Alert archive / North Dakota / Mesoscale Discussions in 2012
Mesoscale Discussion 1454
The Storm Prediction Center issued this mesoscale discussion at Jul 12, 2012, 2:17 PM CDT for 8 counties in Minnesota; 18 counties in North Dakota; 16 counties in South Dakota. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2012, 2:17 PM CDT (19:17 UTC)
- Expired
- Jul 12, 2012, 3:45 PM CDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 42 counties
Big Stone County, MN, Clay County, MN, Grant County, MN, Norman County, MN, Polk County, MN, Stevens County, MN, Traverse County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, Eddy County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, LaMoure County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Steele County, ND, Stutsman County, ND, Traill County, ND, Walsh County, ND, Beadle County, SD, Brown County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hyde County, SD, Marshall County, SD, McPherson County, SD, Roberts County, SD, Spink County, SD
The radar
The Aberdeen radar (KABR), 107 km from the middle of the area, began a volume at 19:22 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 12:00Z, 7.3 hours before the alert went out and 168 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
- 317 J/kg
- Mixed-layer CIN
- -359 J/kg
- Mixed-layer LCL
- 1288 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 227 m²/s²
- 0-3 km storm-relative helicity
- 352 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 |
|---|---|---|---|---|
| Jul 12, 5:15 PM CDT | Mesoscale Discussion | SPC | Barnes, Cass, Foster, Grand Forks, Griggs, Kidder and 6 more | 60 min |
Nearby
Mesoscale Discussions in North Dakota, 2012Mesoscale Discussions in South Dakota, 2012Mesoscale Discussions in Minnesota, 2012Every mesoscale discussion in 2012
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.