Alert archive / South Carolina / Freeze Warnings in 2021

Freeze Warning 1, NWS Greenville-Spartanburg, SC

April 1, 20218 counties in South Carolina; 4 counties in Georgia; 8 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this freeze warning at Apr 1, 2021, 3:27 AM EDT for 8 counties in South Carolina; 4 counties in Georgia; 8 counties in North Carolina. It took effect at Apr 2, 2021, 12:00 AM EDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 1, 2021, 3:27 AM EDT (07:27 UTC)
In effect from
Apr 2, 2021, 12:00 AM EDT
Expired
Apr 2, 2021, 9:00 AM EDT
In force
9 hr
Issued by
NWS Greenville-Spartanburg, SC

Counties Elbert County, GA, Franklin County, GA, Hart County, GA, Stephens County, GA, Cabarrus County, NC, Cleveland County, NC, Gaston County, NC, Lincoln County, NC, Mecklenburg County, NC, Polk County, NC, Rutherford County, NC, Union County, NC, Abbeville County, SC, Anderson County, SC, Cherokee County, SC, Chester County, SC, Greenwood County, SC, Laurens County, SC, Union County, SC, York County, SC

The radar

The Greer radar (KGSP), 34 km from the middle of the area, began a volume at 07:28 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 7.5 hours before the alert went out and 225 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2021-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2021-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
944 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

117 
WWUS72 KGSP 010727
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
327 AM EDT Thu Apr 1 2021

GAZ018-026-028-029-NCZ068>072-082-508-510-SCZ004>014-019-011530-
/O.UPG.KGSP.FZ.A.0001.210402T0600Z-210402T1300Z/
/O.NEW.KGSP.FZ.W.0001.210402T0400Z-210402T1300Z/
Stephens-Franklin-Hart-Elbert-Cleveland-Lincoln-Gaston-
Mecklenburg-Cabarrus-Union NC-Greater Rutherford-Eastern Polk-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-
Greenwood-
Including the cities of Boydville, Toccoa, Royston, Gumlog, 
Lavonia, Franklin Springs, Canon, Hartwell, Nuberg, Reed Creek, 
Elberton, Fortsonia, Middleton, Ruckersville, Shelby, 
Kings Mountain, Lincolnton, Crouse, Gastonia, Charlotte, Concord,
Kannapolis, Monroe, Trinity, Indian Trail, Weddington, 
Forest City, Rutherfordton, Spindale, Tryon, Columbus, 
Mill Spring, Seneca, Oakway, Easley, Dacusville, Clemson, 
Greenville, Taylors, Greer, Mauldin, Fork Shoals, Simpsonville, 
Berea, Spartanburg, Gaffney, Catawba, Rock Hill, Anderson, 
Abbeville, Calhoun Falls, Laurens, Clinton, Union, Monarch Mills,
Chester, Cornwell, Great Falls, Ware Shoals, and Ninety Six
327 AM EDT Thu Apr 1 2021

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
FRIDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Portions of Upstate South Carolina, northeast Georgia
  and the foothills and Piedmont of North Carolina.

* WHEN...From midnight tonight to 9 AM EDT Friday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NCZ033-049-050-053-065-501-503-505-507-509-SCZ003-011530-
/O.CON.KGSP.WI.Y.0007.000000T0000Z-210402T0000Z/
Avery-Yancey-Mitchell-Buncombe-Henderson-Caldwell Mountains-
Burke Mountains-McDowell Mountains-Rutherford Mountains-
Polk Mountains-Greenville Mountains-
Including the cities of Ingalls, Banner Elk, Newland, Swiss, 
Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, 
Poplar, Asheville, Hendersonville, Fletcher, Dana, 
East Flat Rock, Tuxedo, Etowah, Jonas Ridge, Ashford, Woodlawn, 
Old Fort, Chimney Rock State Park, Saluda, Tigerville, 
Gowensville, Cleveland, and Slater-Marietta
327 AM EDT Thu Apr 1 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...Northwest winds 15 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of Upstate South Carolina and western North 
  Carolina, mainly along and near the Blue Ridge Escarpment.

