Alert archive / Tennessee / High Wind Watches in 2021
High Wind Watch 4, NWS Morristown, TN
NWS Morristown, TN issued this high wind watch at Mar 16, 2021, 2:41 PM EDT for 8 counties in Tennessee. It took effect at Mar 17, 2021, 8:00 PM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Mar 16, 2021, 2:41 PM EDT (18:41 UTC)
- In effect from
- Mar 17, 2021, 8:00 PM EDT
- Expired
- Mar 17, 2021, 3:32 AM EDT
- In force
- 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 18:44 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 12:00Z, 6.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 289 m²/s²
- 0-3 km storm-relative helicity
- 405 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
189 WWUS74 KMRX 161841 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 241 PM EDT Tue Mar 16 2021 TNZ018-041-043-045-047-072-074-087-170245- /O.NEW.KMRX.HW.A.0004.210318T0000Z-210318T1800Z/ Johnson-Cocke Smoky Mountains-Southeast Greene-Unicoi- Southeast Carter-Blount Smoky Mountains-Sevier Smoky Mountains- Southeast Monroe- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 241 PM EDT Tue Mar 16 2021 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... * WHAT...South winds 25 to 35 mph with gusts up to 70 mph possible. * WHERE...Portions of the east Tennessee mountains and foothills. * WHEN...From Wednesday evening through Thursday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread 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. && $$
2 follow-up statements
987 WWUS74 KMRX 170147 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 947 PM EDT Tue Mar 16 2021 TNZ018-041-043-045-047-072-074-087-171000- /O.CON.KMRX.HW.A.0004.210318T0000Z-210318T1800Z/ Johnson-Cocke Smoky Mountains-Southeast Greene-Unicoi- Southeast Carter-Blount Smoky Mountains-Sevier Smoky Mountains- Southeast Monroe- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 947 PM EDT Tue Mar 16 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... * WHAT...South winds 25 to 35 mph with gusts up to 70 mph possible. * WHERE...Portions of the east Tennessee mountains and foothills. * WHEN...From Wednesday evening through Thursday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
799 WWUS74 KMRX 170732 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 332 AM EDT Wed Mar 17 2021 TNZ018-041-043-045-047-072-074-087-171545- /O.UPG.KMRX.HW.A.0004.210318T0000Z-210318T1800Z/ /O.NEW.KMRX.HW.W.0005.210318T0000Z-210318T1800Z/ Johnson-Cocke Smoky Mountains-Southeast Greene-Unicoi- Southeast Carter-Blount Smoky Mountains-Sevier Smoky Mountains- Southeast Monroe- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 332 AM EDT Wed Mar 17 2021 ...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 2 PM EDT THURSDAY... * WHAT...South winds 25 to 35 mph with gusts up to 70 mph expected. * WHERE...Portions of the East Tennessee mountains and foothills. * WHEN...From 8 PM this evening to 2 PM EDT Thursday. * 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. && $$ Diegan
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 16, 11:41 AM EDT | River Flood Warning | MRX | Hamilton | 4 days |
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.