Alert archive / North Carolina / Winter Storm Warnings in 2020

Winter Storm Warning 2, NWS Greenville-Spartanburg, SC

February 28, 2020Graham County, Swain County, North Carolina

NWS Greenville-Spartanburg, SC issued this winter storm warning at Feb 28, 2020, 3:42 AM EST for Graham County, Swain County, North Carolina. It took effect at Feb 28, 2020, 7:00 AM EST. It was in force for 29 hr. 3 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
Feb 28, 2020, 3:42 AM EST (08:42 UTC)
In effect from
Feb 28, 2020, 7:00 AM EST
Expired
Feb 29, 2020, 12:00 PM EST
In force
29 hr
Issued by
NWS Greenville-Spartanburg, SC

Counties Graham County, NC, Swain County, NC

The radar

The Knoxville radar (KMRX), 87 km from the middle of the area, began a volume at 08:43 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
Feb 29, 8:00 AM ESTSNOW 3.95 Ne Robbinsville, NCSTECOAH. 28 DEGREES AT OB TIME. 0.18 INCH OF WATER EQUIVALENT. 2 INCHES ON GROUND AFTER SOME PREVIOUS MELTING AND COMPACTING. ELEVATION 2330 FEET.
Feb 29, 9:01 AM ESTSNOW 47 Wsw Town Of Santeetla, NCESTIMATED 3 TO 4 INCHES ON THE CHEROHALA SKYWAY. THE ROAD ON THE SKYWAY IS VERY ICY WITH BLACK ICE.
Feb 29, 9:07 AM ESTSNOW 1Robbinsville, NCAROUND AN INCH OF SNOW IN ROBBINSVILLE AND NEAR STECOAH.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 8.7 hours before the alert went out and 240 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, Peachtre/Fal Fld, GA at 00:00Z on 2020-02-28Temperature 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, Peachtre/Fal Fld, GA at 00:00Z on 2020-02-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.1939587897117136Sfc1 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
2143 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
-12 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

732 
WWUS42 KGSP 280842
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
342 AM EST Fri Feb 28 2020

...SNOW SHOWERS ACROSS THE NORTH CAROLINA MOUNTAINS THROUGH
SATURDAY MORNING...

.A passing upper-level disturbance is bringing snow showers back 
into the North Carolina mountains. The snow will continue off and
on through Saturday morning, and could mix with rain at times in 
the lower mountain valleys. The highest accumulations will occur 
along the higher ridge tops, especially in and around the Great 
Smoky Mountains and along the North Carolina/Tennessee border.

NCZ051-058-281700-
/O.NEW.KGSP.WS.W.0002.200228T1200Z-200229T1700Z/
/O.CON.KGSP.WW.Y.0009.200228T1200Z-200229T1700Z/
Swain-Graham-
Including the cities of Alarka, Almond, Bryson City, Luada, 
Wesser, Robbinsville, and Stecoah
342 AM EST Fri Feb 28 2020

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

* WHAT...For the Winter Storm Warning, heavy snow expected. Total
  snow accumulations of 2 to 6 inches at elevations above 3500
  feet, and as high as 9 inches above 5000 feet. For the Winter
  Weather Advisory, snow expected. Total snow accumulations of
  less than 2 inches in the valleys, but up to 4 inches on the
  ridges.

* WHERE...Swain and Graham Counties in North Carolina.

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

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


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. 

&&

$$

NCZ062-063-281700-
/O.EXA.KGSP.WW.Y.0009.200228T1200Z-200229T1700Z/
Macon-Southern Jackson-
Including the cities of Rainbow Springs, Kyle, and Highlands
342 AM EST Fri Feb 28 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO
NOON EST SATURDAY ABOVE 3500 FEET...

* WHAT...Snow expected. Total snow accumulations of around an inch
  in the valleys, but up to 3 inches on ridgetops.

* WHERE...Macon and Southern Jackson Counties in North Carolina.

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

* 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. 

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. 

&&

$$

NCZ033-048>050-052-059-281700-
/O.CON.KGSP.WW.Y.0009.200228T1200Z-200229T1700Z/
Avery-Madison-Yancey-Mitchell-Haywood-Northern Jackson-
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, Waynesville, Waterville, Canton, Cruso, 
Cove Creek, Cullowhee, Tuckasegee, and Sylva
342 AM EST Fri Feb 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS
MORNING TO NOON EST SATURDAY...