* WHEN...Now through 8 PM EDT Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Some light snow may fall at the highest
  elevations of the northern mountains of North Carolina, mainly
  above 5000 feet, through this afternoon. Any accumulation should
  be less than one inch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

GAZ010-017-NCZ048-051-052-058-059-062>064-SCZ001-002-011530-
/O.CON.KGSP.WI.Y.0007.000000T0000Z-210401T1800Z/
Rabun-Habersham-Madison-Swain-Haywood-Graham-Northern Jackson-
Macon-Southern Jackson-Transylvania-Oconee Mountains-
Pickens Mountains-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Cornelia, Demorest, Clarkesville, Hollywood, Faust, Mars Hill, 
Marshall, Walnut, Allenstand, Hot Springs, Luck, Alarka, Almond, 
Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, 
Cruso, Cove Creek, Robbinsville, Stecoah, Cullowhee, Tuckasegee, 
Sylva, Franklin, Rainbow Springs, Kyle, Highlands, Wolf Mountain,
Cashiers, Brevard, Cedar Mountain, Little River, Mountain Rest, 
Walhalla, and Pumpkintown
327 AM EDT Thu Apr 1 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON...

* WHAT...Northwest winds 15 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of upstate South Carolina, northeast Georgia 
  and western North Carolina.

* WHEN...Now through 2 PM EDT Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Some light snow is possible at the highest
  elevations of the Smokies through early afternoon. Any
  accumulation should be an inch or less.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

PM
5 follow-up statements
759 
WWUS72 KGSP 011449
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
1049 AM EDT Thu Apr 1 2021

GAZ018-026-028-029-NCZ068>072-082-508-510-SCZ004>014-019-020030-
/O.CON.KGSP.FZ.W.0001.210402T0400Z-210402T1300Z/
Stephens-Franklin-Hart-Elbert-Cleveland-Lincoln-Gaston-
Mecklenburg-Cabarrus-Union NC-Greater Rutherford-Eastern Polk-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-
Greenwood-
Including the cities of Boydville, Toccoa, Royston, Gumlog, 
Lavonia, Franklin Springs, Canon, Hartwell, Nuberg, Reed Creek, 
Elberton, Fortsonia, Middleton, Ruckersville, Shelby, 
Kings Mountain, Lincolnton, Crouse, Gastonia, Charlotte, Concord,
Kannapolis, Monroe, Trinity, Indian Trail, Weddington, 
Forest City, Rutherfordton, Spindale, Tryon, Columbus, 
Mill Spring, Seneca, Oakway, Easley, Dacusville, Clemson, 
Greenville, Taylors, Greer, Mauldin, Fork Shoals, Simpsonville, 
Berea, Spartanburg, Gaffney, Catawba, Rock Hill, Anderson, 
Abbeville, Calhoun Falls, Laurens, Clinton, Union, Monarch Mills,
Chester, Cornwell, Great Falls, Ware Shoals, and Ninety Six
1049 AM EDT Thu Apr 1 2021

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
EDT FRIDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Portions of Upstate South Carolina, northeast Georgia 
  and the foothills and Piedmont of North Carolina.

* WHEN...From midnight tonight to 9 AM EDT Friday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NCZ033-049-050-053-065-501-503-505-507-509-SCZ003-020030-
/O.EXT.KGSP.WI.Y.0007.000000T0000Z-210402T0300Z/
Avery-Yancey-Mitchell-Buncombe-Henderson-Caldwell Mountains-
Burke Mountains-McDowell Mountains-Rutherford Mountains-
Polk Mountains-Greenville Mountains-
Including the cities of Ingalls, Banner Elk, Newland, Swiss, 
Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, 
Poplar, Asheville, Hendersonville, Fletcher, Dana, 
East Flat Rock, Tuxedo, Etowah, Jonas Ridge, Ashford, Woodlawn, 
Old Fort, Chimney Rock State Park, Saluda, Tigerville, 
Gowensville, Cleveland, and Slater-Marietta
1049 AM EDT Thu Apr 1 2021

...WIND ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING...

* WHAT...Northwest winds 15 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of Upstate South Carolina and western North 
  Carolina, mainly along and near the Blue Ridge Escarpment.

