Alert archive / North Dakota / Severe Thunderstorm Watches in 2020
Severe Thunderstorm Watch 265
The Storm Prediction Center issued this severe thunderstorm watch at Jun 6, 2020, 9:11 PM CDT for 37 counties in North Dakota; 19 counties in South Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 6, 2020, 9:11 PM CDT (02:11 UTC)
- Expired
- Jun 7, 2020, 2:52 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 65 kt
All 56 counties
Barnes County, ND, Benson County, ND, Bottineau County, ND, Burke County, ND, Burleigh County, ND, Dickey County, ND, Divide County, ND, Dunn County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Griggs 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, Nelson County, ND, Oliver County, ND, Pierce County, ND, Ramsey County, ND, Ransom County, ND, Renville County, ND, Rolette County, ND, Sargent County, ND, Sheridan County, ND, Steele County, ND, Stutsman County, ND, Towner County, ND, Ward County, ND, Wells County, ND, Williams County, ND, Aurora County, SD, Beadle County, SD, Brown County, SD, Buffalo County, SD, Clark County, SD, Codington County, SD, Davison County, SD, Day County, SD, Douglas County, SD, Edmunds County, SD, Faulk County, SD, Hamlin County, SD, Hand County, SD, Hyde County, SD, Jerauld County, SD, Marshall County, SD, McPherson County, SD, Sanborn County, SD, Spink County, SD
The radar
The Minot AFB radar (KMBX), 91 km from the middle of the area, began a volume at 02:11 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
- 80%
- One or more gusts of 65 knots or more
- 50%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 95%
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 |
|---|---|---|---|---|
| Jun 6, 9:59 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hughes, Hyde, Jones, Lyman, Potter and 2 more | 46 min |
| Jun 6, 10:24 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 51 min |
| Jun 6, 10:46 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Douglas, Gregory, Jerauld | 59 min |
| Jun 6, 10:47 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hughes, Hyde, Lyman | 39 min |
| Jun 6, 10:52 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Hand, Hughes, Hyde, McPherson and 3 more | 35 min |
| Jun 7, 12:11 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 49 min |
| Jun 7, 12:39 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 32 min |
| Jun 7, 12:51 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Ramsey | 39 min |
| Jun 7, 1:14 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 10 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 00:00Z, 2.2 hours before the alert went out and 112 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
- 1734 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 293 m²/s²
- 0-3 km storm-relative helicity
- 582 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 |
|---|---|---|---|---|
| Jun 6, 8:29 PM CDT | Mesoscale Discussion | SPC | Benson, Billings, Burke, Burleigh, Dickey, Dunn and 25 more | 91 min |
| Jun 6, 11:34 PM CDT | Mesoscale Discussion | SPC | Burleigh, Dickey, Emmons, Kidder, Logan, McIntosh and 3 more | 86 min |
| Jun 7, 2:18 AM CDT | Mesoscale Discussion | SPC | Grand Forks, Pembina, Walsh | 117 min |
| Jun 7, 1:39 PM CDT | Mesoscale Discussion | SPC | Barnes, Cass, Grand Forks, Pembina, Ransom, Richland and 4 more | 3 hr |
| Jun 7, 3:06 PM CDT | Tornado Watch | SPC | Barnes, Benson, Cass, Cavalier, Dickey, Eddy and 19 more | 7 hr |
| Jun 7, 3:59 PM CDT | Mesoscale Discussion | SPC | Billings, Bowman, Burke, Divide, Dunn, Golden Valley and 9 more | 2 hr |
| Jun 7, 5:55 PM CDT | Mesoscale Discussion | SPC | Barnes, Cass, Dickey, Eddy, Foster, Grand Forks and 11 more | 2 hr |
| Jun 7, 2:04 PM CDT | Mesoscale Discussion | SPC | Aurora, Beadle, Brown, Brule, Buffalo, Campbell and 25 more | 116 min |
| Jun 7, 3:31 PM CDT | Severe Thunderstorm Watch | SPC | Beadle, Bennett, Brown, Brule, Buffalo, Campbell and 21 more | 8 hr |
| Jun 7, 6:00 PM CDT | Mesoscale Discussion | SPC | Bennett, Brown, Buffalo, Campbell, Edmunds, Faulk and 15 more | 90 min |
Nearby
Severe Thunderstorm Watches in North Dakota, 2020Severe Thunderstorm Watches in South Dakota, 2020Every severe thunderstorm watch in 2020
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.