Alert archive / Nebraska / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 576
The Storm Prediction Center issued this severe thunderstorm watch at Aug 9, 2007, 3:59 PM CDT for 13 counties in Nebraska; 11 counties in South Dakota. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 9, 2007, 3:59 PM CDT (20:59 UTC)
- Expired
- Aug 9, 2007, 11:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 24 counties
Blaine County, NE, Boyd County, NE, Brown County, NE, Cherry County, NE, Garfield County, NE, Grant County, NE, Holt County, NE, Hooker County, NE, Keya Paha County, NE, Loup County, NE, Rock County, NE, Thomas County, NE, Wheeler County, NE, Aurora County, SD, Bennett County, SD, Brule County, SD, Charles Mix County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Jackson County, SD, Mellette County, SD, Todd County, SD, Tripp County, SD
The radar
The North Platte radar (KLNX), 118 km from the middle of the area, began a volume at 20:59 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
- 40%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 4:38 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 67 min |
| Aug 9, 5:14 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 46 min |
| Aug 9, 5:26 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 64 min |
| Aug 9, 5:54 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 66 min |
| Aug 9, 6:14 PM CDT | Severe Thunderstorm Warning | LBF | Brown | 61 min |
| Aug 9, 6:26 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 34 min |
| Aug 9, 6:50 PM CDT | Severe Thunderstorm Warning | LBF | Keya Paha | 55 min |
| Aug 9, 6:55 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 65 min |
| Aug 9, 6:58 PM CDT | Severe Thunderstorm Warning | LBF | Boyd, Holt | 47 min |
| Aug 9, 7:19 PM CDT | Severe Thunderstorm Warning | LBF | Brown | 41 min |
| Aug 9, 7:26 PM CDT | Severe Thunderstorm Warning | LBF | Holt, Rock | 34 min |
| Aug 9, 7:43 PM CDT | Tornado Warning | LBF | Holt | 32 min |
| Aug 9, 7:56 PM CDT | Severe Thunderstorm Warning | LBF | Holt, Rock | 64 min |
| Aug 9, 8:06 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 54 min |
| Aug 9, 8:12 PM CDT | Tornado Warning | LBF | Holt | 33 min |
| Aug 9, 8:34 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 41 min |
| Aug 9, 8:35 PM CDT | Severe Thunderstorm Warning | LBF | Garfield | 25 min |
| Aug 9, 8:35 PM CDT | Severe Thunderstorm Warning | LBF | Wheeler | 40 min |
| Aug 9, 8:40 PM CDT | Tornado Warning | LBF | Holt | 35 min |
| Aug 9, 9:07 PM CDT | Severe Thunderstorm Warning | LBF | Wheeler | 38 min |
| Aug 9, 10:18 PM CDT | Severe Thunderstorm Warning | LBF | Garfield, Holt | 27 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 8, 7:06 PM CDT | Mesoscale Discussion | SPC | Gage, Johnson, Lancaster, Nemaha, Otoe, Pawnee and 1 more | 54 min |
| Aug 9, 3:32 PM CDT | Mesoscale Discussion | SPC | Boyd, Brown, Cherry, Grant, Holt, Hooker and 4 more | 2 hr |
| Aug 9, 6:58 PM CDT | Mesoscale Discussion | SPC | Boyd, Brown, Cherry, Holt, Keya Paha, Rock | 92 min |
Nearby
Severe Thunderstorm Watches in Nebraska, 2007Severe Thunderstorm Watches in South Dakota, 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.