* WHEN...Until 11 PM EDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Some light snow may fall at the highest
  elevations of the northern mountains of North Carolina, mainly
  above 5000 feet, through early this evening. Any accumulation 
  should be less than one inch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

GAZ010-017-NCZ048-051-052-058-059-062>064-SCZ001-002-011800-
/O.CON.KGSP.WI.Y.0007.000000T0000Z-210401T1800Z/
Rabun-Habersham-Madison-Swain-Haywood-Graham-Northern Jackson-
Macon-Southern Jackson-Transylvania-Oconee Mountains-
Pickens Mountains-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Cornelia, Demorest, Clarkesville, Hollywood, Faust, Mars Hill, 
Marshall, Walnut, Allenstand, Hot Springs, Luck, Alarka, Almond, 
Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, 
Cruso, Cove Creek, Robbinsville, Stecoah, Cullowhee, Tuckasegee, 
Sylva, Franklin, Rainbow Springs, Kyle, Highlands, Wolf Mountain,
Cashiers, Brevard, Cedar Mountain, Little River, Mountain Rest, 
Walhalla, and Pumpkintown
1049 AM EDT Thu Apr 1 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON...

* WHAT...Northwest winds 15 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of upstate South Carolina, northeast Georgia 
  and western North Carolina.

* WHEN...Now through 2 PM EDT Thursday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Some light snow is possible at the 
  highest elevations of the Smokies through early afternoon. Any 
  accumulation should be an inch or less.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
415 
WWUS72 KGSP 011757
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
157 PM EDT Thu Apr 1 2021

GAZ010-017-NCZ048-051-052-058-059-062>064-SCZ001-002-011900-
/O.EXP.KGSP.WI.Y.0007.000000T0000Z-210401T1800Z/
Rabun-Habersham-Madison-Swain-Haywood-Graham-Northern Jackson-
Macon-Southern Jackson-Transylvania-Oconee Mountains-
Pickens Mountains-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Cornelia, Demorest, Clarkesville, Hollywood, Faust, Mars Hill, 
Marshall, Walnut, Allenstand, Hot Springs, Luck, Alarka, Almond, 
Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, 
Cruso, Cove Creek, Robbinsville, Stecoah, Cullowhee, Tuckasegee, 
Sylva, Franklin, Rainbow Springs, Kyle, Highlands, Wolf Mountain,
Cashiers, Brevard, Cedar Mountain, Little River, Mountain Rest, 
Walhalla, and Pumpkintown
157 PM EDT Thu Apr 1 2021

...WIND ADVISORY WILL EXPIRE AT 2 PM EDT THIS AFTERNOON...

Winds have fallen below advisory levels. However, breezy
conditions will continue into at least this evening.

$$

GAZ018-026-028-029-NCZ068>072-082-508-510-SCZ004>014-019-020300-
/O.CON.KGSP.FZ.W.0001.210402T0400Z-210402T1300Z/
Stephens-Franklin-Hart-Elbert-Cleveland-Lincoln-Gaston-
Mecklenburg-Cabarrus-Union NC-Greater Rutherford-Eastern Polk-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-
Greenwood-
Including the cities of Boydville, Toccoa, Royston, Gumlog, 
Lavonia, Franklin Springs, Canon, Hartwell, Nuberg, Reed Creek, 
Elberton, Fortsonia, Middleton, Ruckersville, Shelby, 
Kings Mountain, Lincolnton, Crouse, Gastonia, Charlotte, Concord,
Kannapolis, Monroe, Trinity, Indian Trail, Weddington, 
Forest City, Rutherfordton, Spindale, Tryon, Columbus, 
Mill Spring, Seneca, Oakway, Easley, Dacusville, Clemson, 
Greenville, Taylors, Greer, Mauldin, Fork Shoals, Simpsonville, 
Berea, Spartanburg, Gaffney, Catawba, Rock Hill, Anderson, 
Abbeville, Calhoun Falls, Laurens, Clinton, Union, Monarch Mills,
Chester, Cornwell, Great Falls, Ware Shoals, and Ninety Six
157 PM EDT Thu Apr 1 2021

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
EDT FRIDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Portions of Upstate South Carolina, northeast Georgia 
  and the foothills and Piedmont of North Carolina.

