Alert archive / Tennessee / Wind Advisories in 2020
Wind Advisory 13, NWS Morristown, TN
NWS Morristown, TN issued this wind advisory at Apr 21, 2020, 2:35 AM EDT for Carter County, Johnson County, Unicoi County, Tennessee; Russell County, Washington County, City of Bristol, Virginia. It took effect at Apr 21, 2020, 10:00 AM EDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Apr 21, 2020, 2:35 AM EDT (06:35 UTC)
- In effect from
- Apr 21, 2020, 10:00 AM EDT
- Expired
- Apr 21, 2020, 9:48 PM EDT
- In force
- 12 hr
- Issued by
- NWS Morristown, TN
Counties Carter County, TN, Johnson County, TN, Unicoi County, TN, City of Bristol, VA, Russell County, VA, Washington County, VA
The radar
The Knoxville radar (KMRX), 122 km from the middle of the area, began a volume at 06:36 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, 6.6 hours before the alert went out and 204 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
- 1468 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
477 WWUS74 KMRX 210635 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 235 AM EDT Tue Apr 21 2020 TNZ018-045-047-VAZ006-008-211800- /O.NEW.KMRX.WI.Y.0013.200421T1400Z-200422T0200Z/ Johnson-Unicoi-Southeast Carter-Russell-Washington- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, Hampton, Hansonville, Lebanon, Dye, Castlewood, Honaker, Rosedale, Benhams, Bristol VA, and Abingdon 235 AM EDT Tue Apr 21 2020 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 10 PM EDT THIS EVENING... * WHAT...West winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...In Tennessee, Johnson, Unicoi and Southeast Carter Counties. In Virginia, Russell and Washington Counties. * WHEN...From 10 AM this morning to 10 PM EDT 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. && $$
4 follow-up statements
394 WWUS74 KMRX 210721 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 321 AM EDT Tue Apr 21 2020 VAZ006-008-211800- /O.NEW.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ /O.CON.KMRX.WI.Y.0013.200421T1400Z-200422T0200Z/ Russell-Washington- Including the cities of Hansonville, Lebanon, Dye, Castlewood, Honaker, Rosedale, Benhams, Bristol VA, and Abingdon 321 AM EDT Tue Apr 21 2020 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 PM EDT THIS EVENING... ...FROST ADVISORY IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... * WHAT...For the Frost Advisory, temperatures as low as 35 will result in frost formation. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Russell and Washington Counties. * WHEN...For the Frost Advisory, from 5 AM to 10 AM EDT Wednesday. For the Wind Advisory, from 10 AM this morning to 10 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ VAZ001-002-005-211800- /O.NEW.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ Lee-Wise-Scott- Including the cities of Rose Hill, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, and Hiltons 321 AM EDT Tue Apr 21 2020 ...FROST ADVISORY IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... * WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...Lee, Wise and Scott Counties. * WHEN...From 5 AM to 10 AM EDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ TNZ018-045-047-211800- /O.CON.KMRX.WI.Y.0013.200421T1400Z-200422T0200Z/ Johnson-Unicoi-Southeast Carter- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, and Hampton 321 AM EDT Tue Apr 21 2020 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 PM EDT THIS EVENING... * WHAT...West winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...In Tennessee, Johnson, Unicoi and Southeast Carter Counties. In Virginia, Russell and Washington Counties. * WHEN...From 10 AM this morning to 10 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
098 WWUS74 KMRX 211649 AAA NPWMRX URGENT - WEATHER MESSAGE...UPDATED National Weather Service Morristown TN 1249 PM EDT Tue Apr 21 2020 VAZ006-008-220200- /O.CON.KMRX.WI.Y.0013.000000T0000Z-200422T0200Z/ /O.CON.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ Russell-Washington- Including the cities of Hansonville, Lebanon, Dye, Castlewood, Honaker, Rosedale, Benhams, Bristol VA, and Abingdon 1249 PM EDT Tue Apr 21 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... * WHAT...For the Frost Advisory, temperatures as low as 35 will result in frost formation. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Russell and Washington Counties. * WHEN...For the Frost Advisory, from 5 AM to 10 AM EDT Wednesday. For the Wind Advisory, from 10 AM this morning to 10 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ VAZ001-002-005-220200- /O.CON.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ Lee-Wise-Scott- Including the cities of Rose Hill, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, and Hiltons 1249 PM EDT Tue Apr 21 2020 ...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... * WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...Lee, Wise and Scott Counties. * WHEN...From 5 AM to 10 AM EDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ TNZ018-045-047-220200- /O.CON.KMRX.WI.Y.0013.000000T0000Z-200422T0200Z/ Johnson-Unicoi-Southeast Carter- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, and Hampton 1249 PM EDT Tue Apr 21 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... * WHAT...West winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...In Tennessee, Johnson, Unicoi and Southeast Carter Counties. In Virginia, Russell and Washington Counties. * WHEN...From 10 AM this morning to 10 PM EDT 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. && $$
