Alert archive / North Carolina / Frost Advisories in 2021

Frost Advisory 5, NWS Raleigh, NC

November 4, 202119 counties in North Carolina

NWS Raleigh, NC issued this frost advisory at Nov 4, 2021, 3:13 AM EDT for 19 counties in North Carolina. It took effect at Nov 5, 2021, 2:00 AM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Nov 4, 2021, 3:13 AM EDT (07:13 UTC)
In effect from
Nov 5, 2021, 2:00 AM EDT
Expired
Nov 5, 2021, 9:23 AM EDT
In force
7 hr
Issued by
NWS Raleigh, NC

Counties Anson County, NC, Chatham County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Halifax County, NC, Harnett County, NC, Hoke County, NC, Johnston County, NC, Lee County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Richmond County, NC, Scotland County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 28 km from the middle of the area, began a volume at 07:17 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, 7.2 hours before the alert went out and 111 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 2021-11-04Temperature 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°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 2021-11-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939587897Sfc1 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
1768 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

871 
WWUS72 KRAH 040713
NPWRAH

URGENT - WEATHER MESSAGE
National Weather Service Raleigh NC
313 AM EDT Thu Nov 4 2021

NCZ007-008-021>024-038-039-073-041600-
/O.UPG.KRAH.FZ.A.0002.211105T0600Z-211105T1400Z/
/O.NEW.KRAH.FZ.W.0004.211105T0600Z-211105T1400Z/
Person-Granville-Forsyth-Guilford-Alamance-Orange-Davidson-
Randolph-Stanly-
Including the cities of Roxboro, Oxford, Creedmoor, 
Winston-Salem, Greensboro, High Point, Burlington, Graham, 
Mebane, Hillsborough, Chapel Hill, Carrboro, Lexington, 
Thomasville, Asheboro, Archdale, and Albemarle
313 AM EDT Thu Nov 4 2021

...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Person, Granville, Forsyth, Guilford, Alamance, 
  Orange, Davidson, Randolph and Stanly Counties.

* WHEN...From 2 AM to 10 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.

&&

$$

NCZ009-025-040-074>076-083-084-041600-
/O.UPG.KRAH.FZ.A.0002.211105T0600Z-211105T1400Z/
/O.NEW.KRAH.FR.Y.0005.211105T0600Z-211105T1400Z/
Vance-Durham-Chatham-Montgomery-Moore-Lee-Anson-Richmond-
Including the cities of Henderson, Kittrell, Durham, Rougemont, 
Siler City, Pittsboro, Troy, Southern Pines, Pinehurst, Aberdeen,
Carthage, Sanford, Wadesboro, Polkton, Rockingham, and Ellerbe
313 AM EDT Thu Nov 4 2021

...FROST ADVISORY IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY...

* WHAT...Temperatures as low as 32 will result in frost 
  formation.

* WHERE...Vance, Durham, Chatham, Montgomery, Moore, Lee, Anson 
  and Richmond Counties.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NCZ010-011-026-027-041-042-077-085-086-041600-
/O.NEW.KRAH.FR.Y.0005.211105T0600Z-211105T1400Z/
Warren-Halifax-Franklin-Nash-Wake-Johnston-Harnett-Scotland-Hoke-
Including the cities of Warrenton, Norlina, Roanoke Rapids, 
Enfield, Scotland Neck, Louisburg, Franklinton, Nashville, 
Spring Hope, Rocky Mount, Raleigh, Cary, Apex, Wake Forest, 
Knightdale, Smithfield, Selma, Clayton, Lillington, Angier, 
Buies Creek, Erwin, Dunn, Laurinburg, Camp Mackall, Wagram, 
and Raeford
313 AM EDT Thu Nov 4 2021

...FROST ADVISORY IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY...

* WHAT...Temperatures as low as 34 will result in frost 
  formation.