* WHEN...From midnight tonight to 9 AM EDT Friday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

NCZ033-049-050-053-065-501-503-505-507-509-SCZ003-020300-
/O.CON.KGSP.WI.Y.0007.000000T0000Z-210402T0300Z/
Avery-Yancey-Mitchell-Buncombe-Henderson-Caldwell Mountains-
Burke Mountains-McDowell Mountains-Rutherford Mountains-
Polk Mountains-Greenville Mountains-
Including the cities of Ingalls, Banner Elk, Newland, Swiss, 
Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, 
Poplar, Asheville, Hendersonville, Fletcher, Dana, 
East Flat Rock, Tuxedo, Etowah, Jonas Ridge, Ashford, Woodlawn, 
Old Fort, Chimney Rock State Park, Saluda, Tigerville, 
Gowensville, Cleveland, and Slater-Marietta
157 PM EDT Thu Apr 1 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING...

* WHAT...Northwest winds 15 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of Upstate South Carolina and western North 
  Carolina, mainly along and near the Blue Ridge Escarpment.

* WHEN...Until 11 PM EDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Some light snow may fall at the highest 
  elevations of the northern mountains of North Carolina, mainly 
  above 5000 feet, through early this evening. Any accumulation 
  should be less than one inch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

RMM
961 
WWUS72 KGSP 020235
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
1035 PM EDT Thu Apr 1 2021

NCZ033-049-050-053-065-501-503-505-507-509-SCZ003-020345-
/O.EXP.KGSP.WI.Y.0007.000000T0000Z-210402T0300Z/
Avery-Yancey-Mitchell-Buncombe-Henderson-Caldwell Mountains-
Burke Mountains-McDowell Mountains-Rutherford Mountains-
Polk Mountains-Greenville Mountains-
Including the cities of Ingalls, Banner Elk, Newland, Swiss, 
Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, 
Poplar, Asheville, Hendersonville, Fletcher, Dana, 
East Flat Rock, Tuxedo, Etowah, Jonas Ridge, Ashford, Woodlawn, 
Old Fort, Chimney Rock State Park, Saluda, Tigerville, 
Gowensville, Cleveland, and Slater-Marietta
1035 PM EDT Thu Apr 1 2021

...WIND ADVISORY WILL EXPIRE AT 11 PM EDT THIS EVENING...

Wind speeds and gusts have dropped below advisory criteria.
However, breezy conditions and gusty winds will continue 
overnight.

$$

GAZ018-026-028-029-NCZ068>072-082-508-510-SCZ004>014-019-021045-
/O.CON.KGSP.FZ.W.0001.210402T0400Z-210402T1300Z/
Stephens-Franklin-Hart-Elbert-Cleveland-Lincoln-Gaston-
Mecklenburg-Cabarrus-Union NC-Greater Rutherford-Eastern Polk-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-
Greenwood-
Including the cities of Boydville, Toccoa, Royston, Gumlog, 
Lavonia, Franklin Springs, Canon, Hartwell, Nuberg, Reed Creek, 
Elberton, Fortsonia, Middleton, Ruckersville, Shelby, 
Kings Mountain, Lincolnton, Crouse, Gastonia, Charlotte, Concord,
Kannapolis, Monroe, Trinity, Indian Trail, Weddington, 
Forest City, Rutherfordton, Spindale, Tryon, Columbus, 
Mill Spring, Seneca, Oakway, Easley, Dacusville, Clemson, 
Greenville, Taylors, Greer, Mauldin, Fork Shoals, Simpsonville, 
Berea, Spartanburg, Gaffney, Catawba, Rock Hill, Anderson, 
Abbeville, Calhoun Falls, Laurens, Clinton, Union, Monarch Mills,
Chester, Cornwell, Great Falls, Ware Shoals, and Ninety Six
1035 PM EDT Thu Apr 1 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT FRIDAY...

* WHAT...Sub-freezing temperatures as low as 27 expected.

* WHERE...The foothills and Piedmont Upstate South Carolina, and
  northeast Georgia, and the southern foothills and Piedmont of 
  North Carolina.

* WHEN...Until 9 AM EDT Friday.

