Alert archive / Tennessee / Winter Storm Warnings in 2021
Winter Storm Warning 1, NWS Morristown, TN
NWS Morristown, TN issued this winter storm warning at Jan 7, 2021, 4:40 AM EST for Cherokee County, Clay County, North Carolina; 14 counties in Tennessee; Washington County, City of Bristol, Virginia. It took effect at Jan 7, 2021, 7:00 PM EST. It was in force for 25 hr. 44 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
- Jan 7, 2021, 4:40 AM EST (09:40 UTC)
- In effect from
- Jan 7, 2021, 7:00 PM EST
- Expired
- Jan 8, 2021, 8:07 PM EST
- In force
- 25 hr
- Issued by
- NWS Morristown, TN
Counties Cherokee County, NC, Clay County, NC, Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Hamblen County, TN, Hawkins County, TN, Jefferson County, TN, Johnson County, TN, Monroe County, TN, Polk County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Washington County, TN, City of Bristol, VA, Washington County, VA
The radar
The Knoxville radar (KMRX), 36 km from the middle of the area, began a volume at 09:44 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 8, 1:00 AM EST | SNOW 0.1 | 1 S Sevierville, TN | |
| Jan 8, 5:01 AM EST | SNOW 1 | 1 Ese Jearoldstown, TN | SNOW ACCUMULATION 1/2 TO 1 INCH NEAR THE BAILEYTON AREA. |
| Jan 8, 5:03 AM EST | SNOW 1 | 2 Ne Fall Branch, TN | SNOWFALL BETWEEN 1/2 AND 1 INCH ACROSS THE FALL BRANCH AREA. MAINLY GRASSY SURFACES. |
| Jan 8, 5:12 AM EST | SNOW 0.5 | 5 Ne Rogersville, TN | SNOW ACCUMULATIONS UP TO 1/2 INCH ACROSS HAWKINS COUNTY. |
| Jan 8, 5:33 AM EST | SNOW 1.5 | 2 Sw Abingdon, VA | SNOW ACCUMULATIONS OF 1 TO 1 1/2 INCHES. SNOW COVERED ROADWAYS. |
| Jan 8, 6:00 AM EST | SNOW 0.5 | 3 Sw Gatlinburg, TN | CO-OP OBSERVER STATION GTLT1 GATLINBURG 2 SW. |
| Jan 8, 6:07 AM EST | SNOW 0.5 | 6 N Rogersville, TN | |
| Jan 8, 6:10 AM EST | SNOW 1.5 | 1 Nnw Mountain City, TN | |
| Jan 8, 6:30 AM EST | SNOW 1 | 3 Ene Morristown, TN | |
| Jan 8, 6:40 AM EST | SNOW 1.5 | 1 Nnw Abingdon, VA | |
| Jan 8, 6:47 AM EST | SNOW 0.5 | 2 W Greeneville, TN | |
| Jan 8, 6:51 AM EST | SNOW 0.1 | 1 Nw Maryville, TN | |
| Jan 8, 6:52 AM EST | SNOW 1 | Surgoinsville, TN | |
| Jan 8, 7:00 AM EST | SNOW 0.3 | 1 Wsw Alpha, TN | CO-OP OBSERVER STATION MRX WFO MORRISTOWN. |
| Jan 8, 7:00 AM EST | SNOW 0.7 | Tri-City Airport, TN | |
| Jan 8, 7:00 AM EST | SNOW 1.5 | 1 Sse Colonial Heights, TN | COCORAHS STATION TN-SL-24 COLONIAL HEIGHTS 0.6 SSE. |
| Jan 8, 7:00 AM EST | SNOW 1.7 | 1 S Gray, TN | COCORAHS STATION TN-WS-16 GRAY 1.3 S. |
| Jan 8, 7:00 AM EST | SNOW 7 | 6 Sse Gatlinburg, TN | CO-OP OBSERVER STATION MTLT1 GATLINBURG 5 SE. |
| Jan 8, 7:01 AM EST | SNOW 2 | 1 Ne Fall Branch, TN | |
| Jan 8, 7:11 AM EST | SNOW 4 | 3 Ne Abingdon, VA | |
| Jan 8, 7:14 AM EST | SNOW 1 | 2 E Morristown, TN | SNOW ACCUMULATIONS OF 1/2 TO 1 INCH NEAR WALTERS STATE COMMUNITY COLLEGE. |
| Jan 8, 7:17 AM EST | SNOW 1.3 | 1 N Kingsport, TN | |
| Jan 8, 7:19 AM EST | SNOW 5.5 | 5 S Gatlinburg, TN | NEWFOUND GAP CO-OP SITE. |
| Jan 8, 7:30 AM EST | SNOW 2 | 3 W Bloomingdale, TN | |
| Jan 8, 7:37 AM EST | SNOW 0.9 | Surgoinsville, TN | |
| Jan 8, 7:37 AM EST | SNOW 3 | 2 Se Sullivan Gardens, TN | HEAVY WET SNOW. |
| Jan 8, 7:41 AM EST | SNOW 2 | 3 Wnw Roan Mountain, TN | |
| Jan 8, 7:55 AM EST | SNOW 2 | 5 S Rocky Fork, TN | I-26 AT SAMS GAP. |
| Jan 8, 8:00 AM EST | SNOW 0.1 | 3 Ne Marble, NC | |
| Jan 8, 8:00 AM EST | SNOW 0.3 | 1 W Leesburg, TN | |
| Jan 8, 8:00 AM EST | SNOW 2 | 4 Sw Roan Mountain, TN | |
| Jan 8, 8:15 AM EST | SNOW 2 | 2 Wnw Morristown, TN | FROM TOP OF CROCKETT RIDGE SUBDIVISION AT ABOUT 1900 FEET. |
| Jan 8, 8:22 AM EST | SNOW 0.2 | 3 Ne Happy Valley, TN | |
| Jan 8, 8:41 AM EST | SNOW 2 | 1 Nw Mount Carmel, TN | |
| Jan 8, 9:13 AM EST | SNOW 6 | 2 W Emory-Meadow View, VA | |
| Jan 8, 9:16 AM EST | SNOW 0.5 | 3 Ne Morristown, TN | |
| Jan 8, 9:20 AM EST | SNOW 1 | 1 N Whitesburg, TN | |
| Jan 8, 9:29 AM EST | SNOW 2.3 | 3 Sw Okolona, TN | |
| Jan 8, 10:00 AM EST | SNOW 0.1 | 1 E Seymour, TN | |
| Jan 8, 10:07 AM EST | SNOW 0.5 | 1 Ssw Bristol Va, VA | AT WCYB IN DOWNTOWN BRISTOL. |
| Jan 8, 10:07 AM EST | SNOW 1.5 | 2 Nw Bristol Va, VA | AT 1920 FOOT ELEVATION. |
| Jan 8, 11:16 AM EST | SNOW 2 | 6 Ne Bristol Va, VA | |
| Jan 8, 11:32 AM EST | SNOW 3 | Mount Carmel, TN | |
| Jan 8, 12:53 PM EST | SNOW 2 | 1 E Kingsport, TN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 9.7 hours before the alert went out and 284 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
