma; 12 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 31, 2022, 5:53 PM CDT for Sumner County, Kansas; 18 counties in Oklahoma; 12 counties in Texas. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: May 31, 2022, 5:53 PM CDT (22:53 UTC)
Expired: May 31, 2022, 7:30 PM CDT
In force: 97 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 297

All 31 counties

Sumner County, KS, Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, Roger Mills County, OK, Washita County, OK, Briscoe County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Hall County, TX, Hardeman County, TX, Motley County, TX, Wheeler County, TX

The radar

The Altus AFB radar (KFDR), 121 km from the middle of the area, began a volume at 22:52 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 10.9 hours before the alert went out and 170 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: 3849 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 165 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
May 30, 7:30 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Butler, Chase, Cowley, Dickinson and 20 more	90 min
May 30, 9:39 PM CDT	Mesoscale Discussion	SPC	Atchison, Barber, Brown, Butler, Chase, Dickinson and 29 more	66 min
May 30, 9:54 PM CDT	Severe Thunderstorm Watch	SPC	Atchison, Barton, Brown, Chase, Clay, Dickinson and 23 more	6 hr
May 31, 1:22 AM CDT	Mesoscale Discussion	SPC	Atchison, Doniphan, Douglas, Franklin, Jackson, Jefferson and 9 more	83 min
May 31, 2:29 PM CDT	Severe Thunderstorm Watch	SPC	Butler, Chautauqua, Cowley, Elk, Greenwood, Harper and 4 more	10 hr
May 31, 2:44 PM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Chautauqua, Cherokee, Cowley, Crawford and 7 more	2 hr
May 31, 1:21 PM CDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Canadian, Custer, Dewey and 13 more	114 min

Nearby

Mesoscale Discussions in Oklahoma, 2022 Mesoscale Discussions in Texas, 2022 Mesoscale Discussions in Kansas, 2022 Every mesoscale discussion in 2022

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.