Alert archive / South Dakota / Mesoscale Discussions in 2005
Mesoscale Discussion 1605
The Storm Prediction Center issued this mesoscale discussion at Jul 2, 2005, 9:58 PM CDT for 5 counties in North Dakota; 46 counties in South Dakota. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 2, 2005, 9:58 PM CDT (02:58 UTC)
- Expired
- Jul 3, 2005, 12:00 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 51 counties
Dickey County, ND, LaMoure County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Beadle County, SD, Bennett County, SD, Brookings County, SD, Brown County, SD, Brule County, SD, Buffalo County, SD, Butte County, SD, Campbell County, SD, Clark County, SD, Codington County, SD, Corson County, SD, Custer County, SD, Day County, SD, Deuel County, SD, Dewey County, SD, Edmunds County, SD, Fall River County, SD, Faulk County, SD, Grant County, SD, Haakon County, SD, Hamlin County, SD, Hand County, SD, Harding County, SD, Hughes County, SD, Hyde County, SD, Jackson County, SD, Jones County, SD, Kingsbury County, SD, Lawrence County, SD, Lyman County, SD, Marshall County, SD, McPherson County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Potter County, SD, Roberts County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Walworth County, SD, Ziebach County, SD
The radar
The Aberdeen radar (KABR), 127 km from the middle of the area, began a volume at 03:02 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 00:00Z, 3.0 hours before the alert went out and 109 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
- 2517 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 1720 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 8:45 PM CDT | Mesoscale Discussion | SPC | Adams, Benson, Bottineau, Burke, Burleigh, Cavalier and 33 more | 2 hr |
| Jul 2, 11:05 PM CDT | Severe Thunderstorm Watch | SPC | Barnes, Cass, Dickey, LaMoure, Ransom, Richland and 1 more | 7 hr |
| Jul 2, 11:53 PM CDT | Mesoscale Discussion | SPC | Benson, Bottineau, Burke, Burleigh, Cavalier, Eddy and 29 more | 2 hr |
| Jul 3, 1:12 AM CDT | Mesoscale Discussion | SPC | Cavalier, Grand Forks, Griggs, Nelson, Pembina, Ramsey and 3 more | 33 min |
| Jul 3, 1:35 AM CDT | Severe Thunderstorm Watch | SPC | Grand Forks, Nelson, Steele, Traill, Walsh | 4 hr |
| Jul 3, 3:27 AM CDT | Mesoscale Discussion | SPC | Brookings, Hanson, Hutchinson, Lake, Lincoln, McCook and 3 more | 33 min |
| Jul 3, 4:00 AM CDT | Severe Thunderstorm Watch | SPC | Deuel, Moody | 5 hr |
Nearby
Mesoscale Discussions in South Dakota, 2005Mesoscale Discussions in North Dakota, 2005Every mesoscale discussion in 2005
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.