Alert archive / Georgia / Flash Flood Watches in 2021
Flash Flood Watch 2, NWS Charleston, SC
NWS Charleston, SC issued this flash flood watch at Feb 18, 2021, 7:15 AM EST for 8 counties in Georgia; 5 counties in South Carolina. It was in force for 20 hr.
The area
The counties it named.
The facts
- Issued
- Feb 18, 2021, 7:15 AM EST (12:15 UTC)
- Expired
- Feb 19, 2021, 3:12 AM EST
- In force
- 20 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 12:19 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, 0.3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 420 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 544 m²/s²
- 0-3 km storm-relative helicity
- 545 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted.
212 WGUS62 KCHS 181215 FFACHS URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Charleston SC 715 AM EST Thu Feb 18 2021 GAZ087-088-099>101-114-115-SCZ040-042-043-047-049-051-182015- /O.NEW.KCHS.FF.A.0002.210218T1215Z-210219T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-Allendale- Hampton-Inland Colleton-Inland Jasper-Coastal Colleton-Coastal Jasper- Including the cities of Hampton, Edisto Beach, Allendale, Rincon, Levy, Reidsville, Yemassee, Sylvania, Claxton, Ridgeland, Millen, Statesboro, Walterboro, Chelsea, Metter, Springfield, and Jasper 715 AM EST Thu Feb 18 2021 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... 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, Effingham, Evans, Jenkins, Screven and Tattnall. In southeast South Carolina, Allendale, Coastal Colleton, Coastal Jasper, Hampton, Inland Colleton and Inland Jasper. * Through late tonight. * Widespread showers and thunderstorms will continue to produce moderate to heavy rainfall across portions of southeast Georgia and southeast South Carolina through tonight. Pockets of heavy rain this morning have already produced measured rainfall amounts of 2-4 inches from around Reidsville, to Hampton, eastward to northern Colleton County. Additional rainfall amounts of 1 to 3 inches are expected through tonight. 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. && $$ BSH
4 follow-up statements
221 WGUS62 KCHS 181803 FFACHS URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Charleston SC 103 PM EST Thu Feb 18 2021 GAZ116-118-137-138-SCZ044-045-048-050-052-190215- /O.EXA.KCHS.FF.A.0002.000000T0000Z-210219T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Inland Bryan-Inland Chatham-Long-Inland Liberty-Dorchester-Inland Berkeley-Beaufort-Charleston-Tidal Berkeley- Including the cities of Pembroke, Mount Pleasant, North Charleston, Goose Creek, Saint George, Daniel Island, Savannah, Moncks Corner, Charleston, Beaufort, Hilton Head Island, Richmond Hill, Pooler, Summerville, Garden City, Hinesville, Ludowici, and Fort Stewart 103 PM EST Thu Feb 18 2021 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... The National Weather Service in Charleston has expanded the * Flash Flood Watch to include portions of southeast Georgia and southeast South Carolina, including the following areas, in southeast Georgia, Inland Bryan, Inland Chatham, Inland Liberty and Long. In southeast South Carolina, Beaufort, Charleston, Dorchester, Inland Berkeley and Tidal Berkeley. * Through late tonight. * Widespread showers and thunderstorms will continue to produce moderate to heavy rainfall across portions of southeast Georgia and southeast South Carolina through tonight. Pockets of heavy rain and the potential for showers and thunderstorms to move over the same area will result in an additional 1 to 3 inches. Given the saturated grounds from the recent stretch of rainy weather, the risk for flash flooding has increased. