Alert archive / Oklahoma / Mesoscale Discussions in 2004
Mesoscale Discussion 1956
The Storm Prediction Center issued this mesoscale discussion at Aug 11, 2004, 5:23 AM CDT for 4 states. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Aug 11, 2004, 5:23 AM CDT (10:23 UTC)
- Expired
- Aug 11, 2004, 7:00 AM CDT
- In force
- 97 min
- Issued by
- the Storm Prediction Center
All 87 counties
Benton County, AR, Carroll County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Crawford County, AR, Cross County, AR, Faulkner County, AR, Franklin County, AR, Independence County, AR, Jackson County, AR, Johnson County, AR, Lee County, AR, Logan County, AR, Lonoke County, AR, Madison County, AR, Monroe County, AR, Newton County, AR, Perry County, AR, Poinsett County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, White County, AR, Woodruff County, AR, Yell County, AR, McDonald County, MO, Adair County, OK, Atoka County, OK, Blaine County, OK, Bryan County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cherokee County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Craig County, OK, Creek County, OK, Custer County, OK, Delaware County, OK, Garvin County, OK, Grady County, OK, Haskell County, OK, Hughes County, OK, Jackson County, OK, Jefferson County, OK, Johnston County, OK, Kingfisher County, OK, Kiowa County, OK, LeFlore County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Marshall County, OK, Mayes County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Stephens County, OK, Tillman County, OK, Wagoner County, OK, Washita County, OK, Clay County, TX, Montague County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Western Arkansas radar (KSRX), 70 km from the middle of the area, began a volume at 10:26 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, 10.4 hours before the alert went out and 207 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
- 1974 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1562 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Aug 11, 1:07 AM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 30 more | 113 min |
| Aug 11, 1:35 AM CDT | Severe Thunderstorm Watch | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 37 more | 5 hr |
| Aug 11, 6:49 AM CDT | Mesoscale Discussion | SPC | Conway, Crawford, Faulkner, Franklin, Garland, Hot Spring and 20 more | 116 min |
| Aug 11, 12:22 PM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Desha and 4 more | 2 hr |
| Aug 10, 9:15 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Canadian, Cleveland, Creek, Dewey and 23 more | 60 min |
| Aug 10, 9:30 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Blaine, Canadian, Creek, Dewey, Ellis and 20 more | 7 hr |
| Aug 10, 10:16 PM CDT | Mesoscale Discussion | SPC | Beaver, Texas | 59 min |
| Aug 10, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | Beaver, Ellis, Harper, Texas | 5 hr |
| Aug 10, 11:43 PM CDT | Mesoscale Discussion | SPC | Blaine, Canadian, Creek, Custer, Dewey, Garfield and 10 more | 62 min |
| Aug 11, 1:05 AM CDT | Severe Thunderstorm Watch | SPC | Atoka, Beckham, Blaine, Bryan, Caddo, Canadian and 34 more | 6 hr |
| Aug 11, 2:42 AM CDT | Mesoscale Discussion | SPC | Alfalfa, Atoka, Beckham, Blaine, Bryan, Caddo and 49 more | 2 hr |
| Aug 11, 1:16 PM CDT | Mesoscale Discussion | SPC | Anderson, Austin, Bandera, Bastrop, Bell, Bexar and 44 more | 2 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2004Mesoscale Discussions in Arkansas, 2004Mesoscale Discussions in Texas, 2004Every mesoscale discussion in 2004
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.