* WHERE...Warren, Halifax, Franklin, Nash, Wake, Johnston, 
  Harnett, Scotland and Hoke Counties.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
5 follow-up statements
706 
WWUS72 KRAH 041511
NPWRAH

URGENT - WEATHER MESSAGE
National Weather Service Raleigh NC
1111 AM EDT Thu Nov 4 2021

NCZ009-010-025-026-040-041-074>076-042315-
/O.UPG.KRAH.FR.Y.0005.211105T0600Z-211105T1400Z/
/O.EXA.KRAH.FZ.W.0004.211105T0600Z-211105T1400Z/
Vance-Warren-Durham-Franklin-Chatham-Wake-Montgomery-Moore-Lee-
Including the cities of Henderson, Kittrell, Warrenton, Norlina, 
Durham, Rougemont, Louisburg, Franklinton, Siler City, Pittsboro,
Raleigh, Cary, Apex, Wake Forest, Knightdale, Troy, 
Southern Pines, Pinehurst, Aberdeen, Carthage, and Sanford
1111 AM EDT Thu Nov 4 2021

...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY...

* WHAT...Temperatures as low as 30 to 32 will result in frost 
  formation and a freeze. 

* WHERE...Vance, Warren, Durham, Franklin, Chatham, Wake, 
  Montgomery, Moore and Lee Counties.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost and Freezing conditions could kill sensitive 
  outdoor vegetation if left uncovered.

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.

&&

$$

NCZ007-008-021>024-038-039-073-042315-
/O.CON.KRAH.FZ.W.0004.211105T0600Z-211105T1400Z/
Person-Granville-Forsyth-Guilford-Alamance-Orange-Davidson-
Randolph-Stanly-
Including the cities of Roxboro, Oxford, Creedmoor, 
Winston-Salem, Greensboro, High Point, Burlington, Graham, 
Mebane, Hillsborough, Chapel Hill, Carrboro, Lexington, 
Thomasville, Asheboro, Archdale, and Albemarle
1111 AM EDT Thu Nov 4 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...Person, Granville, Forsyth, Guilford, Alamance, 
  Orange, Davidson, Randolph and Stanly Counties.

* WHEN...From 2 AM to 10 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.

&&

$$

NCZ011-027-042-077-083>086-042315-
/O.CON.KRAH.FR.Y.0005.211105T0600Z-211105T1400Z/
Halifax-Nash-Johnston-Harnett-Anson-Richmond-Scotland-Hoke-
Including the cities of Roanoke Rapids, Enfield, Scotland Neck, 
Nashville, Spring Hope, Rocky Mount, Smithfield, Selma, Clayton, 
Lillington, Angier, Buies Creek, Erwin, Dunn, Wadesboro, Polkton,
Rockingham, Ellerbe, Laurinburg, Camp Mackall, Wagram, 
and Raeford
1111 AM EDT Thu Nov 4 2021

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Much of the Coastal Plain, Sandhills, and Southern
  Piedmont of NC. 

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
267 
WWUS72 KRAH 041951
NPWRAH

URGENT - WEATHER MESSAGE
National Weather Service Raleigh NC
351 PM EDT Thu Nov 4 2021

NCZ007>010-021>026-038>041-073>076-050400-
/O.CON.KRAH.FZ.W.0004.211105T0600Z-211105T1400Z/
Person-Granville-Vance-Warren-Forsyth-Guilford-Alamance-Orange-
Durham-Franklin-Davidson-Randolph-Chatham-Wake-Stanly-Montgomery-
Moore-Lee-
Including the cities of Roxboro, Oxford, Creedmoor, Henderson, 
Kittrell, Warrenton, Norlina, Winston-Salem, Greensboro, 
High Point, Burlington, Graham, Mebane, Hillsborough, 
Chapel Hill, Carrboro, Durham, Rougemont, Louisburg, Franklinton,
Lexington, Thomasville, Asheboro, Archdale, Siler City, 
Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, 
Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, 
and Sanford
351 PM EDT Thu Nov 4 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY...

* WHAT...Temperatures as low as 29 to 32 will result in frost 
  formation and a freeze.