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Be prepared to protect life and property, especially in areas prone to flooding. If flooding develops, move to higher ground immediately. If driving, be prepared for flooded roadways and possible road closures. && $$ GAZ087-088-099>101-114-115-SCZ040-042-043-047-049-051-190215- /O.CON.KCHS.FF.A.0002.000000T0000Z-210219T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-Allendale- Hampton-Inland Colleton-Inland Jasper-Coastal Colleton-Coastal Jasper- Including the cities of Hampton, Edisto Beach, Allendale, Rincon, Levy, Reidsville, Yemassee, Sylvania, Claxton, Ridgeland, Millen, Statesboro, Walterboro, Chelsea, Metter, Springfield, and Jasper 103 PM EST Thu Feb 18 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... The Flash Flood Watch continues for * Portions of southeast Georgia and southeast South Carolina, including the following areas, in southeast Georgia, Bulloch, Candler, Effingham, Evans, Jenkins, Screven and Tattnall. In southeast South Carolina, Allendale, Coastal Colleton, Coastal Jasper, Hampton, Inland Colleton and Inland Jasper. * Through late tonight. * Widespread showers and thunderstorms will continue to produce moderate to heavy rainfall across portions of southeast Georgia and southeast South Carolina through tonight. Pockets of heavy rain and the potential for showers and thunderstorms to move over the same area will result in an additional 1 to 3 inches. Given the saturated grounds from the recent stretch of rainy weather, the risk for flash flooding has increased. 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. && $$
533 WGUS62 KCHS 190215 FFACHS Flood Watch National Weather Service Charleston SC 915 PM EST Thu Feb 18 2021 GAZ087-088-099>101-114-115-SCZ040-042-043-047-049-051-191000- /O.CON.KCHS.FF.A.0002.000000T0000Z-210219T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans- Allendale-Hampton-Inland Colleton-Inland Jasper-Coastal Colleton- Coastal Jasper- Including the cities of Millen, Sylvania, Metter, Statesboro, Rincon, Springfield, Reidsville, Claxton, Allendale, Hampton, Yemassee, Walterboro, Ridgeland, Edisto Beach, Levy, Chelsea, and Jasper 915 PM EST Thu Feb 18 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 5 AM EST FRIDAY... The Flash Flood Watch continues for * portions of southeast Georgia and southeast South Carolina, including the following areas, in southeast Georgia, Bulloch, Candler, Effingham, Evans, Jenkins, Screven, and Tattnall. In southeast South Carolina, Allendale, Coastal Colleton, Coastal Jasper, Hampton, Inland Colleton, and Inland Jasper. * until 5 AM EST Friday * Widespread showers and isolated thunderstorms will continue to produce moderate to heavy rainfall across portions of southeast Georgia and southeast South Carolina through tonight. Pockets of heavy rain and the potential for showers and thunderstorms to move over the same area will result in an additional 1 to 3 inches. Given the saturated grounds from the recent stretch of rainy weather, the risk for flash flooding has increased. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Be prepared to protect life and property, especially in areas prone to flooding. If flooding develops, move to higher ground immediately. If driving, be prepared for flooded roadways and possible road closures. && $$ GAZ116-118-137-138-SCZ044-045-048-050-052-191000- /O.CON.KCHS.FF.A.0002.000000T0000Z-210219T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Inland Bryan-Inland Chatham-Long-Inland Liberty-Dorchester- Inland Berkeley-Beaufort-Charleston-Tidal Berkeley- Including the cities of Pembroke, Richmond Hill, Garden City, Pooler, Savannah, Ludowici, Hinesville, Fort Stewart, Saint George, Summerville, Goose Creek, Moncks Corner, Beaufort, Hilton Head Island, Charleston, North Charleston, Mount Pleasant, and Daniel Island 915 PM EST Thu Feb 18 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 5 AM EST FRIDAY... The Flash Flood Watch continues for * portions of southeast Georgia and southeast South Carolina, including the following areas, in southeast Georgia, Inland Bryan, Inland Chatham, Inland Liberty, and Long. In southeast South Carolina, Beaufort, Charleston, Dorchester, Inland Berkeley, and Tidal Berkeley. * until 5 AM EST Friday * Widespread showers and isolated thunderstorms will continue to produce moderate to heavy rainfall across portions of southeast Georgia and southeast South Carolina through tonight. Pockets of heavy rain and the potential for showers and thunderstorms to move over the same area will result in an additional 1 to 3 inches. Given the saturated grounds from the recent stretch of rainy weather, the risk for flash flooding has increased. 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. && $$
