Alert archive / North Carolina / Flash Flood Watches in 2021

Flash Flood Watch 4, NWS Raleigh, NC

July 7, 202131 counties in North Carolina

NWS Raleigh, NC issued this flash flood watch at Jul 7, 2021, 3:01 PM EDT for 31 counties in North Carolina. It took effect at Jul 8, 2021, 6:00 AM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jul 7, 2021, 3:01 PM EDT (19:01 UTC)
In effect from
Jul 8, 2021, 6:00 AM EDT
Expired
Jul 8, 2021, 6:00 PM EDT
In force
12 hr
Issued by
NWS Raleigh, NC
Flood severity
None
All 31 counties

Alamance County, NC, Anson County, NC, Chatham County, NC, Cumberland County, NC, Davidson County, NC, Durham County, NC, Edgecombe County, NC, Forsyth County, NC, Franklin County, NC, Granville County, NC, Guilford County, NC, Halifax County, NC, Harnett County, NC, Hoke County, NC, Johnston County, NC, Lee County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Richmond County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Wayne County, NC, Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 45 km from the middle of the area, began a volume at 19:04 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, 7.0 hours before the alert went out and 93 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1637 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
-14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

765 
WGUS62 KRAH 071901
FFARAH

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Raleigh NC
301 PM EDT Wed Jul 7 2021

NCZ007>011-021>028-038>043-073>078-083>086-088-089-080330-
/O.NEW.KRAH.FF.A.0004.210708T1000Z-210708T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance-
Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake-
Johnston-Wilson-Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson-
Richmond-Scotland-Hoke-Cumberland-Sampson-
Including the cities of Princeville, Selma, Carthage, Apex, 
Goldsboro, Spring Hope, Wilson, Angier, Hillsborough, Asheboro, 
Rockingham, Burlington, Pittsboro, Enfield, Sanford, Thomasville, 
Smithfield, Henderson, Ellerbe, Cary, Dunn, Roanoke Rapids, 
Wadesboro, Albemarle, Nashville, Raeford, Roxboro, Clayton, Hope 
Mills, Aberdeen, Franklinton, Mebane, Lillington, Louisburg, 
Creedmoor, Siler City, Southern Pines, Archdale, Carrboro, Roseboro, 
Kittrell, Lexington, Polkton, Scotland Neck, Oxford, Wagram, High 
Point, Raleigh, Tarboro, Winston-Salem, Clinton, Fayetteville, 
Greensboro, Laurinburg, Rougemont, Rocky Mount, Erwin, Buies Creek, 
Wake Forest, Chapel Hill, Camp Mackall, Spring Lake, Warrenton, 
Troy, Durham, Norlina, Knightdale, Graham, and Pinehurst
301 PM EDT Wed Jul 7 2021

...FLASH FLOOD WATCH IN EFFECT FROM THURSDAY MORNING THROUGH 
THURSDAY AFTERNOON...

The National Weather Service in Raleigh has issued a

* Flash Flood Watch for a portion of central North Carolina, 
  including the following areas, Alamance, Anson, Chatham, 
  Cumberland, Davidson, Durham, Edgecombe, Forsyth, Franklin, 
  Granville, Guilford, Halifax, Harnett, Hoke, Johnston, Lee, 
  Montgomery, Moore, Nash, Orange, Person, Randolph, Richmond, 
  Sampson, Scotland, Stanly, Vance, Wake, Warren, Wayne and Wilson.

* From Thursday morning through Thursday afternoon.

* Showers and thunderstorms will develop across the area on Thursday 
  as the remnants from Tropical Storm Elsa move into North Carolina. 
  Periods of locally heavy rainfall will be possible during the 
  daytime hours on Thursday, with the axis of heaviest rainfall 
  located along US-1. Rainfall amounts across the region will range 
  from 1-3 inches, with locally higher amounts expected where 
  thunderstorms persist.

