Alert archive / North Carolina / Flash Flood Watches in 2021
Flash Flood Watch 2, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood watch at Mar 27, 2021, 12:50 PM EDT for 17 counties in North Carolina. It was in force for 23 hr.
The area
The counties it named.
The facts
- Issued
- Mar 27, 2021, 12:50 PM EDT (16:50 UTC)
- Expired
- Mar 28, 2021, 12:14 PM EDT
- In force
- 23 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Flood severity
- None
Counties Avery County, NC, Buncombe County, NC, Burke County, NC, Caldwell County, NC, Graham County, NC, Haywood County, NC, Henderson County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mitchell County, NC, Polk County, NC, Rutherford County, NC, Swain County, NC, Transylvania County, NC, Yancey County, NC
The radar
The Greer radar (KGSP), 83 km from the middle of the area, began a volume at 16:51 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 4.8 hours before the alert went out and 244 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
- 2434 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
570 WGUS62 KGSP 271650 FFAGSP URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Greenville-Spartanburg SC 1250 PM EDT Sat Mar 27 2021 ...MULTIPLE ROUNDS OF HEAVY RAIN DUE TO THUNDERSTORMS THIS AFTERNOON THROUGH SUNDAY ACROSS THE MOUNTAINS OF NORTH CAROLINA... .Several rounds of thunderstorms will develop along a warm front this evening and ahead of a cold front Sunday across the mountains of North Carolina. River and stream levels are already at elevated levels or currently experiencing flooding conditions. The additional high rainfall amounts associated with thunderstorms will likely produce new areas of flash flooding. NCZ033-048>053-058-059-062>065-501-503-505-507-509-280100- /O.NEW.KGSP.FF.A.0002.210327T1650Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham- Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson- Caldwell Mountains-Burke Mountains-McDowell Mountains- Rutherford Mountains-Polk Mountains- Including the cities of Ingalls, Banner Elk, Newland, Faust, Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, Poplar, Alarka, Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, Cruso, Cove Creek, Asheville, Black Mountain, Candler, Robbinsville, Stecoah, Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, Highlands, Wolf Mountain, Cashiers, Brevard, Cedar Mountain, Little River, Hendersonville, Fletcher, Dana, East Flat Rock, Tuxedo, Etowah, Patterson, Jonas Ridge, Ashford, Sugar Hill, Woodlawn, Old Fort, Chimney Rock State Park, and Saluda 1250 PM EDT Sat Mar 27 2021 ...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY EVENING... The National Weather Service in Greenville-Spartanburg has issued a * Flash Flood Watch for a portion of western North Carolina, including the following areas, Avery, Buncombe, Burke Mountains, Caldwell Mountains, Graham, Haywood, Henderson, Macon, Madison, McDowell Mountains, Mitchell, Northern Jackson, Polk Mountains, Rutherford Mountains, Southern Jackson, Swain, Transylvania, and Yancey. * Through Sunday evening * Elevated stream levels and high soil moisture combined with additional heavy rainfall could efficiently produce flash flooding conditions. * Mountain terrain will become increasingly saturated with the rain through Sunday. Heavy runoff could trigger isolated landslides. 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. && $$ Krentz
3 follow-up statements
