Alert archive / Oklahoma / Mesoscale Discussions in 2017
Mesoscale Discussion 700
The Storm Prediction Center issued this mesoscale discussion at May 11, 2017, 6:07 PM CDT for 4 states. It was in force for 83 min.
The area
The outline as issued.
The facts
- Issued
- May 11, 2017, 6:07 PM CDT (23:07 UTC)
- Expired
- May 11, 2017, 7:30 PM CDT
- In force
- 83 min
- Issued by
- the Storm Prediction Center
All 36 counties
Benton County, AR, Washington County, AR, Chautauqua County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Barry County, MO, Jasper County, MO, McDonald County, MO, Newton County, MO, Adair County, OK, Canadian County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Garfield County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Mayes County, OK, Muskogee County, OK, Noble County, OK, Nowata County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 79 km from the middle of the area, began a volume at 23:07 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
Norman, OK (KOUN), launched 12:00Z, 11.1 hours before the alert went out and 129 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
- 592 J/kg
- Mixed-layer CIN
- -121 J/kg
- Mixed-layer LCL
- 1262 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.8
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 11, 12:56 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more | 8 hr |
| May 11, 1:37 PM CDT | Mesoscale Discussion | SPC | Hempstead, Howard, Lafayette, Little River, Miller, Sevier | 2 hr |
| May 11, 2:43 PM CDT | Severe Thunderstorm Watch | SPC | Columbia, Hempstead, Howard, Lafayette, Little River, Miller and 3 more | 9 hr |
| May 11, 2:49 PM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Clark, Cleburne and 34 more | 116 min |
| May 11, 3:17 PM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Baxter, Boone, Bradley, Calhoun, Clark and 45 more | 7 hr |
| May 11, 5:49 PM CDT | Mesoscale Discussion | SPC | Arkansas, Baxter, Boone, Bradley, Calhoun, Carroll and 56 more | 56 min |
| May 11, 11:44 AM CDT | Mesoscale Discussion | SPC | Barber, Butler, Chautauqua, Comanche, Cowley, Elk and 6 more | 3 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2017Mesoscale 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.