Alert archive / North Carolina / Winter Storm Warnings in 2018
Winter Storm Warning 4, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this winter storm warning at Mar 23, 2018, 3:21 PM EDT for 12 counties in North Carolina. It took effect at Mar 24, 2018, 12:00 AM EDT. It was in force for 28 hr. 30 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
- Mar 23, 2018, 3:21 PM EDT (19:21 UTC)
- In effect from
- Mar 24, 2018, 12:00 AM EDT
- Expired
- Mar 25, 2018, 4:11 AM EDT
- In force
- 28 hr
- Issued by
- NWS Greenville-Spartanburg, SC
Counties Alexander County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Caldwell County, NC, Catawba County, NC, Davie County, NC, Iredell County, NC, McDowell County, NC, Mitchell County, NC, Rowan County, NC, Yancey County, NC
The radar
The Greer radar (KGSP), 122 km from the middle of the area, began a volume at 19:27 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 |
|---|---|---|---|
| Mar 24, 11:05 AM EDT | SNOW 2 | Little Switzerland, NC | |
| Mar 24, 8:15 PM EDT | SLEET 0 | Bethlehem, NC | |
| Mar 24, 8:16 PM EDT | SNOW 1 | 3 S Spruce Pine, NC | ELEVATION 2730FT. |
| Mar 24, 8:30 PM EDT | SLEET 0 | Granite Falls, NC | |
| Mar 24, 9:20 PM EDT | SLEET 0 | 1 Ssw Sheffield, NC | |
| Mar 24, 9:30 PM EDT | FREEZING RAIN 0.1 | Newland, NC | |
| Mar 24, 9:40 PM EDT | SLEET 0 | 5 W Salisbury, NC | |
| Mar 24, 9:45 PM EDT | SLEET 0 | Statesville, NC | |
| Mar 24, 10:00 PM EDT | SLEET 0.3 | 1 Ssw Sheffield, NC | SPOTTER MEASURED ON 0.3 INCH OF SLEET ON SNOW BOARD. SLEET CHANGED TO SNOW AT APPROXIMATELY 1000PM. |
| Mar 24, 10:29 PM EDT | SLEET 0.3 | Mocksville, NC | |
| Mar 24, 10:45 PM EDT | FREEZING RAIN 0.25 | Linville, NC | SPOTTER REPORTS POWER OUTAGE. |
| Mar 24, 10:45 PM EDT | SNOW 3.5 | Linville, NC | SPOTTER REPORTS POWER OUTAGE. |
| Mar 24, 10:50 PM EDT | SLEET 0 | Taylorsville, NC | |
| Mar 24, 10:55 PM EDT | SNOW 1 | Olin, NC | MIXTURE OF SNOW AND SLEET ACCUMULATION. |
| Mar 24, 11:00 PM EDT | SNOW 1 | 2 N Taylorsville, NC | MIXTURE OF SNOW AND SLEET ACCUMULATION. ROADWAYS COVERED. SOME ACCIDENTS BEING REPORTED ACROSS ALEXANDER COUNTY. |
| Mar 24, 11:10 PM EDT | SNOW 1.6 | 1 Ssw Sheffield, NC | MEASURED ON SNOW BOARD. ACCUMULATION BEGAN AT APPROXIMATELY 1000PM. |
| Mar 24, 11:30 PM EDT | SNOW 1.5 | Hiddenite, NC | MODERATE SNOW ONGOING WITH HALF-MILE VISIBILITY. NUMEROUS ACCIDENTS REPORTED ACROSS ALEXANDER COUNTY. |
| Mar 24, 11:40 PM EDT | SNOW 1 | Statesville, NC | MIXTURE OF SNOW AND SLEET ACCUMULATION. |
| Mar 24, 11:45 PM EDT | SNOW 0.5 | 5 Wnw Vashti, NC | MIXTURE OF SNOW AND SLEET ACCUMULATION. |
| Mar 24, 11:48 PM EDT | SNOW 1 | Mocksville, NC | MIXTURE OF SNOW AND SLEET ACCUMULATION. |
| Mar 24, 11:55 PM EDT | SNOW 0.5 | Statesville, NC | MIXTURE OF SNOW AND SLEET ACCUMULATION. |
| Mar 25, 12:00 AM EDT | FREEZING RAIN 0.2 | 2 Sw Newland, NC | RESIDENT REPORTS POWER FLICKERING BUT HAS NOT YET BEEN LOST. |
| Mar 25, 12:05 AM EDT | SNOW 1 | Troutman, NC | MIXTURE OF SNOW AND SLEET ACCUMULATION. |
| Mar 25, 12:17 AM EDT | SLEET 0 | Lenoir, NC | NUMEROUS ACCIDENTS REPORTED ACROSS CALDWELL COUNTY. |
| Mar 25, 12:40 AM EDT | SNOW 0.5 | Union Grove, NC | MIXTURE OF SNOW AND SLEET ACCUMULATION. ESTIMATED FROM PHOTO. |
| Mar 25, 12:40 AM EDT | SNOW 1 | Union Grove, NC | MIXTURE OF SNOW AND SLEET ACCUMULATION. |
| Mar 25, 12:45 AM EDT | SNOW 1.5 | 2 Nw Crossnore, NC | SNOW ACCUMULATION OCCURRED EARLIER IN DAY. |
| Mar 25, 1:00 AM EDT | FREEZING RAIN 0 | Cajah'S Mountain, NC | |
| Mar 25, 1:00 AM EDT | SNOW 3 | 1 Ssw Sheffield, NC | STORM-TOTAL ACCUMULATION ON SNOW BOARD. SNOW CHANGED TO RAIN AT APPROXIMATELY 100 AM. SNOW MIXED WITH SLEET AT TIMES. |
| Mar 25, 1:10 AM EDT | SLEET 0.1 | Cajah'S Mountain, NC |
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 12:00Z, 7.4 hours before the alert went out and 151 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
- 1396 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
403 WWUS42 KGSP 231921 WSWGSP URGENT - WINTER WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 321 PM EDT Fri Mar 23 2018 ...WINTRY PRECIPITATION EXPECTED ACROSS THE NORTHERN MOUNTAINS OF NORTH CAROLINA THIS WEEKEND... .A cold air mass will be in place across the area this weekend. A low pressure system will move in from the northwest bringing moisture and precipitation to the area. The precipitation will initially fall as snow tonight and Saturday across the northern mountains, transitioning to a wintry mix and then freezing rain late Saturday into Saturday night. NCZ033-049-050-240330- /O.UPG.KGSP.WS.A.0003.180324T1200Z-180325T1600Z/ /O.NEW.KGSP.WS.W.0004.180324T0400Z-180325T1600Z/ Avery-Yancey-Mitchell- Including the cities of Ingalls, Banner Elk, Newland, Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, and Poplar 321 PM EDT Fri Mar 23 2018 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON EDT SUNDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 5 inches, with localized amounts up to 7 inches, and ice accumulations of around one tenth are expected. A quarter of an inch of ice will be possible across Avery County. * WHERE...Avery, Yancey and Mitchell Counties. * WHEN...From midnight tonight to noon EDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. 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. && $$ NCZ053-240330- /O.NEW.KGSP.WS.W.0004.180324T0400Z-180325T1600Z/ Buncombe- 321 PM EDT Fri Mar 23 2018 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON EDT SUNDAY ABOVE 3500 FEET... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 4 inches, with localized amounts up to 6 inches, and ice accumulations of a light glaze are expected. * WHERE...Buncombe County elevations above 3500 feet. * WHEN...From midnight tonight to noon EDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. Please report snow and ice accumulations by calling the National Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message with your observation and the specific location where it occurred. You can also post your report to National Weather Service Greenville Spartanburg Facebook or tweet your report using hashtag nwsgsp. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/gsp. && $$ NCZ048-501-503-505-240330- /O.NEW.KGSP.WW.Y.0014.180324T0400Z-180325T1600Z/ Madison-Caldwell Mountains-Burke Mountains-McDowell Mountains- Including the cities of Faust, Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, Jonas Ridge, Ashford, Woodlawn, and Old Fort 321 PM EDT Fri Mar 23 2018 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON EDT SUNDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to 2 inches, with localized amounts up to 4 inches, and ice accumulations of a light glaze are expected. * WHERE...Madison, Caldwell Mountains, Burke Mountains and McDowell Mountains Counties. * WHEN...From midnight tonight to noon EDT Sunday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. 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. && $$
7 follow-up statements
096 WWUS42 KGSP 240148 WSWGSP URGENT - WINTER WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 948 PM EDT Fri Mar 23 2018 ...WINTRY PRECIPITATION EXPECTED ACROSS THE NORTHERN MOUNTAINS OF NORTH CAROLINA THIS WEEKEND... .A cold air mass will be in place across the area this weekend. A low pressure system will move in from the northwest bringing moisture and precipitation to the area. The precipitation will initially fall as snow early Saturday across the northern mountains, transitioning to a wintry mix and then freezing rain late Saturday into Saturday night. NCZ033-049-050-241000- /O.CON.KGSP.WS.W.0004.180324T0400Z-180325T1600Z/ Avery-Yancey-Mitchell- Including the cities of Ingalls, Banner Elk, Newland, Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, and Poplar 948 PM EDT Fri Mar 23 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 1 to 3 inches, with localized amounts up to 7 inches, and ice accumulations of around one tenth are expected. * WHERE...Avery, Yancey and Mitchell Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. Please report snow and ice accumulations by calling the National Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message with your observation and the specific location where it occurred. You can also post your report to National Weather Service Greenville Spartanburg Facebook or tweet your report using hashtag nwsgsp. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/gsp. && $$ NCZ053-241000- /O.CON.KGSP.WS.W.0004.180324T0400Z-180325T1600Z/ Buncombe- 948 PM EDT Fri Mar 23 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EDT SUNDAY ABOVE 3500 FEET... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 4 inches, with localized amounts up to 6 inches, and ice accumulations of a light glaze are expected. * WHERE...Buncombe County. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. 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. && $$ NCZ048-501-503-505-241000- /O.CON.KGSP.WW.Y.0014.180324T0400Z-180325T1600Z/ Madison-Caldwell Mountains-Burke Mountains-McDowell Mountains- Including the cities of Faust, Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, Jonas Ridge, Ashford, Woodlawn, and Old Fort 948 PM EDT Fri Mar 23 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to 2 inches, with localized amounts up to 5 inches, and ice accumulations of a light glaze are expected. * WHERE...Madison, Caldwell Mountains, Burke Mountains and McDowell Mountains Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. Please report snow and ice accumulations by calling the National Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message with your observation and the specific location where it occurred. You can also post your report to National Weather Service Greenville Spartanburg Facebook or tweet your report using hashtag nwsgsp. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/gsp. && $$
990 WWUS42 KGSP 240820 WSWGSP URGENT - WINTER WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 420 AM EDT Sat Mar 24 2018 ...WINTRY PRECIPITATION EXPECTED ACROSS THE NORTHERN MOUNTAINS OF NORTH CAROLINA TODAY THROUGH TONIGHT... .A cold air mass will be in place, while a low pressure system will move in from the northwest bringing moisture and precipitation to the area. The precipitation will initially fall as snow early this morning across the northern mountains, transitioning to a wintry mix and then freezing rain this afternoon into tonight. NCZ033-049-050-241630- /O.CON.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ Avery-Yancey-Mitchell- Including the cities of Ingalls, Banner Elk, Newland, Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, and Poplar 420 AM EDT Sat Mar 24 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 1 to 3 inches, and ice accumulations of around one tenth, with locally up to a quarter inch, are expected. * WHERE...Avery, Yancey and Mitchell Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. 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. && $$ NCZ053-241630- /O.CON.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ Buncombe- 420 AM EDT Sat Mar 24 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EDT SUNDAY ABOVE 3500 FEET... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 4 inches, and ice accumulations of a light glaze are expected. * WHERE...eastern side of Buncombe County above 3500 ft. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. Please report snow and ice accumulations by calling the National Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message with your observation and the specific location where it occurred. You can also post your report to National Weather Service Greenville Spartanburg Facebook or tweet your report using hashtag nwsgsp. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/gsp. && $$ NCZ048-501-503-505-241630- /O.CON.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Madison-Caldwell Mountains-Burke Mountains-McDowell Mountains- Including the cities of Faust, Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, Jonas Ridge, Ashford, Woodlawn, and Old Fort 420 AM EDT Sat Mar 24 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to 2 inches, and ice accumulations of a light glaze are expected. * WHERE...Madison, Caldwell Mountains, Burke Mountains and McDowell Mountains Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. 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. && $$ ARK