- 1310 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- -42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
895 WWUS44 KMRX 070940 WSWMRX URGENT - WINTER WEATHER MESSAGE National Weather Service Morristown TN 440 AM EST Thu Jan 7 2021 TNZ018-041-043-045-047-072-074-072100- /O.UPG.KMRX.WS.A.0001.210108T0000Z-210109T0000Z/ /O.NEW.KMRX.WS.W.0001.210108T0000Z-210109T0000Z/ Johnson-Cocke Smoky Mountains-Southeast Greene-Unicoi- Southeast Carter-Blount Smoky Mountains-Sevier Smoky Mountains- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, and Gatlinburg 440 AM EST Thu Jan 7 2021 ...WINTER STORM WARNING IN EFFECT FROM 7 PM THIS EVENING TO 7 PM EST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations of 3 to 8 inches possible over the higher elevations. 1 to 3 inches will be possible over the lower elevations. * WHERE...Portions of east Tennessee. * WHEN...From 7 PM this evening to 7 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/mrx. && $$ NCZ060-061-TNZ087-102-072100- /O.CON.KMRX.WS.A.0001.210108T0000Z-210109T0000Z/ Cherokee-Clay-Southeast Monroe-East Polk- Including the cities of Andrews, Marble, Topton, Hiawasse Dam, Murphy, Unaka, Violet, Shooting Creek, Brasstown, Hayesville, Tusquitee, Citico, Coker Creek, Big Frog Mountain, Ducktown, and Turtletown 440 AM EST Thu Jan 7 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH FRIDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations of up to 3 to 6 inches possible, mainly across the higher elevations. Lower elevations may see up to an inch or two as well. * WHERE...Portions of southeast Tennessee and southwest North Carolina. * WHEN...From Thursday evening through Friday evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is a potential for significant snow, sleet, or ice accumulations that may impact travel. Continue to monitor the latest forecasts. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/mrx. && $$
7 follow-up statements
872 WWUS44 KMRX 072051 WSWMRX URGENT - WINTER WEATHER MESSAGE National Weather Service Morristown TN 351 PM EST Thu Jan 7 2021 TNZ016-017-039-040-042-044-046-070-071-073-VAZ008-080500- /O.EXB.KMRX.WS.W.0001.210108T0600Z-210109T0000Z/ Hawkins-Sullivan-Hamblen-Northwest Cocke-Northwest Greene- Washington-Northwest Carter-Jefferson-Northwest Blount- North Sevier- Including the cities of Mooresburg, Kingsport, Bristol TN, South Holston Dam, Alpha, Morristown, Russellville, Bybee, Newport, Greeneville, Johnson City, Elizabethton, Jefferson City, Strawberry Plains, Chestnut Hill, Dandridge, White Pine, Happy Valley, Maryville, Alcoa, Harrisburg, Kodak, McMahan, Sevierville, Seymour, Pigeon Forge, Benhams, Bristol VA, and Abingdon 351 PM EST Thu Jan 7 2021 ...WINTER STORM WARNING IN EFFECT FROM 1 AM TO 7 PM EST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations of 2 to 5 inches, with increased amounts possible in the higher elevations. * WHERE...Portions of east Tennessee and southwest Virginia. * WHEN...From 1 AM to 7 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/mrx. && $$ NCZ060-061-TNZ087-102-080500- /O.UPG.KMRX.WS.A.0001.210108T0000Z-210109T0000Z/ /O.EXA.KMRX.WS.W.0001.210108T0000Z-210109T0000Z/ Cherokee-Clay-Southeast Monroe-East Polk- Including the cities of Andrews, Marble, Topton, Hiawasse Dam, Murphy, Unaka, Violet, Shooting Creek, Brasstown, Hayesville, Tusquitee, Citico, Coker Creek, Big Frog Mountain, Ducktown, and Turtletown 351 PM EST Thu Jan 7 2021 ...WINTER STORM WARNING IN EFFECT FROM 7 PM THIS EVENING TO 7 PM EST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations of up to 4 inches, with the heaviest snow expected in the higher elevations. * WHERE...In Tennessee, Southeast Monroe and East Polk Counties. In North Carolina, Cherokee and Clay Counties. * WHEN...From 7 PM this evening to 7 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/mrx. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ018-041-043-045-047-072-074-080500- /O.CON.KMRX.WS.W.0001.210108T0000Z-210109T0000Z/ Johnson-Cocke Smoky Mountains-Southeast Greene-Unicoi- Southeast Carter-Blount Smoky Mountains-Sevier Smoky Mountains- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, and Gatlinburg 351 PM EST Thu Jan 7 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 PM EST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations of 3 to 8 inches possible over the higher elevations. 