Alert archive / Minnesota / Mesoscale Discussions in 2018
Mesoscale Discussion 919
The Storm Prediction Center issued this mesoscale discussion at Jun 28, 2018, 11:16 AM CDT for 26 counties in Minnesota. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Jun 28, 2018, 11:16 AM CDT (16:16 UTC)
- Expired
- Jun 28, 2018, 12:45 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 26 counties
Aitkin County, MN, Becker County, MN, Benton County, MN, Big Stone County, MN, Carlton County, MN, Cass County, MN, Clay County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Isanti 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
The radar
The Minneapolis radar (KMPX), 187 km from the middle of the area, began a volume at 16:19 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, 4.3 hours before the alert went out and 185 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
- 142 J/kg
- Mixed-layer CIN
- -218 J/kg
- Mixed-layer LCL
- 1191 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 70 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 |
|---|---|---|---|---|
| Jun 28, 1:33 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Becker, Beltrami, Carlton, Cass, Clay and 14 more | 6 hr |
| Jun 28, 3:53 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Beltrami, Carlton, Cass, Clay and 17 more | 97 min |
| Jun 28, 5:23 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Carlton, Cass, Clay, Clearwater and 7 more | 97 min |
Nearby
Mesoscale Discussions in Minnesota, 2018Every mesoscale discussion in 2018
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.