Alert archive / Tennessee / High Wind Watches in 2021
High Wind Watch 3, NWS Morristown, TN
NWS Morristown, TN issued this high wind watch at Feb 21, 2021, 10:12 AM EST for 5 counties in Tennessee. It took effect at Feb 21, 2021, 7:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 21, 2021, 10:12 AM EST (15:12 UTC)
- In effect from
- Feb 21, 2021, 7:00 PM EST
- Expired
- Feb 21, 2021, 2:43 PM EST
- In force
- 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 15:15 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, 3.2 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.
196 WWUS74 KMRX 211512 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 1012 AM EST Sun Feb 21 2021 TNZ041-043-072-074-087-212315- /O.NEW.KMRX.HW.A.0003.210222T0000Z-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 1012 AM EST Sun Feb 21 2021 ...HIGH WIND WATCH IN EFFECT FROM 7 PM EST THIS EVENING THROUGH MONDAY MORNING... * WHAT...South winds 25 to 40 mph with gusts up to 60 mph possible. * WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky Mountains, Sevier Smoky Mountains and Southeast Monroe Counties. * WHEN...From 7 PM EST this evening through Monday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Isolated power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
1 follow-up statement
850 WWUS74 KMRX 211943 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 243 PM EST Sun Feb 21 2021 TNZ041-043-072-074-087-220345- /O.UPG.KMRX.HW.A.0003.210222T0000Z-210222T1500Z/ /O.NEW.KMRX.HW.W.0004.210222T0000Z-210222T1500Z/ Cocke Smoky Mountains-Southeast Greene-Blount Smoky Mountains- Sevier Smoky Mountains-Southeast Monroe- Including the cities of Hartford, Cedar Creek, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 243 PM EST Sun Feb 21 2021 ...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...South winds 25 to 40 mph with gusts up to 60 mph expected. * WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky Mountains, Sevier Smoky Mountains and Southeast Monroe Counties. * WHEN...From 7 PM this evening to 10 AM EST Monday. * IMPACTS...Damaging winds will blow down trees and power lines. Isolated power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ 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. && $$
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 2:43 PM EST | High Wind Warning | MRX | Blount, Cocke, Greene, Monroe, Sevier | 19 hr |
| Feb 21, 2:43 PM EST | Wind Advisory | MRX | Carter, Johnson, Unicoi | 19 hr |
Nearby
High Wind Watches in Tennessee, 2021Every high wind watch 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.