* Areas which receive excessive rainfall will be susceptible to 
  flash flooding. Low-lying, poor drainage, and normally flood prone 
  areas could become flooded.  Roads in these areas could become 
  flooded and impassable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

Leins
5 follow-up statements
892 
WGUS62 KRAH 080131
FFARAH

Flood Watch
National Weather Service Raleigh NC
931 PM EDT Wed Jul 7 2021

NCZ007>011-021>028-038>043-073>078-083>086-088-089-081015-
/O.CON.KRAH.FF.A.0004.210708T1000Z-210708T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance-
Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake-
Johnston-Wilson-Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson-
Richmond-Scotland-Hoke-Cumberland-Sampson-
Including the cities of Princeville, Selma, Carthage, Apex, 
Goldsboro, Spring Hope, Wilson, Angier, Hillsborough, Asheboro, 
Rockingham, Burlington, Pittsboro, Enfield, Sanford, Thomasville, 
Smithfield, Henderson, Ellerbe, Cary, Dunn, Roanoke Rapids, 
Wadesboro, Albemarle, Nashville, Raeford, Roxboro, Clayton, Hope 
Mills, Aberdeen, Franklinton, Mebane, Lillington, Louisburg, 
Creedmoor, Siler City, Southern Pines, Archdale, Carrboro, Roseboro, 
Kittrell, Lexington, Polkton, Scotland Neck, Oxford, Wagram, High 
Point, Raleigh, Tarboro, Winston-Salem, Clinton, Fayetteville, 
Greensboro, Laurinburg, Rougemont, Rocky Mount, Erwin, Buies Creek, 
Wake Forest, Chapel Hill, Camp Mackall, Spring Lake, Warrenton, 
Troy, Durham, Norlina, Knightdale, Graham, and Pinehurst
931 PM EDT Wed Jul 7 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 6 AM EDT THURSDAY 
THROUGH THURSDAY AFTERNOON...

The Flash Flood Watch continues for

* A portion of central North Carolina, including the following 
  areas, Alamance, Anson, Chatham, Cumberland, Davidson, Durham, 
  Edgecombe, Forsyth, Franklin, Granville, Guilford, Halifax, 
  Harnett, Hoke, Johnston, Lee, Montgomery, Moore, Nash, Orange, 
  Person, Randolph, Richmond, Sampson, Scotland, Stanly, Vance, 
  Wake, Warren, Wayne and Wilson.

* From 6 AM EDT Thursday through Thursday afternoon.

* Heavy rain showers and thunderstorms will develop across the area 
  on Thursday as the remnants from Tropical Storm Elsa move into 
  North Carolina. Periods of locally heavy rainfall will be possible 
  during the daytime hours on Thursday, with the axis of heaviest 
  rainfall located along US-1. Rainfall amounts across the region 
  will range from 1-3 inches, with locally higher amounts expected 
  where thunderstorms persist.

* Areas which receive excessive rainfall will be susceptible to 
  flash flooding. Low-lying, poor drainage, and normally flood prone 
  areas could become flooded.  Roads in these areas could become 
  flooded and impassable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

CBL
317 
WGUS62 KRAH 081009
FFARAH

Flood Watch
National Weather Service Raleigh NC
609 AM EDT Thu Jul 8 2021

NCZ007>011-021>028-038>043-073>078-083>086-088-089-082200-
/O.CON.KRAH.FF.A.0004.000000T0000Z-210708T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance-
Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake-
Johnston-Wilson-Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson-
Richmond-Scotland-Hoke-Cumberland-Sampson-
Including the cities of Princeville, Selma, Carthage, Apex, 
Goldsboro, Spring Hope, Wilson, Angier, Hillsborough, Asheboro, 
Rockingham, Burlington, Pittsboro, Enfield, Sanford, Thomasville, 
Smithfield, Henderson, Ellerbe, Cary, Dunn, Roanoke Rapids, 
Wadesboro, Albemarle, Nashville, Raeford, Roxboro, Clayton, Hope 
Mills, Aberdeen, Franklinton, Mebane, Lillington, Louisburg, 
Creedmoor, Siler City, Southern Pines, Archdale, Carrboro, Roseboro, 
Kittrell, Lexington, Polkton, Scotland Neck, Oxford, Wagram, High 
Point, Raleigh, Tarboro, Winston-Salem, Clinton, Fayetteville, 
Greensboro, Laurinburg, Rougemont, Rocky Mount, Erwin, Buies Creek, 
Wake Forest, Chapel Hill, Camp Mackall, Spring Lake, Warrenton, 
Troy, Durham, Norlina, Knightdale, Graham, and Pinehurst
609 AM EDT Thu Jul 8 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

