Alert archive / Oklahoma / Mesoscale Discussions in 2014
Mesoscale Discussion 1789
The Storm Prediction Center issued this mesoscale discussion at Oct 1, 2014, 11:00 PM CDT for 24 counties in Oklahoma; Wichita County, Wilbarger County, Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 1, 2014, 11:00 PM CDT (04:00 UTC)
- Expired
- Oct 2, 2014, 1:30 AM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 26 counties
Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Jefferson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, McClain County, OK, Noble County, OK, Oklahoma County, OK, Pawnee County, OK, Payne County, OK, Pottawatomie County, OK, Stephens County, OK, Tillman County, OK, Wichita County, TX, Wilbarger County, TX
The radar
The Norman radar (KTLX), 52 km from the middle of the area, began a volume at 04:00 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, 4.0 hours before the alert went out and 39 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
- 1781 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1644 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 265 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 10.2
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 |
|---|---|---|---|---|
| Oct 2, 10:00 AM CDT | Mesoscale Discussion | SPC | Adair, Atoka, Carter, Cherokee, Cleveland, Coal and 23 more | 3 hr |
| Oct 2, 12:20 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Atoka, Bryan, Carter, Cherokee, Choctaw and 31 more | 8 hr |
| Oct 2, 1:55 PM CDT | Severe Thunderstorm Watch | SPC | McCurtain | 9 hr |
| Oct 2, 3:16 PM CDT | Mesoscale Discussion | SPC | Adair, Atoka, Bryan, Cherokee, Choctaw, Coal and 21 more | 59 min |
| Oct 2, 4:51 PM CDT | Mesoscale Discussion | SPC | Bryan, Love | 54 min |
| Oct 2, 1:39 PM CDT | Mesoscale Discussion | SPC | Bosque, Camp, Collin, Comanche, Cooke, Coryell and 37 more | 66 min |
| Oct 2, 5:25 PM CDT | Mesoscale Discussion | SPC | Harrison, Marion | 95 min |
| Oct 2, 5:48 PM CDT | Tornado Watch | SPC | Bowie, Cass, Harrison, Marion | 8 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2014Mesoscale Discussions in Texas, 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.