1 to 3 inches will be possible over the lower elevations. * WHERE...Portions of east Tennessee. * WHEN...From 7 PM this evening to 7 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/mrx. && $$ TNZ012>015-035>038-067>069-081>086-101-VAZ001-002-005-006-080500- /O.NEW.KMRX.WW.Y.0002.210108T0600Z-210109T0000Z/ Scott-Campbell-Claiborne-Hancock-Morgan-Anderson-Union-Grainger- Roane-Loudon-Knox-Sequatchie-Bledsoe-Rhea-Meigs-McMinn- Northwest Monroe-West Polk-Lee-Wise-Russell- Including the cities of 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, Kyles Ford, Pine Orchard, High Point, Petros, Oak Ridge, Clinton, Maynardville, Norris Lake, Paulette, Rose Hill, Sharps Chapel, Luttrell, Bean Station, Harriman, Eagle Furnace, Rockwood, Bradbury, Fairview, Kingston, Oliver Springs, Lenoir City, Loudon, Bearden, Knoxville, Lake Forest, Cagle, Dunlap, Cartwright, Lone Oak, Old Cumberland, Palio, Melvine, Mount Crest, Pikeville, Brayton, Dayton, Evensville, Old Washington, Grandview, Spring City, Big Spring, Athens, Clear Water, Dentville, Etowah, Sweetwater, Madisonville, Bullet Creek, Conasauga, Archville, Benton, Parksville, Reliance, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, Hiltons, Hansonville, Lebanon, Dye, Castlewood, Honaker, and Rosedale 351 PM EST Thu Jan 7 2021 /251 PM CST Thu Jan 7 2021/ ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM EST /MIDNIGHT CST/ TO 7 PM EST /6 PM CST/ FRIDAY... * WHAT...Snow expected. Total snow accumulations of up to 3 inches. * WHERE...Portions of east Tennessee and southwest Virginia. * WHEN...From 1 AM EST /midnight CST/ to 7 PM EST /6 PM CST/ Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/mrx. && $$
582 WWUS44 KMRX 080118 WSWMRX URGENT - WINTER WEATHER MESSAGE National Weather Service Morristown TN 818 PM EST Thu Jan 7 2021 NCZ060-061-TNZ018-041-043-045-047-072-074-087-102-081700- /O.CON.KMRX.WS.W.0001.000000T0000Z-210109T0000Z/ Cherokee-Clay-Johnson-Cocke Smoky Mountains-Southeast Greene- Unicoi-Southeast Carter-Blount Smoky Mountains- Sevier Smoky Mountains-Southeast Monroe-East Polk- Including the cities of Andrews, Marble, Topton, Hiawasse Dam, Murphy, Unaka, Violet, Shooting Creek, Brasstown, Hayesville, Tusquitee, Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, Coker Creek, Big Frog Mountain, Ducktown, and Turtletown 818 PM EST Thu Jan 7 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations of 3 to 8 inches possible over the higher elevations. 1 to 3 inches will be possible over the lower elevations. * WHERE...Portions of east Tennessee. * WHEN...From 7 PM this evening to 7 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ016-017-039-040-042-044-046-070-071-073-VAZ008-081700- /O.CON.KMRX.WS.W.0001.210108T0600Z-210109T0000Z/ Hawkins-Sullivan-Hamblen-Northwest Cocke-Northwest Greene- Washington-Northwest Carter-Jefferson-Northwest Blount- North Sevier- Including the cities of Mooresburg, Kingsport, Bristol TN, South Holston Dam, Alpha, Morristown, Russellville, Bybee, Newport, Greeneville, Johnson City, Elizabethton, Jefferson City, Strawberry Plains, Chestnut Hill, Dandridge, White Pine, Happy Valley, Maryville, Alcoa, Harrisburg, Kodak, McMahan, Sevierville, Seymour, Pigeon Forge, Benhams, Bristol VA, and Abingdon 818 PM EST Thu Jan 7 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 AM TO 7 PM EST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations of 2 to 5 inches, with increased amounts possible in the higher elevations. * WHERE...Portions of east Tennessee and southwest Virginia. * WHEN...From 1 AM to 7 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ098-081700- /O.EXB.KMRX.WW.Y.0002.210108T0300Z-210108T1700Z/ Marion- Including the cities of South Pittsburg, Haletown (Guild), Jasper, Martin Springs, Whitwell, Powells Crossroads, and Monteagle 718 PM CST Thu Jan 7 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM CST FRIDAY... * WHAT...Snow expected. Total snow accumulations of up to 2 inches. * WHERE...Marion County. * WHEN...Until 11 AM CST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Snowfall accumulations will be mainly limited to mainly outside of the Sequatchie Valley. