Alert archive / South Dakota / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 497
The Storm Prediction Center issued this severe thunderstorm watch at Jun 9, 2003, 6:55 PM CDT for 4 counties in Iowa; 7 counties in Minnesota; 13 counties in South Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 9, 2003, 6:55 PM CDT (23:55 UTC)
- Expired
- Jun 10, 2003, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 24 counties
Lyon County, IA, O'Brien County, IA, Osceola County, IA, Sioux County, IA, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Redwood County, MN, Rock County, MN, Bon Homme County, SD, Brookings County, SD, Hanson County, SD, Hutchinson County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD, Yankton County, SD
The radar
The Sioux Falls radar (KFSD), 19 km from the middle of the area, began a volume at 23:54 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
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 8:18 PM CDT | Severe Thunderstorm Warning | FSD | Miner | 42 min |
| Jun 9, 8:39 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 36 min |
| Jun 9, 8:42 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 63 min |
| Jun 9, 9:25 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner | 35 min |
| Jun 9, 10:00 PM CDT | Severe Thunderstorm Warning | FSD | Turner | 45 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, 11.9 hours before the alert went out and 190 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
- 1213 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 158 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 |
|---|---|---|---|---|
| Jun 9, 6:15 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Crawford, Harrison, Ida, Lyon, Monona and 6 more | 7 hr |
| Jun 9, 6:50 PM CDT | Tornado Watch | SPC | Cherokee, Crawford, Harrison, Ida, Monona, Plymouth and 2 more | 6 hr |
| Jun 9, 2:05 PM CDT | Mesoscale Discussion | SPC | Bennett, Buffalo, Haakon, Hughes, Hyde, Jones and 7 more | 115 min |
| Jun 9, 2:55 PM CDT | Tornado Watch | SPC | Aurora, Bennett, Brule, Buffalo, Charles Mix, Gregory and 12 more | 6 hr |
| Jun 9, 4:05 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Campbell, Clark, Corson, Day, Dewey and 8 more | 5 hr |
| Jun 9, 5:00 PM CDT | Mesoscale Discussion | SPC | Brule, Buffalo, Charles Mix, Gregory, Jones, Lyman and 4 more | 90 min |
| Jun 9, 5:50 PM CDT | Mesoscale Discussion | SPC | Brown, Dewey, Edmunds, Faulk, Potter, Spink and 1 more | 85 min |
| Jun 9, 6:30 PM CDT | Mesoscale Discussion | SPC | Brule, Gregory, Hughes, Lyman, Tripp | 90 min |
Nearby
Severe Thunderstorm Watches in South Dakota, 2003Severe Thunderstorm Watches in Minnesota, 2003Severe Thunderstorm Watches in Iowa, 2003Every severe thunderstorm watch in 2003
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.