Alert archive / Minnesota / Mesoscale Discussions in 2017
Mesoscale Discussion 1331
The Storm Prediction Center issued this mesoscale discussion at Jul 17, 2017, 2:57 PM CDT for 4 states. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- Jul 17, 2017, 2:57 PM CDT (19:57 UTC)
- Expired
- Jul 17, 2017, 4:00 PM CDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 33 counties
Aitkin County, MN, Becker County, MN, Benton County, MN, Big Stone County, MN, Carlton County, MN, Cass County, MN, Chisago County, MN, Clay County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Isanti County, MN, Itasca County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Otter Tail County, MN, Pine County, MN, Pope County, MN, Sherburne County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Ransom County, ND, Richland County, ND, Sargent County, ND, Roberts County, SD, Burnett County, WI
The radar
The Minneapolis radar (KMPX), 201 km from the middle of the area, began a volume at 20:00 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, 8.0 hours before the alert went out and 200 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
- 1041 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 214 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 17, 3:21 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Becker, Benton, Big Stone, Carlton, Cass and 23 more | 7 hr |
| Jul 17, 6:22 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Benton, Carlton, Cass, Crow Wing and 12 more | 53 min |
| Jul 17, 6:41 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Benton, Carlton, Cass, Crow Wing and 12 more | 2 hr |
| Jul 16, 7:30 PM CDT | Mesoscale Discussion | SPC | Billings, Burke, Divide, Dunn, Golden Valley, McKenzie and 8 more | 2 hr |
Nearby
Mesoscale Discussions in Minnesota, 2017Mesoscale Discussions in North Dakota, 2017Mesoscale Discussions in South 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.