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ081-082-081700- /O.EXT.KMRX.WW.Y.0002.210108T0300Z-210108T1700Z/ Sequatchie-Bledsoe- Including the cities of Cagle, Dunlap, Cartwright, Lone Oak, Old Cumberland, Palio, Melvine, Mount Crest, Pikeville, and Brayton 718 PM CST Thu Jan 7 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM CST FRIDAY... * WHAT...Snow expected. Total snow accumulations of up to 2 inches. * WHERE...Portions of east Tennessee and southwest Virginia. * WHEN...Until 11 AM CST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Snowfall accumulations will be mainly limited to mainly outside of the Sequatchie Valley. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ012>015-035>038-067>069-083>086-101-VAZ001-002-005-006-081700- /O.CON.KMRX.WW.Y.0002.210108T0600Z-210109T0000Z/ Scott-Campbell-Claiborne-Hancock-Morgan-Anderson-Union-Grainger- Roane-Loudon-Knox-Rhea-Meigs-McMinn-Northwest Monroe-West Polk- Lee-Wise-Russell- Including the cities of 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, Kyles Ford, Pine Orchard, High Point, Petros, Oak Ridge, Clinton, Maynardville, Norris Lake, Paulette, Rose Hill, Sharps Chapel, Luttrell, Bean Station, Harriman, Eagle Furnace, Rockwood, Bradbury, Fairview, Kingston, Oliver Springs, Lenoir City, Loudon, Bearden, Knoxville, Lake Forest, Dayton, Evensville, Old Washington, Grandview, Spring City, Big Spring, Athens, Clear Water, Dentville, Etowah, Sweetwater, Madisonville, Bullet Creek, Conasauga, Archville, Benton, Parksville, Reliance, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, Hiltons, Hansonville, Lebanon, Dye, Castlewood, Honaker, and Rosedale 818 PM EST Thu Jan 7 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM TO 7 PM EST FRIDAY... * WHAT...Snow expected. Total snow accumulations of up to 3 inches. * WHERE...Portions of east Tennessee and southwest Virginia. * WHEN...From 1 AM EST /midnight CST/ to 7 PM EST /6 PM CST/ Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
827 WWUS44 KMRX 080909 WSWMRX URGENT - WINTER WEATHER MESSAGE National Weather Service Morristown TN 409 AM EST Fri Jan 8 2021 ...Winter Weather Underway Across The Tennessee Valley and Southern Appalachians... NCZ060-061-TNZ018-041-043-045-047-072-074-087-102-081700- /O.CON.KMRX.WS.W.0001.000000T0000Z-210109T0000Z/ Cherokee-Clay-Johnson-Cocke Smoky Mountains-Southeast Greene- Unicoi-Southeast Carter-Blount Smoky Mountains- Sevier Smoky Mountains-Southeast Monroe-East Polk- Including the cities of Andrews, Marble, Topton, Hiawasse Dam, Murphy, Unaka, Violet, Shooting Creek, Brasstown, Hayesville, Tusquitee, Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, Coker Creek, Big Frog Mountain, Ducktown, and Turtletown 409 AM EST Fri Jan 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Heavy snow. Total snow accumulations of 4 to 8 inches possible over the higher elevations. 2 to 4 inches will be possible over the lower elevations. * WHERE...Portions of the East Tennessee mountains. * WHEN...Now through 7 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ016-017-039-040-042-044-046-070-071-073-VAZ008-081700- /O.CON.KMRX.WS.W.0001.000000T0000Z-210109T0000Z/ Hawkins-Sullivan-Hamblen-Northwest Cocke-Northwest Greene- Washington-Northwest Carter-Jefferson-Northwest Blount- North Sevier- Including the cities of Mooresburg, Kingsport, Bristol TN, South Holston Dam, Alpha, Morristown, Russellville, Bybee, Newport, Greeneville, Johnson City, Elizabethton, Jefferson City, Strawberry Plains, Chestnut Hill, Dandridge, White Pine, Happy Valley, Maryville, Alcoa, Harrisburg, Kodak, McMahan, Sevierville, Seymour, Pigeon Forge, Benhams, Bristol VA, and Abingdon 409 AM EST Fri Jan 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Heavy snow. Total snow accumulations of 2 to 4 inches, with increased amounts possible in the higher elevations. * WHERE...Portions of east Tennessee and southwest Virginia. * WHEN...Now through 7 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ012>015-035>038-067>069-083>086-101-VAZ001-002-005-006-081700- /O.CON.KMRX.WW.Y.0002.000000T0000Z-210109T0000Z/ Scott-Campbell-Claiborne-Hancock-Morgan-Anderson-Union-Grainger- Roane-Loudon-Knox-Rhea-Meigs-McMinn-Northwest Monroe-West Polk- Lee-Wise-Russell- Including the cities of Big South Fork National, Oneida, Smokey Junction, Elgin, Huntsville, Norma, Slick Rock, Fincastle, La Follette, Elk Valley, Jellico, White Oak, Caryville, Royal Blue, Lone Mountain, Sandlick, Springdale, Arthur, Harrogate-Shawanee, Clairfield, Howard