Alert archive / Tennessee / High Wind Warnings in 2021
High Wind Warning 4, NWS Morristown, TN
NWS Morristown, TN issued this high wind warning at Feb 21, 2021, 2:43 PM EST for 5 counties in Tennessee. It took effect at Feb 21, 2021, 7:00 PM EST. It was in force for 15 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 21, 2021, 2:43 PM EST (19:43 UTC)
- In effect from
- Feb 21, 2021, 7:00 PM EST
- Expired
- Feb 22, 2021, 10:00 AM EST
- In force
- 15 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 19:42 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 21, 10:00 PM EST | NON-TSTM WND GST 42 | Cades Cove, TN | CADES COVE WIND TOWER FROM GSMNP. |
| Feb 21, 10:00 PM EST | NON-TSTM WND GST 64 | 3 S Camp Creek, TN | NOAA ATDD WEATHER STATION SITE. |
| Feb 22, 3:00 AM EST | NON-TSTM WND GST 85 | 2 W Gatlinburg, TN | COVE MOUNTAIN |
| Feb 22, 4:00 AM EST | NON-TSTM WND GST 63 | 2 Ne Happy Valley, TN | LOOK ROCK WIND TOWER FROM GSMNP. |
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 12:00Z, 7.7 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
- 2131 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 161 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
850 WWUS74 KMRX 211943 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 243 PM EST Sun Feb 21 2021 TNZ041-043-072-074-087-220345- /O.UPG.KMRX.HW.A.0003.210222T0000Z-210222T1500Z/ /O.NEW.KMRX.HW.W.0004.210222T0000Z-210222T1500Z/ 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 243 PM EST Sun Feb 21 2021 ...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...South winds 25 to 40 mph with gusts up to 60 mph expected. * WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky Mountains, Sevier Smoky Mountains and Southeast Monroe Counties. * WHEN...From 7 PM this evening to 10 AM EST Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Isolated 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. && $$ TNZ018-045-047-220345- /O.NEW.KMRX.WI.Y.0005.210222T0000Z-210222T1500Z/ Johnson-Unicoi-Southeast Carter- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, and Hampton 243 PM EST Sun Feb 21 2021 ...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...South winds 15 to 30 mph with gusts up to 50 mph expected. * WHERE...Johnson, Unicoi and Southeast Carter Counties. * WHEN...From 7 PM this evening to 10 AM EST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
3 follow-up statements
418 WWUS74 KMRX 212007 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 307 PM EST Sun Feb 21 2021 TNZ041-043-072-074-087-220915- /O.CON.KMRX.HW.W.0004.210222T0000Z-210222T1500Z/ 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 307 PM EST Sun Feb 21 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...South winds 25 to 40 mph with gusts up to 65 mph expected. * WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky Mountains, Sevier Smoky Mountains and Southeast Monroe Counties. * WHEN...From 7 PM this evening to 10 AM EST Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Isolated 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. && $$ TNZ018-045-047-220915- /O.CON.KMRX.WI.Y.0005.210222T0000Z-210222T1500Z/ Johnson-Unicoi-Southeast Carter- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, and Hampton 307 PM EST Sun Feb 21 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...South winds 15 to 30 mph with gusts up to 50 mph expected. * WHERE...Johnson, Unicoi and Southeast Carter Counties. * WHEN...From 7 PM this evening to 10 AM EST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
093 WWUS74 KMRX 220218 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 918 PM EST Sun Feb 21 2021 TNZ041-043-072-074-087-221200- /O.CON.KMRX.HW.W.0004.000000T0000Z-210222T1500Z/ 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 918 PM EST Sun Feb 21 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 AM EST MONDAY... * WHAT...South winds 25 to 40 mph with gusts up to 65 mph expected. * WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky Mountains, Sevier Smoky Mountains and Southeast Monroe Counties. * WHEN...Until 10 AM EST Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Isolated 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. && $$ TNZ018-045-047-221200- /O.CON.KMRX.WI.Y.0005.000000T0000Z-210222T1500Z/ Johnson-Unicoi-Southeast Carter- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, and Hampton 918 PM EST Sun Feb 21 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY... * WHAT...South winds 15 to 30 mph with gusts up to 50 mph expected. * WHERE...Johnson, Unicoi and Southeast Carter Counties. * WHEN...Until 10 AM EST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
913 WWUS74 KMRX 220742 AAA NPWMRX URGENT - WEATHER MESSAGE...UPDATED National Weather Service Morristown TN 242 AM EST Mon Feb 22 2021 TNZ041-043-072-074-087-221500- /O.CON.KMRX.HW.W.0004.000000T0000Z-210222T1500Z/ 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 242 AM EST Mon Feb 22 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...South winds 25 to 40 mph with gusts up to 60 mph expected. * WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky Mountains, Sevier Smoky Mountains and Southeast Monroe Counties. * WHEN...Until 10 AM EST Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Isolated 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. && $$ TNZ018-045-047-221500- /O.CON.KMRX.WI.Y.0005.000000T0000Z-210222T1500Z/ Johnson-Unicoi-Southeast Carter- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, and Hampton 242 AM EST Mon Feb 22 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...South winds 15 to 30 mph with gusts up to 40 mph expected. * WHERE...Johnson, Unicoi and Southeast Carter Counties. * WHEN...Until 10 AM EST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 10:12 AM EST | High Wind Watch | MRX | Blount, Cocke, Greene, Monroe, Sevier | 5 hr |
| Feb 21, 2:43 PM EST | Wind Advisory | MRX | Carter, Johnson, Unicoi | 19 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.