* IMPACTS...Freeze conditions will kill crops, other sensitive 
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
334 
WWUS72 KGSP 020657
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
257 AM EDT Fri Apr 2 2021

GAZ018-026-028-029-NCZ068>072-082-508-510-SCZ004>014-019-021300-
/O.CON.KGSP.FZ.W.0001.000000T0000Z-210402T1300Z/
Stephens-Franklin-Hart-Elbert-Cleveland-Lincoln-Gaston-
Mecklenburg-Cabarrus-Union NC-Greater Rutherford-Eastern Polk-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-
Greenwood-
Including the cities of Boydville, Toccoa, Royston, Gumlog, 
Lavonia, Franklin Springs, Canon, Hartwell, Nuberg, Reed Creek, 
Elberton, Fortsonia, Middleton, Ruckersville, Shelby, 
Kings Mountain, Lincolnton, Crouse, Gastonia, Charlotte, Concord,
Kannapolis, Monroe, Trinity, Indian Trail, Weddington, 
Forest City, Rutherfordton, Spindale, Tryon, Columbus, 
Mill Spring, Seneca, Oakway, Easley, Dacusville, Clemson, 
Greenville, Taylors, Greer, Mauldin, Fork Shoals, Simpsonville, 
Berea, Spartanburg, Gaffney, Catawba, Rock Hill, Anderson, 
Abbeville, Calhoun Falls, Laurens, Clinton, Union, Monarch Mills,
Chester, Cornwell, Great Falls, Ware Shoals, and Ninety Six
257 AM EDT Fri Apr 2 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 27 expected.

* WHERE...The foothills and Piedmont Upstate South Carolina, and 
  northeast Georgia, and the southern foothills and Piedmont of 
  North Carolina.

* WHEN...Until 9 AM EDT Friday.

* IMPACTS...Freeze conditions will kill crops, other sensitive 
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

Krentz
856 
WWUS72 KGSP 021303
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
903 AM EDT Fri Apr 2 2021

GAZ018-026-028-029-NCZ068>072-082-508-510-SCZ004>014-019-022000-
/O.EXP.KGSP.FZ.W.0001.000000T0000Z-210402T1300Z/
/O.NEW.KGSP.FZ.W.0002.210403T0400Z-210403T1300Z/
Stephens-Franklin-Hart-Elbert-Cleveland-Lincoln-Gaston-
Mecklenburg-Cabarrus-Union NC-Greater Rutherford-Eastern Polk-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-
Greenwood-
Including the cities of Boydville, Toccoa, Royston, Gumlog, 
Lavonia, Franklin Springs, Canon, Hartwell, Nuberg, Reed Creek, 
Elberton, Fortsonia, Middleton, Ruckersville, Shelby, Kings 
Mountain, Lincolnton, Crouse, Gastonia, Charlotte, Concord, 
Kannapolis, Monroe, Trinity, Indian Trail, Weddington, Forest 
City, Rutherfordton, Spindale, Tryon, Columbus, Mill Spring, 
Seneca, Oakway, Easley, Dacusville, Clemson, Greenville, Taylors, 
Greer, Mauldin, Fork Shoals, Simpsonville, Berea, Spartanburg, 
Gaffney, Catawba, Rock Hill, Anderson, Abbeville, Calhoun Falls, 
Laurens, Clinton, Union, Monarch Mills, Chester, Cornwell, Great 
Falls, Ware Shoals, and Ninety Six
903 AM EDT Fri Apr 2 2021

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SATURDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Upstate South Carolina, northeast Georgia and the
  southern piedmont and southern foothills of North Carolina.

* WHEN...From midnight tonight to 9 AM EDT Saturday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

What forecasters said that day

The local office's own words before this freeze 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 freeze warning went out at Apr 1, 3:20 AM EDT, 7 minutes earlier.

Area forecast discussion, Apr 1, 3:20 AM EDT, 7 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
320 AM EDT Thu Apr 1 2021

.SYNOPSIS...
An unseasonably cold air mass will build into the area behind a
departing cold front today, and settle over the region for the rest
of the week. Expect an upper level ridge to build over the region
from Sunday into next week, continuing dry, but warmer weather. The
next rain maker will approach our region in the middle of next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 310 AM: There might be a few lingering sprinkles underneath
the last of the low clouds over the wrn Piedmont, but the
back edge of the low cloudiness should continue to make steady
eastward progress through the pre-dawn hours based on satellite
trends. Expect the clouds to clear the eastern zones well before
daybreak. Meanwhile, very little radar returns were noted over the
WNW flow upslope areas, but satellite imagery showed a few low
clouds drifting down from eastern KY, so a small chance of snow
showers was kept for the time being. The Wind Advisory appears to
be working out, with frequent gusts continuing across the mtns and
adjacent foothill/mtn zones. Otherwise, temp/dewpt trends will be
updated based on observations.

