Alert archive / South Dakota / Severe Thunderstorm Watches in 2018
Severe Thunderstorm Watch 260
The Storm Prediction Center issued this severe thunderstorm watch at Jul 3, 2018, 6:42 PM CDT for 14 counties in South Dakota. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 3, 2018, 6:42 PM CDT (23:42 UTC)
- Expired
- Jul 3, 2018, 11:02 PM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
Counties Brown County, SD, Clark County, SD, Day County, SD, Edmunds County, SD, Faulk County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Marshall County, SD, McPherson County, SD, Potter County, SD, Spink County, SD, Sully County, SD, Walworth County, SD
The radar
The Aberdeen radar (KABR), 50 km from the middle of the area, began a volume at 23:44 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 7:14 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 61 min |
| Jul 3, 8:14 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 42 min |
| Jul 3, 8:21 PM CDT | Flash Flood Warning | ABR | Faulk, Hand | 6 hr |
| Jul 3, 9:41 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 43 min |
| Jul 3, 10:20 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 40 min |
| Jul 3, 10:55 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk | 50 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Campbell, Clark, Codington, Corson, Day and 11 more | 9 hr |
| Jul 2, 9:50 PM CDT | Mesoscale Discussion | SPC | Brown, Campbell, Clark, Codington, Corson, Day and 13 more | 115 min |
| Jul 2, 11:32 PM CDT | Mesoscale Discussion | SPC | Clark, Codington, Deuel, Grant, Hamlin, Roberts and 1 more | 88 min |
| Jul 3, 12:01 AM CDT | Mesoscale Discussion | SPC | Harding, Perkins | 89 min |
| Jul 3, 1:59 AM CDT | Severe Thunderstorm Watch | SPC | Brown, Campbell, Clark, Codington, Corson, Day and 11 more | 7 hr |
| Jul 3, 4:15 AM CDT | Mesoscale Discussion | SPC | Brown, Campbell, Clark, Codington, Corson, Day and 10 more | 90 min |
| Jul 3, 7:01 AM CDT | Mesoscale Discussion | SPC | Brown, Campbell, McPherson, Marshall, Roberts | 119 min |
| Jul 3, 3:25 PM CDT | Mesoscale Discussion | SPC | Lawrence | 2 hr |
| Jul 3, 5:42 PM CDT | Severe Thunderstorm Watch | SPC | Bennett, Butte, Custer, Fall River, Haakon, Harding and 7 more | 7 hr |
| Jul 3, 6:16 PM CDT | Mesoscale Discussion | SPC | Beadle, Brookings, Brown, Campbell, Clark, Codington and 17 more | 2 hr |
Nearby
Severe Thunderstorm Watches in South Dakota, 2018Every severe thunderstorm watch in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.