Alert archive / North Carolina / Freeze Watches in 2021

Freeze Watch 2, NWS Greenville-Spartanburg, SC

April 20, 202118 counties in North Carolina; Rabun County, Georgia

NWS Greenville-Spartanburg, SC issued this freeze watch at Apr 20, 2021, 3:28 AM EDT for 18 counties in North Carolina; Rabun County, Georgia. It took effect at Apr 22, 2021, 12:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 20, 2021, 3:28 AM EDT (07:28 UTC)
In effect from
Apr 22, 2021, 12:00 AM EDT
Expired
Apr 21, 2021, 3:40 AM EDT
In force
Issued by
NWS Greenville-Spartanburg, SC

Counties Rabun County, GA, Alexander County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Caldwell County, NC, Graham County, NC, Haywood County, NC, Henderson County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mitchell County, NC, Polk County, NC, Rutherford County, NC, Swain County, NC, Transylvania County, NC, Yancey County, NC

The radar

The Greer radar (KGSP), 80 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 243 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 2021-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939587897117Sfc1 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
9 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
2320 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

483 
WWUS72 KGSP 200728
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
328 AM EDT Tue Apr 20 2021

GAZ010-NCZ033-048>053-058-059-062>065-501>507-509-SCZ001>003-
201600-
/O.NEW.KGSP.FZ.A.0002.210422T0400Z-210422T1300Z/
Rabun-Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham-
Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Polk Mountains-Oconee Mountains-Pickens Mountains-
Greenville Mountains-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Ingalls, Banner Elk, Newland, Faust, Mars Hill, Marshall, Walnut,
Allenstand, Hot Springs, Luck, Swiss, Burnsville, Celo, 
Micaville, Ramseytown, Busick, Spruce Pine, Poplar, Alarka, 
Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, 
Canton, Cruso, Cove Creek, Asheville, Robbinsville, Stecoah, 
Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, 
Highlands, Wolf Mountain, Cashiers, Brevard, Cedar Mountain, 
Little River, Hendersonville, Fletcher, Dana, East Flat Rock, 
Tuxedo, Etowah, Patterson, Kings Creek, Lenoir, Sawmills, 
Granite Falls, Jonas Ridge, Morganton, Pleasant Grove, Valdese, 
Ashford, Sugar Hill, Woodlawn, Old Fort, Marion, Nebo, 
Dysartsville, Fero, Glenwood, Chimney Rock State Park, Saluda, 
Mountain Rest, Walhalla, Pumpkintown, Tigerville, Gowensville, 
Cleveland, and Slater-Marietta
328 AM EDT Tue Apr 20 2021

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

* WHAT...Sub-freezing temperatures in the upper 20s to lower 30s
  will be possible.

* WHERE...The mountains of upstate South Carolina, Rabun County
  Georgia, and the mountains and northern foothills of North 
  Carolina.

* WHEN...From late Wednesday night through Thursday morning.

* IMPACTS...Frost and freeze conditions could 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.

&&

$$
4 follow-up statements
340 
WWUS72 KGSP 201515
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
1115 AM EDT Tue Apr 20 2021

GAZ010-NCZ033-048>053-058-059-062>065-501>507-509-SCZ001>003-
202000-
/O.CON.KGSP.FZ.A.0002.210422T0400Z-210422T1300Z/
Rabun-Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham-
Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Polk Mountains-Oconee Mountains-Pickens Mountains-
Greenville Mountains-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Ingalls, Banner Elk, Newland, Faust, Mars Hill, Marshall, Walnut,
Allenstand, Hot Springs, Luck, Swiss, Burnsville, Celo, 
Micaville, Ramseytown, Busick, Spruce Pine, Poplar, Alarka, 
Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, 
Canton, Cruso, Cove Creek, Asheville, Robbinsville, Stecoah, 
Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, 
Highlands, Wolf Mountain, Cashiers, Brevard, Cedar Mountain, 
Little River, Hendersonville, Fletcher, Dana, East Flat Rock, 
Tuxedo, Etowah, Patterson, Kings Creek, Lenoir, Sawmills, 
Granite Falls, Jonas Ridge, Morganton, Pleasant Grove, Valdese, 
Ashford, Sugar Hill, Woodlawn, Old Fort, Marion, Nebo, 
Dysartsville, Fero, Glenwood, Chimney Rock State Park, Saluda, 
Mountain Rest, Walhalla, Pumpkintown, Tigerville, Gowensville, 
Cleveland, and Slater-Marietta
1115 AM EDT Tue Apr 20 2021

...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY MORNING...