* WHAT...Snow expected. Total snow accumulations up to 2 inches at
  valley locations, and 2 to 4 inches on ridgetops. Isolated spots
  on northwest facing slopes could see up to 6 inches.

* WHERE...Portions of western North Carolina, especially along the
  Tennessee border.

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

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

&&

$$
8
5 follow-up statements
748 
WWUS42 KGSP 281559
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
1059 AM EST Fri Feb 28 2020

...SNOW SHOWERS ACROSS THE NORTH CAROLINA MOUNTAINS THROUGH
SATURDAY MORNING...

.A passing upper-level disturbance continues to develop snow 
showers across the North Carolina mountains. The snow will 
continue off and on through Saturday morning, and could mix with 
rain at times in the lower mountain valleys. The highest 
accumulations will occur along the higher ridge tops, especially 
in and around the Great Smoky Mountains and along the North 
Carolina/Tennessee border.

NCZ051-058-290000-
/O.CON.KGSP.WS.W.0002.000000T0000Z-200229T1700Z/
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Swain-Graham-
Including the cities of Alarka, Almond, Bryson City, Luada, 
Wesser, Robbinsville, and Stecoah
1059 AM EST Fri Feb 28 2020

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

* WHAT...For the Winter Storm Warning, heavy snow expected. 
  Total snow accumulations of 2 to 6 inches at elevations above 
  3500 feet, and as high as 9 inches above 5000 feet. For the 
  Winter Weather Advisory, snow expected. Total snow 
  accumulations of less than 2 inches in the valleys, but up to 
  4 inches on the ridges.

* WHERE...Swain and Graham Counties in North Carolina.

* WHEN...Until noon EST Saturday.

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


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.

&&

$$

NCZ033-048>050-052-059-290000-
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Avery-Madison-Yancey-Mitchell-Haywood-Northern Jackson-
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, Waynesville, Waterville, Canton, Cruso, 
Cove Creek, Cullowhee, Tuckasegee, and Sylva
1059 AM EST Fri Feb 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
SATURDAY...

* WHAT...Snow expected. Total snow accumulations up to 2 inches 
  at valley locations, and 2 to 4 inches on ridgetops. Isolated 
  spots on northwest facing slopes could see up to 6 inches.

* WHERE...Portions of western North Carolina, especially along 
  the Tennessee border.

* WHEN...Until noon EST Saturday.

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

&&

$$

NCZ062-063-290000-
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Macon-Southern Jackson-
Including the cities of Rainbow Springs, Kyle, and Highlands
1059 AM EST Fri Feb 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
SATURDAY ABOVE 3500 FEET...

* WHAT...Snow expected. Total snow accumulations of around an 
  inch in the valleys, but up to 3 inches on ridgetops.

* WHERE...Macon and Southern Jackson Counties in North Carolina.

* WHEN...Until noon EST Saturday.

* 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.

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.

&&

$$

Krentz
745 
WWUS42 KGSP 282056
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
356 PM EST Fri Feb 28 2020

...SNOW SHOWERS ACROSS THE NORTH CAROLINA MOUNTAINS THROUGH
SATURDAY MORNING...

.A passing upper-level disturbance will support continued snow 
showers across mountains through Saturday morning. The greatest 
accumulations will occur along the higher ridge tops, especially 
in and around the Great Smoky Mountains and along the North 
Carolina/Tennessee border.

NCZ051-058-290500-
/O.CON.KGSP.WS.W.0002.000000T0000Z-200229T1700Z/
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Swain-Graham-
Including the cities of Alarka, Almond, Bryson City, Luada, 
Wesser, Robbinsville, and Stecoah
356 PM EST Fri Feb 28 2020

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

* WHAT...For the Winter Storm Warning, heavy snow expected. 
  Total snow accumulations of 2 to 6 inches at elevations above 
  3500 feet, and as high as 9 inches above 5000 feet. For the 
  Winter Weather Advisory, snow expected. Total snow 
  accumulations of less than 2 inches in the valleys, but up to 
  4 inches on the ridges.