092 WGUS62 KGSP 280045 FFAGSP Flood Watch National Weather Service Greenville-Spartanburg SC 845 PM EDT Sat Mar 27 2021 ...ROUNDS OF HEAVY RAIN DUE TO THUNDERSTORMS POSSIBLE THROUGH SUNDAY ACROSS THE NORTH CAROLINA MOUNTAINS... .Scattered thunderstorms producing heavy rain will remain possible overnight across western North Carolina. Numerous to widespread showers and thunderstorms are then expected to move into the area ahead of a cold front Sunday. River and stream levels are already at elevated levels or currently experiencing flooding conditions. The additional high rainfall amounts associated with thunderstorms will likely produce new areas of flash flooding. NCZ033-048>053-058-059-062>065-501-503-505-507-509-280900- /O.CON.KGSP.FF.A.0002.000000T0000Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson-Caldwell Mountains-Burke Mountains-McDowell Mountains-Rutherford Mountains- Polk Mountains- Including the cities of Banner Elk, Tuckasegee, Burnsville, Waterville, Woodlawn, Walnut, Luada, Celo, Ashford, Cullowhee, Allenstand, Cruso, Micaville, East Flat Rock, Patterson, Etowah, Saluda, Sylva, Ingalls, Asheville, Chimney Rock State Park, Hot Springs, Cashiers, Luck, Cedar Mountain, Little River, Rainbow Springs, Mars Hill, Highlands, Wesser, Old Fort, Candler, Spruce Pine, Stecoah, Kyle, Wolf Mountain, Ramseytown, Faust, Franklin, Jonas Ridge, Swiss, Canton, Black Mountain, Dana, Busick, Cove Creek, Brevard, Tuxedo, Marshall, Almond, Waynesville, Newland, Fletcher, Bryson City, Hendersonville, Robbinsville, Poplar, Alarka, and Sugar Hill 845 PM EDT Sat Mar 27 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING... The Flash Flood Watch continues for * A portion of western North Carolina, including the following areas, Avery, Buncombe, Burke Mountains, Caldwell Mountains, Graham, Haywood, Henderson, Macon, Madison, McDowell Mountains, Mitchell, Northern Jackson, Polk Mountains, Rutherford Mountains, Southern Jackson, Swain, Transylvania and Yancey. * Through Sunday evening. * Elevated stream levels and nearly saturated soils combined with additional heavy rainfall could result in flash flooding developing quickly. * Due to the already elevated stream levels, only an inch or two of additional rainfall could be enough to result in flash flooding along smaller creeks and streams, especially those that have experienced flooding during the past week. Runoff could also trigger isolated landslides in mountainous terrain. Additional heavy rainfall may also slow the improvement in ongoing flood conditions along some main stem rivers. 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. && $$ Lane
756 WGUS62 KGSP 280808 FFAGSP Flood Watch National Weather Service Greenville-Spartanburg SC 408 AM EDT Sun Mar 28 2021 NCZ033-048>053-058-059-062>065-501-503-505-507-509-281615- /O.CON.KGSP.FF.A.0002.000000T0000Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson-Caldwell Mountains-Burke Mountains-McDowell Mountains-Rutherford Mountains- Polk Mountains- Including the cities of Banner Elk, Tuckasegee, Burnsville, Waterville, Woodlawn, Walnut, Luada, Celo, Ashford, Cullowhee, Allenstand, Cruso, Micaville, East Flat Rock, Patterson, Etowah, Saluda, Sylva, Ingalls, Asheville, Chimney Rock State Park, Hot Springs, Cashiers, Luck, Cedar Mountain, Little River, Rainbow Springs, Mars Hill, Highlands, Wesser, Old Fort, Candler, Spruce Pine, Stecoah, Kyle, Wolf Mountain, Ramseytown, Faust, Franklin, Jonas Ridge, Swiss, Canton, Black Mountain, Dana, Busick, Cove Creek, Brevard, Tuxedo, Marshall, Almond, Waynesville, Newland, Fletcher, Bryson City, Hendersonville, Robbinsville, Poplar, Alarka, and Sugar Hill 408 AM EDT Sun Mar 28 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch continues for * A portion of western North Carolina, including the following areas, Avery, Buncombe, Burke Mountains, Caldwell Mountains, Graham, Haywood, Henderson, Macon, Madison, McDowell Mountains, Mitchell, Northern Jackson, Polk Mountains, Rutherford Mountains, Southern Jackson, Swain, Transylvania and Yancey. * Through this evening. * Elevated stream levels and nearly saturated soils combined with additional heavy rainfall could result in flash flooding developing quickly. * Due to the already elevated stream levels, only an inch or two of additional rainfall could be enough to result in flash flooding along smaller creeks and streams, especially those that have experienced flooding during the past week. Runoff could also trigger isolated landslides in mountainous terrain. Additional heavy rainfall may also slow the improvement in ongoing flood conditions along some main stem rivers. 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. && $$ ARK
