Alert archive / Minnesota / Mesoscale Discussions in 2018
Mesoscale Discussion 949
The Storm Prediction Center issued this mesoscale discussion at Jun 29, 2018, 10:57 PM CDT for 22 counties in Minnesota. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- Jun 29, 2018, 10:57 PM CDT (03:57 UTC)
- Expired
- Jun 30, 2018, 12:00 AM CDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 22 counties
Aitkin County, MN, Benton County, MN, Big Stone County, MN, Carlton County, MN, Cass County, MN, Chippewa County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Itasca County, MN, Kandiyohi County, MN, Mille Lacs County, MN, Morrison County, MN, Otter Tail County, MN, Pope County, MN, Saint Louis County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN
The radar
The Duluth radar (KDLH), 177 km from the middle of the area, began a volume at 03:58 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 00:00Z, 4.0 hours before the alert went out and 177 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
- 3333 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1867 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 233 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 29, 11:56 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Benton, Carlton, Cass, Chippewa, Cook and 19 more | 5 hr |
| Jun 30, 3:21 AM CDT | Mesoscale Discussion | SPC | Aitkin, Carlton, Cook, Itasca, Kanabec, Lake and 2 more | 114 min |
| Jun 30, 12:40 PM CDT | Mesoscale Discussion | SPC | Dodge, Faribault, Fillmore, Freeborn, Martin, Mower and 3 more | 3 hr |
| Jun 30, 1:39 PM CDT | Severe Thunderstorm Watch | SPC | Blue Earth, Dakota, Dodge, Faribault, Fillmore, Freeborn and 13 more | 7 hr |
| Jun 30, 3:40 PM CDT | Mesoscale Discussion | SPC | Dodge, Fillmore, Freeborn, Goodhue, Houston, Mower and 4 more | 2 hr |
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.