Alert archive / Georgia / Flash Flood Watches in 2021
Flash Flood Watch 4, NWS Columbia, SC
NWS Columbia, SC issued this flash flood watch at Oct 8, 2021, 5:41 AM EDT for Aiken County, Edgefield County, McCormick County, South Carolina; 4 counties in Georgia. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Oct 8, 2021, 5:41 AM EDT (09:41 UTC)
- Expired
- Oct 8, 2021, 12:00 PM EDT
- In force
- 6 hr
- Issued by
- NWS Columbia, SC
- Flood severity
- None
Counties Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Edgefield County, SC, McCormick County, SC
The radar
The Columbia radar (KCAE), 103 km from the middle of the area, began a volume at 09:43 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, 9.7 hours before the alert went out and 217 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
- 1150 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 705 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -44 m²/s²
- 0-3 km storm-relative helicity
- -59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.5
The text
As transmitted.
628 WGUS62 KCAE 080941 FFACAE URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Columbia SC 541 AM EDT Fri Oct 8 2021 GAZ040-SCZ018-081600- /O.NEW.KCAE.FF.A.0004.211008T0941Z-211008T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lincoln-McCormick- Including the cities of Mccormick and Lincolnton 541 AM EDT Fri Oct 8 2021 ...FLASH FLOOD WATCH IN EFFECT UNTIL NOON EDT TODAY... 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, Lincoln. In central South Carolina, McCormick. * Until Noon EDT today. * Heavy rainfall today of 1-3 inches will exacerbate issues from widespread heavy rainfall on Thursday. * Flood prone locations, small streams and creaks, and low lying roads could be prone to rapid rises in water during heavy rainfall today. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ PL
2 follow-up statements
143 WGUS62 KCAE 081049 FFACAE URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Columbia SC 649 AM EDT Fri Oct 8 2021 GAZ063>065-SCZ025-030-081600- /O.EXA.KCAE.FF.A.0004.000000T0000Z-211008T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ McDuffie-Columbia-Richmond-Edgefield-Aiken- Including the cities of Edgefield, Aiken, Evans, Hephzibah, Augusta, Martinez, Johnston, Thomson, and North Augusta 649 AM EDT Fri Oct 8 2021 ...FLASH FLOOD WATCH IN EFFECT UNTIL NOON EDT TODAY... The National Weather Service in Columbia has expanded the * Flash Flood Watch to include portions of east central Georgia and central South Carolina, including the following areas, in east central Georgia, Columbia, McDuffie and Richmond. In central South Carolina, Aiken and Edgefield. * Until Noon EDT today. * Heavy rainfall today of 1-3 inches will exacerbate issues from widespread heavy rainfall on Thursday. * Flood prone locations, small streams and creaks, and low lying roads could be prone to rapid rises in water during heavy rainfall today. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ GAZ040-SCZ018-081600- /O.CON.KCAE.FF.A.0004.000000T0000Z-211008T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lincoln-McCormick- Including the cities of Mccormick and Lincolnton 649 AM EDT Fri Oct 8 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL NOON EDT TODAY... The Flash Flood Watch continues for * Portions of east central Georgia and central South Carolina, including the following areas, in east central Georgia, Lincoln. In central South Carolina, McCormick. * Until Noon EDT today. * Heavy rainfall today of 1-3 inches will exacerbate issues from widespread heavy rainfall on Thursday. * Flood prone locations, small streams and creaks, and low lying roads could be prone to rapid rises in water during heavy rainfall today. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ CAL
059 WGUS62 KCAE 081607 FFACAE Flood Watch National Weather Service Columbia SC 1207 PM EDT Fri Oct 8 2021 GAZ040-063>065-SCZ018-025-030-081715- /O.EXP.KCAE.FF.A.0004.000000T0000Z-211008T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lincoln-McDuffie-Columbia-Richmond-McCormick-Edgefield-Aiken- Including the cities of Edgefield, Mccormick, Evans, Hephzibah, Augusta, Martinez, Johnston, Thomson, North Augusta, Lincolnton, and Aiken 1207 PM EDT Fri Oct 8 2021 ...FLASH FLOOD WATCH HAS EXPIRED... The Flash Flood Watch for portions of east central Georgia and central South Carolina, including the following areas, in east central Georgia, Columbia, Lincoln, McDuffie and Richmond. In central South Carolina, Aiken, Edgefield and McCormick has expired. The Flood Watch is cancelled. Significant flooding is no longer expected to pose a threat. However, scattered showers and a few thunderstorms are expected through the evening. A few of these storms may produce localized flooding. $$ AWP
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 8, 12:45 PM EDT | Areal Flood Advisory | CAE | Newberry, Saluda | 3 hr |
| Oct 8, 4:41 PM EDT | River Flood Warning | CAE | Greenwood, Newberry, Saluda | 61 hr |
| Oct 8, 7:26 AM EDT | Areal Flood Advisory | CAE | Columbia, McDuffie | 2 hr |
Nearby
Flash Flood Watches in Georgia, 2021Flash Flood Watches in South Carolina, 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.