Alert archive / South Carolina / Flash Flood Watches in 2021
Flash Flood Watch 2, NWS Wilmington, NC
NWS Wilmington, NC issued this flash flood watch at Jun 20, 2021, 3:35 AM EDT for 6 counties in North Carolina; 8 counties in South Carolina. It took effect at Jun 20, 2021, 12:00 PM EDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Jun 20, 2021, 3:35 AM EDT (07:35 UTC)
- In effect from
- Jun 20, 2021, 12:00 PM EDT
- Expired
- Jun 20, 2021, 10:05 PM EDT
- In force
- 10 hr
- Issued by
- NWS Wilmington, NC
- Flood severity
- None
Counties Bladen County, NC, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Robeson County, NC, Darlington County, SC, Dillon County, SC, Florence County, SC, Georgetown County, SC, Horry County, SC, Marion County, SC, Marlboro County, SC, Williamsburg County, SC
The radar
The Wilmington radar (KLTX), 59 km from the middle of the area, began a volume at 07:34 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, 7.6 hours before the alert went out and 169 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.
106 WGUS62 KILM 200735 FFAILM URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Wilmington NC 335 AM EDT Sun Jun 20 2021 NCZ087-096-099-105>110-SCZ017-023-024-032-033-039-054>056-058-059- 201545- /O.NEW.KILM.FF.A.0002.210620T1600Z-210621T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Robeson-Bladen-Columbus-Inland Pender-Coastal Pender-Inland New Hanover-Coastal New Hanover-Inland Brunswick-Coastal Brunswick- Marlboro-Darlington-Dillon-Florence-Marion-Williamsburg-Coastal Horry-Inland Georgetown-Coastal Georgetown-Central Horry-Northern Horry- Including the cities of Bennettsville, Carolina Beach, Boiling Spring Lakes, Shallotte, Burgaw, Lumberton, Masonboro, Georgetown, Murrells Inlet, Seagate, Bladenboro, Kingstree, Garden City, Oak Island, Myrtle Beach, Mullins, Little River, Southport, Socastee, Loris, Ogden, Wilmington, Lake Waccamaw, Surf City, McColl, Chadbourn, North Myrtle Beach, Hartsville, Green Sea, Leland, Tabor City, Whiteville, Myrtle Grove, Conway, Dillon, North Hartsville, Bucksport, Longs, Long Beach, Marion, Darlington, Andrews, Aynor, Sunset Beach, Florence, and Elizabethtown 335 AM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH IN EFFECT FROM THIS AFTERNOON THROUGH MONDAY MORNING... The National Weather Service in Wilmington has issued a * Flash Flood Watch for portions of southeast North Carolina and northeast South Carolina, including the following areas, in southeast North Carolina, Bladen, Coastal Brunswick, Coastal New Hanover, Coastal Pender, Columbus, Inland Brunswick, Inland New Hanover, Inland Pender and Robeson. In northeast South Carolina, Central Horry, Coastal Georgetown, Coastal Horry, Darlington, Dillon, Florence, Inland Georgetown, Marion, Marlboro, Northern Horry and Williamsburg. * From Noon EDT today through Monday morning. * Showers with embedded thunderstorms, enhanced by Tropical Depression Claudette that may become a Tropical Storm by the time it reaches the Carolina Coasts, will overspread the area today through tonight. The heaviest rainfall will occur tonight into early Monday which may result in flash flooding. Expect widespread 1 to 3 inch rainfall amounts with isolated higher amounts possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. You should closely monitor this potentially dangerous weather situation. Be prepared to take action should Flash Flood Warnings be issued for your area, and never drive through flooded roadways. && $$ DCH
3 follow-up statements
