Alert archive / South Carolina / Flash Flood Watches in 2021
Flash Flood Watch 1, NWS Columbia, SC
NWS Columbia, SC issued this flash flood watch at Jan 1, 2021, 3:35 PM EST for 17 counties in South Carolina; 5 counties in Georgia. It took effect at Jan 2, 2021, 6:00 PM EST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Jan 1, 2021, 3:35 PM EST (20:35 UTC)
- In effect from
- Jan 2, 2021, 6:00 PM EST
- Expired
- Jan 3, 2021, 1:55 AM EST
- In force
- 8 hr
- Issued by
- NWS Columbia, SC
- Flood severity
- None
All 22 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, Richland County, SC, Saluda County, SC, Sumter County, SC
The radar
The Columbia radar (KCAE), 23 km from the middle of the area, began a volume at 20:38 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 12:00Z, 8.6 hours before the alert went out and 163 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
- 392 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 594 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
192 WGUS62 KCAE 012035 FFACAE URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Columbia SC 335 PM EST Fri Jan 1 2021 GAZ040-063>065-077-SCZ016-018-020>022-025>031-035>038-041-115-116- 021200- /O.NEW.KCAE.FF.A.0001.210102T2300Z-210103T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lincoln-McDuffie-Columbia-Richmond-Burke-Chesterfield-McCormick- Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland- Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-Bamberg- Northern Lancaster-Southern Lancaster- 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, Orangeburg, Brookdale, St. Matthews, Manning, Summerton, Bamberg, Denmark, Indian Land, Lancaster, Elgin, and Lancaster Mill 335 PM EST Fri Jan 1 2021 ...FLASH FLOOD WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SATURDAY NIGHT... The National Weather Service in Columbia has issued a * Flash Flood Watch for portions of east central Georgia and central South Carolina, including the following areas, in east central Georgia, Burke, Columbia, Lincoln, McDuffie, and Richmond. In central South Carolina, Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon, Edgefield, Fairfield, Kershaw, Lee, Lexington, McCormick, Newberry, Northern Lancaster, Orangeburg, Richland, Saluda, Southern Lancaster, and Sumter. * From Saturday evening through late Saturday night * Heavy rainfall will impact the region late Saturday afternoon through early Sunday morning as a wave of low pressure moves across the area. Area soils are already saturated from recent rains. Storm total rainfall amounts will range from 1 to 2 inches with locally higher amounts up to 3 inches. Rises on streams and creeks may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
4 follow-up statements
666 WGUS62 KCAE 020808 FFACAE Flood Watch National Weather Service Columbia SC 308 AM EST Sat Jan 2 2021 GAZ040-063>065-077-SCZ016-018-020>022-025>031-035>038-041-115-116- 022100- /O.CON.KCAE.FF.A.0001.210102T2300Z-210103T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lincoln-McDuffie-Columbia-Richmond-Burke-Chesterfield-McCormick- Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland-Lee- Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-Bamberg-Northern Lancaster-Southern Lancaster- Including the cities of Lancaster, Bishopville, Hephzibah, Sumter, Orangeburg, Winnsboro, Columbia, Saluda, Newberry, Waynesboro, St. Matthews, Ridge Spring, Lugoff, Blackville, Barnwell, Cayce, Winnsboro Mills, West Columbia, Brookdale, Bamberg, Lexington, Augusta, Seven Oaks, Lancaster Mill, Red Bank, Johnston, Pageland, Oak Grove, North Augusta, Denmark, Aiken, Elgin, Summerton, Edgefield, Mccormick, Evans, Indian Land, Thomson, Martinez, Manning, Cheraw, Camden, Williston, and Lincolnton 308 AM EST Sat Jan 2 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... The Flash Flood Watch continues for * Portions of east central Georgia