Alert archive / Tennessee / Wind Advisories in 2021

Wind Advisory 3, NWS Morristown, TN

February 4, 20218 counties in Tennessee

NWS Morristown, TN issued this wind advisory at Feb 4, 2021, 2:19 AM CST for 8 counties in Tennessee. It took effect at Feb 4, 2021, 3:00 PM CST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Feb 4, 2021, 2:19 AM CST (08:19 UTC)
In effect from
Feb 4, 2021, 3:00 PM CST
Expired
Feb 5, 2021, 1:00 AM CST
In force
10 hr
Issued by
NWS Morristown, TN

Counties Bledsoe County, TN, Carter County, TN, Marion County, TN, Morgan County, TN, Polk County, TN, Scott County, TN, Sequatchie County, TN, Unicoi County, TN

The radar

The Knoxville radar (KMRX), 93 km from the middle of the area, began a volume at 08:18 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 00:00Z, 8.3 hours before the alert went out and 210 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.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2021-02-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2021-02-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1606 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

924 
WWUS74 KMRX 040819
NPWMRX

URGENT - WEATHER MESSAGE
National Weather Service Morristown TN
319 AM EST Thu Feb 4 2021

TNZ041-043-072-074-087-042100-
/O.UPG.KMRX.HW.A.0002.210204T2100Z-210205T0900Z/
/O.NEW.KMRX.HW.W.0002.210204T2100Z-210205T0700Z/
Cocke Smoky Mountains-Southeast Greene-Blount Smoky Mountains-
Sevier Smoky Mountains-Southeast Monroe-
Including the cities of Hartford, Cedar Creek, Cades Cove, 
Elkmont, Gatlinburg, Citico, and Coker Creek
319 AM EST Thu Feb 4 2021

...HIGH WIND WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 2 AM
EST FRIDAY...

* WHAT...South winds 20 to 40 mph with gusts up to 70 mph 
  expected.

* WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky 
  Mountains, Sevier Smoky Mountains and Southeast Monroe 
  Counties.

* WHEN...From 4 PM this afternoon to 2 AM EST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

TNZ012-035-081-082-098-042100-
/O.NEW.KMRX.WI.Y.0003.210204T2100Z-210205T0300Z/
Scott-Morgan-Sequatchie-Bledsoe-Marion-
Including the cities of Big South Fork National, Oneida, 
Smokey Junction, Elgin, Huntsville, Norma, Slick Rock, 
Pine Orchard, High Point, Petros, Cagle, Dunlap, Cartwright, 
Lone Oak, Old Cumberland, Palio, Melvine, Mount Crest, Pikeville,
Brayton, South Pittsburg, Haletown (Guild), Jasper, 
Martin Springs, Whitwell, Powells Crossroads, and Monteagle
319 AM EST Thu Feb 4 2021 /219 AM CST Thu Feb 4 2021/

...WIND ADVISORY IN EFFECT FROM 4 PM EST /3 PM CST/ THIS
AFTERNOON TO 10 PM EST /9 PM CST/ THIS EVENING...

* WHAT...South winds 10 to 20 mph with gusts up to 40 mph 
  expected.

* WHERE...Scott, Morgan, Sequatchie, Bledsoe and Marion Counties.

* WHEN...From 4 PM EST /3 PM CST/ this afternoon to 10 PM EST /9 
  PM CST/ this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

TNZ045-047-102-042100-
/O.NEW.KMRX.WI.Y.0003.210204T2100Z-210205T0700Z/
Unicoi-Southeast Carter-East Polk-
Including the cities of Erwin, Unicoi, Limestone Cove, Hampton, 
Big Frog Mountain, Ducktown, and Turtletown
319 AM EST Thu Feb 4 2021

...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 2 AM EST
FRIDAY...

* WHAT...South winds 15 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Unicoi, Southeast Carter and East Polk Counties.

* WHEN...From 4 PM this afternoon to 2 AM EST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
2 follow-up statements
886 
WWUS74 KMRX 042028 AAA
NPWMRX

URGENT - WEATHER MESSAGE...UPDATED
National Weather Service Morristown TN
328 PM EST Thu Feb 4 2021

TNZ041-043-072-074-087-050500-
/O.CON.KMRX.HW.W.0002.210204T2100Z-210205T0700Z/
Cocke Smoky Mountains-Southeast Greene-Blount Smoky Mountains-
Sevier Smoky Mountains-Southeast Monroe-
Including the cities of Hartford, Cedar Creek, Cades Cove, 
Elkmont, Gatlinburg, Citico, and Coker Creek
328 PM EST Thu Feb 4 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EST FRIDAY...