Quarter, Evanston, Sneedville, Kyles Ford, Pine Orchard, High Point, Petros, Oak Ridge, Clinton, Maynardville, Norris Lake, Paulette, Rose Hill, Sharps Chapel, Luttrell, Bean Station, Harriman, Eagle Furnace, Rockwood, Bradbury, Fairview, Kingston, Oliver Springs, Lenoir City, Loudon, Bearden, Knoxville, Lake Forest, Dayton, Evensville, Old Washington, Grandview, Spring City, Big Spring, Athens, Clear Water, Dentville, Etowah, Sweetwater, Madisonville, Bullet Creek, Conasauga, Archville, Benton, Parksville, Reliance, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, Hiltons, Hansonville, Lebanon, Dye, Castlewood, Honaker, and Rosedale 409 AM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Snow. Snow accumulations of up to 2 inches. * WHERE...Portions of east Tennessee and southwest Virginia. * WHEN...Now to 7 PM EST /6 PM CST/ Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ081-082-098-081700- /O.CON.KMRX.WW.Y.0002.000000T0000Z-210108T1700Z/ Sequatchie-Bledsoe-Marion- Including the cities of Cagle, Dunlap, Cartwright, Lone Oak, Old Cumberland, Palio, Melvine, Mount Crest, Pikeville, Brayton, South Pittsburg, Haletown (Guild), Jasper, Martin Springs, Whitwell, Powells Crossroads, and Monteagle 309 AM CST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM CST THIS MORNING... * WHAT...Snow. Additional snow accumulations of up to 1 inch. * WHERE...The southern Cumberland Plateau. * WHEN...Until 11 AM CST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
499 WWUS44 KMRX 081225 WSWMRX URGENT - WINTER WEATHER MESSAGE National Weather Service Morristown TN 725 AM EST Fri Jan 8 2021 NCZ060-061-TNZ039-040-070-071-073-102-082100- /O.CAN.KMRX.WS.W.0001.000000T0000Z-210109T0000Z/ /O.EXB.KMRX.WW.Y.0002.000000T0000Z-210108T2100Z/ Cherokee-Clay-Hamblen-Northwest Cocke-Jefferson-Northwest Blount- North Sevier-East Polk- Including the cities of Andrews, Marble, Topton, Hiawasse Dam, Murphy, Unaka, Violet, Shooting Creek, Brasstown, Hayesville, Tusquitee, Alpha, Morristown, Russellville, Bybee, Newport, Jefferson City, Strawberry Plains, Chestnut Hill, Dandridge, White Pine, Maryville, Alcoa, Harrisburg, Kodak, McMahan, Sevierville, Seymour, Pigeon Forge, Big Frog Mountain, Ducktown, and Turtletown 725 AM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Wet snow. Additional snow accumulations of up to one half inch. * WHERE...Portions of east Tennessee and southwest North Carolina. * WHEN...Until 4 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ016-017-042-044-046-VAZ008-082100- /O.EXT.KMRX.WS.W.0001.000000T0000Z-210108T2100Z/ Hawkins-Sullivan-Northwest Greene-Washington-Northwest Carter- Including the cities of Mooresburg, Kingsport, Bristol TN, South Holston Dam, Greeneville, Johnson City, Elizabethton, Benhams, Bristol VA, and Abingdon 725 AM EST Fri Jan 8 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... * WHAT...Heavy wet snow. Additional snow accumulations of up to one inch. * WHERE...Portions of east Tennessee and southwest Virginia. * WHEN...Until 4 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ018-041-043-045-047-072-074-087-082100- /O.CON.KMRX.WS.W.0001.000000T0000Z-210109T0000Z/ Johnson-Cocke Smoky Mountains-Southeast Greene-Unicoi- Southeast Carter-Blount Smoky Mountains-Sevier Smoky Mountains- Southeast Monroe- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 725 AM EST Fri Jan 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Heavy wet snow. Additional snow accumulations of up to 3 inches, especially at the higher elevations. * WHERE...Portions of the East Tennessee mountains. * WHEN...Until 7 PM EST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ012>015-035>038-067>069-083>086-101-VAZ001-002-005-006-082100- /O.EXT.KMRX.WW.Y.0002.000000T0000Z-210108T2100Z/ Scott-Campbell-Claiborne-Hancock-Morgan-Anderson-Union-Grainger- Roane-Loudon-Knox-Rhea-Meigs-McMinn-Northwest Monroe-West Polk- Lee-Wise-Russell- Including the cities of 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, Kyles Ford, Pine Orchard, High Point, Petros, Oak Ridge, Clinton, Maynardville, Norris Lake, Paulette, Rose Hill, Sharps Chapel, Luttrell, Bean Station, Harriman, Eagle Furnace, Rockwood, Bradbury, Fairview, Kingston, Oliver Springs, Lenoir City, Loudon, Bearden, Knoxville, Lake Forest, Dayton, Evensville, Old Washington, Grandview, Spring City, Big Spring, Athens, Clear