Alert archive / Nebraska / Severe Thunderstorm Watches in 2016
Severe Thunderstorm Watch 329
The Storm Prediction Center issued this severe thunderstorm watch at Jul 5, 2016, 8:10 PM CDT for 4 counties in Iowa; 17 counties in Nebraska. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 5, 2016, 8:10 PM CDT (01:10 UTC)
- Expired
- Jul 6, 2016, 1:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 21 counties
Harrison County, IA, Monona County, IA, Pottawattamie County, IA, Shelby County, IA, Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Madison County, NE, Pierce County, NE, Platte County, NE, Sarpy County, NE, Saunders County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE
The radar
The Omaha radar (KOAX), 89 km from the middle of the area, began a volume at 01:12 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 8:25 PM CDT | Severe Thunderstorm Warning | OAX | Platte | 50 min |
| Jul 5, 8:42 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax, Platte | 48 min |
| Jul 5, 9:09 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax, Dodge, Saunders | 51 min |
| Jul 5, 9:34 PM CDT | Severe Thunderstorm Warning | OAX | Dodge, Douglas, Saunders, Washington | 37 min |
| Jul 5, 9:57 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 48 min |
| Jul 5, 10:07 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 53 min |
| Jul 5, 10:19 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 26 min |
| Jul 5, 10:46 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Shelby | 44 min |
| Jul 5, 10:46 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Sarpy, Saunders | 44 min |
| Jul 5, 10:49 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 26 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
Omaha, NE (KOAX), launched 00:00Z, 1.2 hours before the alert went out and 88 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
- 4273 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1614 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 7:38 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, O'Brien, Osceola, Winnebago | 97 min |
| Jul 5, 8:38 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Cedar, Clayton and 9 more | 67 min |
| Jul 5, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 16 more | 7 hr |
| Jul 5, 10:15 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Calhoun, Carroll, Crawford, Franklin and 13 more | 90 min |
| Jul 5, 10:35 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 22 more | 5 hr |
| Jul 5, 10:46 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Buchanan, Cedar, Clayton, Clinton and 9 more | 89 min |
| Jul 6, 1:27 AM CDT | Mesoscale Discussion | SPC | Adair, Appanoose, Benton, Cedar, Clarke, Clinton and 29 more | 2 hr |
| Jul 6, 1:55 AM CDT | Severe Thunderstorm Watch | SPC | Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren | 6 hr |
| Jul 6, 5:04 AM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Lee, Van Buren | 116 min |
| Jul 5, 7:31 PM CDT | Mesoscale Discussion | SPC | Adams, Buffalo, Butler, Clay, Custer, Dawson and 30 more | 119 min |
| Jul 6, 3:21 PM CDT | Mesoscale Discussion | SPC | Arthur, Chase, Deuel, Dundy, Garden, Hayes and 5 more | 54 min |
| Jul 6, 3:21 PM CDT | Tornado Watch | SPC | Blaine, Box Butte, Brown, Cherry, Dawes, Grant and 6 more | 7 hr |
| Jul 6, 3:49 PM CDT | Severe Thunderstorm Watch | SPC | Arthur, Boyd, Buffalo, Chase, Custer, Dawson and 23 more | 8 hr |
| Jul 6, 6:48 PM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Boone, Boyd, Brown, Cedar and 24 more | 57 min |
Nearby
Severe Thunderstorm Watches in Nebraska, 2016Severe Thunderstorm Watches in Iowa, 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.