Alert archive / Nebraska / Tornado Watches in 2010
Tornado Watch 294
The Storm Prediction Center issued this tornado watch at Jun 10, 2010, 6:01 PM MDT for 24 counties in Nebraska; 5 counties in South Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 10, 2010, 6:01 PM MDT (00:01 UTC)
- Expired
- Jun 10, 2010, 10:49 PM MDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 60 kt
All 29 counties
Arthur County, NE, Blaine County, NE, Box Butte County, NE, Brown County, NE, Buffalo County, NE, Cherry County, NE, Cheyenne County, NE, Custer County, NE, Dawson County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keya Paha County, NE, Kimball County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Morrill County, NE, Rock County, NE, Sheridan County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE, Bennett County, SD, Jackson County, SD, Mellette County, SD, Todd County, SD, Tripp County, SD
The radar
The North Platte radar (KLNX), 85 km from the middle of the area, began a volume at 00:01 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
- 30%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 6:05 PM MDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 45 min |
| Jun 10, 7:05 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill | 25 min |
| Jun 10, 7:14 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 27 min |
| Jun 10, 7:23 PM MDT | Severe Thunderstorm Warning | LBF | Garden, Sheridan | 54 min |
| Jun 10, 7:26 PM MDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 41 min |
| Jun 10, 8:00 PM MDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 60 min |
| Jun 10, 8:21 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, McPherson | 39 min |
| Jun 10, 8:45 PM MDT | Severe Thunderstorm Warning | LBF | Hooker, McPherson | 45 min |
| Jun 10, 8:56 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, McPherson | 49 min |
| Jun 10, 9:13 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Brown, Cherry, Thomas | 47 min |
| Jun 10, 9:39 PM MDT | Severe Thunderstorm Warning | LBF | Logan, McPherson | 51 min |
| Jun 10, 9:57 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Brown, Rock, Thomas | 48 min |
| Jun 10, 9:59 PM MDT | Severe Thunderstorm Warning | LBF | Logan, McPherson | 46 min |
| Jun 10, 10:07 PM MDT | Severe Thunderstorm Warning | LBF | Custer | 38 min |
| Jun 10, 10:24 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Loup, Rock | 51 min |
| Jun 10, 10:33 PM MDT | Severe Thunderstorm Warning | LBF | Holt, Keya Paha, Rock | 42 min |
| Jun 10, 10:47 PM MDT | Severe Thunderstorm Warning | LBF | Custer, Loup | 43 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.0 hours before the alert went out and 129 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
- 3897 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 800 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 3.1
- Supercell composite
- 14.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 8:17 PM MDT | Mesoscale Discussion | SPC | Chase, Dundy, Franklin, Frontier, Furnas, Gosper and 9 more | 58 min |
| Jun 10, 9:37 PM MDT | Mesoscale Discussion | SPC | Arthur, Blaine, Box Butte, Brown, Buffalo, Cherry and 18 more | 53 min |
| Jun 10, 10:47 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Antelope, Boone, Boyd, Buffalo, Cedar and 39 more | 4 hr |
| Jun 11, 12:07 AM MDT | Mesoscale Discussion | SPC | Cedar, Dakota, Dixon | 53 min |
| Jun 11, 12:13 AM MDT | Severe Thunderstorm Watch | SPC | Dakota, Dixon | 4 hr |
| Jun 11, 12:45 AM MDT | Mesoscale Discussion | SPC | Adams, Antelope, Blaine, Boone, Boyd, Buffalo and 34 more | 60 min |
| Jun 11, 3:11 AM MDT | Mesoscale Discussion | SPC | Adams, Boone, Buffalo, Burt, Butler, Clay and 30 more | 64 min |
| Jun 11, 1:09 PM MDT | Mesoscale Discussion | SPC | Banner, Cheyenne, Kimball | 96 min |
| Jun 11, 5:35 PM MDT | Mesoscale Discussion | SPC | Chase, Dundy, Hayes, Hitchcock, Perkins | 55 min |
| Jun 10, 6:21 PM MDT | Mesoscale Discussion | SPC | Buffalo, Faulk, Hand, Hughes, Hyde, Jones and 4 more | 24 min |
| Jun 10, 6:27 PM MDT | Severe Thunderstorm Watch | SPC | Aurora, Beadle, Brule, Buffalo, Charles Mix, Davison and 15 more | 6 hr |
Nearby
Tornado Watches in Nebraska, 2010Tornado Watches in South Dakota, 2010Every tornado watch in 2010
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.