101 WWUS42 KGSP 241612 WSWGSP URGENT - WINTER WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 1212 PM EDT Sat Mar 24 2018 ...WINTRY PRECIPITATION EXPECTED ACROSS THE NORTHERN MOUNTAINS OF NORTH CAROLINA TODAY THROUGH TONIGHT... .Snow will gradually taper off across the northern mountains of North Carolina this afternoon. Temperatures will begin slowly warming as well, but are expected to remain near freezing, mainly in areas along the Blue Ridge escarpment from Mount Mitchell northeast through Avery County. Light freezing rain or drizzle and accumulations of ice will be possible in these areas during this time. Heavier precipitation is expected to move back into the area from the west this evening. With some areas possibly lingering around freezing, especially across eastern Avery County, damaging ice accumulations are possible along and near the eastern Blue Ridge escarpment. NCZ048-241715- /O.CAN.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Madison- 1212 PM EDT Sat Mar 24 2018 ...WINTER WEATHER ADVISORY IS CANCELLED... Temperatures have warmed above freezing across Madison County, and only periods of rain are expected this afternoon through tonight. $$ NCZ033-049-050-242100- /O.CON.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ Avery-Yancey-Mitchell- Including the cities of Ingalls, Banner Elk, Newland, Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, and Poplar 1212 PM EDT Sat Mar 24 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to two inches are expected this afternoon. Ice accumulations of around one quarter inch are possible this evening. * WHERE...Avery, Yancey and Mitchell Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The main areas of concern for icing this evening will be along the Blue Ridge, from the Mount Mitchell area northeast through eastern Avery County. Ice accumulations of one quarter inch or more will cause scattered trees, limbs, and power lines to fall, resulting in some power outages. Also plan on difficult travel conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous. 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. && $$ NCZ053-242100- /O.CON.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ Buncombe- 1212 PM EDT Sat Mar 24 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EDT SUNDAY ABOVE 3500 FEET... * WHAT...Mixed precipitation. Additional snow accumulations of up to one along with a light glaze of ice are possible. * WHERE...The high elevations of Buncombe County. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. Please report snow and ice accumulations by calling the National Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message with your observation and the specific location where it occurred. You can also post your report to National Weather Service Greenville Spartanburg Facebook or tweet your report using hashtag nwsgsp. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/gsp. && $$ NCZ501-503-505-242100- /O.CON.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Caldwell Mountains-Burke Mountains-McDowell Mountains- Including the cities of Jonas Ridge, Ashford, Woodlawn, and Old Fort 1212 PM EDT Sat Mar 24 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of around one tenth are expected. * WHERE...Caldwell Mountains, Burke Mountains and McDowell Mountains Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The ice will result in difficult travel conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. 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. && $$ Lane
330 WWUS42 KGSP 241954 WSWGSP URGENT - WINTER WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 354 PM EDT Sat Mar 24 2018 ...FREEZING RAIN EXPECTED ACROSS PORTIONS OF THE WESTERN NORTH CAROLINA MOUNTAINS THROUGH TONIGHT... .Snow will continue to taper off across the northern mountains of North Carolina. Temperatures will continue to slowly warm as well, but are expected to remain near freezing in areas along the Blue Ridge escarpment from Mount Mitchell northeast through much of Avery County. Light freezing rain or drizzle and accumulations of ice will be possible in these areas through the afternoon. Heavier precipitation is expected to move back into the area from the west this evening. With some areas lingering around freezing, damaging ice accumulations are possible along and near the eastern Blue Ridge escarpment. NCZ053-250300- /O.CAN.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ /O.EXA.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Buncombe- 354 PM EDT Sat Mar 24 2018 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON EDT SUNDAY ABOVE 3500 FEET... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Freezing rain. Ice accumulations of up to a tenth of an inch are possible. * WHERE...The high elevations of Buncombe County, mainly in the far eastern and northeastern portions of the county. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The ice could result in very slippery conditions on sidewalks, roads and bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of freezing rain will cause travel difficulties. Expect slippery roads. Slow down and use caution while driving. 