Alert archive / Arkansas / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 737
The Storm Prediction Center issued this severe thunderstorm watch at Aug 11, 2004, 1:35 AM CDT for 43 counties in Arkansas; McDonald County, Missouri; 13 counties in Oklahoma. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 11, 2004, 1:35 AM CDT (06:35 UTC)
- Expired
- Aug 11, 2004, 7:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 57 counties
Baxter County, AR, Benton County, AR, Boone 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, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Johnson County, AR, Lawrence County, AR, Lee County, AR, Logan County, AR, Lonoke County, AR, Madison County, AR, Marion County, AR, Monroe County, AR, Newton County, AR, Perry County, AR, Poinsett County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sharp 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, Cherokee County, OK, Craig County, OK, Delaware County, OK, Haskell County, OK, LeFlore County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Rogers County, OK, Sequoyah County, OK, Wagoner County, OK
The radar
The Western Arkansas radar (KSRX), 89 km from the middle of the area, began a volume at 06:37 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.
Warnings issued inside it
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 2:05 AM CDT | Severe Thunderstorm Warning | LZK | Stone | 60 min |
| Aug 11, 4:33 AM CDT | Severe Thunderstorm Warning | LZK | Van Buren | 62 min |
| Aug 11, 5:36 AM CDT | Severe Thunderstorm Warning | LZK | Van Buren | 39 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 6.6 hours before the alert went out and 343 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
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, 5:23 AM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Cleburne, Conway, Craighead, Crawford and 27 more | 97 min |
| 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 |
Nearby
Severe Thunderstorm Watches in Arkansas, 2004Severe Thunderstorm Watches in Oklahoma, 2004Severe Thunderstorm Watches in Missouri, 2004Every severe thunderstorm watch 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.