Alert archive / Minnesota / Mesoscale Discussions in 2011
Mesoscale Discussion 1265
The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2011, 4:51 PM CDT for 10 counties in Minnesota; 8 counties in North Dakota; 8 counties in South Dakota. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Jun 17, 2011, 4:51 PM CDT (21:51 UTC)
- Expired
- Jun 17, 2011, 6:15 PM CDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
All 26 counties
Big Stone County, MN, Chippewa County, MN, Clay County, MN, Grant County, MN, Lac qui Parle County, MN, Pope County, MN, Stevens County, MN, Swift County, MN, Traverse County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, LaMoure County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Stutsman County, ND, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Marshall County, SD, Roberts County, SD
The radar
The Aberdeen radar (KABR), 88 km from the middle of the area, began a volume at 21:52 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
Aberdeen, SD (KABR), launched 12:00Z, 9.9 hours before the alert went out and 111 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
- 35 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 5:34 PM CDT | Tornado Watch | SPC | Big Stone, Traverse, Wilkin | 5 hr |
| Jun 17, 6:44 PM CDT | Mesoscale Discussion | SPC | Jackson, Nobles, Rock | 91 min |
| Jun 16, 8:26 PM CDT | Mesoscale Discussion | SPC | Charles Mix, Gregory, Lyman, Mellette, Todd, Tripp | 64 min |
Nearby
Mesoscale Discussions in Minnesota, 2011Mesoscale Discussions in North Dakota, 2011Mesoscale Discussions in South Dakota, 2011Every mesoscale discussion in 2011
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.