Water, Dentville, Etowah, Sweetwater, Madisonville, Bullet Creek, Conasauga, Archville, Benton, Parksville, Reliance, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, Hiltons, Hansonville, Lebanon, Dye, Castlewood, Honaker, and Rosedale 725 AM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... * WHAT...Wet snow. Additional snow accumulations of up to one half inch. * WHERE...Portions of east Tennessee and southwest Virginia. * WHEN...Until 4 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ TNZ081-082-098-081500- /O.EXT.KMRX.WW.Y.0002.000000T0000Z-210108T1500Z/ Sequatchie-Bledsoe-Marion- Including the cities of Cagle, Dunlap, Cartwright, Lone Oak, Old Cumberland, Palio, Melvine, Mount Crest, Pikeville, Brayton, South Pittsburg, Haletown (Guild), Jasper, Martin Springs, Whitwell, Powells Crossroads, and Monteagle 625 AM CST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Wet snow. Additional snow accumulations of up to one half inch. * WHERE...Marion, Bledsoe and Sequatchie Counties. * WHEN...Until 9 AM CST this morning. * IMPACTS...The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
869 WWUS44 KMRX 081526 WSWMRX URGENT - WINTER WEATHER MESSAGE National Weather Service Morristown TN 1026 AM EST Fri Jan 8 2021 TNZ016-017-042-044-046-081630- /O.CAN.KMRX.WS.W.0001.000000T0000Z-210108T2100Z/ Hawkins-Sullivan-Northwest Greene-Washington-Northwest Carter- 1026 AM EST Fri Jan 8 2021 ...WINTER STORM WARNING IS CANCELLED... Rain and snow showers will continue through the day, but little to no additional snow accumulation is expected. $$ NCZ060-061-TNZ012>015-035>040-067>071-073-083>086-101-102-081630- /O.CAN.KMRX.WW.Y.0002.000000T0000Z-210108T2100Z/ Cherokee-Clay-Scott-Campbell-Claiborne-Hancock-Morgan-Anderson- Union-Grainger-Hamblen-Northwest Cocke-Roane-Loudon-Knox- Jefferson-Northwest Blount-North Sevier-Rhea-Meigs-McMinn- Northwest Monroe-West Polk-East Polk- 1026 AM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Rain and snow showers will continue through the day, but little to no additional snow accumulation is expected. $$ TNZ081-082-098-081630- /O.EXP.KMRX.WW.Y.0002.000000T0000Z-210108T1500Z/ Sequatchie-Bledsoe-Marion- Including the cities of Cagle, Dunlap, Cartwright, Lone Oak, Old Cumberland, Palio, Melvine, Mount Crest, Pikeville, Brayton, South Pittsburg, Haletown (Guild), Jasper, Martin Springs, Whitwell, Powells Crossroads, and Monteagle 926 AM CST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY HAS EXPIRED... Rain and snow showers will continue through the day, but little to no additional snow accumulation is expected. $$ TNZ018-041-043-045-047-072-074-087-082330- /O.CON.KMRX.WS.W.0001.000000T0000Z-210109T0000Z/ Johnson-Cocke Smoky Mountains-Southeast Greene-Unicoi- Southeast Carter-Blount Smoky Mountains-Sevier Smoky Mountains- Southeast Monroe- Including the cities of Doeville, Mountain City, Neva, Shady Valley, Trade, Laurel Bloomery, Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 1026 AM EST Fri Jan 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Heavy wet snow. Additional snow accumulations of up to 3 inches, especially at the higher elevations. * WHERE...Portions of the East Tennessee mountains. * WHEN...Until 7 PM EST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ VAZ008-082100- /O.CON.KMRX.WS.W.0001.000000T0000Z-210108T2100Z/ Washington- Including the cities of Benhams, Bristol VA, and Abingdon 1026 AM EST Fri Jan 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... * WHAT...Heavy wet snow. Additional snow accumulations of up to one inch. * WHERE...Portions of southwest Virginia. * WHEN...Until 4 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ VAZ001-002-005-006-082100- /O.CON.KMRX.WW.Y.0002.000000T0000Z-210108T2100Z/ Lee-Wise-Scott-Russell- Including the cities of Rose Hill, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, Hiltons, Hansonville, Lebanon, Dye, Castlewood, Honaker, and Rosedale 1026 AM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... * WHAT...Wet snow. Additional snow accumulations of up to one half inch. * WHERE...Portions of southwest Virginia. * WHEN...Until 4 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
