Alert archive / Tennessee / High Wind Warnings in 2021
High Wind Warning 2, NWS Morristown, TN
NWS Morristown, TN issued this high wind warning at Feb 4, 2021, 3:19 AM EST for 5 counties in Tennessee. It took effect at Feb 4, 2021, 4:00 PM EST. It was in force for 10 hr. 4 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 4, 2021, 3:19 AM EST (08:19 UTC)
- In effect from
- Feb 4, 2021, 4:00 PM EST
- Expired
- Feb 5, 2021, 2:00 AM EST
- In force
- 10 hr
- Issued by
- NWS Morristown, TN
Counties Blount County, TN, Cocke County, TN, Greene County, TN, Monroe County, TN, Sevier County, TN
The radar
The Knoxville radar (KMRX), 42 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 4, 9:00 PM EST | NON-TSTM WND GST 68 | 2 Nnw Camp Creek, TN | |
| Feb 4, 9:53 PM EST | NON-TSTM WND GST 40 | 1 Nnw Alcoa, TN | MEASURED AT KTYS. |
| Feb 4, 10:00 PM EST | NON-TSTM WND GST 54 | 2 Nne Happy Valley, TN | MEASURED ON LOOK ROCK. |
| Feb 4, 10:00 PM EST | NON-TSTM WND GST 83 | 4 E Wears Valley, TN | 83 MPH GUST ON COVE MOUNTAIN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 8.3 hours before the alert went out and 278 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
- 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
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 4, 3:19 AM EST | Wind Advisory | MRX | Bledsoe, Carter, Marion, Morgan, Polk, Scott and 2 more | 23 hr |
Nearby
High Wind Warnings in Tennessee, 2021Every high wind warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.