Alert archive / Tennessee / Dense Fog Advisories in 2021
Dense Fog Advisory 8, NWS Nashville, TN
NWS Nashville, TN issued this dense fog advisory at Nov 6, 2021, 2:30 AM CDT for 13 counties in Tennessee. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Nov 6, 2021, 2:30 AM CDT (07:30 UTC)
- Expired
- Nov 6, 2021, 10:00 AM CDT
- In force
- 8 hr
- Issued by
- NWS Nashville, TN
Counties Bedford County, TN, Coffee County, TN, Cumberland County, TN, Giles County, TN, Grundy County, TN, Lawrence County, TN, Lewis County, TN, Marshall County, TN, Maury County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN
The radar
The Northeast Alabama radar (KHTX), 74 km from the middle of the area, began a volume at 07:27 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
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 7.5 hours before the alert went out and 298 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1131 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -81 m²/s²
- 0-3 km storm-relative helicity
- -39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
Nearby
Dense Fog Advisories in Tennessee, 2021Every dense fog advisory in 2021
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.