Alert archive / South Dakota / Mesoscale Discussions in 2016
Mesoscale Discussion 790
The Storm Prediction Center issued this mesoscale discussion at May 30, 2016, 2:16 PM CDT for 8 counties in Nebraska; 11 counties in North Dakota; 28 counties in South Dakota. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- May 30, 2016, 2:16 PM CDT (19:16 UTC)
- Expired
- May 30, 2016, 3:15 PM CDT
- In force
- 59 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 47 counties
Barnes County, ND, Dickey County, ND, Emmons County, ND, Griggs County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Ransom County, ND, Sargent County, ND, Stutsman County, ND, Blaine County, NE, Brown County, NE, Cherry County, NE, Grant County, NE, Hooker County, NE, Keya Paha County, NE, Rock County, NE, Thomas County, NE, Aurora County, SD, Beadle County, SD, Bennett County, SD, Brown County, SD, Brule County, SD, Buffalo County, SD, Campbell County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Gregory County, SD, Haakon County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jackson County, SD, Jerauld County, SD, Jones County, SD, Lyman County, SD, McPherson County, SD, Mellette County, SD, Potter County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Walworth County, SD
The radar
The Aberdeen radar (KABR), 103 km from the middle of the area, began a volume at 19:17 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
Aberdeen, SD (KABR), launched 12:00Z, 7.3 hours before the alert went out and 98 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
- 25 J/kg
- Mixed-layer CIN
- -211 J/kg
- Mixed-layer LCL
- 1597 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 19 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 30, 2:56 PM CDT | Mesoscale Discussion | SPC | Chase, Cheyenne, Deuel, Dundy, Frontier, Hayes and 5 more | 64 min |
| May 30, 3:19 PM CDT | Severe Thunderstorm Watch | SPC | Arthur, Blaine, Boyd, Brown, Buffalo, Chase and 32 more | 7 hr |
| May 30, 5:14 PM CDT | Mesoscale Discussion | SPC | Burt, Butler, Cass, Colfax, Cuming, Dakota and 13 more | 91 min |
| May 30, 1:14 PM CDT | Mesoscale Discussion | SPC | Benson, Eddy, Foster, Sheridan, Wells | 61 min |
| May 30, 2:48 PM CDT | Severe Thunderstorm Watch | SPC | Barnes, Burleigh, Cass, Dickey, Eddy, Emmons and 19 more | 7 hr |
| May 30, 6:37 PM CDT | Mesoscale Discussion | SPC | Barnes, Cass, Dickey, Emmons, Griggs, Kidder and 9 more | 113 min |
Nearby
Mesoscale Discussions in South Dakota, 2016Mesoscale Discussions in North Dakota, 2016Mesoscale 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.