Alert archive / North Carolina / Winter Storm Warnings in 2020

Winter Storm Warning 3, NWS Greenville-Spartanburg, SC

November 30, 20207 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this winter storm warning at Nov 30, 2020, 3:55 AM EST for 7 counties in North Carolina. It took effect at Nov 30, 2020, 7:00 AM EST. It was in force for 29 hr. 10 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
Nov 30, 2020, 3:55 AM EST (08:55 UTC)
In effect from
Nov 30, 2020, 7:00 AM EST
Expired
Dec 1, 2020, 12:00 PM EST
In force
29 hr
Issued by
NWS Greenville-Spartanburg, SC

Counties Avery County, NC, Graham County, NC, Haywood County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Yancey County, NC

The radar

The Knoxville radar (KMRX), 73 km from the middle of the area, began a volume at 08:56 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

TimeReportWhereRemark
Nov 30, 9:35 PM ESTSNOW 1Banner Elk, NC
Dec 1, 12:03 AM ESTSNOW 3.53 Nne Faust, NCWOLF LAUREL AREA
Dec 1, 7:00 AM ESTSNOW 22 Nw Waynesville, NCREPORT FROM NEAR WAYNESVILLE OF 2 INCHES.
Dec 1, 7:00 AM ESTSNOW 3.813 Nnw Marshall, NCELEVATION 1991. 3.8 INCHES.
Dec 1, 7:00 AM ESTSNOW 5.45 N Bakersville, NC5.4 INCHES NORTH OF BAKERSVILLE. ELEVATION 3832 FEET.
Dec 1, 7:00 AM ESTSNOW 61 Ese Buladean, NC6 INCHES AT BULADEAN.
Dec 1, 7:00 AM ESTSNOW 73 Nnw Faust, NCSAMS GAP HAD 7 INCHES. THIS IS AT THE TENNESSEE BORDER. SNOW GOT A BIT DEEPER ALONG THE APPALACHIAN TRAIL A SHORT WAYS FROM INTERSTATE 26 BUT NO MEASUREMENT.
Dec 1, 8:00 AM ESTSNOW 84 Nne Faust, NC
Dec 1, 8:00 AM ESTSNOW 84 Nne Faust, NC
Dec 1, 12:00 PM ESTSNOW 159 W Robbinsville, NCON THE CHEROHALA SKYWAY A TEAM MEASURED SNOW IN 2 LOCATIONS. AT THE FIRST LOCATION THE MEASUREMENT WAS 13 INCHES AND THE TEMPERATURE WAS 16 DEGREES. THE SECOND LOCATION WAS NEAR MILE MARKER NUMBER 5 WHERE THE MEASUREMENT WAS 15 INCHES.

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, 8.9 hours before the alert went out and 261 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2020-11-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2020-11-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1229 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
226 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

213 
WWUS42 KGSP 300855
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
355 AM EST Mon Nov 30 2020

...FIRST SIGNIFICANT SNOW OF THE SEASON NEAR THE TENNESSEE
BORDER... 

.In the wake of a seasonably strong cold front, moist
northwesterly winds will produce impactful snow accumulations in 
the mountains of North Carolina near the Tennessee border today 
into early Tuesday.

NCZ033-048>052-058-301700-
/O.UPG.KGSP.WS.A.0001.201130T1200Z-201201T1700Z/
/O.NEW.KGSP.WW.Y.0011.201130T1200Z-201201T1700Z/
/O.NEW.KGSP.WS.W.0003.201130T1200Z-201201T1700Z/
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Graham-
Including the cities of Ingalls, Banner Elk, Newland, Faust, 
Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, 
Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, 
Spruce Pine, Poplar, Alarka, Almond, Bryson City, Luada, Wesser, 
Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville,
and Stecoah
355 AM EST Mon Nov 30 2020

...WINTER STORM WARNING IN EFFECT FROM 7 AM THIS MORNING TO NOON
EST TUESDAY ABOVE 3500 FEET...
...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO
NOON EST TUESDAY BELOW 3500 FEET...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total
  snow accumulations of 4 to 8 inches, with isolated spots of 12
  inches possible in parts of the Smokies. Winds gusting as high
  as 45 mph. For the Winter Weather Advisory, snow expected. Total
  snow accumulations of 1 to 3 inches, with locally higher
  amounts. Winds gusting as high as 40 mph.