and central South Carolina, including the following areas, in east central Georgia, Burke, Columbia, Lincoln, McDuffie and Richmond. In central South Carolina, Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon, Edgefield, Fairfield, Kershaw, Lee, Lexington, McCormick, Newberry, Northern Lancaster, Orangeburg, Richland, Saluda, Southern Lancaster and Sumter. * From this evening through late tonight * Heavy rainfall will impact the region late this afternoon through early Sunday morning as a wave of low pressure moves across the area. Area soils are already saturated from recent rains. Storm total rainfall amounts will range from 1 to 2 inches, with locally higher amounts up to 3 inches. Rises on streams and creeks may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ JAQ
189 WGUS62 KCAE 021936 FFACAE Flood Watch National Weather Service Columbia SC 236 PM EST Sat Jan 2 2021 GAZ040-063>065-077-SCZ016-018-020>022-025>031-035>038-041-115-116- 031000- /O.CON.KCAE.FF.A.0001.210102T2300Z-210103T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lincoln-McDuffie-Columbia-Richmond-Burke-Chesterfield-McCormick- Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland-Lee- Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-Bamberg-Northern Lancaster-Southern Lancaster- Including the cities of Lancaster, Bishopville, Hephzibah, Sumter, Orangeburg, Winnsboro, Columbia, Saluda, Newberry, Waynesboro, St. Matthews, Ridge Spring, Lugoff, Blackville, Barnwell, Cayce, Winnsboro Mills, West Columbia, Brookdale, Bamberg, Lexington, Augusta, Seven Oaks, Lancaster Mill, Red Bank, Johnston, Pageland, Oak Grove, North Augusta, Denmark, Aiken, Elgin, Summerton, Edgefield, Mccormick, Evans, Indian Land, Thomson, Martinez, Manning, Cheraw, Camden, Williston, and Lincolnton 236 PM EST Sat Jan 2 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 6 PM EST THIS EVENING THROUGH LATE TONIGHT... The Flash Flood Watch continues for * Portions of east central Georgia and central South Carolina, including the following areas, in east central Georgia, Burke, Columbia, Lincoln, McDuffie and Richmond. In central South Carolina, Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon, Edgefield, Fairfield, Kershaw, Lee, Lexington, McCormick, Newberry, Northern Lancaster, Orangeburg, Richland, Saluda, Southern Lancaster and Sumter. * From 6 PM EST this evening through late tonight * Heavy rainfall will impact the region late this afternoon through early Sunday morning as a wave of low pressure moves across the area. Area soils are already saturated from recent rains. Storm total rainfall amounts will range from 1 to 2 inches, with locally higher amounts up to 3 inches. Rises on streams and creeks may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ LCV
598 WGUS62 KCAE 030503 FFACAE Flood Watch National Weather Service Columbia SC 1203 AM EST Sun Jan 3 2021 GAZ040-063>065-SCZ018-020-025-026-030615- /O.CAN.KCAE.FF.A.0001.000000T0000Z-210103T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lincoln-McDuffie-Columbia-Richmond-McCormick-Newberry-Edgefield- Saluda- Including the cities of Edgefield, Mccormick, Evans, Hephzibah, Augusta, Martinez, Newberry, Johnston, Thomson, Ridge Spring, Saluda, and Lincolnton 1203 AM EST Sun Jan 3 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of east central Georgia and central South Carolina, including the following areas, in east central Georgia, Columbia, Lincoln, McDuffie and Richmond. In central South Carolina, Edgefield, McCormick, Newberry and Saluda has been cancelled. The heaviest rainfall has moved out of the area and the threat of flash flooding has ended, there the Flood Watch has been cancelled. $$ GAZ077-SCZ016-021-022-027>031-035>038-041-115-116-031100- /O.CON.KCAE.FF.A.0001.000000T0000Z-210103T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Burke-Chesterfield-Fairfield-Kershaw-Lexington-Richland-Lee-Aiken- Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-Bamberg-Northern