Alert archive / South Dakota / Mesoscale Discussions in 2004
Mesoscale Discussion 768
The Storm Prediction Center issued this mesoscale discussion at May 19, 2004, 6:09 PM CDT for Clay County, Norman County, Minnesota; 11 counties in North Dakota; 17 counties in South Dakota. It was in force for 96 min.
The area
The outline as issued.
The facts
- Issued
- May 19, 2004, 6:09 PM CDT (23:09 UTC)
- Expired
- May 19, 2004, 7:45 PM CDT
- In force
- 96 min
- Issued by
- the Storm Prediction Center
All 30 counties
Clay County, MN, Norman County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, Griggs County, ND, LaMoure County, ND, McIntosh County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Steele County, ND, Traill County, ND, Beadle County, SD, Brown County, SD, Buffalo County, SD, Clark County, SD, Day County, SD, Edmunds County, SD, Faulk County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jerauld County, SD, Lyman County, SD, Marshall County, SD, McPherson County, SD, Potter County, SD, Spink County, SD, Sully County, SD
The radar
The Aberdeen radar (KABR), 24 km from the middle of the area, began a volume at 23:10 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, 11.2 hours before the alert went out and 85 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 996 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| May 19, 2:35 PM CDT | Mesoscale Discussion | SPC | Clay, Kittson, Marshall, Norman, Pennington, Polk and 2 more | 115 min |
| May 19, 3:00 PM CDT | Tornado Watch | SPC | Clay, Norman | 5 hr |
| May 19, 3:03 PM CDT | Mesoscale Discussion | SPC | Benton, Blue Earth, Brown, Carver, Cottonwood, Jackson and 18 more | 117 min |
| May 19, 5:35 PM CDT | Severe Thunderstorm Watch | SPC | Blue Earth, Dodge, Faribault, Freeborn, Martin, Steele and 2 more | 5 hr |
| May 19, 1:45 PM CDT | Mesoscale Discussion | SPC | Benson, Bottineau, Cavalier, McHenry, McLean, Nelson and 6 more | 2 hr |
| May 19, 2:15 PM CDT | Severe Thunderstorm Watch | SPC | Benson, Bottineau, Cavalier, Eddy, Grand Forks, McHenry and 12 more | 6 hr |
| May 19, 5:20 PM CDT | Mesoscale Discussion | SPC | Benson, Bottineau, Cavalier, Eddy, Grand Forks, McHenry and 11 more | 115 min |
Nearby
Mesoscale Discussions in South Dakota, 2004Mesoscale Discussions in North Dakota, 2004Mesoscale Discussions in Minnesota, 2004Every mesoscale discussion in 2004
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.