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. && $$ NCZ033-049-050-250300- /O.CON.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ Avery-Yancey-Mitchell- Including the cities of Ingalls, Banner Elk, Newland, Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, and Poplar 354 PM EDT Sat Mar 24 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Mixed precipitation. Additional snow accumulations of up to one inch are possible. Ice accumulations of one quarter to one half inch are possible. * WHERE...Avery, Yancey and Mitchell Counties, especially the southern and eastern portions of these counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...Power outages and tree damage are likely due to the ice. The ice could result in very slippery conditions on sidewalks, roads and bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet and ice will make travel very hazardous or impossible. 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. && $$ NCZ501-503-505-250300- /O.CON.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Caldwell Mountains-Burke Mountains-McDowell Mountains- Including the cities of Jonas Ridge, Ashford, Woodlawn, and Old Fort 354 PM EDT Sat Mar 24 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Mixed precipitation. Additional snow accumulations of up to one half inch and ice accumulations of up to one quarter inch are possible. * WHERE...The high elevations of Caldwell, Burke, and McDowell Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The ice will result in difficult travel conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. Expect slippery roads and limited visibilities, and use caution while driving. Please report snow and ice accumulations by calling the National Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message with your observation and the specific location where it occurred. You can also post your report to National Weather Service Greenville Spartanburg Facebook or tweet your report using hashtag nwsgsp. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/gsp. && $$ Lane
094 WWUS42 KGSP 250010 WSWGSP URGENT - WINTER WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 810 PM EDT Sat Mar 24 2018 ...FREEZING RAIN EXPECTED ACROSS PORTIONS OF THE WESTERN NORTH CAROLINA MOUNTAINS THROUGH TONIGHT... .Snow will continue to taper off across the northern mountains of North Carolina. Temperatures will continue to slowly warm as well, but are expected to remain near freezing in areas along the Blue Ridge escarpment from Mount Mitchell northeast through much of Avery County. Light freezing rain or drizzle and accumulations of ice will be possible in these areas through the afternoon. Heavier precipitation is expected to move back into the area from the west this evening. With some areas lingering around freezing, damaging ice accumulations are possible along and near the eastern Blue Ridge escarpment. NCZ033-049-050-250815- /O.CON.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ Avery-Yancey-Mitchell- Including the cities of Ingalls, Banner Elk, Newland, Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, and Poplar 810 PM EDT Sat Mar 24 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Significant icing. Additional ice accumulations of around two tenths are expected. * WHERE...Avery, Yancey and Mitchell Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The ice will result in difficult travel conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of ice will make travel very hazardous or impossible. 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. && $$ NCZ035>037-056-057-502-504-506-250815- /O.EXA.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Alexander-Iredell-Davie-Catawba-Rowan-Greater Caldwell- Greater Burke-Eastern McDowell- Including the cities of Bethlehem, Ellendale, Millersville, Taylorsville, Hiddenite, Stony Point, Statesville, Mooresville, Farmington, Fork Church, Mocksville, Advance, Hickory, Newton, St. Stephens, Salisbury, Kings Creek, Lenoir, Sawmills, Granite Falls, Morganton, Pleasant Grove, Valdese, Marion, Nebo, Dysartsville, Fero, and Glenwood 810 PM EDT Sat Mar 24 2018 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Sleet and freezing rain. Sleet accumulations up to a quarter inch and ice accumulations of a trace to one tenth inch are expected. * WHERE...The northern foothills and piedmont and western North Carolina. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The sleet and ice will result in very slippery conditions on sidewalks, roads and bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of sleet or freezing rain will cause travel difficulties. Expect slippery roads. Slow down and use caution while driving. Please report sleet and ice accumulations by calling the National Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message with your observation and the specific location where it occurred. You can also post your report to National Weather Service Greenville Spartanburg Facebook or tweet your report using hashtag nwsgsp. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/gsp. && $$ NCZ501-503-505-250815- /O.CON.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Caldwell Mountains-Burke Mountains-McDowell Mountains- Including the cities of Patterson, Jonas Ridge, Ashford, Sugar Hill, Woodlawn, and Old Fort 810 PM EDT Sat Mar 24 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Freezing rain. Additional ice accumulations of around one tenth are expected. * WHERE...Caldwell Mountains, Burke Mountains and McDowell Mountains Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The ice will result in difficult travel conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of freezing rain will cause travel difficulties. Expect slippery roads. Slow down and use caution while driving. 