Alert archive / Nebraska / Tornado Watches in 2010
Tornado Watch 299
The Storm Prediction Center issued this tornado watch at Jun 11, 2010, 6:34 PM MDT for Cheyenne County, Kit Carson County, Yuma County, Colorado; 17 counties in Kansas; 25 counties in Nebraska. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2010, 6:34 PM MDT (00:34 UTC)
- Expired
- Jun 12, 2010, 12:00 AM MDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 60 kt
All 45 counties
Cheyenne County, CO, Kit Carson County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Gove County, KS, Graham County, KS, Greeley County, KS, Logan County, KS, Norton County, KS, Osborne County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Adams County, NE, Buffalo County, NE, Chase County, NE, Clay County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Fillmore County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Kearney County, NE, Lincoln County, NE, Nuckolls County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE, Thayer County, NE, Webster County, NE
The radar
The Goodland radar (KGLD), 112 km from the middle of the area, began a volume at 00:36 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
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- 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
- 50%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
42 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 7:20 PM MDT | Flash Flood Warning | GLD | Decatur, Graham, Norton, Sheridan | 3 hr |
| Jun 11, 7:20 PM MDT | Tornado Warning | GLD | Decatur, Sheridan | 55 min |
| Jun 11, 7:24 PM MDT | Tornado Warning | GLD | Kit Carson | 56 min |
| Jun 11, 7:44 PM MDT | Severe Thunderstorm Warning | GLD | Red Willow | 31 min |
| Jun 11, 7:50 PM MDT | Severe Thunderstorm Warning | GLD | Norton | 55 min |
| Jun 11, 7:55 PM MDT | Severe Thunderstorm Warning | GID | Phillips | 50 min |
| Jun 11, 7:59 PM MDT | Severe Thunderstorm Warning | LBF | Frontier | 35 min |
| Jun 11, 8:15 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 42 min |
| Jun 11, 8:17 PM MDT | Tornado Warning | GLD | Decatur, Norton | 58 min |
| Jun 11, 8:33 PM MDT | Tornado Warning | GLD | Kit Carson | 40 min |
| Jun 11, 8:39 PM MDT | Severe Thunderstorm Warning | GID | Phillips | 51 min |
| Jun 11, 8:50 PM MDT | Severe Thunderstorm Warning | GID | Buffalo, Dawson, Gosper, Phelps | 55 min |
| Jun 11, 8:51 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 54 min |
| Jun 11, 8:57 PM MDT | Tornado Warning | GID | Gosper | 33 min |
| Jun 11, 9:01 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 29 min |
| Jun 11, 9:01 PM MDT | Severe Thunderstorm Warning | GLD | Greeley | 59 min |
| Jun 11, 9:05 PM MDT | Tornado Warning | GID | Phillips | 25 min |
| Jun 11, 9:09 PM MDT | Tornado Warning | GID | Phelps | 36 min |
| Jun 11, 9:13 PM MDT | Severe Thunderstorm Warning | LBF | Chase, Perkins | 47 min |
| Jun 11, 9:15 PM MDT | Severe Thunderstorm Warning | GLD | Norton | 13 min |
| Jun 11, 9:19 PM MDT | Flash Flood Warning | GID | Phillips | 6 hr |
| Jun 11, 9:23 PM MDT | Severe Thunderstorm Warning | GLD | Sherman, Wallace | 52 min |
| Jun 11, 9:24 PM MDT | Tornado Warning | GID | Furnas, Gosper, Harlan, Phelps | 36 min |
| Jun 11, 9:25 PM MDT | Flash Flood Warning | GID | Gosper | 6 hr |
| Jun 11, 9:26 PM MDT | Tornado Warning | GID | Phillips | 34 min |
| Jun 11, 9:32 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 58 min |
| Jun 11, 9:46 PM MDT | Severe Thunderstorm Warning | LBF | Custer | 44 min |
| Jun 11, 9:50 PM MDT | Severe Thunderstorm Warning | LBF | Chase, Perkins | 40 min |
| Jun 11, 9:57 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln, McPherson | 48 min |
| Jun 11, 10:03 PM MDT | Tornado Warning | LBF | Lincoln, Perkins | 27 min |
| Jun 11, 10:13 PM MDT | Severe Thunderstorm Warning | GID | Adams, Franklin, Kearney, Webster | 47 min |
| Jun 11, 10:14 PM MDT | Tornado Warning | LBF | Keith, Lincoln | 31 min |
| Jun 11, 10:31 PM MDT | Tornado Warning | LBF | Lincoln, Perkins | 29 min |
| Jun 11, 10:33 PM MDT | Severe Thunderstorm Warning | GLD | Dundy, Hitchcock | 34 min |
| Jun 11, 10:33 PM MDT | Severe Thunderstorm Warning | LBF | Hayes | 42 min |
| Jun 11, 10:38 PM MDT | Tornado Warning | LBF | Lincoln | 37 min |
| Jun 11, 10:45 PM MDT | Severe Thunderstorm Warning | GID | Adams, Clay, Nuckolls, Webster | 45 min |
| Jun 11, 10:56 PM MDT | Severe Thunderstorm Warning | LBF | Hayes, Lincoln | 49 min |
| Jun 11, 10:59 PM MDT | Severe Thunderstorm Warning | GID | Adams, Clay, Hall, Hamilton | 46 min |
| Jun 11, 10:59 PM MDT | Tornado Warning | LBF | Lincoln | 31 min |
| Jun 11, 11:31 PM MDT | Tornado Warning | LBF | Lincoln | 29 min |
| Jun 11, 11:58 PM MDT | Severe Thunderstorm Warning | LBF | Custer, Lincoln, Logan | 47 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, 0.6 hours before the alert went out and 106 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
- 1323 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 871 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 297 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 12.6
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 8:13 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Bent, Crowley, Denver, Douglas and 14 more | 62 min |
| Jun 11, 9:34 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson, Phillips, Sedgwick, Yuma | 86 min |
| Jun 11, 7:44 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Logan, Norton, Rawlins, Sheridan and 3 more | 2 hr |
| Jun 12, 12:00 AM MDT | Severe Thunderstorm Watch | SPC | Jewell, Phillips, Smith | 6 hr |
| Jun 12, 2:16 AM MDT | Mesoscale Discussion | SPC | Decatur, Jewell, Norton, Phillips, Smith | 59 min |
| Jun 12, 1:00 PM MDT | Mesoscale Discussion | SPC | Clark, Ford, Gray, Haskell, Hodgeman, Meade and 1 more | 60 min |
| Jun 12, 1:41 PM MDT | Tornado Watch | SPC | Barton, Clark, Comanche, Edwards, Ellsworth, Finney and 19 more | 7 hr |
| Jun 12, 5:32 PM MDT | Mesoscale Discussion | SPC | Barton, Clark, Edwards, Ford, Gray, Hodgeman and 8 more | 3 hr |
| Jun 12, 4:27 AM MDT | Mesoscale Discussion | SPC | Nemaha, Pawnee, Richardson | 63 min |
Nearby
Tornado Watches in Nebraska, 2010Tornado Watches in Kansas, 2010Tornado Watches in Colorado, 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.