Alert archive / Nebraska / Severe Thunderstorm Watches in 2016
Severe Thunderstorm Watch 468
The Storm Prediction Center issued this severe thunderstorm watch at Sep 5, 2016, 7:37 PM CDT for 33 counties in Nebraska. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 5, 2016, 7:37 PM CDT (00:37 UTC)
- Expired
- Sep 6, 2016, 3:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 33 counties
Antelope County, NE, Blaine County, NE, Boone County, NE, Boyd County, NE, Buffalo County, NE, Cedar County, NE, Custer County, NE, Dawson County, NE, Frontier County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Harlan County, NE, Hayes County, NE, Holt County, NE, Howard County, NE, Kearney County, NE, Knox County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Phelps County, NE, Pierce County, NE, Platte County, NE, Rock County, NE, Sherman County, NE, Valley County, NE, Wheeler County, NE
The radar
The Grand Island radar (KUEX), 124 km from the middle of the area, began a volume at 00:37 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
- 30%
- 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
- 60%
Warnings issued inside it
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 7:37 PM CDT | Severe Thunderstorm Warning | LBF | Frontier | 38 min |
| Sep 5, 7:43 PM CDT | Severe Thunderstorm Warning | LBF | Frontier, Hayes | 47 min |
| Sep 5, 8:11 PM CDT | Severe Thunderstorm Warning | LBF | Frontier | 49 min |
| Sep 5, 8:27 PM CDT | Severe Thunderstorm Warning | LBF | Frontier | 48 min |
| Sep 5, 8:47 PM CDT | Severe Thunderstorm Warning | LBF | Custer, Lincoln | 43 min |
| Sep 5, 8:53 PM CDT | Severe Thunderstorm Warning | LBF | Frontier | 52 min |
| Sep 5, 9:15 PM CDT | Severe Thunderstorm Warning | GID | Dawson, Gosper | 45 min |
| Sep 5, 9:23 PM CDT | Severe Thunderstorm Warning | LBF | Custer, Lincoln, Logan | 17 min |
| Sep 5, 9:38 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer, Loup | 18 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 103 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
- 125 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 2495 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 11:31 PM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Custer, Garfield, Greeley, Holt and 6 more | 29 min |
| Sep 6, 3:00 PM CDT | Mesoscale Discussion | SPC | Franklin, Webster | 3 hr |
| Sep 6, 3:47 PM CDT | Mesoscale Discussion | SPC | Burt, Butler, Colfax, Cuming, Dodge, Douglas and 5 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Nebraska, 2016Every severe thunderstorm watch in 2016
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.