Alert archive / Minnesota / Mesoscale Discussions in 2017
Mesoscale Discussion 1384
The Storm Prediction Center issued this mesoscale discussion at Jul 21, 2017, 6:25 PM CDT for 22 counties in Minnesota; Richland County, North Dakota; Grant County, Marshall County, Roberts County, South Dakota. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2017, 6:25 PM CDT (23:25 UTC)
- Expired
- Jul 21, 2017, 8:00 PM CDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 26 counties
Aitkin County, MN, Becker County, MN, Benton County, MN, Big Stone County, MN, Carlton County, MN, Cass County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Otter Tail County, MN, Pope County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Richland County, ND, Grant County, SD, Marshall County, SD, Roberts County, SD
The radar
The Minneapolis radar (KMPX), 201 km from the middle of the area, began a volume at 23:26 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.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.4 hours before the alert went out and 199 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
- 2450 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 9:42 AM CDT | Mesoscale Discussion | SPC | Kittson, Marshall | 93 min |
| Jul 21, 12:47 PM CDT | Mesoscale Discussion | SPC | Clearwater, Kittson, Mahnomen, Marshall, Norman, Pennington and 2 more | 88 min |
| Jul 21, 2:20 PM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Clay, Clearwater, Hubbard, Mahnomen and 7 more | 2 hr |
| Jul 21, 3:07 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Becker, Beltrami, Carlton, Cass, Clay and 14 more | 10 hr |
| Jul 21, 3:53 PM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Clay, Clearwater, Mahnomen, Norman and 4 more | 97 min |
| Jul 20, 7:31 PM CDT | Mesoscale Discussion | SPC | Emmons, Grant, Morton, Sioux | 89 min |
| Jul 20, 10:26 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Campbell, Edmunds, Faulk, Hand, Hyde and 5 more | 3 hr |
| Jul 20, 11:25 PM CDT | Mesoscale Discussion | SPC | Brown, Campbell, Edmunds, Faulk, McPherson, Potter and 3 more | 65 min |
Nearby
Mesoscale Discussions in Minnesota, 2017Mesoscale Discussions in South Dakota, 2017Mesoscale Discussions in North Dakota, 2017Every mesoscale discussion in 2017
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.