Alert archive / Nebraska / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 690
The Storm Prediction Center issued this severe thunderstorm watch at Jul 26, 2011, 4:43 PM MDT for 25 counties in Nebraska; 10 counties in South Dakota. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 26, 2011, 4:43 PM MDT (22:43 UTC)
- Expired
- Jul 27, 2011, 12:00 AM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 35 counties
Arthur County, NE, Blaine County, NE, Boyd County, NE, Brown County, NE, Chase County, NE, Cherry County, NE, Custer County, NE, Deuel County, NE, Frontier County, NE, Garden County, NE, Garfield County, NE, Grant County, NE, Hayes County, NE, Holt County, NE, Hooker County, NE, Keith County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Perkins County, NE, Rock County, NE, Thomas County, NE, Wheeler County, NE, Aurora County, SD, Beadle County, SD, Brule County, SD, Charles Mix County, SD, Douglas County, SD, Gregory County, SD, Jerauld County, SD, Mellette County, SD, Todd County, SD, Tripp County, SD
The radar
The North Platte radar (KLNX), 37 km from the middle of the area, began a volume at 22:45 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
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 5:07 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Deuel, Garden, Keith | 53 min |
| Jul 26, 5:25 PM MDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 65 min |
| Jul 26, 5:45 PM MDT | Severe Thunderstorm Warning | LBF | Grant | 60 min |
| Jul 26, 6:00 PM MDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 47 min |
| Jul 26, 7:07 PM MDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 38 min |
| Jul 26, 7:41 PM MDT | Severe Thunderstorm Warning | FSD | Beadle | 49 min |
| Jul 26, 8:02 PM MDT | Tornado Warning | FSD | Beadle | 14 min |
| Jul 26, 8:23 PM MDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld, Kingsbury, Miner, Sanborn | 36 min |
| Jul 26, 8:37 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 53 min |
| Jul 26, 9:03 PM MDT | Severe Thunderstorm Warning | FSD | Jerauld | 42 min |
| Jul 26, 9:18 PM MDT | Severe Thunderstorm Warning | FSD | Aurora, Jerauld, Miner, Sanborn | 42 min |
| Jul 26, 9:54 PM MDT | Severe Thunderstorm Warning | FSD | Beadle, Brookings, Kingsbury, Lake, Miner, Sanborn | 40 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 26, 4:06 PM MDT | Mesoscale Discussion | SPC | Arthur, Chase, Cherry, Deuel, Dundy, Garden and 4 more | 84 min |
| Jul 25, 8:33 PM MDT | Mesoscale Discussion | SPC | Beadle, Brookings, Buffalo, Hamlin, Hand, Hughes and 9 more | 57 min |
| Jul 26, 9:45 AM MDT | Mesoscale Discussion | SPC | Campbell, Edmunds, Faulk, Hand, McPherson | 60 min |
| Jul 26, 2:59 PM MDT | Mesoscale Discussion | SPC | Aurora, Beadle, Brown, Brule, Buffalo, Campbell and 27 more | 2 hr |
| Jul 26, 4:21 PM MDT | Tornado Watch | SPC | Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 12 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Nebraska, 2011Severe Thunderstorm Watches in South Dakota, 2011Every severe thunderstorm watch in 2011
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.