Alert archive / Oklahoma / Mesoscale Discussions in 2017
Mesoscale Discussion 1553
The Storm Prediction Center issued this mesoscale discussion at Aug 22, 2017, 1:54 PM MDT for Curry County, Roosevelt County, New Mexico; 50 counties in Oklahoma; 42 counties in Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 22, 2017, 1:54 PM MDT (19:54 UTC)
- Expired
- Aug 22, 2017, 4:30 PM MDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 5%
All 94 counties
Curry County, NM, Roosevelt County, NM, Atoka County, OK, Beckham County, OK, Bryan County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Choctaw 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, Kingfisher County, OK, Kiowa County, OK, Latimer County, OK, LeFlore County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Marshall County, OK, McClain County, OK, McCurtain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Noble County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Tulsa County, OK, Wagoner County, OK, Washita County, OK, Archer County, TX, Armstrong County, TX, Bailey County, TX, Baylor County, TX, Briscoe County, TX, Castro County, TX, Childress County, TX, Clay County, TX, Cochran County, TX, Collingsworth County, TX, Cooke County, TX, Cottle County, TX, Crosby County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Fannin County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Grayson County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Haskell County, TX, Hockley County, TX, Jack County, TX, Kent County, TX, King County, TX, Knox County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Montague County, TX, Motley County, TX, Parmer County, TX, Stonewall County, TX, Swisher County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX
The radar
The Altus AFB radar (KFDR), 45 km from the middle of the area, began a volume at 19:54 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, 7.9 hours before the alert went out and 162 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
- 144 J/kg
- Mixed-layer CIN
- -218 J/kg
- Mixed-layer LCL
- 1383 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 234 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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Mesoscale Discussions in Oklahoma, 2017Mesoscale Discussions in Texas, 2017Mesoscale Discussions in New Mexico, 2017Every mesoscale discussion in 2017
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.