* WHAT...Sub-freezing temperatures in the upper 20s to lower 30s 
  will be possible.

* WHERE...The mountains of upstate South Carolina, Rabun County 
  Georgia, and the mountains and northern foothills of North 
  Carolina.

* WHEN...From late Wednesday night through Thursday morning.

* IMPACTS...Frost and freeze conditions could 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.

&&

$$

JMP
530 
WWUS72 KGSP 201932
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
332 PM EDT Tue Apr 20 2021

NCZ035-211000-
/O.EXA.KGSP.FZ.A.0002.210422T0400Z-210422T1300Z/
Alexander-
Including the cities of Bethlehem, Ellendale, Millersville, 
Taylorsville, Hiddenite, and Stony Point
332 PM EDT Tue Apr 20 2021

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

* WHAT...Near-freezing temperatures as low as 31 possible.

* WHERE...Alexander County.

* WHEN...From late Wednesday night through Thursday morning.

* IMPACTS...Frost and freeze conditions could 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.

&&

$$

GAZ010-NCZ033-048>053-058-059-062>065-501>507-509-SCZ001>003-
211000-
/O.CON.KGSP.FZ.A.0002.210422T0400Z-210422T1300Z/
Rabun-Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham-
Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Polk Mountains-Oconee Mountains-Pickens Mountains-
Greenville Mountains-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Ingalls, Banner Elk, Newland, Faust, Mars Hill, Marshall, Walnut,
Allenstand, Hot Springs, Luck, Swiss, Burnsville, Celo, 
Micaville, Ramseytown, Busick, Spruce Pine, Poplar, Alarka, 
Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, 
Canton, Cruso, Cove Creek, Asheville, Robbinsville, Stecoah, 
Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, 
Highlands, Wolf Mountain, Cashiers, Brevard, Cedar Mountain, 
Little River, Hendersonville, Fletcher, Dana, East Flat Rock, 
Tuxedo, Etowah, Patterson, Kings Creek, Lenoir, Sawmills, 
Granite Falls, Jonas Ridge, Morganton, Pleasant Grove, Valdese, 
Ashford, Sugar Hill, Woodlawn, Old Fort, Marion, Nebo, 
Dysartsville, Fero, Glenwood, Chimney Rock State Park, Saluda, 
Mountain Rest, Walhalla, Pumpkintown, Tigerville, Gowensville, 
Cleveland, and Slater-Marietta
332 PM EDT Tue Apr 20 2021

...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY MORNING...

* WHAT...Sub-freezing temperatures in the upper 20s to lower 30s 
  will be possible.

* WHERE...The mountains of upstate South Carolina, Rabun County 
  Georgia, and the mountains and northern foothills of North 
  Carolina.

* WHEN...From late Wednesday night through Thursday morning.

* IMPACTS...Frost and freeze conditions could 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.

&&

$$

JMP
190 
WWUS72 KGSP 210139
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
939 PM EDT Tue Apr 20 2021

