Alert archive / South Carolina / Freeze Warnings in 2021
Freeze Warning 4, NWS Columbia, SC
NWS Columbia, SC issued this freeze warning at Nov 23, 2021, 3:47 AM EST for 4 counties in Georgia; 9 counties in South Carolina. It took effect at Nov 24, 2021, 12:00 AM EST. 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
- Nov 23, 2021, 3:47 AM EST (08:47 UTC)
- In effect from
- Nov 24, 2021, 12:00 AM EST
- Expired
- Nov 24, 2021, 9:00 AM EST
- In force
- 9 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, Clarendon County, SC, Lexington County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC
The radar
The Columbia radar (KCAE), 49 km from the middle of the area, began a volume at 08:47 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, 8.8 hours before the alert went out and 143 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
- 876 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- -85 m²/s²
- 0-3 km storm-relative helicity
- -18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
374 WWUS72 KCAE 230847 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 347 AM EST Tue Nov 23 2021 GAZ063>065-077-SCZ027-028-030-031-035-037-038-041-135>137-231700- /O.UPG.KCAE.FZ.A.0003.211124T0500Z-211124T1400Z/ /O.NEW.KCAE.FZ.W.0004.211124T0500Z-211124T1400Z/ /O.CON.KCAE.LW.Y.0012.000000T0000Z-211123T1200Z/ McDuffie-Columbia-Richmond-Burke-Lexington-Richland-Aiken-Sumter- Barnwell-Calhoun-Clarendon-Bamberg-Northwestern Orangeburg- Central Orangeburg-Southeastern Orangeburg- Including the cities of Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 347 AM EST Tue Nov 23 2021 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EST WEDNESDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 24 expected. For the Lake Wind Advisory, north winds 15 to 25 knots diminishing this morning. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...For the Lake Wind Advisory, until 7 AM EST this morning. For the Freeze Warning, from midnight tonight to 9 AM EST Wednesday. * IMPACTS...Frost and freeze conditions will kill sensitive vegetation and possibly damage unprotected outdoor plumbing. Strong winds and rough waves on area lakes will create hazardous conditions for small craft. 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. Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. && $$ GAZ040-SCZ016-018-020>022-025-026-029-115-116-231200- /O.CON.KCAE.LW.Y.0012.000000T0000Z-211123T1200Z/ Lincoln-Chesterfield-McCormick-Newberry-Fairfield-Kershaw- Edgefield-Saluda-Lee-Northern Lancaster-Southern Lancaster- Including the cities of Lincolnton, Cheraw, Pageland, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Camden, Lugoff, Edgefield, Johnston, Saluda, Ridge Spring, Bishopville, Indian Land, Lancaster, Elgin, and Lancaster Mill 347 AM EST Tue Nov 23 2021 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING... * WHAT...North winds 15 knots gusting to 25 knots on area lakes. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. && $$
4 follow-up statements
405 WWUS72 KCAE 231143 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 643 AM EST Tue Nov 23 2021 GAZ063>065-077-SCZ027-028-030-031-035-037-038-041-135>137-232000- /O.EXP.KCAE.LW.Y.0012.000000T0000Z-211123T1200Z/ /O.CON.KCAE.FZ.W.0004.211124T0500Z-211124T1400Z/ McDuffie-Columbia-Richmond-Burke-Lexington-Richland-Aiken-Sumter- Barnwell-Calhoun-Clarendon-Bamberg-Northwestern Orangeburg- Central Orangeburg-Southeastern Orangeburg- Including the cities of Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 643 AM EST Tue Nov 23 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EST WEDNESDAY... ...LAKE WIND ADVISORY WILL EXPIRE AT 7 AM EST THIS MORNING... * WHAT...Sub-freezing temperatures as low as 24 expected. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From midnight tonight to 9 AM EST Wednesday. * IMPACTS...Frost and freeze conditions will kill 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. && $$ GAZ040-SCZ016-018-020>022-025-026-029-115-116-231245- /O.EXP.KCAE.LW.Y.0012.000000T0000Z-211123T1200Z/ Lincoln-Chesterfield-McCormick-Newberry-Fairfield-Kershaw- Edgefield-Saluda-Lee-Northern Lancaster-Southern Lancaster- Including the cities of Lincolnton, Cheraw, Pageland, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Camden, Lugoff, Edgefield, Johnston, Saluda, Ridge Spring, Bishopville, Indian Land, Lancaster, Elgin, and Lancaster Mill 643 AM EST Tue Nov 23 2021 ...LAKE WIND ADVISORY WILL EXPIRE AT 7 AM EST THIS MORNING... While a few higher gusts are possible on area lakes this morning, winds have diminished below 20 knots therefore the Lake Wind Advisory will be allowed to expire. $$
523 WWUS72 KCAE 231208 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 708 AM EST Tue Nov 23 2021 GAZ063>065-077-SCZ027-028-030-031-035-037-038-041-135>137-240600- /O.CON.KCAE.FZ.W.0004.211124T0500Z-211124T1400Z/ McDuffie-Columbia-Richmond-Burke-Lexington-Richland-Aiken-Sumter- Barnwell-Calhoun-Clarendon-Bamberg-Northwestern Orangeburg- Central Orangeburg-Southeastern Orangeburg- Including the cities of Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 708 AM EST Tue Nov 23 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EST WEDNESDAY... * WHAT...Sub-freezing temperatures in the middle 20s expected. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From midnight tonight to 9 AM EST Wednesday. * IMPACTS...Frost and freeze conditions will kill 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. && $$
542 WWUS72 KCAE 240937 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 437 AM EST Wed Nov 24 2021 GAZ063>065-077-SCZ027-028-030-031-035-037-038-041-135>137-241400- /O.CON.KCAE.FZ.W.0004.000000T0000Z-211124T1400Z/ McDuffie-Columbia-Richmond-Burke-Lexington-Richland-Aiken-Sumter- Barnwell-Calhoun-Clarendon-Bamberg-Northwestern Orangeburg- Central Orangeburg-Southeastern Orangeburg- Including the cities of Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 437 AM EST Wed Nov 24 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING... * WHAT...Sub-freezing temperatures in the lower to mid twenties. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...Until 9 AM EST this morning. * IMPACTS...Frost and freeze conditions will kill sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing. && $$
074 WWUS72 KCAE 241354 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 854 AM EST Wed Nov 24 2021 GAZ063>065-077-SCZ027-028-030-031-035-037-038-041-135>137-241500- /O.EXP.KCAE.FZ.W.0004.000000T0000Z-211124T1400Z/ McDuffie-Columbia-Richmond-Burke-Lexington-Richland-Aiken-Sumter- Barnwell-Calhoun-Clarendon-Bamberg-Northwestern Orangeburg- Central Orangeburg-Southeastern Orangeburg- Including the cities of Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 854 AM EST Wed Nov 24 2021 ...FREEZE WARNING WILL EXPIRE AT 9 AM EST THIS MORNING... Temperatures have warmed to above freezing this morning. The freeze warning will be allowed to expire at 9 AM. $$
Nearby
Freeze Warnings in South 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.