Alert archive / Kansas / Mesoscale Discussions in 2018
Mesoscale Discussion 458
The Storm Prediction Center issued this mesoscale discussion at May 18, 2018, 11:14 PM CDT for 56 counties in Kansas; 5 counties in Nebraska. It was in force for 46 min.
The area
The outline as issued.
The facts
- Issued
- May 18, 2018, 11:14 PM CDT (04:14 UTC)
- Expired
- May 19, 2018, 12:00 AM CDT
- In force
- 46 min
- Issued by
- the Storm Prediction Center
All 61 counties
Barber County, KS, Barton County, KS, Butler County, KS, Cheyenne County, KS, Clark County, KS, Comanche County, KS, Decatur County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Harper County, KS, Harvey County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kingman County, KS, Kiowa County, KS, Lane County, KS, Lincoln County, KS, Logan County, KS, Marion County, KS, McPherson County, KS, Meade County, KS, Mitchell County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Phillips County, KS, Pratt County, KS, Rawlins County, KS, Reno County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Scott County, KS, Sedgwick County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Stafford County, KS, Sumner County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Franklin County, NE, Furnas County, NE, Harlan County, NE, Hitchcock County, NE, Red Willow County, NE
The radar
The Dodge City radar (KDDC), 87 km from the middle of the area, began a volume at 04:14 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
Dodge City, (KDDC), launched 00:00Z, 4.2 hours before the alert went out and 84 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
- 1976 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 2001 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 15.1
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 |
|---|---|---|---|---|
| May 18, 8:39 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Butler, Cowley, Ellsworth, Harper, Harvey and 16 more | 5 hr |
| May 18, 9:08 PM CDT | Mesoscale Discussion | SPC | Barber, Cheyenne, Clark, Comanche, Decatur, Edwards and 33 more | 67 min |
| May 19, 7:50 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 10 more | 115 min |
| May 19, 12:39 PM CDT | Mesoscale Discussion | SPC | Chautauqua, Cowley, Elk, Harper, Montgomery, Sumner and 1 more | 3 hr |
| May 19, 1:42 PM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Clay, Cloud, Dickinson, Doniphan and 17 more | 3 hr |
| May 19, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Bourbon, Butler, Chase, Chautauqua, Cherokee and 15 more | 11 hr |
| May 19, 4:21 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Atchison, Coffey, Douglas, Franklin, Geary and 12 more | 3 hr |
| May 19, 6:11 PM CDT | Mesoscale Discussion | SPC | Allen, Bourbon, Chautauqua, Cherokee, Crawford, Labette and 3 more | 2 hr |
Nearby
Mesoscale Discussions in Kansas, 2018Mesoscale Discussions in Nebraska, 2018Every mesoscale discussion in 2018
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.