282 WGUS62 KILM 201658 FFAILM Flood Watch National Weather Service Wilmington NC 1258 PM EDT Sun Jun 20 2021 NCZ087-096-099-105>110-SCZ017-023-024-032-033-039-054>056-058-059- 210100- /O.CON.KILM.FF.A.0002.000000T0000Z-210621T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Robeson-Bladen-Columbus-Inland Pender-Coastal Pender-Inland New Hanover-Coastal New Hanover-Inland Brunswick-Coastal Brunswick- Marlboro-Darlington-Dillon-Florence-Marion-Williamsburg-Coastal Horry-Inland Georgetown-Coastal Georgetown-Central Horry-Northern Horry- Including the cities of Bennettsville, Carolina Beach, Boiling Spring Lakes, Shallotte, Burgaw, Lumberton, Masonboro, Georgetown, Murrells Inlet, Seagate, Bladenboro, Kingstree, Garden City, Oak Island, Myrtle Beach, Mullins, Little River, Southport, Socastee, Loris, Ogden, Wilmington, Lake Waccamaw, Surf City, McColl, Chadbourn, North Myrtle Beach, Hartsville, Green Sea, Leland, Tabor City, Whiteville, Myrtle Grove, Conway, Dillon, North Hartsville, Bucksport, Longs, Long Beach, Marion, Darlington, Andrews, Aynor, Sunset Beach, Florence, and Elizabethtown 1258 PM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... The Flash Flood Watch continues for * Portions of southeast North Carolina and northeast South Carolina, including the following areas, in southeast North Carolina, Bladen, Coastal Brunswick, Coastal New Hanover, Coastal Pender, Columbus, Inland Brunswick, Inland New Hanover, Inland Pender and Robeson. In northeast South Carolina, Central Horry, Coastal Georgetown, Coastal Horry, Darlington, Dillon, Florence, Inland Georgetown, Marion, Marlboro, Northern Horry and Williamsburg. * Through Monday morning. * Showers with embedded thunderstorms, enhanced by Tropical Depression Claudette that may become a Tropical Storm by the time it reaches the Carolina Coasts, will overspread the area today through tonight. The heaviest rainfall will occur tonight into early Monday which may result in flash flooding. Expect widespread 1 to 3 inch rainfall amounts with isolated higher amounts possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. You should closely monitor this potentially dangerous weather situation. Be prepared to take action should Flash Flood Warnings be issued for your area, and never drive through flooded roadways. && $$ 31
663 WGUS62 KILM 201921 FFAILM Flood Watch National Weather Service Wilmington NC 321 PM EDT Sun Jun 20 2021 NCZ087-096-099-105>110-SCZ017-023-024-032-033-039-054>056-058-059- 210330- /O.CON.KILM.FF.A.0002.000000T0000Z-210621T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Robeson-Bladen-Columbus-Inland Pender-Coastal Pender-Inland New Hanover-Coastal New Hanover-Inland Brunswick-Coastal Brunswick- Marlboro-Darlington-Dillon-Florence-Marion-Williamsburg-Coastal Horry-Inland Georgetown-Coastal Georgetown-Central Horry-Northern Horry- Including the cities of Bennettsville, Carolina Beach, Boiling Spring Lakes, Shallotte, Burgaw, Lumberton, Masonboro, Georgetown, Murrells Inlet, Seagate, Bladenboro, Kingstree, Garden City, Oak Island, Myrtle Beach, Mullins, Little River, Southport, Socastee, Loris, Ogden, Wilmington, Lake Waccamaw, Surf City, McColl, Chadbourn, North Myrtle Beach, Hartsville, Green Sea, Leland, Tabor City, Whiteville, Myrtle Grove, Conway, Dillon, North Hartsville, Bucksport, Longs, Long Beach, Marion, Darlington, Andrews, Aynor, Sunset Beach, Florence, and Elizabethtown 321 PM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... The Flash Flood Watch continues for * Portions of southeast North Carolina and northeast South Carolina, including the following areas, in southeast North Carolina, Bladen, Coastal Brunswick, Coastal New