Alert archive / Nebraska / Mesoscale Discussions in 2016
Mesoscale Discussion 681
The Storm Prediction Center issued this mesoscale discussion at May 22, 2016, 5:35 PM MDT for 14 counties in Nebraska; 10 counties in South Dakota. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- May 22, 2016, 5:35 PM MDT (23:35 UTC)
- Expired
- May 22, 2016, 7:30 PM MDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
All 24 counties
Arthur County, NE, Cherry County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Sheridan County, NE, Thomas County, NE, Bennett County, SD, Haakon County, SD, Hughes County, SD, Jackson County, SD, Jones County, SD, Lyman County, SD, Mellette County, SD, Stanley County, SD, Todd County, SD, Tripp County, SD
The radar
The North Platte radar (KLNX), 80 km from the middle of the area, began a volume at 23:35 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.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.6 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.
- Mixed-layer CAPE
- 902 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 591 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 299 m²/s²
- 0-3 km storm-relative helicity
- 499 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 1:54 PM MDT | Mesoscale Discussion | SPC | Arthur, Blaine, Brown, Chase, Cherry, Dundy and 13 more | 96 min |
| May 22, 2:20 PM MDT | Tornado Watch | SPC | Arthur, Blaine, Brown, Cherry, Custer, Deuel and 10 more | 7 hr |
| May 22, 4:45 PM MDT | Mesoscale Discussion | SPC | Hitchcock | 2 hr |
| May 22, 5:20 PM MDT | Severe Thunderstorm Watch | SPC | Chase, Dawson, Dundy, Frontier, Furnas, Gosper and 4 more | 6 hr |
| May 22, 2:57 PM MDT | Mesoscale Discussion | SPC | Campbell, Corson, Dewey, Edmunds, Faulk, McPherson and 4 more | 93 min |
| May 22, 4:21 PM MDT | Severe Thunderstorm Watch | SPC | Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 7 more | 8 hr |
Nearby
Mesoscale Discussions in Nebraska, 2016Mesoscale Discussions in South Dakota, 2016Every mesoscale discussion in 2016
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.