Alert archive / Georgia / Flash Flood Watches in 2021
Flash Flood Watch 3, NWS Charleston, SC
NWS Charleston, SC issued this flash flood watch at Jun 20, 2021, 2:58 AM EDT for 8 counties in Georgia; 5 counties in South Carolina. It took effect at Jun 20, 2021, 8:00 AM EDT. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Jun 20, 2021, 2:58 AM EDT (06:58 UTC)
- In effect from
- Jun 20, 2021, 8:00 AM EDT
- Expired
- Jun 21, 2021, 3:12 AM EDT
- In force
- 19 hr
- Issued by
- NWS Charleston, SC
- Flood severity
- None
Counties Bulloch County, GA, Candler County, GA, Effingham County, GA, Evans County, GA, Jenkins County, GA, Long County, GA, Screven County, GA, Tattnall County, GA, Allendale County, SC, Berkeley County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC
The radar
The Charleston,SC radar (KCLX), 33 km from the middle of the area, began a volume at 07:01 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 134 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
- 38 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 1384 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
322 WGUS62 KCHS 200658 FFACHS URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Charleston SC 258 AM EDT Sun Jun 20 2021 GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-201500- /O.NEW.KCHS.FF.A.0003.210620T1200Z-210621T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-Inland Bryan-Coastal Bryan-Inland Chatham-Coastal Chatham-Long-Inland Liberty-Coastal Liberty-Inland McIntosh-Coastal McIntosh-Allendale- Hampton-Inland Colleton-Dorchester-Inland Berkeley-Inland Jasper- Beaufort-Coastal Colleton-Charleston-Coastal Jasper-Tidal Berkeley- Including the cities of Edisto Beach, Mount Pleasant, Walterboro, Claxton, Charleston, Townsend, Fort Stewart, Levy, Hilton Head Island, Tybee Island, Rincon, Beaufort, Allendale, Richmond Hill, Springfield, Summerville, Garden City, Ludowici, Jasper, Pembroke, North Charleston, Reidsville, Yemassee, Ridgeland, Pooler, Goose Creek, Statesboro, Hinesville, Chelsea, Daniel Island, Hampton, Oak Level, Saint George, Savannah, Moncks Corner, Metter, Wilmington Island, Sylvania, Millen, Fort Mcallister, and Darien 258 AM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH MONDAY MORNING... The National Weather Service in Charleston has issued a * Flash Flood Watch for portions of southeast Georgia and southeast South Carolina, including the following areas, in southeast Georgia, Bulloch, Candler, Coastal Bryan, Coastal Chatham, Coastal Liberty, Coastal McIntosh, Effingham, Evans, Inland Bryan, Inland Chatham, Inland Liberty, Inland McIntosh, Jenkins, Long, Screven and Tattnall. In southeast South Carolina, Allendale, Beaufort, Charleston, Coastal Colleton, Coastal Jasper, Dorchester, Hampton, Inland Berkeley, Inland Colleton, Inland Jasper and Tidal Berkeley. * From 8 AM EDT this morning through Monday morning. * Bands of showers and a few thunderstorms will periodically move through the area today into tonight across southern South Carolina and southeast Georgia. As much as 2 to 3 inches of rain is expected to occur, but locally higher amounts are likely as Tropical Cyclone Claudette passes through parts of the Southeast United States. With rainfall amounts well above normal so far this month, the additional rainfall could result in the risk for flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Be prepared to protect life and property, especially in areas prone to flooding. If flooding develops, move to higher ground immediately. If driving, be prepared for flooded roadways and possible road closures. && $$
5 follow-up statements
984 WGUS62 KCHS 201157 FFACHS Flood Watch National Weather Service Charleston SC 757 AM EDT Sun Jun 20 2021 GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-202000- /O.CON.KCHS.FF.A.0003.210620T1200Z-210621T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans- Inland Bryan-Coastal Bryan-Inland Chatham-Coastal Chatham-Long- Inland Liberty-Coastal Liberty-Inland McIntosh-Coastal McIntosh- Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley- Inland Jasper-Beaufort-Coastal Colleton-Charleston-Coastal Jasper- Tidal Berkeley- Including the cities of Millen, Sylvania, Metter, Statesboro, Rincon, Springfield, Reidsville, Claxton, Pembroke, Richmond Hill, Fort Mcallister, Oak Level, Garden City, Pooler, Savannah, Wilmington Island, Tybee Island, Ludowici, Hinesville, Fort Stewart, Townsend, Darien, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, Moncks Corner, Ridgeland, Beaufort, Hilton Head Island, Edisto