Alert archive / Oklahoma / Mesoscale Discussions in 2018
Mesoscale Discussion 1202
The Storm Prediction Center issued this mesoscale discussion at Jul 29, 2018, 10:49 PM MDT for 4 states. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2018, 10:49 PM MDT (04:49 UTC)
- Expired
- Jul 29, 2018, 11:45 PM MDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 80 counties
Baca County, CO, Bent County, CO, Crowley County, CO, Kiowa County, CO, Otero County, CO, Prowers County, CO, Barber County, KS, Clark County, KS, Comanche County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Kiowa County, KS, Meade County, KS, Morton County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Wichita County, KS, Alfalfa County, OK, Beaver County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cimarron County, OK, Cleveland County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Hughes County, OK, Jackson County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, McClain County, OK, Murray County, OK, Okfuskee County, OK, Oklahoma County, OK, Payne County, OK, Pontotoc County, OK, Pottawatomie County, OK, Roger Mills County, OK, Seminole County, OK, Stephens County, OK, Texas County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Carson County, TX, Collingsworth County, TX, Dallam County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Potter County, TX, Roberts County, TX, Sherman County, TX, Wheeler County, TX
The radar
The Dodge City radar (KDDC), 133 km from the middle of the area, began a volume at 04:50 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
Dodge City, (KDDC), launched 00:00Z, 4.8 hours before the alert went out and 134 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
- 595 J/kg
- Mixed-layer CIN
- -207 J/kg
- Mixed-layer LCL
- 1366 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 257 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 6:18 PM MDT | Mesoscale Discussion | SPC | Baca, Prowers | 87 min |
| Jul 29, 7:03 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Crowley, Kiowa, Otero, Prowers | 6 hr |
| Jul 30, 11:17 AM MDT | Mesoscale Discussion | SPC | Barber, Butler, Chautauqua, Cowley, Elk, Greenwood and 7 more | 2 hr |
| Jul 29, 8:44 PM MDT | Mesoscale Discussion | SPC | Alfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 17 more | 61 min |
| Jul 29, 9:04 PM MDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 26 more | 7 hr |
| Jul 30, 1:01 AM MDT | Mesoscale Discussion | SPC | Atoka, Bryan, Caddo, Carter, Choctaw, Cleveland and 22 more | 59 min |
| Jul 30, 2:49 AM MDT | Severe Thunderstorm Watch | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Cotton and 9 more | 5 hr |
| Jul 30, 5:27 AM MDT | Mesoscale Discussion | SPC | Atoka, Bryan, Choctaw, Pushmataha | 93 min |
| Jul 30, 2:47 PM MDT | Mesoscale Discussion | SPC | Adair, Cherokee, Craig, Creek, Delaware, Haskell and 14 more | 2 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2018Mesoscale Discussions in Kansas, 2018Mesoscale Discussions in Texas, 2018Every mesoscale discussion in 2018
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.