* WHAT...South winds 20 to 40 mph with gusts up to 70 mph 
  expected.

* WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky 
  Mountains, Sevier Smoky Mountains and Southeast Monroe 
  Counties.

* WHEN...From 4 PM this afternoon to 2 AM EST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

TNZ012-035-081-082-098-050300-
/O.CON.KMRX.WI.Y.0003.210204T2100Z-210205T0300Z/
Scott-Morgan-Sequatchie-Bledsoe-Marion-
Including the cities of Big South Fork National, Oneida, 
Smokey Junction, Elgin, Huntsville, Norma, Slick Rock, 
Pine Orchard, High Point, Petros, Cagle, Dunlap, Cartwright, 
Lone Oak, Old Cumberland, Palio, Melvine, Mount Crest, Pikeville,
Brayton, South Pittsburg, Haletown (Guild), Jasper, 
Martin Springs, Whitwell, Powells Crossroads, and Monteagle
328 PM EST Thu Feb 4 2021 /228 PM CST Thu Feb 4 2021/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST /9 PM CST/
THIS EVENING...

* WHAT...South winds 10 to 20 mph with gusts up to 40 mph 
  expected.

* WHERE...Scott, Morgan, Sequatchie, Bledsoe and Marion Counties.

* WHEN...From 4 PM EST /3 PM CST/ this afternoon to 10 PM EST /9 
  PM CST/ this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

TNZ045-047-102-050500-
/O.CON.KMRX.WI.Y.0003.210204T2100Z-210205T0700Z/
Unicoi-Southeast Carter-East Polk-
Including the cities of Erwin, Unicoi, Limestone Cove, Hampton, 
Big Frog Mountain, Ducktown, and Turtletown
328 PM EST Thu Feb 4 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST FRIDAY...

* WHAT...South winds 15 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Unicoi, Southeast Carter and East Polk Counties.

* WHEN...From 4 PM this afternoon to 2 AM EST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

TD
789 
WWUS74 KMRX 050252
NPWMRX

URGENT - WEATHER MESSAGE
National Weather Service Morristown TN
952 PM EST Thu Feb 4 2021

TNZ012-035-081-082-098-050400-
/O.EXP.KMRX.WI.Y.0003.000000T0000Z-210205T0300Z/
Scott-Morgan-Sequatchie-Bledsoe-Marion-
Including the cities of Big South Fork National, Oneida, 
Smokey Junction, Elgin, Huntsville, Norma, Slick Rock, 
Pine Orchard, High Point, Petros, Cagle, Dunlap, Cartwright, 
Lone Oak, Old Cumberland, Palio, Melvine, Mount Crest, Pikeville,
Brayton, South Pittsburg, Haletown (Guild), Jasper, 
Martin Springs, Whitwell, Powells Crossroads, and Monteagle
952 PM EST Thu Feb 4 2021 /852 PM CST Thu Feb 4 2021/

...WIND ADVISORY WILL EXPIRE AT 10 PM EST /9 PM CST/ THIS
EVENING...

$$

TNZ041-043-072-074-087-050700-
/O.CON.KMRX.HW.W.0002.000000T0000Z-210205T0700Z/
Cocke Smoky Mountains-Southeast Greene-Blount Smoky Mountains-
Sevier Smoky Mountains-Southeast Monroe-
Including the cities of Hartford, Cedar Creek, Cades Cove, 
Elkmont, Gatlinburg, Citico, and Coker Creek
952 PM EST Thu Feb 4 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EST FRIDAY...

* WHAT...South winds 20 to 40 mph with gusts up to 70 mph 
  expected.

* WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky 
  Mountains, Sevier Smoky Mountains and Southeast Monroe 
  Counties.

* WHEN...From 4 PM this afternoon to 2 AM EST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

TNZ045-047-102-050700-
/O.CON.KMRX.WI.Y.0003.000000T0000Z-210205T0700Z/
Unicoi-Southeast Carter-East Polk-
Including the cities of Erwin, Unicoi, Limestone Cove, Hampton, 
Big Frog Mountain, Ducktown, and Turtletown
952 PM EST Thu Feb 4 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST FRIDAY...

* WHAT...South winds 15 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Unicoi, Southeast Carter and East Polk Counties.

* WHEN...From 4 PM this afternoon to 2 AM EST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 4, 2:19 AM CSTHigh Wind WarningMRXBlount, Cocke, Greene, Monroe, Sevier23 hr

Nearby

Wind Advisories in Tennessee, 2021Every wind 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.