Alert archive / Minnesota / Mesoscale Discussions in 2018
Mesoscale Discussion 1367
The Storm Prediction Center issued this mesoscale discussion at Aug 26, 2018, 10:55 PM CDT for 22 counties in Minnesota; 5 counties in North Dakota; 10 counties in South Dakota. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 26, 2018, 10:55 PM CDT (03:55 UTC)
- Expired
- Aug 27, 2018, 1:00 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 37 counties
Becker County, MN, Beltrami County, MN, Big Stone County, MN, Cass County, MN, Clay County, MN, Clearwater County, MN, Grant County, MN, Hubbard County, MN, Itasca County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Traverse County, MN, Wilkin County, MN, Cass County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Traill County, ND, Beadle County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Kingsbury County, SD, Marshall County, SD, Roberts County, SD
The radar
The Fargo/Grand Forks radar (KMVX), 125 km from the middle of the area, began a volume at 03:55 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 nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 3.9 hours before the alert went out and 281 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
- 2190 J/kg
- Mixed-layer CIN
- -121 J/kg
- Mixed-layer LCL
- 1710 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 254 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 16.0
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 |
|---|---|---|---|---|
| Aug 26, 7:37 PM CDT | Tornado Watch | SPC | Big Stone, Clay, Traverse, Wilkin | 5 hr |
| Aug 26, 9:48 PM CDT | Severe Thunderstorm Watch | SPC | Becker, Beltrami, Cass, Clearwater, Hubbard, Itasca and 10 more | 6 hr |
| Aug 27, 2:04 AM CDT | Mesoscale Discussion | SPC | Hubbard, Itasca, Saint Louis | 2 hr |
| Aug 27, 11:49 AM CDT | Mesoscale Discussion | SPC | Anoka, Blue Earth, Brown, Carver, Chippewa, Cottonwood and 27 more | 116 min |
| Aug 27, 2:24 PM CDT | Mesoscale Discussion | SPC | Anoka, Blue Earth, Brown, Carver, Chisago, Cottonwood and 32 more | 96 min |
| Aug 27, 2:57 PM CDT | Severe Thunderstorm Watch | SPC | Anoka, Benton, Blue Earth, Brown, Carlton, Carver and 38 more | 7 hr |
| Aug 27, 3:46 PM CDT | Mesoscale Discussion | SPC | Bennett, Custer, Haakon, Jackson, Meade, Mellette and 3 more | 119 min |
| Aug 27, 6:17 PM CDT | Mesoscale Discussion | SPC | Aurora, Brule, Buffalo, Charles Mix, Davison, Douglas and 15 more | 88 min |
| Aug 27, 6:42 PM CDT | Severe Thunderstorm Watch | SPC | Aurora, Beadle, Bon Homme, Brule, Buffalo, Charles Mix and 17 more | 4 hr |
Nearby
Mesoscale Discussions in Minnesota, 2018Mesoscale Discussions in South Dakota, 2018Mesoscale Discussions in North Dakota, 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.