Hanover, Coastal Pender, Columbus, Inland Brunswick, Inland New Hanover, Inland Pender and Robeson. In northeast South Carolina, Central Horry, Coastal Georgetown, Coastal Horry, Darlington, Dillon, Florence, Inland Georgetown, Marion, Marlboro, Northern Horry and Williamsburg. * Through Monday morning. * Showers with embedded thunderstorms, enhanced by Tropical Depression Claudette that may become a Tropical Storm by the time it reaches the Carolina coast, will overspread the area into tonight. The heaviest rainfall will occur tonight into early Monday which may result in flash flooding. Expect widespread 1 to 3 inch rainfall amounts with isolated higher amounts possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. You should closely monitor this potentially dangerous weather situation. Be prepared to take action should Flash Flood Warnings be issued for your area, and never drive through flooded roadways. && $$ 31
123 WGUS62 KILM 210205 FFAILM Flood Watch National Weather Service Wilmington NC 1005 PM EDT Sun Jun 20 2021 NCZ087-096-099-105>110-SCZ017-023-024-032-033-039-054>056-058-059- 210315- /O.CAN.KILM.FF.A.0002.000000T0000Z-210621T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Robeson-Bladen-Columbus-Inland Pender-Coastal Pender-Inland New Hanover-Coastal New Hanover-Inland Brunswick-Coastal Brunswick- Marlboro-Darlington-Dillon-Florence-Marion-Williamsburg-Coastal Horry-Inland Georgetown-Coastal Georgetown-Central Horry-Northern Horry- Including the cities of Bennettsville, Carolina Beach, Boiling Spring Lakes, Shallotte, Burgaw, Lumberton, Masonboro, Georgetown, Murrells Inlet, Seagate, Bladenboro, Kingstree, Garden City, Oak Island, Myrtle Beach, Mullins, Little River, Southport, Socastee, Loris, Ogden, Wilmington, Lake Waccamaw, Surf City, McColl, Chadbourn, North Myrtle Beach, Hartsville, Green Sea, Leland, Tabor City, Whiteville, Myrtle Grove, Conway, Dillon, North Hartsville, Bucksport, Longs, Long Beach, Marion, Darlington, Andrews, Aynor, Sunset Beach, Florence, and Elizabethtown 1005 PM EDT Sun Jun 20 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of southeast North Carolina and northeast South Carolina, including the following areas, in southeast North Carolina, Bladen, Coastal Brunswick, Coastal New Hanover, Coastal Pender, Columbus, Inland Brunswick, Inland New Hanover, Inland Pender and Robeson. In northeast South Carolina, Central Horry, Coastal Georgetown, Coastal Horry, Darlington, Dillon, Florence, Inland Georgetown, Marion, Marlboro, Northern Horry and Williamsburg has been cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$ SHK
The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 5:20 AM EDT | Tropical Storm Warning | ILM | Brunswick, New Hanover, Pender | 27 hr |
| Jun 20, 5:21 AM EDT | Special Weather Statement | ILM | Columbus | 24 min |
| Jun 20, 5:36 AM EDT | Small Craft Advisory | ILM | 5 hr | |
| Jun 20, 6:20 AM EDT | Special Weather Statement | ILM | New Hanover | 25 min |
| Jun 20, 6:40 AM EDT | Special Marine Warning | ILM | 35 min | |
| Jun 20, 7:16 PM EDT | Special Weather Statement | ILM | Robeson | 44 min |
| Jun 20, 7:55 PM EDT | Beach Hazards Statement | ILM | New Hanover, Pender | 24 hr |
| Jun 20, 7:55 PM EDT | Rip Current Statement | ILM | Brunswick | 24 hr |
| Jun 20, 6:28 PM EDT | Special Weather Statement | ILM | Florence, Georgetown, Williamsburg | 47 min |
| Jun 20, 6:57 PM EDT | Special Weather Statement | ILM | Darlington, Marlboro | 18 min |
Nearby
Flash Flood Watches in South Carolina, 2021Flash Flood Watches in North 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.