Alert archive / Oklahoma / Mesoscale Discussions in 2015
Mesoscale Discussion 1716
The Storm Prediction Center issued this mesoscale discussion at Aug 19, 2015, 3:57 AM CDT for 42 counties in Oklahoma; 26 counties in Texas. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2015, 3:57 AM CDT (08:57 UTC)
- Expired
- Aug 19, 2015, 5:00 AM CDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
All 68 counties
Caddo County, OK, Canadian County, OK, Carter County, OK, Cherokee County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Creek County, OK, Garvin County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Haskell County, OK, Hughes County, OK, Jackson County, OK, Jefferson County, OK, Johnston County, OK, Kiowa County, OK, Latimer County, OK, Lincoln County, OK, Logan County, OK, Mayes County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Stephens County, OK, Tillman County, OK, Tulsa County, OK, Wagoner County, OK, Washita County, OK, Archer County, TX, Armstrong County, TX, Baylor County, TX, Briscoe County, TX, Castro County, TX, Childress County, TX, Clay County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Hockley County, TX, King County, TX, Knox County, TX, Lamb County, TX, Lubbock County, TX, Motley County, TX, Swisher County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Altus AFB radar (KFDR), 43 km from the middle of the area, began a volume at 08:58 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 00:00Z, 9.0 hours before the alert went out and 183 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
- 1871 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1662 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 241 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 7:17 PM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Craig, Delaware, Mayes, Ottawa and 3 more | 88 min |
| Aug 18, 11:03 PM CDT | Severe Thunderstorm Watch | SPC | Beckham, Custer, Dewey, Ellis, Greer, Harmon and 4 more | 6 hr |
| Aug 18, 8:24 PM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Collingsworth, Deaf Smith and 9 more | 3 hr |
| Aug 19, 2:45 PM CDT | Mesoscale Discussion | SPC | Anderson, Bell, Bosque, Burnet, Cherokee, Coryell and 28 more | 3 hr |
| Aug 19, 3:25 PM CDT | Mesoscale Discussion | SPC | Bandera, Brewster, Concho, Crockett, Edwards, Gillespie and 14 more | 2 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2015Mesoscale Discussions in Texas, 2015Every mesoscale discussion in 2015
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.