Alert archive / North Carolina / Winter Storm Warnings in 2020
Winter Storm Warning 3, NWS Greenville-Spartanburg, SC
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
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 30, 9:35 PM EST | SNOW 1 | Banner Elk, NC | |
| Dec 1, 12:03 AM EST | SNOW 3.5 | 3 Nne Faust, NC | WOLF LAUREL AREA |
| Dec 1, 7:00 AM EST | SNOW 2 | 2 Nw Waynesville, NC | REPORT FROM NEAR WAYNESVILLE OF 2 INCHES. |
| Dec 1, 7:00 AM EST | SNOW 3.8 | 13 Nnw Marshall, NC | ELEVATION 1991. 3.8 INCHES. |
| Dec 1, 7:00 AM EST | SNOW 5.4 | 5 N Bakersville, NC | 5.4 INCHES NORTH OF BAKERSVILLE. ELEVATION 3832 FEET. |
| Dec 1, 7:00 AM EST | SNOW 6 | 1 Ese Buladean, NC | 6 INCHES AT BULADEAN. |
| Dec 1, 7:00 AM EST | SNOW 7 | 3 Nnw Faust, NC | SAMS 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 EST | SNOW 8 | 4 Nne Faust, NC | |
| Dec 1, 8:00 AM EST | SNOW 8 | 4 Nne Faust, NC | |
| Dec 1, 12:00 PM EST | SNOW 15 | 9 W Robbinsville, NC | ON 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.
- 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
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...RWHHazardous 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 30, 3:55 AM EST | Winter Weather Advisory | GSP | Avery, Graham, Haywood, Macon, Madison, Mitchell and 2 more | 32 hr |
| Nov 30, 6:39 AM EST | Special Weather Statement | GSP | Davie, Iredell, Rowan | 51 min |
| Nov 30, 6:44 AM EST | Special Weather Statement | GSP | Cabarrus, Gaston, Mecklenburg, Union | 46 min |
| Nov 30, 7:29 AM EST | Special Weather Statement | GSP | Cabarrus, Davie, Rowan | 31 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.