Alert archive / Nebraska / Mesoscale Discussions in 2020
Mesoscale Discussion 892
The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2020, 6:43 PM CDT for 4 states. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Jun 9, 2020, 6:43 PM CDT (23:43 UTC)
- Expired
- Jun 9, 2020, 8:15 PM CDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
- Concerning
- Tornado watch 273
All 33 counties
Fremont County, IA, Mills County, IA, Page County, IA, Taylor County, IA, Atchison County, KS, Brown County, KS, Doniphan County, KS, Jackson County, KS, Jefferson County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Washington County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, DeKalb County, MO, Gentry County, MO, Holt County, MO, Nodaway County, MO, Platte County, MO, Worth County, MO, Cass County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE
The radar
The Topeka radar (KTWX), 125 km from the middle of the area, began a volume at 23:45 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
Omaha, NE (KOAX), launched 12:00Z, 11.7 hours before the alert went out and 134 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
- 384 J/kg
- Mixed-layer CIN
- -304 J/kg
- Mixed-layer LCL
- 994 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 71 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 9, 2:36 PM CDT | Tornado Watch | SPC | Fremont, Mills | 7 hr |
| Jun 9, 2:03 PM CDT | Mesoscale Discussion | SPC | Clay, Cloud, Jewell, Mitchell, Ottawa, Republic and 2 more | 87 min |
| Jun 8, 7:16 PM CDT | Mesoscale Discussion | SPC | Blaine, Custer, Logan, Loup, Rock | 59 min |
| Jun 8, 9:01 PM CDT | Mesoscale Discussion | SPC | Arthur, Banner, Box Butte, Chase, Cheyenne, Dawes and 9 more | 119 min |
| Jun 8, 9:13 PM CDT | Mesoscale Discussion | SPC | Blaine, Boyd, Brown, Keya Paha, Lincoln, Logan and 3 more | 2 hr |
| Jun 9, 12:46 AM CDT | Mesoscale Discussion | SPC | Arthur, Blaine, Boyd, Brown, Chase, Cherry and 23 more | 89 min |
Nearby
Mesoscale Discussions in Nebraska, 2020Mesoscale Discussions in Kansas, 2020Mesoscale Discussions in Missouri, 2020Every mesoscale discussion in 2020
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.