008 WGUS62 KCHS 190313 FFACHS Flood Watch National Weather Service Charleston SC 1013 PM EST Thu Feb 18 2021 GAZ087-088-099>101-114>116-118-137-138-SCZ040-042>045-047>052-191000- /O.CON.KCHS.FF.A.0002.000000T0000Z-210219T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-Inland Bryan-Inland Chatham-Long-Inland Liberty-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, Springfield, Fort Stewart, Levy, Hilton Head Island, Rincon, Beaufort, Allendale, Richmond Hill, Summerville, Garden City, Ludowici, Jasper, Pembroke, North Charleston, Reidsville, Yemassee, Ridgeland, Pooler, Goose Creek, Statesboro, Hinesville, Chelsea, Daniel Island, Hampton, Saint George, Savannah, Moncks Corner, Sylvania, Millen, and Metter 1013 PM EST Thu Feb 18 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 5 AM EST FRIDAY... The Flash Flood Watch continues for * Portions of southeast Georgia and southeast South Carolina, including the following areas, in southeast Georgia, Bulloch, Candler, Effingham, Evans, Inland Bryan, Inland Chatham, Inland Liberty, 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. * Until 5 AM EST Friday. * Widespread showers and isolated thunderstorms will continue to produce moderate to heavy rainfall across portions of southeast Georgia and southeast South Carolina through tonight. Pockets of heavy rain and the potential for showers and thunderstorms to move over the same area will result in an additional 1 to 3 inches. Given the saturated grounds from the recent stretch of rainy weather, the risk for flash flooding has increased. 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. && $$ NED
584 WGUS62 KCHS 190812 FFACHS Flood Watch National Weather Service Charleston SC 312 AM EST Fri Feb 19 2021 GAZ087-088-099>101-114>116-118-137-138-SCZ040-042>045-047>052-190915- /O.CAN.KCHS.FF.A.0002.000000T0000Z-210219T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-Inland Bryan-Inland Chatham-Long-Inland Liberty-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, Springfield, Fort Stewart, Levy, Hilton Head Island, Rincon, Beaufort, Allendale, Richmond Hill, Summerville, Garden City, Ludowici, Jasper, Pembroke, North Charleston, Reidsville, Yemassee, Ridgeland, Pooler, Goose Creek, Statesboro, Hinesville, Chelsea, Daniel Island, Hampton, Saint George, Savannah, Moncks Corner, Sylvania, Millen, and Metter 312 AM EST Fri Feb 19 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of southeast Georgia and southeast South Carolina, including the following areas, in southeast Georgia, Bulloch, Candler, Effingham, Evans, Inland Bryan, Inland Chatham, Inland Liberty, 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 has been cancelled. The Flood Watch is cancelled. Light to moderate rain will continue across the area through the late afternoon hours, but rainfall rates are not expected to be intense enough to produce any additional significant flooding. $$ BSH
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 9:23 PM EST | River Flood Warning | CHS | Bryan, Bulloch, Chatham, Effingham | 25 days |
| Feb 18, 3:38 AM EST | Dense Fog Advisory | CHS | Effingham, Long | 4 hr |
| Feb 18, 10:40 AM EST | River Flood Warning | CHS | Screven | 21 days |
| Feb 18, 3:29 PM EST | Areal Flood Advisory | CHS | Bulloch, Screven | 114 min |
| Feb 18, 1:25 AM EST | Marine Dense Fog Advisory | CHS | 26 hr | |
| Feb 18, 3:37 AM EST | Small Craft Advisory | CHS | 41 hr | |
| Feb 18, 4:40 PM EST | Areal Flood Advisory | CHS | Allendale, Colleton, Hampton | 110 min |
| Feb 18, 5:17 PM EST | Areal Flood Advisory | CHS | Dorchester | 118 min |
| Feb 18, 5:44 PM EST | Areal Flood Advisory | CHS | Berkeley | 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.