Cool Canadian high pressure will be the dominant weather feature
across the region for at least the next 24 hours. In spite
of the high pressure, we will still have some ongoing weather
concerns. Continued cold advection and pressure gradient across
the mtns should allow for deep enough mixing to tap into the
stronger N flow aloft through the daylight hours, so the Wind
Advisory will be maintained intact. The low level flow looks more
dry than previous guidance would indicate, meaning we have less
of a chance of generating as much upslope light snow showers on
the TN border today. Already low precip probs were dropped a bit
farther, so it is now looking like any snow accum would be isolated
at best. We might actually see a slight uptick this evening if the
NAM is correct, but even then it will be minimal. The main story
will continue to be the cool temps, more representative of early
February than early April. For tonight, in spite of a few tweaks,
the low temps are all below freezing across the entire fcst area,
so the Watch will be converted to a Freeze Warning with high
confidence. We might threaten some record min temps, but right
now it looks like the wind will prevent the radiational cooling
that we would need to make it down to record territory.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
As of 300 AM Thursday: A deep, sharp upper trough will push off the
Mid-Atlantic Coast Friday, as an upper ridge begins to build over
the Plains to the Midwest. At the sfc, Canadian high pressure will
dominate over the eastern CONUS, with the center roughly over the
Ohio Valley during the day. There will be enough pres grad over
the FA to keep conditions breezy, and combined with decent mixing
of very low dewpts, aftn RH will bottom out in the teens to low
20s across the area. This may result in elevated fire wx concerns,
especially if fuels dry out a lot today. Otherwise, Friday should
be sunny with highs about 15-20 deg below normal.

The center of the sfc high will settle right over the FA Friday
night, resulting in nearly ideal radiational cooling conditions
with light wind and clear skies. Confidence is high that temps
will fall into the 20s to lower 30s (similar lows to tonight). But
will hold off on issuing a Freeze Watch, since we are upgrading
a Freeze Watch to Freeze Warning for tonight.

The high will remain over the area Saturday, resulting in light
winds and sunny skies. Temps should rebound a couple categories
from Friday's highs, still 5-10 deg below normal. Min temps Saturday
night should also be not as cold, but we could have areas of frost
with lows in the 30s.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
As of 130 AM Thursday: A large dry area of high pressure will remain
centered over the southeastern CONUS Sunday, then become shunted
south over the Gulf of Mexico early next week. The upper level
flow should remain out of the NW, with an upper ridge persisting
over the central CONUS. So temps are expected to gradually warm
late this weekend into the middle of next week due to westerly
to northwesterly 850 mb flow atop the forecast area. High temps
should be near normal Sunday, warming to 8 to 10 degrees above
normal early next week. RH vales in the 30s are expected late this
weekend into early next week. Despite high pressure leading to light
winds during this time of low RH, fire weather could be a concern.

The next rain chances look to be perhaps Wednesday (per the 12z
ECMWF), or Thursday (per the 00z GFS), as a backdoor cold front
slides in and stalls out. Confidence is still low, given the model
disagreement, so will keep PoPs on the slight chc to low-end chc
range. Temps will remain above normal, even with the backdoor
front pushing in.

&&

.AVIATION /08Z THURSDAY THROUGH MONDAY/...
At KCLT and elsewhere: The last of the MVFR ceiling restrictions
should move east of KCLT in short order, so the TAF begins VFR,
but with a lingering bkn low cloud ceiling around 045. Satellite
imagery shows the back edge of the low cloud deck moving steadily
east, so it too should be long gone by daybreak. The only other
problems might be at KAVL where some low clouds may linger for
the next few hours in the valley. Otherwise, the strong N/NW
winds will be the main concern, with frequent gusts through at
least sunset at all terminals. We might see another VFR low cloud
ceiling moving down from the N and clipping KCLT this afternoon,
but the cloud base is expected to remain above 050. After sunset,
expect clear sky and wind gusts to diminish.

Outlook: VFR conditions expected for the next five days.

Confidence Table...

