Alert archive / Nebraska / Mesoscale Discussions in 2022
Mesoscale Discussion 2017
The Storm Prediction Center issued this mesoscale discussion at Dec 13, 2022, 1:41 PM MST for 6 counties in Colorado; 19 counties in Nebraska; 10 counties in South Dakota. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 13, 2022, 1:41 PM MST (20:41 UTC)
- Expired
- Dec 13, 2022, 5:45 PM MST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Blizzard
All 35 counties
Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Arthur County, NE, Banner County, NE, Box Butte County, NE, Chase County, NE, Cherry County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Kimball County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Bennett County, SD, Custer County, SD, Fall River County, SD, Haakon County, SD, Jackson County, SD, Jones County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Todd County, SD
The radar
The North Platte radar (KLNX), 146 km from the middle of the area, began a volume at 20:44 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, 8.7 hours before the alert went out and 477 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 611 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 248 m²/s²
- 0-3 km storm-relative helicity
- 206 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 |
|---|---|---|---|---|
| Dec 12, 7:01 PM MST | Mesoscale Discussion | SPC | Alamosa, Costilla, Huerfano, Las Animas | 2 hr |
| Dec 13, 3:24 AM MST | Mesoscale Discussion | SPC | Adams, Arapahoe, Logan, Morgan, Phillips, Sedgwick and 3 more | 5 hr |
| Dec 13, 10:14 AM MST | Mesoscale Discussion | SPC | Adams, Arapahoe, Cheyenne, Kit Carson, Logan, Morgan and 5 more | 3 hr |
| Dec 12, 10:29 PM MST | Mesoscale Discussion | SPC | Sheridan | 4 hr |
Nearby
Mesoscale Discussions in Nebraska, 2022Mesoscale Discussions in South Dakota, 2022Mesoscale Discussions in Colorado, 2022Every mesoscale discussion in 2022
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.