329 WWUS74 KMRX 211909 AAA NPWMRX URGENT - WEATHER MESSAGE...UPDATED National Weather Service Morristown TN 309 PM EDT Tue Apr 21 2020 TNZ018-045-047-220200- /O.EXA.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ /O.CON.KMRX.WI.Y.0013.000000T0000Z-200422T0200Z/ Johnson-Unicoi-Southeast Carter- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, and Hampton 309 PM EDT Tue Apr 21 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...FROST ADVISORY IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... * WHAT...West winds 15 to 25 mph with gusts up to 40 mph expected this evening. For the Frost Advisory, temperatures as low as 35 will result in frost formation, mainly in sheltered valleys. * WHERE...Johnson, Unicoi and Southeast Carter Counties. * WHEN...The Wind Advisory is in effect until to 10 PM EDT this evening. For the Frost Advisory, from 5 AM to 10 AM EDT Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ NCZ060-061-TNZ012>017-041>044-046-072-074-087-220200- /O.EXA.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ Cherokee-Clay-Scott-Campbell-Claiborne-Hancock-Hawkins-Sullivan- Cocke Smoky Mountains-Northwest Greene-Southeast Greene- Washington-Northwest Carter-Blount Smoky Mountains- Sevier Smoky Mountains-Southeast Monroe- Including the cities of Andrews, Marble, Topton, Hiawasse Dam, Murphy, Unaka, Violet, Shooting Creek, Brasstown, Hayesville, Tusquitee, Big South Fork National, Oneida, Smokey Junction, Elgin, Huntsville, Norma, Slick Rock, Fincastle, La Follette, Elk Valley, Jellico, White Oak, Caryville, Royal Blue, Lone Mountain, Sandlick, Springdale, Arthur, Harrogate-Shawanee, Clairfield, Howard Quarter, Evanston, Sneedville, Treadway, Kyles Ford, Mooresburg, Kingsport, Bristol TN, South Holston Dam, Hartford, Greeneville, Cedar Creek, Johnson City, Elizabethton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 309 PM EDT Tue Apr 21 2020 ...FROST ADVISORY IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... * WHAT...For the Frost Advisory, temperatures as low as 35 will result in frost formation. * WHERE...Portions of east Tennessee and southwest North Carolina. * WHEN...From 5 AM to 10 AM EDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ VAZ006-008-220200- /O.CON.KMRX.WI.Y.0013.000000T0000Z-200422T0200Z/ /O.CON.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ Russell-Washington- Including the cities of Hansonville, Lebanon, Dye, Castlewood, Honaker, Rosedale, Benhams, Bristol VA, and Abingdon 309 PM EDT Tue Apr 21 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... * WHAT...For the Frost Advisory, temperatures as low as 35 will result in frost formation. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Russell and Washington Counties. * WHEN...For the Frost Advisory, from 5 AM to 10 AM EDT Wednesday. The Wind Advisory is in effect until 10 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ VAZ001-002-005-220200- /O.CON.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ Lee-Wise-Scott- Including the cities of Rose Hill, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, and Hiltons 309 PM EDT Tue Apr 21 2020 ...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... * WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...Lee, Wise and Scott Counties. * WHEN...From 5 AM to 10 AM EDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
527 WWUS74 KMRX 220148 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 948 PM EDT Tue Apr 21 2020 TNZ018-045-047-VAZ006-008-221400- /O.CAN.KMRX.WI.Y.0013.000000T0000Z-200422T0200Z/ /O.CON.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ Johnson-Unicoi-Southeast Carter-Russell-Washington- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Erwin, Unicoi, Limestone Cove, Hampton, Hansonville, Lebanon, Dye, Castlewood, Honaker, Rosedale, Benhams, Bristol VA, and Abingdon 948 PM EDT Tue Apr 21 2020 ...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... ...WIND ADVISORY IS CANCELLED... * WHAT...West winds 15 to 25 mph with gusts up to 40 mph expected this evening. For the Frost Advisory, temperatures as low as 35 will result in frost formation, mainly in sheltered valleys. * WHERE...In Tennessee, Johnson, Southeast Carter and Unicoi Counties. In Virginia, Russell and Washington Counties. * WHEN...From 5 AM to 10 AM EDT Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NCZ060-061-TNZ012>017-041>044-046-072-074-087-VAZ001-002-005- 221400- /O.CON.KMRX.FR.Y.0006.200422T0900Z-200422T1400Z/ Cherokee-Clay-Scott-Campbell-Claiborne-Hancock-Hawkins-Sullivan- Cocke Smoky Mountains-Northwest Greene-Southeast Greene- Washington-Northwest Carter-Blount Smoky Mountains- Sevier Smoky Mountains-Southeast Monroe-Lee-Wise- Including the cities of Andrews, Marble, Topton, Hiawasse Dam, Murphy, Unaka, Violet, Shooting Creek, Brasstown, Hayesville, Tusquitee, Big South Fork National, Oneida, Smokey Junction, Elgin, Huntsville, Norma, Slick Rock, Fincastle, La Follette, Elk Valley, Jellico, White Oak, Caryville, Royal Blue, Lone Mountain, Sandlick, Springdale, Arthur, Harrogate-Shawanee, Clairfield, Howard Quarter, Evanston, Sneedville, Treadway, Kyles Ford, Mooresburg, Kingsport, Bristol TN, South Holston Dam, Hartford, Greeneville, Cedar Creek, Johnson City, Elizabethton, Cades Cove, Elkmont, Gatlinburg, Citico, Coker Creek, Rose Hill, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, and Hiltons 948 PM EDT Tue Apr 21 2020 ...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 10 AM EDT WEDNESDAY... * WHAT...For the Frost Advisory, temperatures as low as 35 will result in frost formation. * WHERE...Portions of east Tennessee and southwest North Carolina. * WHEN...From 5 AM to 10 AM EDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 3:21 AM EDT | Frost Advisory | MRX | Blount, Campbell, Carter, Claiborne, Cocke, Greene and 9 more | 31 hr |
Nearby
Wind Advisories in Tennessee, 2020Wind Advisories in Virginia, 2020Every wind advisory in 2020
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.