* WHERE...Swain and Graham Counties in North Carolina.

* WHEN...Until noon EST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions likely will 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.

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.

&&

$$

NCZ033-048>050-052-059-290500-
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Avery-Madison-Yancey-Mitchell-Haywood-Northern Jackson-
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, Waynesville, Waterville, Canton, Cruso, 
Cove Creek, Cullowhee, Tuckasegee, and Sylva
356 PM EST Fri Feb 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
SATURDAY...

* WHAT...Snow expected. Total snow accumulations up to 2 inches 
  at valley locations, and 2 to 4 inches on ridgetops. Isolated 
  spots on northwest facing slopes could see up to 6 inches.

* WHERE...Portions of western North Carolina, especially along 
  the Tennessee border.

* WHEN...Until noon EST Saturday.

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

&&

$$

NCZ062-063-290500-
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Macon-Southern Jackson-
Including the cities of Rainbow Springs, Kyle, and Highlands
356 PM EST Fri Feb 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
SATURDAY ABOVE 3500 FEET...

* WHAT...Snow expected. Total snow accumulations of around an 
  inch in the valleys, but up to 3 inches on ridgetops.

* WHERE...Macon and Southern Jackson Counties in North Carolina.

* WHEN...Until noon EST Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the evening 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/SBK
788 
WWUS42 KGSP 290334
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
1034 PM EST Fri Feb 28 2020

...SNOW SHOWERS ACROSS THE NORTH CAROLINA MOUNTAINS THROUGH
SATURDAY MORNING...

.A passing upper-level disturbance will support continued snow
showers, heavy at times, across mountains through Saturday 
morning. The greatest accumulations will occur along the higher 
ridge tops, especially in and around the Great Smoky Mountains and
along the North Carolina/Tennessee border.

NCZ051-058-291100-
/O.CON.KGSP.WS.W.0002.000000T0000Z-200229T1700Z/
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Swain-Graham-
Including the cities of Alarka, Almond, Bryson City, Luada, 
Wesser, Robbinsville, and Stecoah
1034 PM EST Fri Feb 28 2020

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

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow
  accumulations of 2 to 4 inches above 3500 feet. For the Winter
  Weather Advisory, snow. Additional snow accumulations of 1 to 2
  inches. Snowfall rates of 1 to 2 inches per hour are possible in
  heavier bands. 

* WHERE...Swain and Graham Counties.

* WHEN...Until noon EST Saturday.

* IMPACTS...Slippery road conditions with reduced visibility at
  times.

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. 

&&

$$

NCZ033-048>050-052-059-291100-
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Avery-Madison-Yancey-Mitchell-Haywood-Northern Jackson-
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, Waynesville, Waterville, Canton, Cruso, 
Cove Creek, Cullowhee, Tuckasegee, and Sylva
1034 PM EST Fri Feb 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches with
  locally 4 inches along the ridgetops. Snowfall rates of one to
  two inches per hour are possible in heavier bands. 

* WHERE...Portions of western North Carolina.

* WHEN...Until noon EST Saturday.

* IMPACTS...Slippery road conditions with reduced visibility at
  times.

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. 

&&

$$

NCZ062-063-291100-
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Macon-Southern Jackson-
Including the cities of Rainbow Springs, Kyle, and Highlands
1034 PM EST Fri Feb 28 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
SATURDAY ABOVE 3500 FEET...

* WHAT...Snow. Additional snow accumulations of up to two inches.
  Snowfall rates of one to two inches per hour are possible in
  heavier bands. 
 
* WHERE...Southern Jackson and Macon Counties.

* WHEN...Until noon EST Saturday.

* IMPACTS...Slippery road conditions with reduced visibility at
  times.

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
476 
WWUS42 KGSP 290900
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
400 AM EST Sat Feb 29 2020

...SNOW SHOWERS ACROSS THE NORTH CAROLINA MOUNTAINS ENDING LATE
THIS MORNING...

.A passing upper-level disturbance will support continued snow
showers, heavy at times, across mountains through the morning
hours. The greatest accumulations will occur along the higher 
ridge tops, especially in and around the Great Smoky Mountains and
along the North Carolina/Tennessee border.