369 WWUS44 KMRX 081957 WSWMRX URGENT - WINTER WEATHER MESSAGE National Weather Service Morristown TN 257 PM EST Fri Jan 8 2021 TNZ018-041-043-045-047-072-074-087-090400- /O.EXT.KMRX.WS.W.0001.000000T0000Z-210109T0500Z/ 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 257 PM EST Fri Jan 8 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...Heavy wet snow. Additional snow accumulations of up to 4 inches, especially at the higher elevations. * WHERE...Portions of the East Tennessee mountains. * WHEN...Until midnight EST tonight. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ VAZ008-082100- /O.CON.KMRX.WS.W.0001.000000T0000Z-210108T2100Z/ Washington- Including the cities of Benhams, Bristol VA, and Abingdon 257 PM EST Fri Jan 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... * WHAT...Heavy wet snow. Additional snow accumulations of up to one inch. * WHERE...Portions of southwest Virginia. * WHEN...Until 4 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ VAZ001-002-005-006-082100- /O.CON.KMRX.WW.Y.0002.000000T0000Z-210108T2100Z/ Lee-Wise-Scott-Russell- Including the cities of Rose Hill, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, Hiltons, Hansonville, Lebanon, Dye, Castlewood, Honaker, and Rosedale 257 PM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... * WHAT...Wet snow. Additional snow accumulations of up to one half inch. * WHERE...Portions of southwest Virginia. * WHEN...Until 4 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
023 WWUS44 KMRX 090107 WSWMRX URGENT - WINTER WEATHER MESSAGE National Weather Service Morristown TN 807 PM EST Fri Jan 8 2021 TNZ018-041-043-045-047-072-074-087-090215- /O.CAN.KMRX.WS.W.0001.000000T0000Z-210109T0500Z/ Johnson-Cocke Smoky Mountains-Southeast Greene-Unicoi- Southeast Carter-Blount Smoky Mountains-Sevier Smoky Mountains- Southeast Monroe- 807 PM EST Fri Jan 8 2021 ...WINTER STORM WARNING IS CANCELLED... Accumulating snowfall is tapering off over the higher elevations this evening. Slick travel and black ice are still possible through the night and into the morning. Use extra caution when traveling as black ice can be even more difficult to see at night. $$
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Morristown, TN wrote its last area forecast discussion before this winter storm warning went out at Jan 7, 4:39 AM EST, 1 minute earlier.
Area forecast discussion, Jan 7, 4:39 AM EST, 1 minute before
AREA FORECAST DISCUSSION
National Weather Service Morristown TN
439 AM EST Thu Jan 7 2021
.SHORT TERM...(Today through Friday)...
Unfortunately model agreement and consistency continues to be very
poor given that the potential snow will begin tonight, and this
leads to low forecast confidence and the potential for significant
changes to the forecast as the event draws nearer. Models
generally agree that a closed H5 low will track across the region
with a surface low tracking by to our south, although the exact
track varies from run to run and between models. Precipitation
will begin moving into southern areas later today, then spread
north and northeast before diminishing from west to east on
Friday. Thermal profiles suggest that much of the precipitation
will be rain at least early on in the lower elevations, although
the freezing levels and strength of a warm nose aloft again vary
significantly in the models. Also complicating the forecast is the
existence of low level downslope flow coming across the mountains
for a significant portion of the event, but indications are still
unclear if it will be strong enough to have much effect on
thermal profiles and precip amounts. The other complicating factor
is the steep lapse rates under the upper low. Cannot rule out
some very weak elevated instability at least briefly, which would
certainly affect precipitation amounts.
Confidence has risen that we will reach warning criteria for snow
in the higher elevations of the mountains from Blount county north
to Johnson, so will upgrade the watch to a warning for these
areas. Further south will keep the watch for now given lower
confidence. Areas such as the Plateau and SW VA look to have a
better chance for much of the precipitation to be snow, but right
now precipitation amounts look lower there with some models
suggesting little precipitation at all. We may end up needing a
winter weather advisory for portions of the valley, Plateau, and
SW VA, but forecast confidence does not warrant an advisory yet so
plan to issue an SPS for now and let the day shift take one more
look at it before the precipitation begins.
