Alert archive / South Carolina / Freeze Warnings in 2021
Freeze Warning 1, NWS Columbia, SC
NWS Columbia, SC issued this freeze warning at Apr 1, 2021, 3:02 AM EDT for 18 counties in South Carolina; 5 counties in Georgia. It took effect at Apr 2, 2021, 2:00 AM EDT. It was in force for 7 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, 3:02 AM EDT (07:02 UTC)
- In effect from
- Apr 2, 2021, 2:00 AM EDT
- Expired
- Apr 2, 2021, 9:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Columbia, SC
All 23 counties
Burke County, GA, Columbia County, GA, Lincoln 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, Edgefield County, SC, Fairfield County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC
The radar
The Columbia radar (KCAE), 22 km from the middle of the area, began a volume at 07:04 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, 7.0 hours before the alert went out and 160 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
- 871 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 870 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.6
The text
As transmitted.
950 WWUS72 KCAE 010702 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 302 AM EDT Thu Apr 1 2021 GAZ040-063>065-SCZ016-018-020>022-025>031-115-116-011515- /O.UPG.KCAE.FZ.A.0001.210402T0600Z-210402T1300Z/ /O.NEW.KCAE.FZ.W.0001.210402T0600Z-210402T1300Z/ Lincoln-McDuffie-Columbia-Richmond-Chesterfield-McCormick- Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland- Lee-Aiken-Sumter-Northern Lancaster-Southern Lancaster- Including the cities of Lincolnton, Thomson, Martinez, Evans, Augusta, Hephzibah, Cheraw, Pageland, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Camden, Lugoff, Edgefield, Johnston, Saluda, Ridge Spring, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Indian Land, Lancaster, Elgin, and Lancaster Mill 302 AM EDT Thu Apr 1 2021 ...FREEZE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 28 degrees possible. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From 2 AM to 9 AM EDT Friday. * IMPACTS...Freezing conditions could harm crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
4 follow-up statements
705 WWUS72 KCAE 011508 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 1108 AM EDT Thu Apr 1 2021 GAZ040-063>065-SCZ016-018-020>022-025>031-115-116-021045- /O.CON.KCAE.FZ.W.0001.210402T0600Z-210402T1300Z/ Lincoln-McDuffie-Columbia-Richmond-Chesterfield-McCormick- Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland- Lee-Aiken-Sumter-Northern Lancaster-Southern Lancaster- Including the cities of Lincolnton, Thomson, Martinez, Evans, Augusta, Hephzibah, Cheraw, Pageland, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Camden, Lugoff, Edgefield, Johnston, Saluda, Ridge Spring, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Indian Land, Lancaster, Elgin, and Lancaster Mill 1108 AM EDT Thu Apr 1 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 28 degrees possible. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From 2 AM to 9 AM EDT Friday. * IMPACTS...Freezing conditions could harm crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
261 WWUS72 KCAE 011835 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 235 PM EDT Thu Apr 1 2021 GAZ077-SCZ035-037-038-041-135>137-020900- /O.EXA.KCAE.FZ.W.0001.210402T0600Z-210402T1300Z/ Burke-Barnwell-Calhoun-Clarendon-Bamberg-Northwestern Orangeburg- Central Orangeburg-Southeastern Orangeburg- Including the cities of Waynesboro, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, North, Orangeburg, and Holly Hill 235 PM EDT Thu Apr 1 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT FRIDAY... * WHAT...Near or sub-freezing temperatures around 30 to 32 degrees. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From 2 AM to 9 AM EDT Friday. * IMPACTS...Freezing conditions could harm crops and other sensitive vegetation. 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. && $$ GAZ040-063>065-SCZ016-018-020>022-025>031-115-116-020900- /O.CON.KCAE.FZ.W.0001.210402T0600Z-210402T1300Z/ Lincoln-McDuffie-Columbia-Richmond-Chesterfield-McCormick- Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland- Lee-Aiken-Sumter-Northern Lancaster-Southern Lancaster- Including the cities of Lincolnton, Thomson, Martinez, Evans, Augusta, Hephzibah, Cheraw, Pageland, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Camden, Lugoff, Edgefield, Johnston, Saluda, Ridge Spring, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Indian Land, Lancaster, Elgin, and Lancaster Mill 235 PM EDT Thu Apr 1 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures in the upper 20s. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From 2 AM to 9 AM EDT Friday. * IMPACTS...Freezing conditions could harm crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
430 WWUS72 KCAE 020846 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 446 AM EDT Fri Apr 2 2021 GAZ040-063>065-077-SCZ016-018-020>022-025>031-035-037-038-041-115- 116-135>137-021300- /O.CON.KCAE.FZ.W.0001.000000T0000Z-210402T1300Z/ Lincoln-McDuffie-Columbia-Richmond-Burke-Chesterfield-McCormick- Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland- Lee-Aiken-Sumter-Barnwell-Calhoun-Clarendon-Bamberg- Northern Lancaster-Southern Lancaster-Northwestern Orangeburg- Central Orangeburg-Southeastern Orangeburg- Including the cities of Lincolnton, Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Cheraw, Pageland, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Camden, Lugoff, Edgefield, Johnston, Saluda, Ridge Spring, 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, Indian Land, Lancaster, Elgin, Lancaster Mill, North, Orangeburg, and Holly Hill 446 AM EDT Fri Apr 2 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Near or sub-freezing temperatures around 30 to 32 degrees. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Freezing conditions could harm crops and other sensitive vegetation. 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. && $$
129 WWUS72 KCAE 021305 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 905 AM EDT Fri Apr 2 2021 GAZ040-063>065-077-SCZ016-018-020>022-025>031-035-037-038-041-115- 116-135>137-031000- /O.EXP.KCAE.FZ.W.0001.000000T0000Z-210402T1300Z/ /O.NEW.KCAE.FZ.W.0002.210403T0500Z-210403T1300Z/ Lincoln-McDuffie-Columbia-Richmond-Burke-Chesterfield-McCormick- Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland- Lee-Aiken-Sumter-Barnwell-Calhoun-Clarendon-Bamberg- Northern Lancaster-Southern Lancaster-Northwestern Orangeburg- Central Orangeburg-Southeastern Orangeburg- Including the cities of Lincolnton, Thomson, Martinez, Evans, Augusta, Hephzibah, Waynesboro, Cheraw, Pageland, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Camden, Lugoff, Edgefield, Johnston, Saluda, Ridge Spring, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, St. Matthews, Manning, Summerton, Bamberg, Denmark, Indian Land, Lancaster, Elgin, Lancaster Mill, North, Orangeburg, and Holly Hill 905 AM EDT Fri Apr 2 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures 28 to 32 degrees expected. * WHERE...Portions of central South Carolina and east central Georgia. * WHEN...From 1 AM to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
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.