Alert archive / Oklahoma / Mesoscale Discussions in 2016
Mesoscale Discussion 1771
The Storm Prediction Center issued this mesoscale discussion at Oct 6, 2016, 6:30 PM CDT for 28 counties in Oklahoma; Hardeman County, Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 6, 2016, 6:30 PM CDT (23:30 UTC)
- Expired
- Oct 6, 2016, 8:30 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 29 counties
Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, McClain County, OK, Noble County, OK, Oklahoma County, OK, Payne County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Hardeman County, TX
The radar
The Norman radar (KTLX), 105 km from the middle of the area, began a volume at 23:32 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, 11.5 hours before the alert went out and 98 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
- 2179 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 678 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 324 m²/s²
- 0-3 km storm-relative helicity
- 341 m²/s²
- Significant tornado parameter
- 3.2
- Supercell composite
- 16.3
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 |
|---|---|---|---|---|
| Oct 5, 11:03 PM CDT | Mesoscale Discussion | SPC | Canadian, Garfield, Kay, Kingfisher, Logan, Noble and 3 more | 117 min |
| Oct 6, 1:39 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 17 more | 2 hr |
| Oct 6, 2:31 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 35 more | 9 hr |
| Oct 6, 5:42 PM CDT | Mesoscale Discussion | SPC | Coke, Dickens, Fisher, Glasscock, Howard, Kent and 9 more | 2 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2016Mesoscale Discussions in Texas, 2016Every mesoscale discussion in 2016
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.