Alert archive / Tennessee / Wind Advisories in 2021
Wind Advisory 4, NWS Morristown, TN
NWS Morristown, TN issued this wind advisory at Feb 15, 2021, 4:26 AM EST for 8 counties in Tennessee. It took effect at Feb 15, 2021, 4:00 PM EST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Feb 15, 2021, 4:26 AM EST (09:26 UTC)
- In effect from
- Feb 15, 2021, 4:00 PM EST
- Expired
- Feb 16, 2021, 12:00 AM EST
- In force
- 8 hr
- Issued by
- NWS Morristown, TN
Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, Monroe County, TN, Sevier County, TN, Unicoi County, TN
The radar
The Knoxville radar (KMRX), 41 km from the middle of the area, began a volume at 09:26 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
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 9.4 hours before the alert went out and 280 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
- 2 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 438 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 285 m²/s²
- 0-3 km storm-relative helicity
- 344 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
925 WWUS74 KMRX 150926 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 426 AM EST Mon Feb 15 2021 TNZ041-043-045-072-074-087-151800- /O.NEW.KMRX.WI.Y.0004.210215T2100Z-210216T0500Z/ Cocke Smoky Mountains-Southeast Greene-Unicoi- Blount Smoky Mountains-Sevier Smoky Mountains-Southeast Monroe- Including the cities of Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 426 AM EST Mon Feb 15 2021 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO MIDNIGHT EST TONIGHT... * WHAT...South winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...Portions of the east Tennessee mountains above 3500 feet elevation. * WHEN...From 4 PM this afternoon to midnight EST tonight. * 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. && $$ VAZ002-006-151500- /O.CON.KMRX.ZF.Y.0003.000000T0000Z-210215T1500Z/ Wise-Russell- Including the cities of Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, Hansonville, Lebanon, Dye, Castlewood, Honaker, and Rosedale 426 AM EST Mon Feb 15 2021 ...FREEZING FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Visibility one quarter mile or less in freezing fog. * WHERE...Wise and Russell Counties. * WHEN...Until 10 AM EST Monday. * IMPACTS...Hazardous driving conditions due to low visibility and potential frost on bridges. Black ice will be possible on area roads, and elevated surfaces will become icy. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Also, be alert for frost on bridge decks causing slippery roads. && $$
3 follow-up statements
732 WWUS74 KMRX 151627 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 1127 AM EST Mon Feb 15 2021 TNZ041-043-045-072-074-087-160030- /O.CON.KMRX.WI.Y.0004.210215T2100Z-210216T0500Z/ Cocke Smoky Mountains-Southeast Greene-Unicoi- Blount Smoky Mountains-Sevier Smoky Mountains-Southeast Monroe- Including the cities of Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 1127 AM EST Mon Feb 15 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO MIDNIGHT EST TONIGHT... * WHAT...South winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...Portions of the east Tennessee mountains above 3500 feet elevation. * WHEN...From 4 PM this afternoon to midnight EST tonight. * 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. && $$
919 WWUS74 KMRX 151941 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 241 PM EST Mon Feb 15 2021 TNZ041-043-072-074-160345- /O.UPG.KMRX.WI.Y.0004.210215T2100Z-210216T0500Z/ /O.NEW.KMRX.HW.W.0003.210215T2100Z-210216T0500Z/ Cocke Smoky Mountains-Southeast Greene-Blount Smoky Mountains- Sevier Smoky Mountains- Including the cities of Hartford, Cedar Creek, Cades Cove, Elkmont, and Gatlinburg 241 PM EST Mon Feb 15 2021 ...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...South winds 25 to 35 mph with gusts up to 70 mph expected. * WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky Mountains and Sevier Smoky Mountains Counties. * WHEN...Until midnight EST tonight. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ TNZ018-047-160345- /O.EXA.KMRX.WI.Y.0004.210215T2100Z-210216T0500Z/ Johnson-Southeast Carter- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, and Hampton 241 PM EST Mon Feb 15 2021 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...Southeast winds 15 to 25 mph with gusts up to 50 mph expected. 5 * WHERE...Johnson and Southeast Carter Counties. * WHEN...Until midnight EST tonight. * 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. && $$ TNZ045-087-160345- /O.CON.KMRX.WI.Y.0004.210215T2100Z-210216T0500Z/ Unicoi-Southeast Monroe- Including the cities of Erwin, Unicoi, Limestone Cove, Citico, and Coker Creek 241 PM EST Mon Feb 15 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...South winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Unicoi and Southeast Monroe Counties. * WHEN...Until midnight EST tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
224 WWUS74 KMRX 160336 AAA NPWMRX URGENT - WEATHER MESSAGE...UPDATED National Weather Service Morristown TN 1036 PM EST Mon Feb 15 2021 TNZ041-043-072-074-160500- /O.CON.KMRX.HW.W.0003.000000T0000Z-210216T0500Z/ Cocke Smoky Mountains-Southeast Greene-Blount Smoky Mountains- Sevier Smoky Mountains- Including the cities of Hartford, Cedar Creek, Cades Cove, Elkmont, and Gatlinburg 1036 PM EST Mon Feb 15 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...South winds 25 to 35 mph with gusts up to 60 mph. * WHERE...Cocke Smoky Mountains, Southeast Greene, Blount Smoky Mountains and Sevier Smoky Mountains Counties. * WHEN...Until midnight EST tonight. * 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. && $$ TNZ018-045-047-087-160500- /O.CON.KMRX.WI.Y.0004.000000T0000Z-210216T0500Z/ Johnson-Unicoi-Southeast Carter-Southeast Monroe- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, Hampton, Citico, and Coker Creek 1036 PM EST Mon Feb 15 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...Southeast winds 15 to 25 mph with gusts up to 50 mph expected. 5 * WHERE...Johnson and Southeast Carter Counties. * WHEN...Until midnight EST tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 2:41 PM EST | High Wind Warning | MRX | Blount, Cocke, Greene, Sevier | 9 hr |
| Feb 15, 4:42 PM EST | Special Weather Statement | MRX | Cocke, Grainger, Hamblen, Jefferson, Union | 48 min |
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.