Alert archive / Nebraska / Mesoscale Discussions in 2023
Mesoscale Discussion 1813
The Storm Prediction Center issued this mesoscale discussion at Aug 2, 2023, 2:38 AM CDT for 17 counties in Iowa; 27 counties in Missouri; 38 counties in Nebraska. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2023, 2:38 AM CDT (07:38 UTC)
- Expired
- Aug 2, 2023, 5:15 AM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 5%
All 82 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Cass County, IA, Clarke County, IA, Decatur County, IA, Fremont County, IA, Harrison County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Ringgold County, IA, Shelby County, IA, Taylor County, IA, Union County, IA, Wayne County, IA, Adair County, MO, Andrew County, MO, Atchison County, MO, Audrain County, MO, Boone County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Howard County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Monroe County, MO, Nodaway County, MO, Putnam County, MO, Randolph County, MO, Saline County, MO, Shelby County, MO, Sullivan County, MO, Worth County, MO, Adams County, NE, Buffalo County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Clay County, NE, Colfax County, NE, Dodge County, NE, Douglas County, NE, Fillmore County, NE, Franklin County, NE, Gage County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Jefferson County, NE, Johnson County, NE, Kearney County, NE, Lancaster County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Nuckolls County, NE, Otoe County, NE, Pawnee County, NE, Phelps County, NE, Platte County, NE, Polk County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Thayer County, NE, Washington County, NE, Webster County, NE, York County, NE
The radar
The Topeka radar (KTWX), 134 km from the middle of the area, began a volume at 07:38 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
Topeka, KS (KTOP), launched 00:00Z, 7.6 hours before the alert went out and 125 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
- 2975 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 2057 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 21.7
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 2, 5:30 PM CDT | Mesoscale Discussion | SPC | Bates, Benton, Bollinger, Boone, Callaway, Camden and 37 more | 3 hr |
| Aug 1, 7:49 PM CDT | Mesoscale Discussion | SPC | Arthur, Chase, Dawson, Deuel, Dundy, Frontier and 8 more | 86 min |
| Aug 1, 10:21 PM CDT | Severe Thunderstorm Watch | SPC | Buffalo, Chase, Custer, Dawson, Dundy, Franklin and 12 more | 6 hr |
Nearby
Mesoscale Discussions in Nebraska, 2023Mesoscale Discussions in Missouri, 2023Mesoscale Discussions in Iowa, 2023Every mesoscale discussion in 2023
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.