Lancaster-Southern Lancaster- Including the cities of Lancaster, Bishopville, Sumter, Orangeburg, Winnsboro, Columbia, Waynesboro, St. Matthews, Lugoff, Barnwell, Cayce, Winnsboro Mills, West Columbia, Brookdale, Bamberg, Lexington, Blackville, Seven Oaks, Lancaster Mill, Red Bank, Pageland, Oak Grove, North Augusta, Denmark, Elgin, Summerton, Aiken, Indian Land, Manning, Cheraw, Camden, and Williston 1203 AM EST Sun Jan 3 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM EST EARLY THIS MORNING... The Flash Flood Watch continues for * Portions of east central Georgia and central South Carolina, including the following areas, in east central Georgia, Burke. In central South Carolina, Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon, Fairfield, Kershaw, Lee, Lexington, Northern Lancaster, Orangeburg, Richland, Southern Lancaster and Sumter. * Until 6 AM EST early this morning * Heavy rainfall will impact the region early this morning as a wave of low pressure moves across the area. Area soils are already saturated from recent rains. Storm total rainfall amounts will range from 1 to 2 inches, with locally higher amounts up to 3 inches. Rises on streams and creeks may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ JAQ
815 WGUS62 KCAE 030655 FFACAE Flood Watch National Weather Service Columbia SC 155 AM EST Sun Jan 3 2021 GAZ077-SCZ016-021-022-027>031-035>038-041-115-116-030800- /O.CAN.KCAE.FF.A.0001.000000T0000Z-210103T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Burke-Chesterfield-Fairfield-Kershaw-Lexington-Richland-Lee-Aiken- Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-Bamberg-Northern Lancaster-Southern Lancaster- Including the cities of Lancaster, Bishopville, Sumter, Orangeburg, Winnsboro, Columbia, Waynesboro, St. Matthews, Lugoff, Barnwell, Cayce, Winnsboro Mills, West Columbia, Brookdale, Bamberg, Lexington, Blackville, Seven Oaks, Lancaster Mill, Red Bank, Pageland, Oak Grove, North Augusta, Denmark, Elgin, Summerton, Aiken, Indian Land, Manning, Cheraw, Camden, and Williston 155 AM EST Sun Jan 3 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of east central Georgia and central South Carolina, including the following areas, in east central Georgia, Burke. In central South Carolina, Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon, Fairfield, Kershaw, Lee, Lexington, Northern Lancaster, Orangeburg, Richland, Southern Lancaster and Sumter has been cancelled. The Flash Flood Watch is cancelled. Flooding is no longer expected to pose a threat. $$ JAQ
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 31, 10:10 PM EST | Dense Fog Advisory | CAE | Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 11 more | 10 hr |
| Jan 1, 4:24 PM EST | River Flood Warning | CAE | Calhoun, Richland | 9 days |
| Jan 1, 4:24 PM EST | River Flood Warning | CAE | Calhoun, Lexington, Richland | 5 days |
| Jan 1, 4:24 PM EST | River Flood Advisory | CAE | Lexington, Richland | 4 days |
| Jan 1, 4:38 PM EST | Special Weather Statement | CAE | Newberry | 52 min |
| Jan 1, 5:28 PM EST | Tornado Warning | CAE | Edgefield, McCormick | 32 min |
| Jan 1, 6:20 PM EST | Special Weather Statement | CAE | Lexington | 40 min |
| Jan 1, 6:34 PM EST | Areal Flood Advisory | CAE | Aiken, Edgefield, Fairfield, Lexington, McCormick, Newberry and 2 more | 3 hr |
| Jan 1, 6:47 PM EST | Areal Flood Advisory | CAE | Calhoun, Kershaw, Lexington, Richland | 3 hr |
| Jan 1, 4:50 PM EST | Special Weather Statement | CAE | Lincoln | 40 min |
| Jan 1, 4:59 PM EST | Tornado Warning | CAE | Columbia, Lincoln, McDuffie | 31 min |
| Jan 1, 6:45 PM EST | Special Weather Statement | CAE | Richmond | 60 min |
Nearby
Flash Flood Watches in South Carolina, 2021Flash Flood Watches in Georgia, 2021Every flash flood 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.