Alert archive / Arkansas / Mesoscale Discussions in 2004
Mesoscale Discussion 1055
The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2004, 12:42 PM CDT for 26 counties in Arkansas; Dunklin County, Missouri. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 2, 2004, 12:42 PM CDT (17:42 UTC)
- Expired
- Jun 2, 2004, 2:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 27 counties
Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Faulkner County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Johnson County, AR, Lawrence County, AR, Logan County, AR, Mississippi County, AR, Perry County, AR, Poinsett County, AR, Pope County, AR, Randolph County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Dunklin County, MO
The radar
The Little Rock radar (KLZK), 68 km from the middle of the area, began a volume at 17:43 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
Little Rock, AR (KLZK), launched 12:00Z, 5.7 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
- 1922 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 537 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.0
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 |
|---|---|---|---|---|
| Jun 2, 1:30 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 26 more | 5 hr |
| Jun 2, 2:35 PM CDT | Mesoscale Discussion | SPC | Crawford, Franklin, Sebastian, Washington | 115 min |
| Jun 2, 4:49 PM CDT | Mesoscale Discussion | SPC | Clark, Cleveland, Conway, Dallas, Faulkner, Garland and 22 more | 56 min |
| Jun 2, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | Calhoun, Clark, Cleburne, Cleveland, Columbia, Conway and 37 more | 6 hr |
| Jun 2, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Craighead, Crittenden, Cross, Lee, Mississippi, Phillips and 2 more | 5 hr |
Nearby
Mesoscale Discussions in Arkansas, 2004Mesoscale Discussions in Missouri, 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.