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. && $$ NCZ053-250815- /O.CON.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Buncombe- 810 PM EDT Sat Mar 24 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EDT SUNDAY ABOVE 3500 FEET... * WHAT...Freezing rain. Additional ice accumulations of are expected. * WHERE...Buncombe County. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The ice will result in very slippery conditions on sidewalks, roads and bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of freezing rain will cause travel difficulties. Expect slippery roads. Slow down and use caution while driving. Please report snow and ice accumulations by calling the National Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message with your observation and the specific location where it occurred. You can also post your report to National Weather Service Greenville Spartanburg Facebook or tweet your report using hashtag nwsgsp. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/gsp. && $$ Krentz
003 WWUS42 KGSP 250356 WSWGSP URGENT - WINTER WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 1156 PM EDT Sat Mar 24 2018 ...A MIX OF SNOW...SLEET...AND FREEZING RAIN EXPECTED ACROSS PORTIONS OF THE WESTERN NORTH CAROLINA THROUGH TONIGHT... NCZ035>037-056-057-501>506-251200- /O.UPG.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ /O.EXA.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ Alexander-Iredell-Davie-Catawba-Rowan-Caldwell Mountains- Greater Caldwell-Burke Mountains-Greater Burke-McDowell Mountains- Eastern McDowell- Including the cities of Bethlehem, Ellendale, Millersville, Taylorsville, Hiddenite, Stony Point, Statesville, Mooresville, Farmington, Fork Church, Mocksville, Advance, Hickory, Newton, St. Stephens, Salisbury, Patterson, Kings Creek, Lenoir, Sawmills, Granite Falls, Jonas Ridge, Morganton, Pleasant Grove, Valdese, Ashford, Sugar Hill, Woodlawn, Old Fort, Marion, Nebo, Dysartsville, Fero, and Glenwood 1156 PM EDT Sat Mar 24 2018 ...WINTER STORM WARNING IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Snow and sleet accumulations of 2 to 4 inches possible, especially north of interstate 40. Freezing rain may mix in at times as well, with a light glaze of ice possible. * WHERE...Portions of piedmont and western North Carolina. * WHEN...Most of the snow will fall during the next few hours, then taper off. Warning goes until noon EDT Sunday. * ADDITIONAL DETAILS...The snow and ice will result in difficult travel conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow, sleet, and ice will make travel very hazardous or impossible. 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. && $$ NCZ033-049-050-251200- /O.CON.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ Avery-Yancey-Mitchell- Including the cities of Ingalls, Banner Elk, Newland, Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, and Poplar 1156 PM EDT Sat Mar 24 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EDT SUNDAY... * WHAT...Significant icing. Additional ice accumulations of around two tenths are expected. * WHERE...Avery, Yancey and Mitchell Counties. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The ice will result in difficult travel conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of ice will make travel very hazardous or impossible. Please report snow and ice accumulations by calling the National Weather Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message with your observation and the specific location where it occurred. You can also post your report to National Weather Service Greenville Spartanburg Facebook or tweet your report using hashtag nwsgsp. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can be found at www.weather.gov/gsp. && $$ NCZ053-251200- /O.CON.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Buncombe- 1156 PM EDT Sat Mar 24 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EDT SUNDAY ABOVE 3500 FEET... * WHAT...Freezing rain. Additional ice accumulations of are expected. * WHERE...Buncombe County. * WHEN...Until noon EDT Sunday. * ADDITIONAL DETAILS...The ice will result in very slippery conditions on sidewalks, roads and bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of freezing rain will cause travel difficulties. Expect slippery roads. Slow down and use caution while driving. 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. && $$ ARK
861 WWUS42 KGSP 250811 WSWGSP URGENT - WINTER WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 411 AM EDT Sun Mar 25 2018 ...Wintry precipitation tapering off across western North Carolina early this morning... .Drier air is starting to work in from the north; therefore, precipitation coverage and rates will decrease through daybreak. Very little, if any, additional ice or snow accumulation is expected across the Northern Mountains or I-40 corridor. NCZ033-035>037-049-050-056-057-501>506-250915- /O.CAN.KGSP.WS.W.0004.000000T0000Z-180325T1600Z/ Avery-Alexander-Iredell-Davie-Yancey-Mitchell-Catawba-Rowan- Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke- McDowell Mountains-Eastern McDowell- 411 AM EDT Sun Mar 25 2018 ...WINTER STORM WARNING IS CANCELLED... Wintry precipitation has tapered off across the Northern Mountains and adjacent foothills and piedmont. Thus, the Winter Storm Warning has been cancelled. $$ NCZ053-250915- /O.CAN.KGSP.WW.Y.0014.000000T0000Z-180325T1600Z/ Buncombe- 411 AM EDT Sun Mar 25 2018 ...WINTER WEATHER ADVISORY IS CANCELLED... Wintry precipitation has tapered off across Buncombe County. Thus, the Winter Weather Advisory has been cancelled. $$ ARK
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 Mar 23, 3:14 PM EDT, 7 minutes earlier.