736 WGUS62 KGSP 281614 FFAGSP Flood Watch National Weather Service Greenville-Spartanburg SC 1214 PM EDT Sun Mar 28 2021 ...THE FLASH FLOOD WATCH HAS BEEN CANCELLED ACROSS THE NORTH CAROLINA MOUNTAINS... NCZ033-048>053-058-059-062>065-501-503-505-507-509-281715- /O.CAN.KGSP.FF.A.0002.000000T0000Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham- Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson- Caldwell Mountains-Burke Mountains-McDowell Mountains- Rutherford Mountains-Polk Mountains- Including the cities of Ingalls, Banner Elk, Newland, Faust, Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, Swiss, Burnsville, Celo, Micaville, Ramseytown, Busick, Spruce Pine, Poplar, Alarka, Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, Cruso, Cove Creek, Asheville, Black Mountain, Candler, Robbinsville, Stecoah, Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, Highlands, Wolf Mountain, Cashiers, Brevard, Cedar Mountain, Little River, Hendersonville, Fletcher, Dana, East Flat Rock, Tuxedo, Etowah, Patterson, Jonas Ridge, Ashford, Sugar Hill, Woodlawn, Old Fort, Chimney Rock State Park, and Saluda 1214 PM EDT Sun Mar 28 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for the North Carolina mountains has been cancelled. Heavy rain has moved east of the watch area, however, a couple rivers remain out of their banks from previous rainfall. $$ Krentz
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 12:51 AM EDT | Areal Flood Advisory | GSP | Rowan | 4 hr |
| Mar 27, 6:05 AM EDT | River Flood Advisory | GSP | Cleveland | 15 hr |
| Mar 27, 11:58 AM EDT | Special Weather Statement | GSP | Graham, Swain | 62 min |
| Mar 27, 12:35 PM EDT | Special Weather Statement | GSP | Madison | 55 min |
| Mar 27, 12:59 PM EDT | Special Weather Statement | GSP | Avery, Mitchell, Yancey | 61 min |
| Mar 27, 1:23 PM EDT | Special Weather Statement | GSP | Buncombe | 67 min |
| Mar 27, 1:30 PM EDT | Severe Thunderstorm Warning | GSP | Buncombe | 45 min |
| Mar 27, 1:32 PM EDT | Severe Thunderstorm Warning | GSP | Davie, Iredell, Rowan | 43 min |
| Mar 27, 1:39 PM EDT | Severe Thunderstorm Warning | GSP | Avery, Burke, Caldwell | 66 min |
| Mar 27, 1:53 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Caldwell, McDowell | 55 min |
| Mar 27, 2:00 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Cleveland, McDowell, Rutherford | 45 min |
| Mar 27, 2:19 PM EDT | Severe Thunderstorm Warning | GSP | Alexander, Caldwell | 29 min |
| Mar 27, 2:29 PM EDT | Special Weather Statement | GSP | Cleveland, Polk, Rutherford | 31 min |
| Mar 27, 2:45 PM EDT | Special Weather Statement | GSP | Alexander, Catawba, Cleveland, Davie, Gaston, Iredell and 1 more | 45 min |
| Mar 27, 3:15 PM EDT | Special Weather Statement | GSP | Davie, Iredell, Rowan | 45 min |
| Mar 27, 3:24 PM EDT | Special Weather Statement | GSP | Cleveland, Gaston, Lincoln | 51 min |
| Mar 27, 3:53 PM EDT | Special Weather Statement | GSP | Cabarrus, Gaston, Mecklenburg, Rowan | 52 min |
| Mar 27, 3:59 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Mecklenburg | 31 min |
| Mar 27, 4:17 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Rowan | 28 min |
| Mar 27, 5:04 PM EDT | Special Weather Statement | GSP | Union | 41 min |
Nearby
Flash 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.