* WHERE...Vance, Warren, Durham, Franklin, Chatham, Wake, 
  Montgomery, Moore and Lee Counties.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost and Freezing conditions could kill sensitive 
  outdoor vegetation if left uncovered.

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.

&&

$$

NCZ011-027-042-077-083>086-050400-
/O.CON.KRAH.FR.Y.0005.211105T0600Z-211105T1400Z/
Halifax-Nash-Johnston-Harnett-Anson-Richmond-Scotland-Hoke-
Including the cities of Roanoke Rapids, Enfield, Scotland Neck, 
Nashville, Spring Hope, Rocky Mount, Smithfield, Selma, Clayton, 
Lillington, Angier, Buies Creek, Erwin, Dunn, Wadesboro, Polkton,
Rockingham, Ellerbe, Laurinburg, Camp Mackall, Wagram, 
and Raeford
351 PM EDT Thu Nov 4 2021

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Much of the Coastal Plain, Sandhills, and Southern 
  Piedmont of NC.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
678 
WWUS72 KRAH 050138
NPWRAH

URGENT - WEATHER MESSAGE
National Weather Service Raleigh NC
938 PM EDT Thu Nov 4 2021

NCZ007>010-021>026-038>041-073>076-051400-
/O.CON.KRAH.FZ.W.0004.211105T0600Z-211105T1400Z/
Person-Granville-Vance-Warren-Forsyth-Guilford-Alamance-Orange-
Durham-Franklin-Davidson-Randolph-Chatham-Wake-Stanly-Montgomery-
Moore-Lee-
Including the cities of Roxboro, Oxford, Creedmoor, Henderson, 
Kittrell, Warrenton, Norlina, Winston-Salem, Greensboro, 
High Point, Burlington, Graham, Mebane, Hillsborough, 
Chapel Hill, Carrboro, Durham, Rougemont, Louisburg, Franklinton,
Lexington, Thomasville, Asheboro, Archdale, Siler City, 
Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, 
Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, 
and Sanford
938 PM EDT Thu Nov 4 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY...

* WHAT...Temperatures as low as 29 to 32 will result in frost 
  formation and a freeze.

* WHERE...Vance, Warren, Durham, Franklin, Chatham, Wake, 
  Montgomery, Moore and Lee Counties.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost and Freezing conditions could kill sensitive 
  outdoor vegetation if left uncovered.

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.

&&

$$

NCZ028-043-051400-
/O.EXA.KRAH.FR.Y.0005.211105T0600Z-211105T1400Z/
Edgecombe-Wilson-
Including the cities of Tarboro, Princeville, and Wilson
938 PM EDT Thu Nov 4 2021

...FROST ADVISORY IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Edgecombe and Wilson Counties.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NCZ011-027-042-077-083>086-051400-
/O.CON.KRAH.FR.Y.0005.211105T0600Z-211105T1400Z/
Halifax-Nash-Johnston-Harnett-Anson-Richmond-Scotland-Hoke-
Including the cities of Roanoke Rapids, Enfield, Scotland Neck, 
Nashville, Spring Hope, Rocky Mount, Smithfield, Selma, Clayton, 
Lillington, Angier, Buies Creek, Erwin, Dunn, Wadesboro, Polkton,
Rockingham, Ellerbe, Laurinburg, Camp Mackall, Wagram, 
and Raeford
938 PM EDT Thu Nov 4 2021

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Much of the Coastal Plain, Sandhills, and Southern 
  Piedmont of NC.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
717 
WWUS72 KRAH 050740
NPWRAH

URGENT - WEATHER MESSAGE
National Weather Service Raleigh NC
340 AM EDT Fri Nov 5 2021

NCZ007>010-021>026-038>041-073>076-051400-
/O.CON.KRAH.FZ.W.0004.000000T0000Z-211105T1400Z/
Person-Granville-Vance-Warren-Forsyth-Guilford-Alamance-Orange-
Durham-Franklin-Davidson-Randolph-Chatham-Wake-Stanly-Montgomery-
Moore-Lee-
Including the cities of Roxboro, Oxford, Creedmoor, Henderson, 
Kittrell, Warrenton, Norlina, Winston-Salem, Greensboro, 
High Point, Burlington, Graham, Mebane, Hillsborough, 
Chapel Hill, Carrboro, Durham, Rougemont, Louisburg, Franklinton,
Lexington, Thomasville, Asheboro, Archdale, Siler City, 
Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, 
Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, 
and Sanford
340 AM EDT Fri Nov 5 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Temperatures as low as 29 to 32 will result in frost 
  formation and a freeze.

