Alert archive / Oklahoma / Mesoscale Discussions in 2017
Mesoscale Discussion 1511
The Storm Prediction Center issued this mesoscale discussion at Aug 16, 2017, 7:30 PM CDT for 10 counties in Kansas; 19 counties in Missouri; 30 counties in Oklahoma. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2017, 7:30 PM CDT (00:30 UTC)
- Expired
- Aug 16, 2017, 9:00 PM CDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 59 counties
Allen County, KS, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Linn County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Cass County, MO, Cedar County, MO, Dade County, MO, Henry County, MO, Hickory County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, Lawrence County, MO, Newton County, MO, Pettis County, MO, Polk County, MO, Ray County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Craig County, OK, Creek County, OK, Custer County, OK, Garfield County, OK, Grady County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Mayes County, OK, McClain County, OK, Noble County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Pottawatomie County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK, Washita County, OK
The radar
The Tulsa radar (KINX), 77 km from the middle of the area, began a volume at 00:29 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
Springfield, MO (KSGF), launched 00:00Z, 0.5 hours before the alert went out and 192 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
- 947 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 928 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 212 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 11.6
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 17, 4:29 PM CDT | Mesoscale Discussion | SPC | Grant, Greeley, Hamilton, Kearny, Morton, Stanton and 2 more | 91 min |
| Aug 17, 6:00 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Logan, Rawlins, Sherman, Thomas, Wallace | 2 hr |
| Aug 16, 9:55 PM CDT | Mesoscale Discussion | SPC | Barry, McDonald, Newton | 95 min |
Nearby
Mesoscale Discussions in Oklahoma, 2017Mesoscale Discussions in Missouri, 2017Mesoscale Discussions in Kansas, 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.