LW
.LONG TERM...(Friday night through Wednesday night)...
By Friday night, the area will be on the tail-end of the upper level
low as its lifts northeast. Moisture will likely stick around across
the high terrain with areas of flurries or light snow showers. Any
additional accumulations will be very light. Much cooler
temperatures are expected with highs on Saturday remaining in the
30's to low 40's with extensive cloud cover. Dry weather will
continue through the remainder of the weekend as high pressure at
the surface moves into the Ohio Valley. Temperatures will remain
below normal.
Late Sunday night...a southern stream disturbance digs into the
southern plains and will lift northeast on Monday. Precipitation
will develop to the south and lift north Monday afternoon. There is
still uncertainty with this system regarding the track of the
surface low, any potential deformation zone, and the thermal
profile. At this point, the forecast will feature chance PoPs with
rain or snow. Temperatures below normal will persist through
Tuesday underneath cyclonic flow aloft.
Diegan
&&
.AVIATION...
06Z TAF DISCUSSION.
MVFR cigs at TRI to start should be short-lived. Once these have
moved out, will see an increase in high clouds that will lower by
later in the period, with some rain moving into at least CHA late
in the period and perhaps as far north as TYS. VFR conditions can
be expected at TYS entire period and TRI once the early lower
clouds exit. At CHA conditions will be VFR before lowering as the
rain moves in, with IFR likely by the very end of the period with
low cigs and rain/fog. Winds will generally be from the north and
northeast and less than 10 kts.
&&
.PRELIMINARY POINT TEMPS/POPS...
Chattanooga Airport, TN 47 36 41 30 43 / 50 90 70 10 0
Knoxville McGhee Tyson Airport, TN 45 33 39 28 39 / 10 80 80 10 0
Oak Ridge, TN 45 33 39 28 41 / 10 80 70 10 0
Tri Cities Airport, TN 47 32 39 27 38 / 0 60 70 20 0
&&
.MRX WATCHES/WARNINGS/ADVISORIES...
NC...Winter Storm Watch from this evening through Friday evening for
Cherokee-Clay.
TN...Winter Storm Warning from 7 PM this evening to 7 PM EST Friday
for Blount Smoky Mountains-Cocke Smoky Mountains-Johnson-
Sevier Smoky Mountains-Southeast Carter-Southeast Greene-
Unicoi.
Winter Storm Watch from this evening through Friday evening for
East Polk-Southeast Monroe.
VA...NONE.
&&Hazardous weather outlook, Jan 7, 4:19 AM EST, 21 minutes before
Hazardous Weather Outlook National Weather Service Morristown TN 419 AM EST Thu Jan 7 2021 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-080930- Cherokee-Clay-Scott-Campbell-Claiborne-Hancock-Hawkins-Sullivan- Johnson-Morgan-Anderson-Union-Grainger-Hamblen-Northwest Cocke- Cocke Smoky Mountains-Northwest Greene-Southeast Greene- Washington-Unicoi-Northwest Carter-Southeast Carter-Roane-Loudon- Knox-Jefferson-Northwest Blount-Blount Smoky Mountains- North Sevier-Sevier Smoky Mountains-Sequatchie-Bledsoe-Rhea-Meigs- McMinn-Northwest Monroe-Southeast Monroe-Marion-Hamilton-Bradley- West Polk-East Polk-Lee-Wise-Russell- 419 AM EST Thu Jan 7 2021 /319 AM CST Thu Jan 7 2021/ This Hazardous Weather Outlook is for portions of southwest North Carolina...east Tennessee and southwest Virginia. .DAY ONE...Today and Tonight A strong low pressure system will begin to affect the area by tonight, with a mixed bag of precipitation. Higher confidence of accumulating snowfall exists across the far East Tennessee mountains and the mountains of southwest North Carolina, with heavy amounts expected over the higher elevations. Lower confidence exists for light snow accumulations across the Cumberland Plateau and valley locations. Uncertainty is high with this system, but there is the potential for impacts across the area. Continue to monitor the latest forecasts. .DAYS TWO THROUGH SEVEN...Friday through Wednesday The storm system will continue to affect the area into Friday with some rain and snow. Higher confidence of accumulating snowfall exists across the far East Tennessee mountains and the mountains of southwest North Carolina, with heavy amounts expected over the higher elevations. Lower confidence exists for light snow accumulations across the Cumberland Plateau and valley locations. .SPOTTER INFORMATION STATEMENT... Spotter reports for snowfall amounts may be needed on Friday.
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 3:51 PM EST | Winter Weather Advisory | MRX | Cherokee, Clay | 24 hr |
Nearby
Winter Storm Warnings in Tennessee, 2021Winter Storm Warnings in North Carolina, 2021Winter Storm Warnings in Virginia, 2021Every winter storm 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.