* WHERE...The North Carolina counties bordering the Tennessee
  border from Avery to Graham.

* WHEN...From 7 AM this morning to noon EST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Snowfall will begin in the higher
  elevations of the Smokies this morning then spread northeast
  across the higher elevations through the day. Snow levels will
  fall through the afternoon, reaching the valleys by evening. The
  highest snow amounts will be in the Smokies, followed by the
  Sam's Gap area, then the Roan Mountain region.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Slow down and use caution while traveling. 

Please report snow and ice accumulations by calling the National
Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a
message with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp. 

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/gsp. 

&&

$$
5 follow-up statements
983 
WWUS42 KGSP 301657
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
1157 AM EST Mon Nov 30 2020

...FIRST SIGNIFICANT SNOW OF THE SEASON NEAR THE TENNESSEE
BORDER...

.In the wake of a seasonably strong cold front, moist
northwesterly winds will produce impactful snow accumulations in
the mountains of North Carolina near the Tennessee border through 
early Tuesday.

NCZ033-048>052-058-302100-
/O.CON.KGSP.WS.W.0003.000000T0000Z-201201T1700Z/
/O.CON.KGSP.WW.Y.0011.000000T0000Z-201201T1700Z/
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Graham-
Including the cities of Ingalls, Banner Elk, Newland, Faust, 
Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, 
Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, 
Spruce Pine, Poplar, Alarka, Almond, Bryson City, Luada, Wesser, 
Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville,
and Stecoah
1157 AM EST Mon Nov 30 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TUESDAY
ABOVE 3500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
TUESDAY BELOW 3500 FEET...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow
  accumulations of 3 to 9 inches along the Tennessee border beyond
  what has already fallen, with isolated spots in the Smokies
  possibly seeing an additional 12 inches. Amounts generally will
  be less at lower elevations and in areas farther from the
  Tennessee border. Winds will gust as high as 45 mph on
  ridgetops. For the Winter Weather Advisory, snow. Additional
  snow accumulations of generally 1 to 3 inches will occur below
  3500 feet, but locally higher amounts are possible. Winds will
  gust as high as 35 mph in the lower elevations.

* WHERE...The North Carolina counties bordering the Tennessee
  border, from Avery to Graham.

* WHEN...Until noon EST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute.

* ADDITIONAL DETAILS...Snowfall has begun in the higher elevations
  and will spread northeast across the higher elevations into late
  afternoon. Snow levels will fall with time, reaching the 
  valleys by evening. The highest snow amounts will be in the 
  Smokies, followed by the Sam's Gap area, then the Roan Mountain 
  region.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Slow down and use caution while traveling. 

Please report snow and ice accumulations by calling the National
Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a
message with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp. 

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/gsp. 

&&

$$
Wimberley
861 
WWUS42 KGSP 301951
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
251 PM EST Mon Nov 30 2020

...FIRST SIGNIFICANT SNOW OF THE SEASON NEAR THE TENNESSEE
BORDER...

.In the wake of a seasonably strong cold front, moist
northwesterly winds will produce impactful snow accumulations in
the mountains of North Carolina near the Tennessee border and far
northeast Georgia through early Tuesday.

NCZ033-048>052-058-010400-
/O.CON.KGSP.WS.W.0003.000000T0000Z-201201T1700Z/
/O.CON.KGSP.WW.Y.0011.000000T0000Z-201201T1700Z/
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Graham-
Including the cities of Ingalls, Banner Elk, Newland, Faust, 
Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, 
Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, 
Spruce Pine, Poplar, Alarka, Almond, Bryson City, Luada, Wesser, 
Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville,
and Stecoah
251 PM EST Mon Nov 30 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TUESDAY
ABOVE 3500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
TUESDAY BELOW 3500 FEET...

* WHAT...For the Winter Storm Warning, heavy snow. Additional 
  snow accumulations of 3 to 9 inches along the Tennessee border 
  beyond what has already fallen, with isolated spots in the 
  Smokies possibly seeing an additional 12 inches. Amounts 
  generally will be less at lower elevations and in areas 
  farther from the Tennessee border. Winds will gust as high as 
  45 mph on ridgetops. For the Winter Weather Advisory, snow. 
  Additional snow accumulations of generally 1 to 3 inches will 
  occur below 3500 feet, but locally higher amounts are 
  possible. Winds will gust as high as 35 mph in the lower 
  elevations.