GAZ010-NCZ033-035-048>053-058-059-062>065-501>507-509-SCZ001>003-
211000-
/O.CON.KGSP.FZ.A.0002.210422T0400Z-210422T1300Z/
Rabun-Avery-Alexander-Madison-Yancey-Mitchell-Swain-Haywood-
Buncombe-Graham-Northern Jackson-Macon-Southern Jackson-
Transylvania-Henderson-Caldwell Mountains-Greater Caldwell-
Burke Mountains-Greater Burke-McDowell Mountains-Eastern McDowell-
Rutherford Mountains-Polk Mountains-Oconee Mountains-
Pickens Mountains-Greenville Mountains-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Ingalls, Banner Elk, Newland, Bethlehem, Ellendale, Millersville,
Taylorsville, Hiddenite, Stony Point, Faust, Mars Hill, Marshall,
Walnut, Allenstand, Hot Springs, Luck, Swiss, Burnsville, Celo, 
Micaville, Ramseytown, Busick, Spruce Pine, Poplar, Alarka, 
Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, 
Canton, Cruso, Cove Creek, Asheville, Robbinsville, Stecoah, 
Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, 
Highlands, Wolf Mountain, Cashiers, Brevard, Cedar Mountain, 
Little River, Hendersonville, Fletcher, Dana, East Flat Rock, 
Tuxedo, Etowah, Patterson, Kings Creek, Lenoir, Sawmills, 
Granite Falls, Jonas Ridge, Morganton, Pleasant Grove, Valdese, 
Ashford, Sugar Hill, Woodlawn, Old Fort, Marion, Nebo, 
Dysartsville, Fero, Glenwood, Chimney Rock State Park, Saluda, 
Mountain Rest, Walhalla, Pumpkintown, Tigerville, Gowensville, 
Cleveland, and Slater-Marietta
939 PM EDT Tue Apr 20 2021

...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY MORNING...

* WHAT...Sub-freezing temperatures in the upper 20s to lower 30s 
  will be possible.

* WHERE...The mountains of upstate South Carolina, Rabun County 
  Georgia, and the mountains and northern foothills of North 
  Carolina.

* WHEN...From late Wednesday night through Thursday morning.

* IMPACTS...Frost and freeze conditions could 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
877 
WWUS72 KGSP 210740
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
340 AM EDT Wed Apr 21 2021

GAZ010-NCZ033-035-048>053-058-059-062>065-501>507-509-SCZ001>003-
211600-
/O.UPG.KGSP.FZ.A.0002.210422T0400Z-210422T1300Z/
/O.NEW.KGSP.FZ.W.0003.210422T0400Z-210422T1300Z/
Rabun-Avery-Alexander-Madison-Yancey-Mitchell-Swain-Haywood-
Buncombe-Graham-Northern Jackson-Macon-Southern Jackson-
Transylvania-Henderson-Caldwell Mountains-Greater Caldwell-
Burke Mountains-Greater Burke-McDowell Mountains-Eastern McDowell-
Rutherford Mountains-Polk Mountains-Oconee Mountains-
Pickens Mountains-Greenville Mountains-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Ingalls, Banner Elk, Newland, Bethlehem, Ellendale, Millersville,
Taylorsville, Hiddenite, Stony Point, Faust, Mars Hill, Marshall,
Walnut, Allenstand, Hot Springs, Luck, Swiss, Burnsville, Celo, 
Micaville, Ramseytown, Busick, Spruce Pine, Poplar, Alarka, 
Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, 
Canton, Cruso, Cove Creek, Asheville, Robbinsville, Stecoah, 
Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, 
Highlands, Wolf Mountain, Cashiers, Brevard, Cedar Mountain, 
Little River, Hendersonville, Fletcher, Dana, East Flat Rock, 
Tuxedo, Etowah, Patterson, Kings Creek, Lenoir, Sawmills, 
Granite Falls, Jonas Ridge, Morganton, Pleasant Grove, Valdese, 
Ashford, Sugar Hill, Woodlawn, Old Fort, Marion, Nebo, 
Dysartsville, Fero, Glenwood, Chimney Rock State Park, Saluda, 
Mountain Rest, Walhalla, Pumpkintown, Tigerville, Gowensville, 
Cleveland, and Slater-Marietta
340 AM EDT Wed Apr 21 2021

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

* WHAT...Sub-freezing temperatures in the mid 20s to lower 30s 
  expected.

* WHERE...Rabun county Georgia, the mountains of upstate South
  Carolina, and the mountains and foothills of North Carolina.

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

* 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.

