Alert archive / Tennessee / Mesoscale Discussions in 2005
Mesoscale Discussion 2349
The Storm Prediction Center issued this mesoscale discussion at Oct 21, 2005, 1:56 PM CDT for Cherokee County, DeKalb County, Alabama; 8 counties in Georgia; 19 counties in Tennessee. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 21, 2005, 1:56 PM CDT (18:56 UTC)
- Expired
- Oct 21, 2005, 4:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 29 counties
Cherokee County, AL, DeKalb County, AL, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Floyd County, GA, Gordon County, GA, Murray County, GA, Walker County, GA, Whitfield County, GA, Anderson County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Cumberland County, TN, Grainger County, TN, Hamblen County, TN, Hamilton County, TN, Jefferson County, TN, Knox County, TN, Loudon County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Morgan County, TN, Polk County, TN, Rhea County, TN, Roane County, TN, Union County, TN
The radar
The Northeast Alabama radar (KHTX), 133 km from the middle of the area, began a volume at 18:56 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
Nashville Metro, TN (KBNA), launched 12:00Z, 6.9 hours before the alert went out and 195 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
- 23 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 1018 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 147 m²/s²
- 0-3 km storm-relative helicity
- 109 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 |
|---|---|---|---|---|
| Oct 21, 1:20 PM CDT | Mesoscale Discussion | SPC | Burke, Screven | 115 min |
Nearby
Mesoscale Discussions in Tennessee, 2005Mesoscale Discussions in Georgia, 2005Mesoscale Discussions in Alabama, 2005Every mesoscale discussion in 2005
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.