Alert archive / South Dakota / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 785
The Storm Prediction Center issued this severe thunderstorm watch at Aug 25, 2004, 3:35 PM CDT for 10 counties in North Dakota; 15 counties in South Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 25, 2004, 3:35 PM CDT (20:35 UTC)
- Expired
- Aug 25, 2004, 9:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 25 counties
Barnes County, ND, Burleigh County, ND, Dickey County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Ransom County, ND, Sargent County, ND, Stutsman County, ND, Beadle County, SD, Brookings County, SD, Brown County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Edmunds County, SD, Faulk County, SD, Hamlin County, SD, Hand County, SD, Kingsbury County, SD, Marshall County, SD, McPherson County, SD, Spink County, SD
The radar
The Aberdeen radar (KABR), 44 km from the middle of the area, began a volume at 20:35 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.
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 5:07 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 53 min |
| Aug 25, 6:00 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 60 min |
| Aug 25, 6:12 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 63 min |
| Aug 25, 6:18 PM CDT | Tornado Warning | BIS | Burleigh, McLean | 42 min |
| Aug 25, 6:49 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 41 min |
| Aug 25, 7:00 PM CDT | Tornado Warning | BIS | Burleigh | 45 min |
| Aug 25, 7:02 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 58 min |
| Aug 25, 7:33 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 42 min |
| Aug 25, 7:52 PM CDT | Tornado Warning | BIS | Stutsman | 38 min |
| Aug 25, 8:29 PM CDT | Tornado Warning | BIS | Stutsman | 46 min |
| Aug 25, 8:38 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 52 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 8.6 hours before the alert went out and 105 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
- 1 J/kg
- Mixed-layer CIN
- -409 J/kg
- Mixed-layer LCL
- 1929 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 1:31 PM CDT | Mesoscale Discussion | SPC | Dickey, Emmons, Logan, McIntosh, Sargent | 119 min |
| Aug 25, 5:47 PM CDT | Mesoscale Discussion | SPC | Barnes, Benson, Bottineau, Burleigh, Dickey, Eddy and 20 more | 118 min |
Nearby
Severe Thunderstorm Watches in South Dakota, 2004Severe Thunderstorm Watches in North Dakota, 2004Every severe thunderstorm watch 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.