NCZ051-058-291700-
/O.CON.KGSP.WS.W.0002.000000T0000Z-200229T1700Z/
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Swain-Graham-
Including the cities of Alarka, Almond, Bryson City, Luada, 
Wesser, Robbinsville, and Stecoah
400 AM EST Sat Feb 29 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 1 to 3 inches above 3500 feet. For the Winter
  Weather Advisory, snow. Additional snow accumulations of up to
  one inch. Snowfall rates of 1 to 2 inches per hour are possible
  in heavier bands.

* WHERE...Swain and Graham Counties.

* WHEN...Until noon EST today.

* IMPACTS...Slippery road conditions with reduced visibility at 
  times.

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. 

&&

$$

NCZ033-048>050-052-059-291700-
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Avery-Madison-Yancey-Mitchell-Haywood-Northern Jackson-
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, Waynesville, Waterville, Canton, Cruso, 
Cove Creek, Cullowhee, Tuckasegee, and Sylva
400 AM EST Sat Feb 29 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST
TODAY...

* WHAT...Snow showers. Additional snow accumulations of 1 to 2
  inches with locally 3 inches along the ridgetops. Snowfall 
  rates of one to two inches per hour are possible in heavier 
  bands.

* WHERE...Portions of western North Carolina.

* WHEN...Until noon EST today.

* IMPACTS...Slippery road conditions with reduced visibility at 
  times.

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. 

&&

$$

NCZ062-063-291700-
/O.CON.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Macon-Southern Jackson-
Including the cities of Rainbow Springs, Kyle, and Highlands
400 AM EST Sat Feb 29 2020

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

* WHAT...Snow. Additional snow accumulations of up to one inch. 
  Snowfall rates of one to two inches per hour are possible in 
  heavier bands.

* WHERE...Southern Jackson and Macon Counties.

* WHEN...Until noon EST today.

* IMPACTS...Slippery road conditions with reduced visibility at 
  times.

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. 

&&

$$

ARK
558 
WWUS42 KGSP 291638
WSWGSP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
1138 AM EST Sat Feb 29 2020

NCZ051-058-291745-
/O.EXP.KGSP.WS.W.0002.000000T0000Z-200229T1700Z/
/O.EXP.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Swain-Graham-
Including the cities of Alarka, Almond, Bryson City, Luada, 
Wesser, Robbinsville, and Stecoah
1138 AM EST Sat Feb 29 2020

...WINTER STORM WARNING WILL EXPIRE AT NOON EST TODAY ABOVE
3500 FEET...
...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON EST TODAY BELOW
3500 FEET...

The snow has tapered off across the Smoky Mountains, so the
warnings and advisories will be allowed to expire at noon. If you
are traveling around the region this afternoon, be on the lookout
for slippery spots on untreated and secondary roads. Patches of
black ice should be expected on roads again tonight and Sunday 
morning.

$$

NCZ033-048>050-052-059-291745-
/O.EXP.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Avery-Madison-Yancey-Mitchell-Haywood-Northern Jackson-
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, Waynesville, Waterville, Canton, Cruso, 
Cove Creek, Cullowhee, Tuckasegee, and Sylva
1138 AM EST Sat Feb 29 2020

...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON EST TODAY...

The snow has tapered off across the mountains, so the advisory 
will be allowed to expire at noon. Some light snow flurries or a
passing brief snow shower can be expected through mid-afternoon,
particularly over Avery County, but no significant additional
accumulation is expected. If you are traveling around the region 
this afternoon, be on the lookout for slippery spots on untreated 
and secondary roads. Patches of black ice should be expected on 
roads again tonight and Sunday morning.

$$

NCZ062-063-291745-
/O.EXP.KGSP.WW.Y.0009.000000T0000Z-200229T1700Z/
Macon-Southern Jackson-
Including the cities of Rainbow Springs, Kyle, and Highlands
1138 AM EST Sat Feb 29 2020

...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON EST TODAY ABOVE
3500 FEET...

The snow has tapered off across the high elevations of the
Nantahala and Balsam Mountains, so the advisory will be allowed 
to expire at noon. If you are traveling around the region this 
afternoon, be on the lookout for slippery spots on untreated and 
secondary roads. Patches of black ice should be expected on roads 
again tonight and Sunday morning.

$$

PM

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 Feb 28, 3:29 AM EST, 13 minutes earlier.