&&

$$

GAZ017-NCZ036-037-056-057-068-069-508-510-211600-
/O.NEW.KGSP.FZ.W.0003.210422T0400Z-210422T1300Z/
Habersham-Iredell-Davie-Catawba-Rowan-Cleveland-Lincoln-
Greater Rutherford-Eastern Polk-
Including the cities of Cornelia, Demorest, Clarkesville, 
Hollywood, Statesville, Mooresville, Farmington, Fork Church, 
Mocksville, Advance, Hickory, Newton, St. Stephens, Salisbury, 
Shelby, Kings Mountain, Lincolnton, Crouse, Forest City, 
Rutherfordton, Spindale, Tryon, Columbus, and Mill Spring
340 AM EDT Wed Apr 21 2021

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

* WHAT...Sub-freezing temperatures in the lower 30s expected.

* WHERE...In Georgia, Habersham County. In North Carolina, 
  Iredell, Davie, Catawba, Rowan, Cleveland, Lincoln, Greater 
  Rutherford and Eastern Polk Counties.

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

* 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 watch 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 watch went out at Apr 20, 1:31 AM EDT, 1 hour 57 minutes earlier.

Area forecast discussion, Apr 20, 1:31 AM EDT, 1 hour 57 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
131 AM EDT Tue Apr 20 2021

.SYNOPSIS...
A nearly stationary front stretching from the central Gulf of
Mexico across central Florida to the western Atlantic will drift
further southeast away from our region.  A strong cold front crosses
the area Wednesday, with much below normal temperatures across the
region for a couple of days. A more significant low pressure may
cross our region Saturday and Saturday night.

&&

.NEAR TERM /THROUGH TODAY/...
As of 130 AM: Increasing cirrus across the area may slow cooling but
left low temps as is for now.

Otherwise, weak sfc high will drift over the area in the wake of
the departed shortwave and its associated coastal low. Somewhat
perturbed flow will continue aloft, with some vort maxes passing
across the Deep South ahead of the next wave near the Gulf
Coast. This looks to bring a few high level clouds across mainly
our southern zones, but otherwise it looks like decent radiational
cooling will occur. Morning mins will be a little below normal,
but too warm for frost except perhaps on high mountain ridges.

High pressure will set up off the East Coast by midday Tuesday,
putting us back into a return flow regime ahead of a synoptic-scale
trough and embedded shortwave over the mid-Mississippi Valley. This
will lead to rebounding temperatures (maxes generally 0-2 degrees
above normal) and enough moisture flux to keep dewpoints from
mixing out substantially. Nonetheless, a capping warm layer in
the midlevels looks to inhibit any deep convection, so we again
will forecast PoPs below slight-chance.

&&

.SHORT TERM /TONIGHT THROUGH THURSDAY/...
As of 2 PM Monday: the short-term forecast picks up at 00z on
Wednesday with broad upper trofing digging down over the Great
Lakes and Northern MS River Valley. The trof axis is expected to
pass just to our north late Wed into early Thursday as the base
of the trof flattens considerably and lingers to our north for
the rest of the period. At the sfc, a cold front associated with
the upper shortwave moves into the area. Moisture will be limited
despite the decent upper forcing, so precip chances will be higher
across the northern tier of the CWA where the moisture and forcing
better align. Any QPF amounts should be minimal. Highs will be
just below normal on Wednesday as the cold front crosses the area.
Frost/freeze conditions will be likely for for a good portion of
the CWA early Thursday, especially over the NC mountains as a
broad Canadian high and strong CAA builds in after the Wednesday
fropa. A sharp gradient aloft and a tight pressure gradient at
the sfc will produce very breezy conditions spreading from west
to east over the course of the day Wednesday. Winds will begin
to subside after sunset as the center of high pressure spreads
across the SE Wednesday night.

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
As of 145 PM Monday: the extended fcst picks up at 00z on Friday
with broad upper trofing moving off the Atlantic Coast as heights
begin to recover over our area. On Saturday, a weaker southern-
stream upper trof/shortwave will approach the Southeast from the
west and move over the area early Sunday. In its wake, flat upper
ridging will spread back over the area to end the period.