Beach, Charleston, North Charleston, Mount Pleasant, Levy, Chelsea, Jasper, and Daniel Island 757 AM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... The Flash Flood Watch continues for * portions of southeast Georgia and southeast South Carolina, including the following areas, in southeast Georgia, Bulloch, Candler, Coastal Bryan, Coastal Chatham, Coastal Liberty, Coastal McIntosh, Effingham, Evans, Inland Bryan, Inland Chatham, Inland Liberty, Inland McIntosh, Jenkins, Long, Screven, and Tattnall. In southeast South Carolina, Allendale, Beaufort, Charleston, Coastal Colleton, Coastal Jasper, Dorchester, Hampton, Inland Berkeley, Inland Colleton, Inland Jasper, and Tidal Berkeley. * through Monday morning * Bands of showers and a few thunderstorms will periodically move through the area today into tonight across southern South Carolina and southeast Georgia. As much as 2 to 3 inches of rain is expected to occur, but locally higher amounts are likely as Tropical Cyclone Claudette passes through parts of the Southeast United States. With rainfall amounts well above normal so far this month, the additional rainfall could result in the risk for flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Be prepared to protect life and property, especially in areas prone to flooding. If flooding develops, move to higher ground immediately. If driving, be prepared for flooded roadways and possible road closures. && $$
151 WGUS62 KCHS 201710 FFACHS Flood Watch National Weather Service Charleston SC 110 PM EDT Sun Jun 20 2021 GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-210115- /O.CON.KCHS.FF.A.0003.000000T0000Z-210621T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-Inland Bryan-Coastal Bryan-Inland Chatham-Coastal Chatham-Long-Inland Liberty-Coastal Liberty-Inland McIntosh-Coastal McIntosh-Allendale- Hampton-Inland Colleton-Dorchester-Inland Berkeley-Inland Jasper- Beaufort-Coastal Colleton-Charleston-Coastal Jasper-Tidal Berkeley- Including the cities of Edisto Beach, Mount Pleasant, Walterboro, Claxton, Charleston, Townsend, Fort Stewart, Levy, Hilton Head Island, Tybee Island, Rincon, Beaufort, Allendale, Richmond Hill, Springfield, Summerville, Garden City, Ludowici, Jasper, Pembroke, North Charleston, Reidsville, Yemassee, Ridgeland, Pooler, Goose Creek, Statesboro, Hinesville, Chelsea, Daniel Island, Hampton, Oak Level, Saint George, Savannah, Moncks Corner, Metter, Wilmington Island, Sylvania, Millen, Fort Mcallister, and Darien 110 PM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... The Flash Flood Watch continues for * Portions of southeast Georgia and southeast South Carolina, including the following areas, in southeast Georgia, Bulloch, Candler, Coastal Bryan, Coastal Chatham, Coastal Liberty, Coastal McIntosh, Effingham, Evans, Inland Bryan, Inland Chatham, Inland Liberty, Inland McIntosh, Jenkins, Long, Screven and Tattnall. In southeast South Carolina, Allendale, Beaufort, Charleston, Coastal Colleton, Coastal Jasper, Dorchester, Hampton, Inland Berkeley, Inland Colleton, Inland Jasper and Tidal Berkeley. * Through Monday morning. * Bands of showers and a few thunderstorms will periodically move through the area this afternoon into tonight. 2 to 3 inches of rain is expected to occur, but locally higher amounts are likely as Tropical Cyclone Claudette passes through parts of the Southeast United States. With rainfall amounts well above normal so far this month, the additional rainfall could result in the risk for flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Be prepared to protect life and property, especially in areas prone to flooding. If flooding develops, move to higher ground immediately. If driving, be prepared for flooded roadways and possible road closures. && $$ ETM
602 WGUS62 KCHS 202339 FFACHS Flood Watch National Weather Service Charleston SC 739 PM EDT Sun Jun 20 2021 GAZ087-088-099>101-114>119-137>141-SCZ040-042-047-048-051-210045- /O.CAN.KCHS.FF.A.0003.000000T0000Z-210621T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans- Inland Bryan-Coastal Bryan-Inland Chatham-Coastal Chatham-Long- Inland Liberty-Coastal Liberty-Inland McIntosh-Coastal McIntosh- Allendale-Hampton-Inland Jasper-Beaufort-Coastal Jasper- Including the cities of Millen, Sylvania, Metter, Statesboro, Rincon, Springfield, Reidsville, Claxton, Pembroke, Richmond Hill, Fort Mcallister, Oak Level, Garden City, Pooler, Savannah, Wilmington Island, Tybee Island, Ludowici, Hinesville, Fort Stewart, Townsend, Darien, Allendale, Hampton, Yemassee, Ridgeland, Beaufort, Hilton Head