Alert archive / Arkansas / Mesoscale Discussions in 2006
Mesoscale Discussion 149
The Storm Prediction Center issued this mesoscale discussion at Feb 16, 2006, 1:10 PM CST for 12 counties in Arkansas; 12 counties in Oklahoma. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Feb 16, 2006, 1:10 PM CST (19:10 UTC)
- Expired
- Feb 16, 2006, 2:45 PM CST
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 24 counties
Benton County, AR, Crawford County, AR, Franklin County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Newton County, AR, Polk County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Choctaw County, OK, Haskell County, OK, Latimer County, OK, LeFlore County, OK, McCurtain County, OK, McIntosh County, OK, Muskogee County, OK, Pittsburg County, OK, Pushmataha County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 71 km from the middle of the area, began a volume at 19:12 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 12:00Z, 7.2 hours before the alert went out and 250 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
- 22 J/kg
- Mixed-layer CIN
- -433 J/kg
- Mixed-layer LCL
- 810 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 530 m²/s²
- 0-3 km storm-relative helicity
- 609 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 |
|---|---|---|---|---|
| Feb 16, 1:49 PM CST | Tornado Watch | SPC | Baxter, Boone, Carroll, Clark, Cleburne, Conway and 38 more | 7 hr |
| Feb 16, 4:55 PM CST | Mesoscale Discussion | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lee and 4 more | 95 min |
| Feb 16, 5:13 PM CST | Tornado Watch | SPC | Arkansas, Clay, Craighead, Crittenden, Cross, Greene and 12 more | 6 hr |
Nearby
Mesoscale Discussions in Arkansas, 2006Mesoscale Discussions in Oklahoma, 2006Every mesoscale discussion in 2006
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.