Alert archive / Oklahoma / Mesoscale Discussions in 2019

Mesoscale Discussion 779

May 24, 20194 counties in Kansas; 17 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 24, 2019, 7:56 PM CDT for 4 counties in Kansas; 17 counties in Oklahoma. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: May 24, 2019, 7:56 PM CDT (00:56 UTC)
Expired: May 24, 2019, 9:00 PM CDT
In force: 64 min
Issued by: the Storm Prediction Center

All 21 counties

Chautauqua County, KS, Labette County, KS, Montgomery County, KS, Wilson County, KS, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Craig County, OK, Creek County, OK, Grady County, OK, Lincoln County, OK, Logan County, OK, McClain County, OK, Nowata County, OK, Oklahoma County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Norman radar (KTLX), 64 km from the middle of the area, began a volume at 00:58 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 00:00Z, 0.9 hours before the alert went out and 80 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: 1815 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1033 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 203 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 9.1

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
May 24, 8:30 PM CDT	Mesoscale Discussion	SPC	Bourbon, Linn	2 hr
May 24, 9:16 PM CDT	Mesoscale Discussion	SPC	Bourbon, Cherokee, Crawford, Labette	29 min
May 25, 2:46 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Comanche, Edwards, Ellis and 25 more	2 hr
May 25, 3:03 PM CDT	Severe Thunderstorm Watch	SPC	Edwards, Ellis, Finney, Ford, Gove, Graham and 23 more	6 hr
May 25, 3:06 PM CDT	Mesoscale Discussion	SPC	Clark, Comanche, Meade, Seward, Stevens	114 min
May 25, 3:24 PM CDT	Mesoscale Discussion	SPC	Johnson, Leavenworth, Wyandotte	3 hr
May 25, 3:24 PM CDT	Tornado Watch	SPC	Barber, Clark, Comanche, Meade, Seward	7 hr
May 25, 5:23 PM CDT	Severe Thunderstorm Watch	SPC	Doniphan	6 hr
May 25, 5:56 PM CDT	Mesoscale Discussion	SPC	Barber, Clark, Comanche, Harper, Kingman, Kiowa and 3 more	2 hr
May 25, 6:19 PM CDT	Severe Thunderstorm Watch	SPC	Barton, Butler, Chase, Cowley, Ellsworth, Harper and 11 more	7 hr
May 25, 6:49 PM CDT	Mesoscale Discussion	SPC	Edwards, Ellis, Finney, Ford, Gove, Graham and 21 more	116 min
May 25, 12:59 PM CDT	Severe Thunderstorm Watch	SPC	Cimarron, Texas	7 hr
May 25, 3:49 PM CDT	Mesoscale Discussion	SPC	Cimarron, Texas	116 min

Nearby

Mesoscale Discussions in Oklahoma, 2019 Mesoscale Discussions in Kansas, 2019 Every mesoscale discussion in 2019

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.