Island, Levy, Chelsea, and Jasper 739 PM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of southeast Georgia and southeast South Carolina has been cancelled. $$ SCZ043>045-049-050-052-210745- /O.CON.KCHS.FF.A.0003.000000T0000Z-210621T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Inland Colleton-Dorchester-Inland Berkeley-Coastal Colleton- Charleston-Tidal Berkeley- Including the cities of Walterboro, Saint George, Summerville, Goose Creek, Moncks Corner, Edisto Beach, Charleston, North Charleston, Mount Pleasant, and Daniel Island 739 PM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... The Flash Flood Watch continues for * a portion of southeast South Carolina, including the following areas, Charleston, Coastal Colleton, Dorchester, Inland Berkeley, Inland Colleton, and Tidal Berkeley. * through Monday morning * Bands of showers and a few thunderstorms will periodically move through the area this evening into tonight. 2 to 3 inches of rain is expected to occur, but locally higher amounts are likely as Tropical Cyclone Claudette passes through parts of the Southeast United States. With rainfall amounts well above normal so far this month, the additional rainfall could result in the risk for flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Be prepared to protect life and property, especially in areas prone to flooding. If flooding develops, move to higher ground immediately. If driving, be prepared for flooded roadways and possible road closures. && $$
993 WGUS62 KCHS 210248 FFACHS Flood Watch National Weather Service Charleston SC 1048 PM EDT Sun Jun 20 2021 SCZ043>045-049-052-210400- /O.CAN.KCHS.FF.A.0003.000000T0000Z-210621T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Inland Colleton-Dorchester-Inland Berkeley-Coastal Colleton- Tidal Berkeley- Including the cities of Walterboro, Saint George, Summerville, Goose Creek, Moncks Corner, Edisto Beach, and Daniel Island 1048 PM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for a portion of southeast South Carolina has been cancelled. $$ SCZ050-211100- /O.CON.KCHS.FF.A.0003.000000T0000Z-210621T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Charleston- Including the cities of Charleston, North Charleston, and Mount Pleasant 1048 PM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY... The Flash Flood Watch continues for * a portion of southeast South Carolina, including the following area, Charleston. * until 8 AM EDT Monday * Bands of showers and a few thunderstorms will periodically move through the area tonight. 2 to 3 inches of rain is expected to occur, but locally higher amounts are likely as Tropical Cyclone Claudette passes through parts of the Southeast United States. With rainfall amounts well above normal so far this month, the additional rainfall could result in the risk for flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Be prepared to protect life and property, especially in areas prone to flooding. If flooding develops, move to higher ground immediately. If driving, be prepared for flooded roadways and possible road closures. && $$
023 WGUS62 KCHS 210712 FFACHS Flood Watch National Weather Service Charleston SC 312 AM EDT Mon Jun 21 2021 SCZ050-210815- /O.CAN.KCHS.FF.A.0003.000000T0000Z-210621T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Charleston- Including the cities of Charleston, Mount Pleasant, and North Charleston 312 AM EDT Mon Jun 21 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for a portion of southeast South Carolina, including the following area, Charleston has been cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 2:06 PM EDT | Special Weather Statement | CHS | Bulloch, Candler, Jenkins, Screven | 24 min |
| Jun 20, 2:29 PM EDT | Special Weather Statement | CHS | Bulloch, Candler, Evans, Screven | 31 min |
| Jun 20, 2:59 PM EDT | Special Weather Statement | CHS | Bulloch, Evans, Screven | 31 min |
| Jun 20, 3:28 PM EDT | Special Weather Statement | CHS | Bulloch | 32 min |
| Jun 20, 11:19 AM EDT | Gale Warning | CHS | 18 hr | |
| Jun 20, 1:30 PM EDT | Lake Wind Advisory | CHS | Berkeley | 14 hr |
| Jun 20, 4:36 PM EDT | Special Weather Statement | CHS | Colleton | 24 min |
| Jun 20, 4:54 PM EDT | Special Weather Statement | CHS | Colleton, Dorchester | 36 min |
| Jun 20, 6:01 PM EDT | Special Weather Statement | CHS | Berkeley | 29 min |
| Jun 20, 6:30 PM EDT | Special Weather Statement | CHS | Berkeley | 30 min |
| Jun 20, 6:50 PM EDT | Special Weather Statement | CHS | Berkeley | 25 min |
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.