            07-13Z        13-19Z        19-01Z        01-06Z
KCLT       High 100%     High 100%     High 100%     High 100%
KGSP       High  99%     High 100%     High 100%     High 100%
KAVL       High 100%     High 100%     High 100%     High 100%
KHKY       High 100%     High 100%     High 100%     High 100%
KGMU       High  99%     High 100%     High 100%     High 100%
KAND       High 100%     High 100%     High 100%     High 100%

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

www.weather.gov/gsp/aviation

&&

.CLIMATE...
RECORDS FOR 04-02

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAVL      87 1946     41 1915     58 1945     25 1924
   KCLT      86 2014     42 1901     64 1945     28 1881
                2010
                1978
   KGSP      88 2012     49 1901     62 1979     26 1902

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...Wind Advisory until 2 PM EDT this afternoon for GAZ010-017.
     Freeze Warning from midnight tonight to 9 AM EDT Friday for
     GAZ018-026-028-029.
NC...Wind Advisory until 8 PM EDT this evening for NCZ033-049-050-
     053-065-501-503-505-507-509.
     Wind Advisory until 2 PM EDT this afternoon for NCZ048-051-052-
     058-059-062>064.
     Freeze Warning from midnight tonight to 9 AM EDT Friday for
     NCZ068>072-082-508-510.
SC...Wind Advisory until 8 PM EDT this evening for SCZ003.
     Wind Advisory until 2 PM EDT this afternoon for SCZ001-002.
     Freeze Warning from midnight tonight to 9 AM EDT Friday for
     SCZ004>014-019.

&&

SYNOPSIS...ARK
NEAR TERM...PM
SHORT TERM...ARK
LONG TERM...ARK
AVIATION...PM
CLIMATE...
Hazardous weather outlook, Mar 31, 11:03 PM EDT, 4 hours 24 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
1103 PM EDT Wed Mar 31 2021

GAZ018-026-028-029-NCZ068>072-082-508-510-SCZ004>014-019-020315-
Stephens-Franklin-Hart-Elbert-Cleveland-Lincoln-Gaston-Mecklenburg-
Cabarrus-Union NC-Greater Rutherford-Eastern Polk-Greater Oconee-
Greater Pickens-Greater Greenville-Spartanburg-Cherokee-York-
Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
1103 PM EDT Wed Mar 31 2021

...FREEZE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY
MORNING...

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

.DAY ONE...Tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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

   Freeze Watch.

.SPOTTER INFORMATION STATEMENT...

None.

GAZ010-017-NCZ048-051-052-058-059-062>064-SCZ001-002-020315-
Rabun-Habersham-Madison-Swain-Haywood-Graham-Northern Jackson-Macon-
Southern Jackson-Transylvania-Oconee Mountains-Pickens Mountains-
1103 PM EDT Wed Mar 31 2021

...WIND ADVISORY IN EFFECT UNTIL 2 PM EDT THURSDAY...

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

.DAY ONE...Tonight.

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

   Wind Advisory.

Scattered snow showers are expected with minor accumulations above
3500 ft near the Tennessee border.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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

   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ033-049-050-053-065-501-503-505-507-509-SCZ003-020315-
Avery-Yancey-Mitchell-Buncombe-Henderson-Caldwell Mountains-
Burke Mountains-McDowell Mountains-Rutherford Mountains-
Polk Mountains-Greenville Mountains-
1103 PM EDT Wed Mar 31 2021

...WIND ADVISORY IN EFFECT UNTIL 8 PM EDT THURSDAY...

This Hazardous Weather Outlook is for western North Carolina and
upstate South Carolina.

.DAY ONE...Tonight.

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

   Wind Advisory.

Scattered snow showers are expected with minor accumulations above
3500 ft near the Tennessee border.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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

   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ035>037-056-057-502-504-506-020315-
Alexander-Iredell-Davie-Catawba-Rowan-Greater Caldwell-Greater Burke-
Eastern McDowell-
1103 PM EDT Wed Mar 31 2021

This Hazardous Weather Outlook is for piedmont North Carolina and
western North Carolina.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

Nearby

Freeze Warnings in South Carolina, 2021Freeze Warnings in North Carolina, 2021Freeze Warnings in Georgia, 2021Every freeze warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.