Area forecast discussion, Feb 28, 3:29 AM EST, 13 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
329 AM EST Fri Feb 28 2020

.SYNOPSIS...
A clipper system will bring more mountain snow between now and
Saturday morning, with a few rain showers possible elsewhere. After
that system exits, dry and cool air will settle over the area for
the rest of the weekend. A warm and wet pattern is expected to
return early next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 330 AM: Precip is starting to blossom on radar mosaic across
the Mid-South, associated with potent vort lobe diving into the
base of deep upper longwave trough. This precip will continue
to expand and shift east, impacting the Southern Appalachians by
late morning. The associated vort lobe will bring steep mid-lvl
lapse rates, resulting in a 100 J/kg or more of sbCAPE. The latest
CAMs agree on convective-looking snow shower activity for the NC
mountains, especially the Smokies, Nantahala and Unicoi mountains
in the west, thanks to a westerly upslope flow. Latest QPF and
snow totals with this activity today thru Saturday morning haven't
changed much from previous forecast. And with confidence increasing
on the totals, have opted to upgrade to a Winter Storm Warning
for Graham and Swain counties above 3500 ft. Also, expanded the
Winter Weather Advisory to Macon and southern Jackson counties
above 3500 ft. The rest of the advisory looks good. Outside of
these areas, expect increasing clouds and isolated to widely
scattered showers. Fcst soundings still show shallow sfc-based
warm layer and some CAPE in the snow-growth zone. So it will be
possible for a few snow and/or graupel showers to develop east of
the mountains, especially the NC foothills and Piedmont. But not
expecting any impacts with temps in the 40s to near 50 deg. Given
the strong forcing and steep lapse rates, this system has the
potential to overperform, like previous events this winter. But
moisture looks a bit more lacking, so confidence is low for any
accumulating snow outside the high elevations today. Another
issue with this feature will be windy conditions. Deep mixing
could tap into gusts approaching 30-35 mph or more this aftn,
especially across the Upstate and NE GA, in addition to the high
elevations. Not expecting winds to warrant an advisory at this
point, but it does bear watching.

Tonight, another strong shortwave will follow right on the heels
of the first one, bringing another round of snow showers to
NC mountains. This second round should be more like a typical
NW flow snow event, as 850 mb flow veers from westerly to
west-northwesterly. CAA ramps up as well, and snow ratios should
become a little better for accumulating snow. However, the event
doesn't last long enough to accumulate warning criteria snow
amounts. Temps will fall into the 20s to lower 30s across the
entire area, which is below normal for the end of February.

&&

.SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/...
As of 200 AM Fri: Winds will continue to be oriented for continued
upslope flow across the Appalachians on Saturday. However, moisture
will be depleted through the morning, as heights rise across the
region with the arrival of high pressure. While a well defined
shortwave trough will be overhead early in the day, subsidence
inversion should already be setting in; not looking particularly
likely for the shortwave to drive any shower development. Thus, the
fcst reflects the remaining upslope snow tapering off during the
morning. Settled weather can be expected for the rest of the weekend,
with temps moderating from Saturday to Sunday as the sfc high
migrates across the area. By early Monday, the high will be centered
off the East Coast, and low pressure will be traveling north of the
Great Lakes. The resultant southwesterly return flow will pump
moisture inland from the Gulf, mainly across the lower Mississippi
and Ohio valleys, but it is sufficient for PoPs to return Sunday
night to our western mountain zones and adjacent areas near the
south-facing Escarpment.

&&

.LONG TERM /MONDAY THROUGH THURSDAY/...
As of 300 AM Fri: The northern stream will continue to progress early
next week, as sfc cyclone pushes thru eastern Canada. Meanwhile, the
western Atlantic ridge will more or less block the southern stream,
and phasing of shortwaves subsequently is expected across the central
CONUS, with attendant cyclogenesis. A moist return flow regime thus
looks likely to continue across the Southeast thru the middle of the
week, with warm temps. PoPs will continue for the western zones and
the south-facing Escarpment early in the medium range; the focus for
heavy rainfall around that time most likely will be over the lower
Ohio Valley near a developing warm front. As the aforementioned
trough swings into our area, a marked uptick in precip coverage and
especially rates should occur across the CWA, most likely Wednesday.
The GFS depiction of the phased trough results in a faster and more
vigorous frontal precip event, whereas the Euro and Canadian show the
front languishing over the Southeast and accordingly prog a longer
period of precip lasting into Thursday. PoPs taper off late Thursday
as consensus indicates the system will exit to our east by that
time, as temps fall back again.