Area forecast discussion, Mar 23, 3:14 PM EDT, 7 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
314 PM EDT Fri Mar 23 2018
.SYNOPSIS...
Low-pressure from the west will move along a warm front draped
across the western Carolinas Saturday into Sunday bringing a wintry
mix for the northern mountains and cold light rain elsewhere.
Well below-normal temperatures will persist through Monday as strong
high pressure builds down the Appalachians. Temperatures rebound
back to near normal for mid- and late week as high pressure moves
offshore and moisture increases ahead of the next system.
&&
.NEAR TERM /THROUGH SATURDAY/...
As of 230 PM: Developing low pressure in the lee of the Rockies will
begin to move through the Plains late this aftn and evening. A warm
front will activate ahead of it, initially over the mid-Mississippi
Valley. The axis of a midlevel ridge will shift overhead tonight
as the warm front edges its way eastward, setting up from eastern
KY to the NC Piedmont by Saturday morning. However, weak upglide
will develop over our mountains well before dawn, and that is when
precip chances are expected to quickly increase. Unfortunately
it's not looking like the event will unfold in a straightforward
manner from that point. It looks likely that temperature profiles
will feature non-freezing values only in the sfc layer, supporting
generally rain or snow dependent on sfc temp at the start of the
event. The arrival of the warm front will gradually change that,
introducing a warm nose in the morning. While warm advection
generally should continue through the day, 850mb plots from
the NAM/GFS seem to reflect wet-bulb cooling for a time after
the onset of precip. Even the development of the warm nose thus
looks difficult to time. Furthermore, as CAD begins to develop, sfc
temps will remain cool across the northern mtns and NW NC Piedmont,
which will help maintain the possibility of wintry wx. As you can
see the p-type fcst is complicated.
For surface temps through the period, verification statistics from
the last 2 wedge events were used to choose which guidance members
to include in a blend. A non-diurnal trend is expected in parts
of the area due to wet-bulbing and the onset of CAD. Overall mins
tonight will be in the upper 20s to low 30s over higher elevations
of the mtns, with mid-upper 30s in the NC Piedmont, and lower 40s in
the Upstate. Most of WNC north of US 74 will see only a few degrees
of warming tomorrow, but areas south (including the SW NC valleys)
will warm comparatively well. However, only the very far southern
zones will see values even close to normal.
Initially deep saturation, the aforementioned isentropic forcing,
and any DPVA that results from a shortwave rounding the upper ridge
should combine to produce reasonably good QPF over the northern
mountains after midnight tonight. Snow ratios are expected to be
at or above normal at this time, though the midlevels will dry
during the day and ratios will taper off. Of course, by that time
snow is no longer likely to occur in many areas due to the warming
aloft. Using WPC QPF and the Top-Down technique to account for the
complex thermal profiles, warning criteria snowfall is expected to
occur between midnight and noon in Avery-Mitchell-Yancey and the
high elevations in NE Buncombe; a Winter Storm Warning will begin at
midnight in these areas. Some of the advertised accumulations will
include sleet that develops during the day. By afternoon nearly
all areas still with sufficiently cold temps will see IP/ZR. Ice
accumulation will then become the primary concern. A portion of
the area adjoining the warning will receive a Winter Wx Advisory
for lesser accumulations.
&&
.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
As of 215 PM EDT Friday: The forecast remains very complicated for
the short term, with continued wintry precip concerns especially for
the northern mountains. We begin the period at 00z Sunday with an
area of surface low pressure over the OH/MS River confluence, with a
warm front extending east and then wrapping around the mountains
with a bit of insitu damming against the Southern Appalachians. The
shortwave driving the surface low will continue to slowly be
absorbed by the longwave trough over New England and SE Canada as we
push into early Sun day, with the bulk of the moisture pushing
toward the coast. Upper ridging will develop up the MS Valley
resulting in an unusually strong area of upper confluence (between
it and the NE upper low) over the northern Mid-Atlantic states, and
the damming should morph into a very strong classical signature,
which should serve to push any lingering precip out of the way as
the wedge strengthens down the eastern slopes of the Appalachians
with very strong low-level dry air advection. Some lingering light
precip will remain across the SW mountains, NE GA, and extreme
southern Upstate but only very light at this time.