* WHERE...Vance, Warren, Durham, Franklin, Chatham, Wake, 
  Montgomery, Moore and Lee Counties.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost and Freezing conditions could kill sensitive 
  outdoor vegetation if left uncovered.

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.

&&

$$

NCZ028-043-051400-
/O.CON.KRAH.FR.Y.0005.000000T0000Z-211105T1400Z/
Edgecombe-Wilson-
Including the cities of Tarboro, Princeville, and Wilson
340 AM EDT Fri Nov 5 2021

...FROST ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Edgecombe and Wilson Counties.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NCZ011-027-042-077-083>086-051400-
/O.CON.KRAH.FR.Y.0005.000000T0000Z-211105T1400Z/
Halifax-Nash-Johnston-Harnett-Anson-Richmond-Scotland-Hoke-
Including the cities of Roanoke Rapids, Enfield, Scotland Neck, 
Nashville, Spring Hope, Rocky Mount, Smithfield, Selma, Clayton, 
Lillington, Angier, Buies Creek, Erwin, Dunn, Wadesboro, Polkton,
Rockingham, Ellerbe, Laurinburg, Camp Mackall, Wagram, 
and Raeford
340 AM EDT Fri Nov 5 2021

...FROST ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Much of the Coastal Plain, Sandhills, and Southern 
  Piedmont of NC.

* WHEN...From 2 AM to 10 AM EDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
168 
WWUS72 KRAH 051323
NPWRAH

URGENT - WEATHER MESSAGE
National Weather Service Raleigh NC
923 AM EDT Fri Nov 5 2021

NCZ007>010-021>026-038>041-073>076-051430-
/O.CAN.KRAH.FZ.W.0004.000000T0000Z-211105T1400Z/
Person-Granville-Vance-Warren-Forsyth-Guilford-Alamance-Orange-
Durham-Franklin-Davidson-Randolph-Chatham-Wake-Stanly-Montgomery-
Moore-Lee-
Including the cities of Roxboro, Oxford, Creedmoor, Henderson, 
Kittrell, Warrenton, Norlina, Winston-Salem, Greensboro, 
High Point, Burlington, Graham, Mebane, Hillsborough, 
Chapel Hill, Carrboro, Durham, Rougemont, Louisburg, Franklinton,
Lexington, Thomasville, Asheboro, Archdale, Siler City, 
Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, 
Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, 
and Sanford
923 AM EDT Fri Nov 5 2021

...FREEZE WARNING IS CANCELLED...

Temperatures have increased above freezing this morning. 

$$

NCZ011-027-028-042-043-077-083>086-051430-
/O.CAN.KRAH.FR.Y.0005.000000T0000Z-211105T1400Z/
Halifax-Nash-Edgecombe-Johnston-Wilson-Harnett-Anson-Richmond-
Scotland-Hoke-
Including the cities of Roanoke Rapids, Enfield, Scotland Neck, 
Nashville, Spring Hope, Rocky Mount, Tarboro, Princeville, 
Smithfield, Selma, Clayton, Wilson, Lillington, Angier, 
Buies Creek, Erwin, Dunn, Wadesboro, Polkton, Rockingham, 
Ellerbe, Laurinburg, Camp Mackall, Wagram, and Raeford
923 AM EDT Fri Nov 5 2021

...FROST ADVISORY IS CANCELLED...

$$

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 4, 3:13 AM EDTFreeze WarningRAHAlamance, Chatham, Davidson, Durham, Forsyth, Franklin and 12 more30 hr

Nearby

Frost Advisories in North Carolina, 2021Every frost advisory 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.