Alert archive / Nebraska / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 309
The Storm Prediction Center issued this severe thunderstorm watch at Jun 18, 2015, 12:03 AM MDT for 23 counties in Nebraska. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 18, 2015, 12:03 AM MDT (06:03 UTC)
- Expired
- Jun 18, 2015, 4:05 AM MDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 23 counties
Arthur County, NE, Blaine County, NE, Box Butte County, NE, Brown County, NE, Cherry County, NE, Custer County, NE, Dawes County, NE, Dawson County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Morrill County, NE, Rock County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Thomas County, NE
The radar
The North Platte radar (KLNX), 137 km from the middle of the area, began a volume at 06:03 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 12:15 AM MDT | Severe Thunderstorm Warning | CYS | Dawes | 45 min |
| Jun 18, 12:16 AM MDT | Severe Thunderstorm Warning | LBF | Cherry, Sheridan | 59 min |
| Jun 18, 12:42 AM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes, Sioux | 44 min |
| Jun 18, 12:59 AM MDT | Severe Thunderstorm Warning | LBF | Cherry | 46 min |
| Jun 18, 1:14 AM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 46 min |
| Jun 18, 1:43 AM MDT | Severe Thunderstorm Warning | LBF | Cherry | 62 min |
| Jun 18, 1:59 AM MDT | Severe Thunderstorm Warning | LBF | Garden, Grant, Sheridan | 31 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 |
|---|---|---|---|---|
| Jun 17, 6:44 PM MDT | Mesoscale Discussion | SPC | Box Butte, Dawes, Scotts Bluff, Sheridan, Sioux | 61 min |
| Jun 17, 10:37 PM MDT | Mesoscale Discussion | SPC | Box Butte, Cherry, Dawes, Sheridan, Sioux | 53 min |
| Jun 18, 2:49 AM MDT | Mesoscale Discussion | SPC | Adams, Arthur, Blaine, Brown, Buffalo, Chase and 28 more | 116 min |
Nearby
Severe Thunderstorm Watches in Nebraska, 2015Every severe thunderstorm watch in 2015
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.