Alert archive / Kansas / Mesoscale Discussions in 2017
Mesoscale Discussion 502
The Storm Prediction Center issued this mesoscale discussion at Apr 15, 2017, 9:20 PM CDT for 46 counties in Kansas; 9 counties in Missouri. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Apr 15, 2017, 9:20 PM CDT (02:20 UTC)
- Expired
- Apr 15, 2017, 10:45 PM CDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 55 counties
Anderson County, KS, Atchison County, KS, Barber County, KS, Barton County, KS, Butler County, KS, Chase County, KS, Clay County, KS, Coffey County, KS, Comanche County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Edwards County, KS, Ellsworth County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Kingman County, KS, Kiowa County, KS, Leavenworth County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Miami County, KS, Morris County, KS, Osage County, KS, Ottawa County, KS, Pawnee County, KS, Pottawatomie County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Riley County, KS, Rush County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Stafford County, KS, Wabaunsee County, KS, Woodson County, KS, Wyandotte County, KS, Buchanan County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, DeKalb County, MO, Jackson County, MO, Lafayette County, MO, Platte County, MO, Ray County, MO
The radar
The Wichita radar (KICT), 97 km from the middle of the area, began a volume at 02:23 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 (KFOE), launched 00:00Z, 2.3 hours before the alert went out and 146 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
- 1238 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1567 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 8.5
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 |
|---|---|---|---|---|
| Apr 15, 7:02 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Ellsworth, Harvey, Kingman, Lincoln, McPherson and 5 more | 5 hr |
| Apr 15, 7:22 PM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Dickinson, Doniphan, Geary, Jackson and 6 more | 53 min |
| Apr 15, 7:35 PM CDT | Mesoscale Discussion | SPC | Barber, Clark, Comanche, Edwards, Ford, Gray and 6 more | 85 min |
| Apr 16, 2:02 PM CDT | Mesoscale Discussion | SPC | Bollinger, Butler, Cape Girardeau, Dunklin, Madison, Mississippi and 8 more | 2 hr |
Nearby
Mesoscale Discussions in Kansas, 2017Mesoscale Discussions in Missouri, 2017Every mesoscale discussion in 2017
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.