Alert archive / Nebraska / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 579
The Storm Prediction Center issued this severe thunderstorm watch at Aug 10, 2007, 12:28 PM CDT for Plymouth County, Sioux County, Woodbury County, Iowa; 8 counties in Nebraska; 4 counties in South Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 10, 2007, 12:28 PM CDT (17:28 UTC)
- Expired
- Aug 10, 2007, 5:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
Counties Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Antelope County, NE, Cedar County, NE, Dakota County, NE, Dixon County, NE, Knox County, NE, Pierce County, NE, Thurston County, NE, Wayne County, NE, Bon Homme County, SD, Clay County, SD, Union County, SD, Yankton County, SD
The radar
The Sioux Falls radar (KFSD), 108 km from the middle of the area, began a volume at 17:30 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 12:50 PM CDT | Severe Thunderstorm Warning | OAX | Knox | 55 min |
| Aug 10, 12:57 PM CDT | Tornado Warning | OAX | Knox | 33 min |
| Aug 10, 1:17 PM CDT | Tornado Warning | OAX | Pierce | 58 min |
| Aug 10, 2:05 PM CDT | Severe Thunderstorm Warning | OAX | Wayne | 55 min |
| Aug 10, 2:07 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson | 38 min |
| Aug 10, 2:51 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 19 min |
| Aug 10, 2:59 PM CDT | Severe Thunderstorm Warning | OAX | Thurston | 46 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 |
|---|---|---|---|---|
| Aug 9, 9:33 PM CDT | Mesoscale Discussion | SPC | Crawford, Harrison, Monona, Plymouth, Woodbury | 87 min |
| Aug 9, 10:14 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Fremont, Harrison, Ida, Mills, Monona and 6 more | 6 hr |
| Aug 10, 1:45 AM CDT | Mesoscale Discussion | SPC | Cass, Crawford, Fremont, Harrison, Mills, Monona and 5 more | 60 min |
| Aug 9, 8:18 PM CDT | Severe Thunderstorm Watch | SPC | Antelope, Cedar, Knox, Madison, Pierce, Stanton and 1 more | 4 hr |
| Aug 10, 4:25 AM CDT | Mesoscale Discussion | SPC | Antelope, Boyd, Cedar, Colfax, Cuming, Dixon and 8 more | 35 min |
| Aug 10, 10:45 AM CDT | Mesoscale Discussion | SPC | Boyd, Brown, Cherry, Grant, Keya Paha, Rock | 90 min |
| Aug 10, 4:33 PM CDT | Mesoscale Discussion | SPC | Blaine, Brown, Cherry, Hooker, Thomas | 57 min |
| Aug 10, 5:03 PM CDT | Severe Thunderstorm Watch | SPC | Arthur, Blaine, Brown, Cherry, Custer, Garden and 9 more | 6 hr |
| Aug 10, 2:04 PM CDT | Mesoscale Discussion | SPC | Campbell, Corson, Dewey, Edmunds, McPherson, Potter and 4 more | 116 min |
| Aug 10, 3:41 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Campbell, Corson, Dewey, Edmunds, Faulk and 4 more | 8 hr |
Nearby
Severe Thunderstorm Watches in Nebraska, 2007Severe Thunderstorm Watches in South Dakota, 2007Severe Thunderstorm Watches in Iowa, 2007Every severe thunderstorm watch in 2007
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.