As always, however the devil is in the details. As we start the
period, very cold low-level temperatures can be expected, but with
strengthening WAA at 700mb, this leads to an impressive warm nose
across the area. The surface temperatures will then be the deciding
factor on rain vs. freezing rain overnight Saturday night. NAM
continues to be on the colder side with some very scary looking
soundings for KTNB, whereas the GFS keeps surface temperatures at or
just slightly above freezing. Near-term hires guidance that's coming
in for the beginning of the period however seems to also be on the
cool side, so have taken a general blend but the result is slightly
more in line with the cooler NAM than the warmer GFS. With the warm
nose in place aloft, that starts us out with some freezing rain at
the beginning of the period, and since this lines up with the
heavier QPF before the surface low pushes east, the 00z-06z period
Sunday could be dicey up in the northern mountains with a quick shot
of 1/4" ice. Pops will be on a rapid decline after 06z Sunday so do
not expect much in the way of additional accumulation thereafter,
but as temperatures drop, the wintry precip should spread SW into
the rest of the mountains with a complicated wintry mix of sleet and
even snow building in as the warm nose erodes. Of course, the
eroding warm nose (which in and of itself would lead to more of a
snow forecast) will compete with the drying aloft, which means we
lose moisture in the dendritic snow growth zone with no ice nuclei.
With only supercooled liquid to work with, light freezing drizzle or
ice pellets will likely be how the event ends as we push into Sunday
morning. With this, and in collaboration with the near-term
forecast, the upgraded Winter Storm Warning and Advisory will be
allowed to expire at the previous watch ending time of 15z Sunday,
but accumulating precip it may very well be over by sunrise.
With the very strong damming building in on Sunday, expect a very
cold and miserable day, a good 20 degrees below seasonal normals and
frankly even below normal for January (so much for astronomical
spring, much less meteorological...). Highs in the northern
mountains will be barely above freezing (so may or may not be able
to melt any wintry precip that falls), and expect a hard freeze in
the northern mountains Sunday night with at least 30s everywhere.
With lingering precip in the SW mountains, could see some continued
light wintry mix, and can't rule out that some trace accumulations
will be possible, but since Sunday night is 5th period, certainly
not worthy of any products at this time, though will keep (or add if
necessary) the winter weather wording in the HWO.
Expect a little recovery in temperatures on Monday (maybe getting
into the lower 50s across portions of the Piedmont), but still a
good 15 or so degrees below normal. GFS remains a little more robust
with the slug of moisture continuing along the warm/wedge front in
Georgia and have allowed pops to linger across the Upper Savannah
Valley, but nothing significant.
&&
.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
As of 245 PM Friday: The model guidance is still at odds early
next week with how much low level moisture will be entrained
from the Atlantic and moved over the top of the cold air damming
wedge across the forecast area Monday night and Tuesday, with the
GFS remaining the wetter solution. Still feel the need to remain
consistent with the dry ECMWF this far out in time, especially given
the expected strength of the sfc high to our NE and the expected
cold temps. Confidence doesn't get any better from mid-week onward
as the models also do not agree on where a significant slow moving
cold front will be strung out SW-to-NE as it runs up against the
upper ridge holding position along the southeast coast. The GFS is
just a bit more progressive with the upper pattern so naturally it
brings the leading edge of the wide precip band associated with
the front over the mtns on Wednesday, then laying it down across
the region on Thursday, and moving it east on Friday later in the
day. Meanwhile, the ECMWF keeps the boundary farther off to the
west. The fcst reflects a blend of the two with a trend toward the
GFS because of the expected moisture transport from a wide-open
Gulf of Mexico after Wednesday. Confidence sort of goes up for the
end of the week as the ECMWF also shows the front coming thru on
Friday, so the fairly high chance late Thursday night and Friday
feels more certain. The trend of the GFS is for less in the way
of instability, so thoughts of severe weather with this system
are put on a back burner for the time being. Excessive rain would
appear to be the bigger threat, but until more of an indication of
a tropical connection is seen in the guidance, we will not raise
any expectations. Temps were nudged downward about a category or
so mid-week owing to the greater cloud cover and precip coverage,
but still come back above normal for the end of the period.
&&
.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
At KCLT and elsewhere: Conditions will be VFR until tomorrow
morning, when warm frontal activation over the area will permit
precip to develop overnight, and ceilings to subsequently
lower. None of the TAF sites are expected to see wintry wx, but
areas of the mtns and NC Piedmont (particularly north of KAVL/KHKY)
are not out of the woods. Cigs are progged to continue lowering
as precip continues into Saturday. Development of CAD Sat aftn
looks to lock in LIFR over KHKY and other northern Piedmont sites,
though the chance of this occurring before the end of the TAF
period precludes its inclusion in this set. Right now it appears
the IFR/LIFR will remain north of KCLT until after 00z Sun.