* WHERE...The North Carolina counties bordering the Tennessee 
  border, from Avery to Graham.

* WHEN...Until noon EST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute.

* ADDITIONAL DETAILS...Snowfall has begun in the higher 
  elevations and will spread northeast across the higher 
  elevations into late afternoon. Snow levels will fall with 
  time, reaching the valleys by evening. The highest snow 
  amounts will be in the Smokies, followed by the Sam's Gap 
  area, then the Roan Mountain region.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Slow down and use caution while traveling.

Please report snow and ice accumulations by calling the National
Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a
message with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp.

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/gsp.

&&

$$

GAZ010-NCZ062-010400-
/O.EXB.KGSP.WW.Y.0011.201130T2100Z-201201T1200Z/
Rabun-Macon-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Franklin, Rainbow Springs, Kyle, and Highlands
251 PM EST Mon Nov 30 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 AM EST TUESDAY...

* WHAT...Light snow expected. Total snow accumulations a dusting
  to two inches. Winds gusting as high as 35 mph.

* WHERE...In Georgia, Rabun County. In North Carolina, Macon
  County. Highest totals across western portions of each county, 
  especially above 3000 feet in elevation.

* WHEN...Until 7 AM EST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Please report snow and ice accumulations by calling the National
Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a
message with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp. 

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/gsp. 

&&

$$

RMM
759 
WWUS42 KGSP 010517
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
1217 AM EST Tue Dec 1 2020

...FIRST SIGNIFICANT SNOW OF THE SEASON NEAR THE TENNESSEE
BORDER...

.In the wake of a seasonably strong cold front, moist
northwesterly winds will produce impactful snow accumulations in
the mountains of North Carolina near the Tennessee border and far
northeast Georgia through the day.

NCZ033-048>052-058-011330-
/O.CON.KGSP.WS.W.0003.000000T0000Z-201201T1700Z/
/O.CON.KGSP.WW.Y.0011.000000T0000Z-201201T1700Z/
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Graham-
Including the cities of Ingalls, Banner Elk, Newland, Faust, 
Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, 
Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, 
Spruce Pine, Poplar, Alarka, Almond, Bryson City, Luada, Wesser, 
Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville,
and Stecoah
1217 AM EST Tue Dec 1 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY
ABOVE 3500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY
BELOW 3500 FEET...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow
  accumulations of up to 4 inches with locally higher amounts.
  Winds gusting as high as 35 mph. For the Winter Weather
  Advisory, snow. Additional snow accumulations of up to two
  inches with locally higher amounts.

* WHERE...The North Carolina counties bordering the Tennessee 
  border, from Avery to Graham.

* WHEN...Until noon EST today.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...The highest snow amounts will be in the 
  Smokies, followed by the Sam's Gap area, then the Roan Mountain 
  region..

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Slow down and use caution while traveling. 

Please report snow and ice accumulations by calling the National
Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a
message with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp. 

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/gsp. 

&&

$$

GAZ010-NCZ062-011200-
/O.CON.KGSP.WW.Y.0011.000000T0000Z-201201T1200Z/
Rabun-Macon-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Franklin, Rainbow Springs, Kyle, and Highlands
1217 AM EST Tue Dec 1 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...

* WHAT...Wet snow. Additional snow accumulations of up to one 
  inch.

* WHERE...In Georgia, Rabun County. In North Carolina, Macon 
  County. Highest totals across western portions of each county, 
  especially above 3000 feet in elevation.

* WHEN...Until 7 AM EST this morning.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Please report snow and ice accumulations by calling the National
Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a
message with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp. 

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/gsp. 

&&

$$
114 
WWUS42 KGSP 010911
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
411 AM EST Tue Dec 1 2020

...FIRST SIGNIFICANT SNOW OF THE SEASON NEAR THE TENNESSEE
BORDER...

.In the wake of a seasonably strong cold front, moist
northwesterly winds will produce impactful snow accumulations in
the mountains of North Carolina near the Tennessee border and far
northeast Georgia through this morning.

