Alert archive / Arkansas / Mesoscale Discussions in 2008
Mesoscale Discussion 527
The Storm Prediction Center issued this mesoscale discussion at Mar 31, 2008, 8:12 PM CDT for 4 states. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- Mar 31, 2008, 8:12 PM CDT (01:12 UTC)
- Expired
- Mar 31, 2008, 9:15 PM CDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
All 52 counties
Clark County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Greene County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Lonoke County, AR, Montgomery County, AR, Perry County, AR, Pike County, AR, Poinsett County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Scott County, AR, Sevier County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Alexander County, IL, Jackson County, IL, Pulaski County, IL, Union County, IL, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Dunklin County, MO, New Madrid County, MO, Ripley County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO, Atoka County, OK, Bryan County, OK, Choctaw County, OK, McCurtain County, OK, Pushmataha County, OK
The radar
The Little Rock radar (KLZK), 92 km from the middle of the area, began a volume at 01:12 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
Springfield, MO (KSGF), launched 00:00Z, 1.2 hours before the alert went out and 192 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
- 25 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 88 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 |
|---|---|---|---|---|
| Mar 31, 9:12 PM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Crittenden, Lee, Lincoln, Monroe, Phillips and 1 more | 4 hr |
| Apr 1, 12:42 AM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Desha and 3 more | 63 min |
| Apr 1, 1:06 AM CDT | Severe Thunderstorm Watch | SPC | Ashley, Chicot, Columbia, Hempstead, Lafayette, Little River and 3 more | 4 hr |
| Apr 1, 3:25 AM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Desha and 5 more | 95 min |
Nearby
Mesoscale Discussions in Arkansas, 2008Mesoscale Discussions in Missouri, 2008Mesoscale Discussions in Oklahoma, 2008Every mesoscale discussion in 2008
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.