Alert archive / Nebraska / Mesoscale Discussions in 2022

Mesoscale Discussion 968

May 29, 202249 counties in Nebraska; 18 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at May 29, 2022, 9:16 PM CDT for 49 counties in Nebraska; 18 counties in South Dakota. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued: May 29, 2022, 9:16 PM CDT (02:16 UTC)
Expired: May 29, 2022, 10:45 PM CDT
In force: 89 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 289

All 67 counties

Adams County, NE, Antelope County, NE, Blaine County, NE, Boone County, NE, Boyd County, NE, Brown County, NE, Buffalo County, NE, Butler County, NE, Cedar County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Custer County, NE, Dakota County, NE, Dawson County, NE, Dixon County, NE, Dodge County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Holt County, NE, Howard County, NE, Kearney County, NE, Keya Paha County, NE, Knox County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Rock County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Valley County, NE, Wayne County, NE, Webster County, NE, Wheeler County, NE, York County, NE, Aurora County, SD, Bon Homme County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The North Platte radar (KLNX), 159 km from the middle of the area, began a volume at 02:14 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.

Severe Thunderstorm Watch 290May 30, 12:05 AM CDT

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.3 hours before the alert went out and 185 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: 780 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 2317 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

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 29, 7:16 PM CDT	Tornado Watch	SPC	Adams, Antelope, Blaine, Boone, Boyd, Brown and 45 more	8 hr
May 29, 11:25 PM CDT	Mesoscale Discussion	SPC	Antelope, Boyd, Cedar, Garfield, Holt, Keya Paha and 3 more	95 min
May 30, 12:03 AM CDT	Severe Thunderstorm Watch	SPC	Dakota, Dixon	8 hr
May 30, 5:40 AM CDT	Mesoscale Discussion	SPC	Cass, Douglas, Otoe, Sarpy, Washington	95 min
May 30, 9:27 AM CDT	Mesoscale Discussion	SPC	Antelope, Blaine, Boyd, Brown, Cedar, Dixon and 9 more	93 min
May 30, 11:28 AM CDT	Mesoscale Discussion	SPC	Antelope, Boone, Cedar, Dakota, Dixon, Knox and 5 more	92 min
May 30, 11:49 AM CDT	Tornado Watch	SPC	Antelope, Boone, Burt, Cedar, Colfax, Cuming and 10 more	6 hr
May 30, 1:34 PM CDT	Mesoscale Discussion	SPC	Burt, Cedar, Cuming, Dakota, Dixon, Dodge and 3 more	86 min
May 30, 1:55 PM CDT	Mesoscale Discussion	SPC	Burt, Cass, Douglas, Johnson, Nemaha, Otoe and 4 more	2 hr
May 30, 2:03 PM CDT	Mesoscale Discussion	SPC	Blaine, Brown, Cherry, Keya Paha, Loup, Rock	87 min
May 30, 5:23 PM CDT	Tornado Watch	SPC	Nemaha, Pawnee, Richardson	5 hr
May 30, 2:03 AM CDT	Mesoscale Discussion	SPC	Brown, Marshall, Roberts	117 min
May 30, 2:21 AM CDT	Mesoscale Discussion	SPC	Clay, Lincoln, Minnehaha, Moody, Turner, Union	84 min
May 30, 2:06 PM CDT	Mesoscale Discussion	SPC	Deuel, Grant	84 min
May 30, 2:37 PM CDT	Tornado Watch PDS	SPC	Codington, Deuel, Grant, Hamlin, Roberts	7 hr

Nearby

Mesoscale Discussions in Nebraska, 2022 Mesoscale Discussions in South Dakota, 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.