NCZ033-048>052-058-011700-
/O.CON.KGSP.WS.W.0003.000000T0000Z-201201T1700Z/
/O.CON.KGSP.WW.Y.0011.000000T0000Z-201201T1700Z/
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Graham-
Including the cities of Ingalls, Banner Elk, Newland, Faust, 
Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, 
Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, 
Spruce Pine, Poplar, Alarka, Almond, Bryson City, Luada, Wesser, 
Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville,
and Stecoah
411 AM EST Tue Dec 1 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY
ABOVE 3500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY
BELOW 3500 FEET...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow
  accumulations of one to two inches with locally higher amounts.
  For the Winter Weather Advisory, snow. Additional snow 
  accumulations of up to one inch.

* WHERE...The North Carolina counties bordering the Tennessee 
  border, from Avery to Graham.

* WHEN...Until noon EST today.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...The highest snow amounts will be in the 
  Smokies, followed by the Sam's Gap area, then the Roan 
  Mountain region.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Slow down and use caution while traveling. 

Please report snow and ice accumulations by calling the National
Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a
message with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp. 

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/gsp. 

&&

$$

GAZ010-NCZ062-011200-
/O.CON.KGSP.WW.Y.0011.000000T0000Z-201201T1200Z/
Rabun-Macon-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Franklin, Rainbow Springs, Kyle, and Highlands
411 AM EST Tue Dec 1 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...

* WHAT...Wet snow. Additional snow accumulations of up to one 
  inch.

* WHERE...In Georgia, Rabun County. In North Carolina, Macon 
  County. Highest totals across western portions of each county, 
  especially above 3000 feet in elevation.

* WHEN...Until 7 AM EST this morning.

* IMPACTS...The hazardous conditions could impact the morning
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Please report snow and ice accumulations by calling the National
Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a
message with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp. 

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/gsp. 

&&

$$

CAC
116 
WWUS42 KGSP 011152
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
652 AM EST Tue Dec 1 2020

...FIRST SIGNIFICANT SNOW OF THE SEASON NEAR THE TENNESSEE
BORDER...

.In the wake of a seasonably strong cold front, moist
northwesterly winds will produce impactful snow accumulations in
the mountains of North Carolina near the Tennessee border through
the morning.

GAZ010-NCZ062-011300-
/O.EXP.KGSP.WW.Y.0011.000000T0000Z-201201T1200Z/
Rabun-Macon-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Franklin, Rainbow Springs, Kyle, and Highlands
652 AM EST Tue Dec 1 2020

...WINTER WEATHER ADVISORY WILL EXPIRE AT 7 AM EST THIS MORNING...

Flurries or very light snow showers will taper off early this
morning. No significant additional accumulations are expected.

$$

NCZ033-048>052-058-011700-
/O.CON.KGSP.WS.W.0003.000000T0000Z-201201T1700Z/
/O.CON.KGSP.WW.Y.0011.000000T0000Z-201201T1700Z/
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Graham-
Including the cities of Ingalls, Banner Elk, Newland, Faust, 
Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, 
Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, 
Spruce Pine, Poplar, Alarka, Almond, Bryson City, Luada, Wesser, 
Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville,
and Stecoah
652 AM EST Tue Dec 1 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY
ABOVE 3500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY
BELOW 3500 FEET...

* WHAT...For the Winter Storm Warning, heavy snow. Additional 
  snow accumulations of one to two inches with locally higher 
  amounts. For the Winter Weather Advisory, snow. Additional 
  snow accumulations of up to one inch.

* WHERE...The North Carolina counties bordering the Tennessee 
  border, from Avery to Graham.

* WHEN...Until noon EST today.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...The highest snow amounts will be in the 
  Smokies, followed by the Sam's Gap area, then the Roan 
  Mountain region.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Slow down and use caution while traveling. 

Please report snow and ice accumulations by calling the National
Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a
message with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp. 

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/gsp. 

&&

$$

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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this winter storm warning went out at Nov 30, 3:37 AM EST, 18 minutes earlier.

Area forecast discussion, Nov 30, 3:37 AM EST, 18 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
337 AM EST Mon Nov 30 2020

.SYNOPSIS...
A strong low pressure system will cross the area this morning. In
the storm's wake, Snow is expected to develop in the mountains near
the North Carolina and Tennessee border through Tuesday. Another
strong low may cross the region at the end of the week.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 325 AM: Moderate to heavy showers are over the area with CAD
wedge in place. Surface obs showing the wedge boundary may be slowly
sliding north into the CWFA. There is a line of storms along the
cold front over GA that will move to near the area by daybreak.
Guidance shows some weak sbCAPE may move in coincident with these
storms. Will have to keep an eye on this line as it moves in early
this morning to see if it can tap any of the strong shear or
helicity. That said, chance of any severe storms remains very low.
muCAPE continues to increase, so a rumble of thunder or two remains
possible before the line clears. The expected uptick in rainfall
rates has developed with these showers, and will continue with the
line of storms. There will be an upward response in some creeks and
streams. A flood advisory or warning may still be needed before the
line clears.

