Alert archive / Oklahoma / Mesoscale Discussions in 2014
Mesoscale Discussion 1977
The Storm Prediction Center issued this mesoscale discussion at Dec 14, 2014, 6:22 PM CST for 5 counties in Kansas; 36 counties in Oklahoma; 4 counties in Texas. It was in force for 83 min.
The area
The outline as issued.
The facts
- Issued
- Dec 14, 2014, 6:22 PM CST (00:22 UTC)
- Expired
- Dec 14, 2014, 7:45 PM CST
- In force
- 83 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 45 counties
Cowley County, KS, Harper County, KS, Kingman County, KS, Stafford County, KS, Sumner County, KS, Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Cleveland County, OK, Coal County, OK, Creek County, OK, Garfield County, OK, Garvin County, OK, Grant County, OK, Hughes County, OK, Johnston County, OK, Kay County, OK, Latimer County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Marshall County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Noble County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Tulsa County, OK, Wagoner County, OK, Delta County, TX, Fannin County, TX, Grayson County, TX, Lamar County, TX
The radar
The Norman radar (KTLX), 63 km from the middle of the area, began a volume at 00:26 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, 0.4 hours before the alert went out and 79 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
- 985 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 184 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 6.6
The text
As transmitted, in the capitals the NWS used until 2016.
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Mesoscale Discussions in Oklahoma, 2014Mesoscale Discussions in Kansas, 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.