Alert archive / Oklahoma / Mesoscale Discussions in 2014
Mesoscale Discussion 1859
The Storm Prediction Center issued this mesoscale discussion at Oct 12, 2014, 9:47 PM CDT for Barber County, Harper County, Sumner County, Kansas; 20 counties in Oklahoma; 16 counties in Texas. It was in force for 58 min.
The area
The outline as issued.
The facts
- Issued
- Oct 12, 2014, 9:47 PM CDT (02:47 UTC)
- Expired
- Oct 12, 2014, 10:45 PM CDT
- In force
- 58 min
- Issued by
- the Storm Prediction Center
All 39 counties
Barber County, KS, Harper County, KS, Sumner County, KS, Alfalfa County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Jefferson County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, McClain County, OK, Noble County, OK, Oklahoma County, OK, Stephens County, OK, Tillman County, OK, Woods County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Fisher County, TX, Foard County, TX, Haskell County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Scurry County, TX, Shackelford County, TX, Stonewall County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Altus AFB radar (KFDR), 56 km from the middle of the area, began a volume at 02:48 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 2.8 hours before the alert went out and 161 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
- 51 J/kg
- Mixed-layer CIN
- -430 J/kg
- Mixed-layer LCL
- 1221 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 352 m²/s²
- 0-3 km storm-relative helicity
- 337 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Oct 12, 7:59 PM CDT | Severe Thunderstorm Watch | SPC | Chautauqua, Cowley, Elk, Sumner | 7 hr |
| Oct 13, 12:00 AM CDT | Mesoscale Discussion | SPC | Cherokee | 90 min |
| Oct 13, 1:59 AM CDT | Mesoscale Discussion | SPC | Chautauqua, Elk | 91 min |
| Oct 13, 12:55 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Cherokee, Choctaw, Craig, Delaware, Haskell and 12 more | 7 hr |
| Oct 13, 2:43 AM CDT | Mesoscale Discussion | SPC | Choctaw, McCurtain | 92 min |
| Oct 13, 3:22 AM CDT | Tornado Watch | SPC | McCurtain | 8 hr |
| Oct 12, 7:45 PM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Borden, Brown, Callahan, Clay and 31 more | 7 hr |
| Oct 12, 10:17 PM CDT | Mesoscale Discussion | SPC | Collin, Cooke, Dallas, Delta, Denton, Ellis and 20 more | 58 min |
| Oct 12, 11:08 PM CDT | Tornado Watch | SPC | Bosque, Collin, Comanche, Cooke, Coryell, Dallas and 29 more | 7 hr |
| Oct 13, 6:34 AM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Bell, Brazos, Burleson, Cherokee and 25 more | 86 min |
| Oct 13, 7:08 AM CDT | Tornado Watch | SPC | Sabine | 7 hr |
| Oct 13, 10:20 AM CDT | Mesoscale Discussion | SPC | Sabine | 115 min |
| Oct 13, 11:10 AM CDT | Tornado Watch | SPC | Chambers, Hardin, Jasper, Jefferson, Liberty, Newton and 2 more | 8 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2014Mesoscale Discussions in Texas, 2014Mesoscale Discussions in Kansas, 2014Every mesoscale discussion in 2014
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.