&&

.AVIATION /09Z FRIDAY THROUGH TUESDAY/...
At KCLT and Elsewhere: expect increasing mid and high clouds early
this morning, with lower-VFR cigs expected this aftn, as a strong
upper wave passes by. Snow showers or RA/SN shower mix expected
in the mountains, which may impact KAVL. Isolated to scattered
showers will be able to develop east of the mountains during the
aftn hours, especailly in the NC foothills/piedmont. A mix of snow
and/or graupel is possible with these showers, thanks to steep
mid-lvl lapse rates. But sfc temps will be warm. Winds will start
out light, but increase out of the SW and become gusty by midday
(toggling to NW at KAVL by 18z). Lower cigs should clear out,
and winds become a little lighter this evening.

Outlook: VFR conditions will generally persist through the weekend,
but with occasional flight restrictions and/or scattered snow
showers possible over the mountains from time to time through
Saturday. Deeper moisture and the potential for more restrictions
returns on Monday and persists thru the middle of next week.

Confidence Table...

            08-14Z        14-20Z        20-02Z        02-06Z
KCLT       High 100%     High 100%     High 100%     High 100%
KGSP       High 100%     High 100%     High 100%     High 100%
KAVL       High 100%     High 100%     High  98%     High 100%
KHKY       High 100%     High 100%     High  98%     High 100%
KGMU       High 100%     High 100%     High 100%     High 100%
KAND       High 100%     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 from 7 AM this morning to noon EST
     Saturday for NCZ033-048>050-052-059.
     Winter Weather Advisory above 3500 feet from 7 AM this morning
     to noon EST Saturday for NCZ062-063.
     Winter Weather Advisory below 3500 feet from 7 AM this morning
     to noon EST Saturday for NCZ051-058.
     Winter Storm Warning above 3500 feet from 7 AM this morning to
     noon EST Saturday for NCZ051-058.
SC...None.

&&

SYNOPSIS...08
NEAR TERM...ARK
SHORT TERM...08
LONG TERM...08
AVIATION...ARK
Hazardous weather outlook, Feb 27, 9:24 PM EST, 6 hours 18 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
924 PM EST Thu Feb 27 2020

NCZ033-048>052-058-059-290230-
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Graham-Northern Jackson-
924 PM EST Thu Feb 27 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM FRIDAY TO NOON EST
SATURDAY...

This Hazardous Weather Outlook is for much of the mountains of
western North Carolina, especially near the Tennessee border.

.DAY ONE...Tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Winter Weather Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotters will be needed to relay snow reports on Friday.

GAZ010-017-NCZ053-062>065-290230-
Rabun-Habersham-Buncombe-Macon-Southern Jackson-Transylvania-
Henderson-
924 PM EST Thu Feb 27 2020

This Hazardous Weather Outlook is for the mountains of northeast
Georgia and parts of the central and southern mountains of western
North Carolina.

.DAY ONE...Tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Snow showers may develop across the mountains of western North
Carolina and northeast Georgia on Friday and continue Friday night.
Light accumulations are possible, especially along the higher
elevations.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed to relay snow reports on Friday.

GAZ018-026-028-029-NCZ035>037-056-057-068>072-082-501>510-SCZ001>014-
019-290230-
Stephens-Franklin-Hart-Elbert-Alexander-Iredell-Davie-Catawba-Rowan-
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-
924 PM EST Thu Feb 27 2020

This Hazardous Weather Outlook is for northeast Georgia, the
foothills and Piedmont of western North Carolina, and Upstate South
Carolina.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

HG

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 5:37 PM ESTSpecial Weather StatementGSPAvery, Madison, Mitchell, Yancey83 min
Feb 28, 6:50 PM ESTSpecial Weather StatementGSPAvery, Mitchell, Yancey70 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.