Alert archive / South Carolina / Frost Advisories in 2021
Frost Advisory 6, NWS Columbia, SC
NWS Columbia, SC issued this frost advisory at Nov 13, 2021, 3:40 AM EST for 4 counties in Georgia; 12 counties in South Carolina. It took effect at Nov 14, 2021, 3:00 AM EST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Nov 13, 2021, 3:40 AM EST (08:40 UTC)
- In effect from
- Nov 14, 2021, 3:00 AM EST
- Expired
- Nov 14, 2021, 8:12 AM EST
- In force
- 5 hr
- Issued by
- NWS Columbia, SC
Counties Burke County, GA, Columbia County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chesterfield County, SC, Clarendon County, SC, Kershaw County, SC, Lee County, SC, Lexington County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC
The radar
The Columbia radar (KCAE), 27 km from the middle of the area, began a volume at 08:41 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
Charleston AFB, SC (KCHS), launched 00:00Z, 8.7 hours before the alert went out and 139 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
- 2471 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
842 WWUS72 KCAE 130840 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 340 AM EST Sat Nov 13 2021 GAZ063>065-077-SCZ016-022-027>031-035-037-038-041-135>137-131645- /O.NEW.KCAE.FR.Y.0006.211114T0800Z-211114T1400Z/ McDuffie-Columbia-Richmond-Burke-Chesterfield-Kershaw-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Calhoun-Clarendon-Bamberg- Northwestern Orangeburg-Central Orangeburg- Southeastern Orangeburg- Including the cities of Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Cheraw, Pageland, Camden, Lugoff, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 340 AM EST Sat Nov 13 2021 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM EST SUNDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From 3 AM to 9 AM EST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ GAZ040-SCZ018-020-021-025-026-115-116-131645- /O.NEW.KCAE.FZ.A.0002.211114T0800Z-211114T1400Z/ Lincoln-McCormick-Newberry-Fairfield-Edgefield-Saluda- Northern Lancaster-Southern Lancaster- Including the cities of Lincolnton, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Edgefield, Johnston, Saluda, Ridge Spring, Indian Land, Lancaster, Elgin, and Lancaster Mill 340 AM EST Sat Nov 13 2021 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... * WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From late tonight through Sunday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
3 follow-up statements
492 WWUS72 KCAE 131544 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 1044 AM EST Sat Nov 13 2021 GAZ040-SCZ018-020-021-025-026-115-116-141000- /O.UPG.KCAE.FZ.A.0002.211114T0800Z-211114T1400Z/ /O.NEW.KCAE.FZ.W.0003.211114T0800Z-211114T1400Z/ Lincoln-McCormick-Newberry-Fairfield-Edgefield-Saluda- Northern Lancaster-Southern Lancaster- Including the cities of Lincolnton, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Edgefield, Johnston, Saluda, Ridge Spring, Indian Land, Lancaster, Elgin, and Lancaster Mill 1044 AM EST Sat Nov 13 2021 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM EST SUNDAY... * WHAT...Sub-freezing temperatures as low as 32 expected. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From 3 AM to 9 AM EST Sunday. * 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. && $$ GAZ063>065-077-SCZ016-022-027>031-035-037-038-041-135>137-141000- /O.CON.KCAE.FR.Y.0006.211114T0800Z-211114T1400Z/ McDuffie-Columbia-Richmond-Burke-Chesterfield-Kershaw-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Calhoun-Clarendon-Bamberg- Northwestern Orangeburg-Central Orangeburg- Southeastern Orangeburg- Including the cities of Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Cheraw, Pageland, Camden, Lugoff, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 1044 AM EST Sat Nov 13 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM EST SUNDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From 3 AM to 9 AM EST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
019 WWUS72 KCAE 140734 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 234 AM EST Sun Nov 14 2021 GAZ040-SCZ018-020-021-025-026-115-116-141400- /O.CON.KCAE.FZ.W.0003.211114T0800Z-211114T1400Z/ Lincoln-McCormick-Newberry-Fairfield-Edgefield-Saluda- Northern Lancaster-Southern Lancaster- Including the cities of Lincolnton, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Edgefield, Johnston, Saluda, Ridge Spring, Indian Land, Lancaster, Elgin, and Lancaster Mill 234 AM EST Sun Nov 14 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...Until 9 AM EST this morning. * 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. && $$ GAZ063>065-077-SCZ016-022-027>031-035-037-038-041-135>137-141400- /O.CON.KCAE.FR.Y.0006.211114T0800Z-211114T1400Z/ McDuffie-Columbia-Richmond-Burke-Chesterfield-Kershaw-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Calhoun-Clarendon-Bamberg- Northwestern Orangeburg-Central Orangeburg- Southeastern Orangeburg- Including the cities of Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Cheraw, Pageland, Camden, Lugoff, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 234 AM EST Sun Nov 14 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...Until 9 AM EST this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
054 WWUS72 KCAE 141312 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 812 AM EST Sun Nov 14 2021 GAZ040-SCZ018-020-021-025-026-115-116-141415- /O.CAN.KCAE.FZ.W.0003.000000T0000Z-211114T1400Z/ Lincoln-McCormick-Newberry-Fairfield-Edgefield-Saluda- Northern Lancaster-Southern Lancaster- Including the cities of Lincolnton, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Edgefield, Johnston, Saluda, Ridge Spring, Indian Land, Lancaster, Elgin, and Lancaster Mill 812 AM EST Sun Nov 14 2021 ...FREEZE WARNING IS CANCELLED... Temperatures have warmed above freezing and will continue to warm quickly through the morning hours and therefore the freeze warning has been cancelled. $$ GAZ063>065-077-SCZ016-022-027>031-035-037-038-041-135>137-141415- /O.CAN.KCAE.FR.Y.0006.000000T0000Z-211114T1400Z/ McDuffie-Columbia-Richmond-Burke-Chesterfield-Kershaw-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Calhoun-Clarendon-Bamberg- Northwestern Orangeburg-Central Orangeburg- Southeastern Orangeburg- Including the cities of Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Cheraw, Pageland, Camden, Lugoff, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 812 AM EST Sun Nov 14 2021 ...FROST ADVISORY IS CANCELLED... Temperatures continue to warm quickly this morning and therefore the frost advisory has been cancelled. $$
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 13, 3:40 AM EST | Freeze Watch | CAE | Lincoln | 7 hr |
| Nov 13, 10:44 AM EST | Freeze Warning | CAE | Lincoln | 21 hr |
Nearby
Frost Advisories in South Carolina, 2021Frost Advisories in Georgia, 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.