Alert archive / North Dakota / Severe Thunderstorm Watches in 2016
Severe Thunderstorm Watch 429
The Storm Prediction Center issued this severe thunderstorm watch at Aug 1, 2016, 3:19 PM CDT for 12 counties in Minnesota; 30 counties in North Dakota; 17 counties in South Dakota. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 1, 2016, 3:19 PM CDT (20:19 UTC)
- Expired
- Aug 1, 2016, 11:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 59 counties
Big Stone County, MN, Clay County, MN, Kittson County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Traverse County, MN, Wilkin County, MN, Barnes County, ND, Benson County, ND, Burleigh County, ND, Cass County, ND, Cavalier County, ND, Dickey County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grand Forks County, ND, Grant County, ND, Griggs County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Morton County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Sioux County, ND, Steele County, ND, Stutsman County, ND, Towner County, ND, Traill County, ND, Walsh County, ND, Wells County, ND, Brown County, SD, Campbell County, SD, Clark County, SD, Codington County, SD, Corson County, SD, Day County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hamlin County, SD, Marshall County, SD, McPherson County, SD, Potter County, SD, Roberts County, SD, Spink County, SD, Walworth County, SD
The radar
The Fargo/Grand Forks radar (KMVX), 94 km from the middle of the area, began a volume at 20:22 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 40%
- 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
19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 3:30 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Kidder, Wells | 60 min |
| Aug 1, 3:45 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 60 min |
| Aug 1, 3:46 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Kidder, Stutsman, Wells | 44 min |
| Aug 1, 4:21 PM CDT | Severe Thunderstorm Warning | BIS | Emmons | 54 min |
| Aug 1, 4:23 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Kidder, Stutsman, Wells | 67 min |
| Aug 1, 4:43 PM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 47 min |
| Aug 1, 5:21 PM CDT | Severe Thunderstorm Warning | FGF | Nelson, Ramsey, Walsh | 54 min |
| Aug 1, 5:27 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Logan, Stutsman | 63 min |
| Aug 1, 6:26 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Stutsman | 39 min |
| Aug 1, 6:32 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Ransom | 58 min |
| Aug 1, 7:22 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 57 min |
| Aug 1, 7:30 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 60 min |
| Aug 1, 7:58 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 62 min |
| Aug 1, 9:02 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 43 min |
| Aug 1, 9:43 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 47 min |
| Aug 1, 9:59 PM CDT | Severe Thunderstorm Warning | ABR | Marshall, Roberts | 13 min |
| Aug 1, 10:14 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 46 min |
| Aug 1, 10:33 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall | 42 min |
| Aug 1, 10:57 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Spink | 48 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
Bismarck Municip, ND (KBIS), launched 12:00Z, 8.3 hours before the alert went out and 175 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
- 248 J/kg
- Mixed-layer CIN
- -388 J/kg
- Mixed-layer LCL
- 2111 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 83 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 |
|---|---|---|---|---|
| Aug 1, 6:42 PM CDT | Mesoscale Discussion | SPC | Clay, Kittson, Marshall, Norman, Pennington, Polk and 4 more | 2 hr |
| Jul 31, 8:46 PM CDT | Mesoscale Discussion | SPC | Adams, Billings, Bottineau, Bowman, Burke, Burleigh and 20 more | 89 min |
| Aug 1, 2:38 PM CDT | Mesoscale Discussion | SPC | Barnes, Dickey, Eddy, Emmons, Foster, Griggs and 7 more | 2 hr |
| Aug 1, 4:43 PM CDT | Mesoscale Discussion | SPC | Custer, Fall River, Lawrence, Oglala Lakota, Pennington | 3 hr |
Nearby
Severe Thunderstorm Watches in North Dakota, 2016Severe Thunderstorm Watches in South Dakota, 2016Severe Thunderstorm Watches in Minnesota, 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.