Alert archive / Nebraska / Mesoscale Discussions in 2016
Mesoscale Discussion 687
The Storm Prediction Center issued this mesoscale discussion at May 22, 2016, 8:26 PM MDT for 17 counties in Nebraska. It was in force for 94 min.
The area
The outline as issued.
The facts
- Issued
- May 22, 2016, 8:26 PM MDT (02:26 UTC)
- Expired
- May 22, 2016, 10:00 PM MDT
- In force
- 94 min
- Issued by
- the Storm Prediction Center
Counties Arthur County, NE, Blaine County, NE, Brown County, NE, Cherry County, NE, Custer County, NE, Dawson 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, Sheridan County, NE, Thomas County, NE
The radar
The North Platte radar (KLNX), 6 km from the middle of the area, began a volume at 02:29 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 00:00Z, 2.4 hours before the alert went out and 86 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
- 2431 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1498 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 18.2
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, 6:33 PM MDT | Mesoscale Discussion | SPC | Antelope, Boone, Boyd, Cedar, Garfield, Greeley and 8 more | 87 min |
| May 22, 7:22 PM MDT | Severe Thunderstorm Watch | SPC | Antelope, Boyd, Garfield, Holt, Knox, Loup and 2 more | 7 hr |
| May 22, 8:59 PM MDT | Severe Thunderstorm Watch | SPC | Arthur, Blaine, Brown, Chase, Cherry, Custer and 11 more | 5 hr |
| May 22, 9:19 PM MDT | Mesoscale Discussion | SPC | Dundy, Furnas, Hitchcock, Red Willow | 86 min |
| May 23, 12:13 AM MDT | Mesoscale Discussion | SPC | Adams, Antelope, Boone, Boyd, Buffalo, Cedar and 20 more | 92 min |
| May 23, 12:58 PM MDT | Mesoscale Discussion | SPC | Burt, Cass, Cedar, Colfax, Cuming, Dakota and 9 more | 92 min |
| May 23, 1:30 PM MDT | Mesoscale Discussion | SPC | Adams, Buffalo, Butler, Clay, Colfax, Fillmore and 18 more | 2 hr |
Nearby
Mesoscale Discussions in Nebraska, 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.