Alert archive / North Dakota / Severe Thunderstorm Watches in 2016
Severe Thunderstorm Watch 441
The Storm Prediction Center issued this severe thunderstorm watch at Aug 10, 2016, 4:59 PM MDT for 37 counties in North Dakota. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 10, 2016, 4:59 PM MDT (22:59 UTC)
- Expired
- Aug 11, 2016, 12:00 AM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 37 counties
Adams County, ND, Benson County, ND, Billings County, ND, Bottineau County, ND, Burke County, ND, Burleigh County, ND, Cavalier County, ND, Dickey County, ND, Dunn County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grant County, ND, Hettinger County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Pierce County, ND, Ramsey County, ND, Renville County, ND, Rolette County, ND, Sheridan County, ND, Sioux County, ND, Stark County, ND, Stutsman County, ND, Towner County, ND, Ward County, ND, Wells County, ND, Williams County, ND
The radar
The Minot AFB radar (KMBX), 69 km from the middle of the area, began a volume at 23:01 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
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 5:42 PM MDT | Severe Thunderstorm Warning | BIS | Dunn, Stark | 63 min |
| Aug 10, 5:45 PM MDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mountrail | 60 min |
| Aug 10, 5:52 PM MDT | Tornado Warning | BIS | Dunn, Stark | 23 min |
| Aug 10, 6:31 PM MDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 59 min |
| Aug 10, 6:39 PM MDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Stark | 66 min |
| Aug 10, 6:43 PM MDT | Tornado Warning | BIS | Morton, Stark | 32 min |
| Aug 10, 7:10 PM MDT | Tornado Warning | BIS | Morton | 35 min |
| Aug 10, 7:22 PM MDT | Severe Thunderstorm Warning | BIS | Mercer, Morton, Oliver | 53 min |
| Aug 10, 8:15 PM MDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton, Oliver | 45 min |
| Aug 10, 8:35 PM MDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton, Oliver | 55 min |
| Aug 10, 8:38 PM MDT | Flash Flood Warning | FGF | Benson, Eddy, Nelson, Ramsey | 4 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.0 hours before the alert went out and 121 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
- 1481 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -183 m²/s²
- 0-3 km storm-relative helicity
- -86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 6:30 PM MDT | Mesoscale Discussion | SPC | Adams, Bowman, Sioux | 2 hr |
| Aug 9, 8:51 PM MDT | Mesoscale Discussion | SPC | Adams, Dickey, Emmons, Grant, LaMoure, Logan and 4 more | 114 min |
| Aug 9, 9:19 PM MDT | Severe Thunderstorm Watch | SPC | Barnes, Cass, Dickey, Emmons, Kidder, LaMoure and 6 more | 8 hr |
| Aug 10, 12:05 AM MDT | Mesoscale Discussion | SPC | Dickey | 55 min |
| Aug 10, 10:19 AM MDT | Mesoscale Discussion | SPC | Cass, Dickey, LaMoure, McIntosh, Ransom, Richland and 1 more | 2 hr |
| Aug 10, 12:15 PM MDT | Severe Thunderstorm Watch | SPC | Cass, Dickey, Ransom, Richland, Sargent | 7 hr |
| Aug 10, 2:45 PM MDT | Mesoscale Discussion | SPC | Cass, Dickey, LaMoure, McIntosh, Ransom, Richland and 1 more | 2 hr |
| Aug 10, 2:53 PM MDT | Mesoscale Discussion | SPC | Billings, Divide, Golden Valley, McKenzie, Williams | 97 min |
Nearby
Severe Thunderstorm Watches in North Dakota, 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.