The surface low and cold front will cross the area this morning
bringing an end the the showers outside of the mountains. Skies will
clear behind the front. That said, can't rule out some clouds
breaking containment and spreading across the foothills and
piedmont, especially downstream of any gap created convergence
zones. Some guidance even suggests and isolated rain or snow shower
could develop in these zones. Will leave any mention out for now.
Southerly winds will increase ahead of the front where the wedge
erodes. Westerly winds pick up behind the front and become gusty
across the area which continue at least through the evening and
maybe even overnight. Should be an early high near or above normal
with temps falling through the afternoon. Lows will be below normal.

For the mountains, the initial showers will end with the morning
passage of the cold front. Temps will fall much earlier, especially
across the higher elevations of the Smokies, then across all the
higher elevations. Valleys will remain relatively warm with nearly
steady or slowly falling temps until afternoon. Deep NW flow
moisture and good upslope flow, along with some weak instability and
upper divergence, will lead to a NW flow snow event for the TN
border counties. Expect snow to begin in the Smokies this morning
with snow moving up the spine of the Appalachians through the day.
Snow levels will drop to the valleys by afternoon. Given the amount
of moisture and forcing, will convert the watch to a high elevation
warning and low elevation advisory. Snowfall totals of 4 to 6 inches
will be common across the warning area with up to 8 inches near
Sam's Gap, over the Smokies, and even the high elevations of Graham
County. The lower elevations will average 2 inches but could see
isolated higher amounts. Will keep Buncombe out of any winter
products for now as most of the populated areas will see less than
an inch; however, the higher elevations along the parkway near the
Black Mountains will see accumulations. Very gusty winds develop
over the higher elevations with some higher elevation locations
seeing wind chill values around 0. Lows in the valleys will
generally bottom out around 20 degrees or higher.

&&

.SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/...
As of 200 AM Monday: Snow will be the topic of discussion to start
out the short term. NW-ly moisture advection gradually weaves out
starting at daybreak Tuesday along the NC-TN border and the spine of
the Blue Ridge. This will put an end to the snow in the mountains
by sunset at the very latest, but even just some shallow low-level
moisture will keep light snow going in the favorable NW upslope
locations along the northern tier through the afternoon. Expect snow
totals to be 4-6+" above 3500 ft with a substantial drop off at any
elevation level below that. After the snow tapers off, the real
weather story will be the deep cold air that filters in across the
entire cwa. With steady caa and low thicknesses, expect temperatures
to take a huge dip Tuesday and Tuesday. Readings will be in the
order of 10+ degrees below normal for this time of the year. 20s and
30s for highs in the higher terrain and 40s elsewhere, while min
temps drop into the 10s and low 20s in the mountains with mid and
uppers 20s east of the mountains. By the middle part of the week,
the cwa should begin to moderate as the upper low ejects to the
northeast and shortwave ridging builds in from the west. Sfc high
will control the overall weather pattern and keeps the area dry
through the rest of the period. Another upper low will be knocking
on our doorsteps with increasing clouds and waa by 12Z Thursday, but
should stray away from impacting the short-term period with any
precip at this time.

&&

.LONG TERM /THURSDAY THROUGH SUNDAY/...
As of 300 AM Monday: Sfc high continues to influence the beginning
portions of the medium range. Conditions begin to deteriorate late
Thursday into Friday as an upper low swings in from the mid MS
Valley. The GFS continues to be more progressive than the ECMWF, but
they are in agreement with the overall set up. PoPs are in the
forecast due to the upper low and attendant frontal boundary during
the last day of the work week. The ECMWF run would suggest keeping
PoPs going into the first half of the day on Saturday. Where the
global models begin to diverge is timing and what happens over the
weekend. The GFS carries a secondary upper low across the southern
and central Plains and pushes into the area on Sunday, but low-level
support for any precip will be minimal. The weekend looks mostly dry
with the exception of day 7 when the upper low is projected to be
ejected offshore by an upper trough that digs into the eastern
CONUS. This setup could be favorable for another rain/snow event for
the mountains, but is way too far out for a confident solution.
Temperatures will remain slightly below-normal for the duration of
the extended.