Outlook: Elevated precipitation chances and periodic flight
restrictions will occur this weekend with another approaching low
pressure system. Cool and dry high pressure will try to build in
from the north early next week.
Confidence Table...
19-01Z 01-07Z 07-13Z 13-18Z
KCLT High 100% High 100% High 100% High 85%
KGSP High 100% High 100% High 100% High 84%
KAVL High 100% High 100% High 83% High 82%
KHKY High 100% High 100% High 100% Med 76%
KGMU High 100% High 100% High 100% High 80%
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 and ensemble forecasts
are available at the following link:
www.weather.gov/gsp/aviation
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...Winter Weather Advisory from midnight tonight to noon EDT
Sunday for NCZ048-501-503-505.
Winter Storm Warning from midnight tonight to noon EDT Sunday
for NCZ033-049-050.
SC...None.
&&
SYNOPSIS...JMP
NEAR TERM...Wimberley
SHORT TERM...TDP
LONG TERM...PM
AVIATION...WimberleyHazardous weather outlook, Mar 23, 4:46 AM EDT, 10 hours 35 minutes before
Hazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 446 AM EDT Fri Mar 23 2018 NCZ033-049-050-240900- Avery-Yancey-Mitchell- 446 AM EDT Fri Mar 23 2018 ...WINTER STORM WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY MORNING... This Hazardous Weather Outlook is for western North Carolina. .DAY ONE...Today and Tonight. A Special Weather Statement has been issued regarding slippery roads around the region for tonight due to the recent snowfall. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. ..Saturday...Winter storm possible. Moisture moves in ahead of a low pressure system. Cold air in place will cause the precipitation to fall as snow or a wintry mix. Significant accumulations are possible. ..Sunday...Winter storm possible. ..Monday...No hazardous weather is expected at this time. ..Tuesday...No hazardous weather is expected at this time. ..Wednesday...No hazardous weather is expected at this time. ..Thursday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... None. NCZ048-051>053-058-059-062-063-240900- Madison-Swain-Haywood-Buncombe-Graham-Northern Jackson-Macon- Southern Jackson- 446 AM EDT Fri Mar 23 2018 This Hazardous Weather Outlook is for western North Carolina. .DAY ONE...Today and Tonight. A Special Weather Statement has been issued regarding slippery roads around the region for tonight due to the recent snowfall. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. ..Saturday...Winter weather possible. Moisture moves in ahead of a low pressure system. Cold air in place will cause the precipitation to fall as snow or a wintry mix. Light accumulations are possible, mainly across the higher elevations. ..Sunday...Winter weather possible. ..Monday...No hazardous weather is expected at this time. ..Tuesday...No hazardous weather is expected at this time. ..Wednesday...No hazardous weather is expected at this time. ..Thursday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... None. NCZ035>037-056-057-501>506-240900- Alexander-Iredell-Davie-Catawba-Rowan-Caldwell Mountains- Greater Caldwell-Burke Mountains-Greater Burke-McDowell Mountains- Eastern McDowell- 446 AM EDT Fri Mar 23 2018 This Hazardous Weather Outlook is for piedmont North Carolina and western North Carolina. .DAY ONE...Today and Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. ..Saturday...Winter weather possible. Moisture moves in ahead of a low pressure system. Cold air in place may cause the precipitation to fall as a wintry mix during the evening. Light accumulations are possible. ..Sunday...Winter weather possible. The wintry mix may continue through the morning. ..Monday...No hazardous weather is expected at this time. ..Tuesday...No hazardous weather is expected at this time. ..Wednesday...No hazardous weather is expected at this time. ..Thursday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... None. GAZ010-017-018-026-028-029-NCZ064-065-068>072-082-507>510-SCZ001>014- 019-240900- Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Transylvania-Henderson- Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union- 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-Chester-Greenwood- 446 AM EDT Fri Mar 23 2018 This Hazardous Weather Outlook is for northeast Georgia, piedmont North Carolina, western North Carolina and upstate South Carolina. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. ..Saturday...No hazardous weather is expected at this time. ..Sunday...No hazardous weather is expected at this time. ..Monday...No hazardous weather is expected at this time. ..Tuesday...No hazardous weather is expected at this time. ..Wednesday...No hazardous weather is expected at this time. ..Thursday...No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... None.
In the hours before
Local storm report, Mar 23, 11:05 AM EDT, 4 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1105 AM EDT FRI MAR 23 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0812 PM SNOW 2 NNE WOLF LAUREL 35.98N 82.50W
03/21/2018 M9.0 INCH YANCEY NC PUBLIC
ELEVATION 4360 FT.
&&
CORRECTED REMARKS
JMPThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 4:30 AM EDT | Winter Storm Watch | GSP | Avery, Mitchell, Yancey | 11 hr |
| Mar 23, 3:21 PM EDT | Winter Weather Advisory | GSP | Alexander, Buncombe, Burke, Caldwell, Catawba, Davie and 4 more | 37 hr |
Nearby
Winter Storm Warnings in North Carolina, 2018Every winter storm warning in 2018
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.