Alert archive / Nebraska / Tornado Watches in 2018
Tornado Watch 184
The Storm Prediction Center issued this tornado watch at Jun 17, 2018, 1:35 PM MDT for 6 counties in Colorado; Cheyenne County, Kansas; 18 counties in Nebraska. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 17, 2018, 1:35 PM MDT (19:35 UTC)
- Expired
- Jun 17, 2018, 8:40 PM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 25 counties
Kit Carson County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Arthur County, NE, Blaine County, NE, Chase County, NE, Custer County, NE, Deuel County, NE, Dundy County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hitchcock County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Perkins County, NE, Thomas County, NE
The radar
The Goodland radar (KGLD), 142 km from the middle of the area, began a volume at 19:38 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
- 10%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 20%
- 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
- 60%
Warnings issued inside it
27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 1:44 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 31 min |
| Jun 17, 1:51 PM MDT | Tornado Warning | BOU | Sedgwick | 24 min |
| Jun 17, 1:53 PM MDT | Severe Thunderstorm Warning | LBF | Deuel | 37 min |
| Jun 17, 2:08 PM MDT | Tornado Warning | LBF | Deuel | 52 min |
| Jun 17, 2:13 PM MDT | Tornado Warning | BOU | Sedgwick | 17 min |
| Jun 17, 2:30 PM MDT | Tornado Warning | LBF | Deuel, Keith | 45 min |
| Jun 17, 3:06 PM MDT | Tornado Warning | LBF | Keith | 39 min |
| Jun 17, 3:32 PM MDT | Tornado Warning | LBF | Arthur, Keith, McPherson | 43 min |
| Jun 17, 4:07 PM MDT | Tornado Warning | LBF | Keith, Lincoln, McPherson | 38 min |
| Jun 17, 4:16 PM MDT | Severe Thunderstorm Warning | LBF | Logan | 44 min |
| Jun 17, 4:29 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan, McPherson | 46 min |
| Jun 17, 4:32 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 43 min |
| Jun 17, 4:40 PM MDT | Tornado Warning | LBF | Logan, McPherson | 50 min |
| Jun 17, 4:47 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Custer, Logan, Thomas | 43 min |
| Jun 17, 4:58 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 47 min |
| Jun 17, 5:05 PM MDT | Tornado Warning | BOU | Washington | 25 min |
| Jun 17, 5:29 PM MDT | Tornado Warning | BOU | Washington | 20 min |
| Jun 17, 5:29 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Brown | 33 min |
| Jun 17, 5:41 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 49 min |
| Jun 17, 5:45 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 45 min |
| Jun 17, 5:48 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Loup, Rock | 42 min |
| Jun 17, 6:16 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 44 min |
| Jun 17, 6:18 PM MDT | Tornado Warning | GLD | Yuma | 27 min |
| Jun 17, 6:36 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 24 min |
| Jun 17, 6:52 PM MDT | Severe Thunderstorm Warning | LBF | Keith, Lincoln, Perkins | 38 min |
| Jun 17, 7:00 PM MDT | Tornado Warning | LBF | Keith, Lincoln, Perkins | 23 min |
| Jun 17, 7:21 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 39 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
Denver, CO (KDEN), launched 12:00Z, 7.6 hours before the alert went out and 104 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1003 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -69 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 1:05 PM MDT | Mesoscale Discussion | SPC | Logan, Phillips, Sedgwick, Washington, Yuma | 85 min |
| Jun 17, 3:53 PM MDT | Mesoscale Discussion | SPC | Kit Carson, Logan, Phillips, Sedgwick, Washington, Yuma | 97 min |
| Jun 17, 5:47 PM MDT | Mesoscale Discussion | SPC | Phillips, Sedgwick, Washington, Yuma | 88 min |
| Jun 16, 6:59 PM MDT | Mesoscale Discussion | SPC | Banner, Box Butte, Cherry, Cheyenne, Dawes, Garden and 5 more | 91 min |
| Jun 16, 8:50 PM MDT | Mesoscale Discussion | SPC | Banner, Box Butte, Cherry, Dawes, Grant, Morrill and 2 more | 85 min |
| Jun 17, 2:52 PM MDT | Mesoscale Discussion | SPC | Burt, Butler, Cass, Cedar, Colfax, Cuming and 17 more | 53 min |
| Jun 17, 4:47 PM MDT | Mesoscale Discussion | SPC | Blaine, Boyd, Brown, Holt, Knox, Logan and 3 more | 118 min |
Nearby
Tornado Watches in Nebraska, 2018Tornado Watches in Colorado, 2018Tornado Watches in Kansas, 2018Every tornado watch in 2018
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.