&&

.AVIATION /09Z MONDAY THROUGH FRIDAY/...
At KCLT and elsewhere: Moderate to heavy showers with IFR to
LIFR cigs and MVFR to IFR vsby. The showers will move out from west
to east near daybreak as a cold front crosses the area. Vsby should
improve along with the diminishing showers, but cig restrictions
will linger until mid morning or so when drier air filters in behind
the front. NE wind will become S to SW then gusty after FROPA. KAVL
will see S wind becoming NW and gusty. Low VFR cigs may linger or
even redevelop with convergence developing as the flow comes off the
mountains acts on lingering low level moisture. Have a PROB30 at
KAVL for MVFR cigs and light snow showers as they may move up the
valley during the evening. Gusty W, NW at KAVL, winds continue into
the evening but with lower speeds, higher speeds at KAVL.

Outlook: Windy conditions linger into Tuesday, with low cigs and
snow showers possible in the mountains as well. Otherwise, VFR
conditions expected.

Confidence Table...

            08-14Z        14-20Z        20-02Z        02-06Z
KCLT       High  81%     High  84%     High 100%     High 100%
KGSP       High  89%     High  93%     High 100%     High 100%
KAVL       High  90%     Med   74%     High  94%     High  89%
KHKY       High  88%     Med   79%     High 100%     High 100%
KGMU       High  97%     High 100%     High 100%     High 100%
KAND       High  89%     High 100%     High 100%     High 100%

The percentage reflects the number of guidance members agreeing
with the scheduled TAF issuance flight rule category. Complete hourly
experimental aviation forecast consistency tables are available at
the following link:

www.weather.gov/gsp/aviation

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...Winter Weather Advisory below 3500 feet from 7 AM this morning
     to noon EST Tuesday for NCZ033-048>052-058.
     Winter Storm Warning above 3500 feet from 7 AM this morning to
     noon EST Tuesday for NCZ033-048>052-058.
SC...None.

&&

SYNOPSIS...RWH
NEAR TERM...RWH
SHORT TERM...CAC
LONG TERM...CAC
AVIATION...RWH
Hazardous weather outlook, Nov 29, 4:26 PM EST, 11 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
426 PM EST Sun Nov 29 2020

NCZ033-048>052-058-302130-
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Graham-
426 PM EST Sun Nov 29 2020

...WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY
MORNING...

This Hazardous Weather Outlook is for western North Carolina.

.DAY ONE...Tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Watch.

.SPOTTER INFORMATION STATEMENT...

None.

GAZ010-017-018-026-028-029-NCZ035>037-053-056-057-059-062>065-
068>072-082-501>510-SCZ001>014-019-302130-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Alexander-Iredell-
Davie-Buncombe-Catawba-Rowan-Northern Jackson-Macon-Southern Jackson-
Transylvania-Henderson-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-
Union NC-Caldwell Mountains-Greater Caldwell-Burke Mountains-
Greater Burke-McDowell Mountains-Eastern McDowell-
Rutherford Mountains-Greater Rutherford-Polk Mountains-Eastern Polk-
Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
426 PM EST Sun Nov 29 2020

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina, western North Carolina and upstate South Carolina.

.DAY ONE...Tonight.

Widespread showers and isolated thunderstorms will develop this
evening and end by daybreak Monday. Some heavy rainfall is possible
and may lead to isolated flooding. Strong, gusty winds and cloud-to-
ground lightning will be possible with any thunderstorm.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 30, 3:55 AM ESTWinter Weather AdvisoryGSPAvery, Graham, Haywood, Macon, Madison, Mitchell and 2 more32 hr
Nov 30, 6:39 AM ESTSpecial Weather StatementGSPDavie, Iredell, Rowan51 min
Nov 30, 6:44 AM ESTSpecial Weather StatementGSPCabarrus, Gaston, Mecklenburg, Union46 min
Nov 30, 7:29 AM ESTSpecial Weather StatementGSPCabarrus, Davie, Rowan31 min

Nearby

Winter Storm Warnings in North Carolina, 2020Every winter storm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.