Alert archive / Arkansas / Mesoscale Discussions in 2004
Mesoscale Discussion 1712
The Storm Prediction Center issued this mesoscale discussion at Jul 16, 2004, 3:37 PM CDT for 38 counties in Arkansas; 8 counties in Oklahoma. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Jul 16, 2004, 3:37 PM CDT (20:37 UTC)
- Expired
- Jul 16, 2004, 5:30 PM CDT
- In force
- 113 min
- Issued by
- the Storm Prediction Center
All 46 counties
Arkansas County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Conway County, AR, Crawford County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Franklin County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Jefferson County, AR, Johnson County, AR, Lincoln County, AR, Little River County, AR, Logan County, AR, Lonoke County, AR, Monroe County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Yell County, AR, Haskell County, OK, Latimer County, OK, LeFlore County, OK, McCurtain County, OK, McIntosh County, OK, Pittsburg County, OK, Pushmataha County, OK, Sequoyah County, OK
The radar
The Little Rock radar (KLZK), 99 km from the middle of the area, began a volume at 20:37 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 8.6 hours before the alert went out and 265 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
- 850 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 1441 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jul 15, 7:34 PM CDT | Mesoscale Discussion | SPC | Ashley, Chicot, Drew | 86 min |
| Jul 15, 8:01 PM CDT | Mesoscale Discussion | SPC | Benton, Bradley, Calhoun, Carroll, Clark, Cleveland and 34 more | 119 min |
| Jul 16, 8:35 AM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Baxter, Boone, Calhoun, Carroll, Clark and 43 more | 4 hr |
| Jul 16, 12:23 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Chicot, Desha, Drew, Jefferson and 4 more | 97 min |
| Jul 16, 12:45 PM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 12 more | 6 hr |
| Jul 16, 3:03 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Chicot, Cleveland, Desha and 5 more | 117 min |
| Jul 16, 6:44 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 6 more | 61 min |
Nearby
Mesoscale Discussions in Arkansas, 2004Mesoscale Discussions in Oklahoma, 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.