Alert archive / South Dakota / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 770
The Storm Prediction Center issued this severe thunderstorm watch at Sep 5, 2005, 5:05 PM CDT for 6 counties in Minnesota; 32 counties in South Dakota. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 5, 2005, 5:05 PM CDT (22:05 UTC)
- Expired
- Sep 6, 2005, 12:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 38 counties
Big Stone County, MN, Lac qui Parle County, MN, Lincoln County, MN, Pipestone County, MN, Stevens County, MN, Traverse County, MN, Aurora County, SD, Beadle County, SD, Brookings County, SD, Brown County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Clark County, SD, Codington County, SD, Davison County, SD, Day County, SD, Deuel County, SD, Douglas County, SD, Grant County, SD, Gregory County, SD, Hamlin County, SD, Hand County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, Marshall County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Roberts County, SD, Sanborn County, SD, Spink County, SD, Turner County, SD
The radar
The Sioux Falls radar (KFSD), 119 km from the middle of the area, began a volume at 22:08 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
18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 5:05 PM CDT | Severe Thunderstorm Warning | WNS | Big Stone, Chippewa, Lac qui Parle, Lincoln, Pipestone, Pope and 5 more | 7 hr |
| Sep 5, 6:45 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 51 min |
| Sep 5, 7:01 PM CDT | Severe Thunderstorm Warning | ABR | Hand | 89 min |
| Sep 5, 7:31 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 74 min |
| Sep 5, 8:11 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 49 min |
| Sep 5, 8:31 PM CDT | Severe Thunderstorm Warning | ABR | Hand | 89 min |
| Sep 5, 8:41 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 49 min |
| Sep 5, 9:26 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 49 min |
| Sep 5, 9:28 PM CDT | Severe Thunderstorm Warning | FSD | Jerauld | 32 min |
| Sep 5, 9:56 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo | 38 min |
| Sep 5, 9:58 PM CDT | Severe Thunderstorm Warning | FSD | Jerauld | 47 min |
| Sep 5, 10:00 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Swift | 45 min |
| Sep 5, 10:45 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Jerauld | 45 min |
| Sep 5, 11:03 PM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 42 min |
| Sep 5, 11:07 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Miner | 38 min |
| Sep 5, 11:20 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson | 40 min |
| Sep 5, 11:29 PM CDT | Severe Thunderstorm Warning | FSD | Aurora | 31 min |
| Sep 5, 11:49 PM CDT | Severe Thunderstorm Warning | FSD | Murray, Pipestone, Rock | 41 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, 10.1 hours before the alert went out and 87 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
- 1344 J/kg
- Mixed-layer CIN
- -347 J/kg
- Mixed-layer LCL
- 1364 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 66 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 |
|---|---|---|---|---|
| Sep 4, 10:15 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Kittson, Marshall, Norman, Pennington, Polk and 4 more | 6 hr |
| Sep 4, 11:53 PM CDT | Mesoscale Discussion | SPC | Clay, Kittson, Marshall, Norman, Pennington, Polk and 4 more | 97 min |
| Sep 5, 2:31 AM CDT | Mesoscale Discussion | SPC | Clay, Kittson, Marshall, Norman, Pennington, Polk and 4 more | 119 min |
| Sep 5, 3:19 PM CDT | Mesoscale Discussion | SPC | Becker, Clay, Clearwater, Mahnomen, Marshall, Norman and 6 more | 86 min |
| Sep 5, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | Becker, Beltrami, Clay, Clearwater, Grant, Kittson and 10 more | 8 hr |
| Sep 4, 8:31 PM CDT | Mesoscale Discussion | SPC | Brown, Campbell, Edmunds, Faulk, McPherson, Potter and 2 more | 89 min |
Nearby
Severe Thunderstorm Watches in South Dakota, 2005Severe Thunderstorm Watches in Minnesota, 2005Every severe thunderstorm watch 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.