At the surface, broad high pressure will be centered over the SE
to start the period. By early Sat, the high will drift offshore
as a robust low develops over northern Texas. The low is expected
to quickly translate eastward and approach our area later in the
day. As it does, a very broad area of deeper moisture will spread
over the region from the SW and bring widespread precip to the CWA.
The latest guidance has the low itself lifting up and over the fcst
area sometime late Saturday into early Sunday. In its wake, broad
Canadian high pressure will spread over the region on Sunday and
linger thru early next week. As for the sensible fcst, frost/freeze
conditions will be possible again early Friday across a good portion
of the CWA, especially over the NC mountains as widespread 30s are
expected with a few locations dropping into the 20s. On Sat, the
above-mentioned low pressure system could produce some form of hydro
threat, although the area of best QPF response and timing is still
somewhat uncertain. The overall consensus still has most of the
precip spreading from west to east on Sat and becoming widespread
thru Saturday night before tapering off Sun morning.

&&

.AVIATION /06Z TUESDAY THROUGH SATURDAY/...
At KCLT and Elsewhere: VFR. Light winds this morning with increasing
cirrus. Expect FEW-SCT cumulus this aftn, generally with bases 050-
070. Cumulus continues overnight with mid level cigs. Winds will
increase in speed from the south during the morning as high pressure
slides east. Can't rule out some low end gusts for the afternoon.
Winds diminish a little in speed but remain southerly overnight.

Outlook: A cold front will cross the region from the west on
Wednesday, but have limited moisture, keeping most of the shower and
lower clouds along the TN border. The bigger concern will be gusty
west to northwest winds during the day. Dry high pressure returns
for Thursday and Friday. A low pressure system will bring
precipitation and possible restrictions Saturday.

Confidence Table...

            05-11Z        11-17Z        17-23Z        23-00Z
KCLT       High 100%     High 100%     High 100%     High 100%
KGSP       High 100%     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 100%     High 100%     High 100%     High 100%
KAND       High 100%     High 100%     High 100%     High 100%

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

www.weather.gov/gsp/aviation

&&

.CLIMATE...
RECORDS FOR 04-22

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAVL      86 1963     46 1927     62 1964     30 1953
                1896
   KCLT      91 1963     47 1901     66 1909     33 1978
                1957
   KGSP      90 1963     43 1901     68 1896     32 1978

RECORDS FOR 04-23

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAVL      88 1960     42 1903     61 1957     29 1986
   KCLT      91 1980     51 1901     64 1920     35 1986
                1963
                1960
   KGSP      91 1980     48 1901     66 1920     32 1982
                1963
                1960

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.

&&

SYNOPSIS...DEO
NEAR TERM...ARK/RWH/Wimberley
SHORT TERM...JPT
LONG TERM...JPT
AVIATION...ARK
CLIMATE...
Hazardous weather outlook, Apr 19, 4:21 AM EDT, 23 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
421 AM EDT Mon Apr 19 2021

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-201100-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Avery-Alexander-
Iredell-Davie-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Catawba-
Rowan-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union NC-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Oconee Mountains-
Pickens Mountains-Greenville Mountains-Greater Oconee-
Greater Pickens-Greater Greenville-Spartanburg-Cherokee-York-
Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
421 AM EDT Mon Apr 19 2021

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

.DAY ONE...Today and tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

An unseasonably cold air mass will move into the area behind a cold
front Wednesday night. Temperatures will likely cool enough to
support frost/freeze conditions early Thursday. As the air mass
lingers over the area, frost/freeze conditions will again be possible
early Friday. Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.

.SPOTTER INFORMATION STATEMENT...

None.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 1:30 PM EDTFire Weather WatchGSPAlexander, Burke, Cabarrus, Caldwell, Catawba, Cleveland and 10 more14 hr

Nearby

Freeze Watches in North Carolina, 2021Freeze Watches in Georgia, 2021Freeze Watches in South Carolina, 2021Every freeze watch 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.