The Flash Flood Watch continues for

* A portion of central North Carolina, including the following 
  areas, Alamance, Anson, Chatham, Cumberland, Davidson, Durham, 
  Edgecombe, Forsyth, Franklin, Granville, Guilford, Halifax, 
  Harnett, Hoke, Johnston, Lee, Montgomery, Moore, Nash, Orange, 
  Person, Randolph, Richmond, Sampson, Scotland, Stanly, Vance, 
  Wake, Warren, Wayne and Wilson.

* Until 6 PM EDT this evening.

* Heavy rain showers and thunderstorms will develop across the area 
  on Thursday as the remnants from Tropical Storm Elsa move into 
  North Carolina. Periods of locally heavy rainfall will be possible 
  during the daytime hours on Thursday, with the axis of heaviest 
  rainfall located along US-1. Rainfall amounts across the region 
  will range from 1-3 inches, with locally higher amounts expected 
  where thunderstorms persist.

* Areas which receive excessive rainfall will be susceptible to 
  flash flooding. Low-lying, poor drainage, and normally flood prone 
  areas could become flooded.  Roads in these areas could become 
  flooded and impassable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

10
335 
WGUS62 KRAH 081458
FFARAH

Flood Watch
National Weather Service Raleigh NC
1058 AM EDT Thu Jul 8 2021

NCZ007>011-021>028-038>043-073>078-083>086-088-089-082200-
/O.CON.KRAH.FF.A.0004.000000T0000Z-210708T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance-
Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake-
Johnston-Wilson-Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson-
Richmond-Scotland-Hoke-Cumberland-Sampson-
Including the cities of Princeville, Selma, Carthage, Apex, 
Goldsboro, Spring Hope, Wilson, Angier, Hillsborough, Asheboro, 
Rockingham, Burlington, Pittsboro, Enfield, Sanford, Thomasville, 
Smithfield, Henderson, Ellerbe, Cary, Dunn, Roanoke Rapids, 
Wadesboro, Albemarle, Nashville, Raeford, Roxboro, Clayton, Hope 
Mills, Aberdeen, Franklinton, Mebane, Lillington, Louisburg, 
Creedmoor, Siler City, Southern Pines, Archdale, Carrboro, Roseboro, 
Kittrell, Lexington, Polkton, Scotland Neck, Oxford, Wagram, High 
Point, Raleigh, Tarboro, Winston-Salem, Clinton, Fayetteville, 
Greensboro, Laurinburg, Rougemont, Rocky Mount, Erwin, Buies Creek, 
Wake Forest, Chapel Hill, Camp Mackall, Spring Lake, Warrenton, 
Troy, Durham, Norlina, Knightdale, Graham, and Pinehurst
1058 AM EDT Thu Jul 8 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

The Flash Flood Watch continues for

* A portion of central North Carolina, including the following 
  areas, Alamance, Anson, Chatham, Cumberland, Davidson, Durham, 
  Edgecombe, Forsyth, Franklin, Granville, Guilford, Halifax, 
  Harnett, Hoke, Johnston, Lee, Montgomery, Moore, Nash, Orange, 
  Person, Randolph, Richmond, Sampson, Scotland, Stanly, Vance, 
  Wake, Warren, Wayne and Wilson.

* Until 6 PM EDT this evening.

* Showers and isolated thunderstorms will continue as Tropical Storm 
  Elsa moves through the area.  Periods of locally heavy rainfall 
  will be possible through late afternoon, with the axis of heaviest 
  rainfall located along US-1. Storm total rainfall amounts across 
  the region will range from 2-4 inches, with locally higher amounts 
  expected where thunderstorms persist.

* Areas which receive excessive rainfall will be susceptible to 
  flash flooding. Low-lying, poor drainage, and normally flood prone 
  areas could become flooded.  Roads in these areas could become 
  flooded and impassable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

Leins
249 
WGUS62 KRAH 081803
FFARAH

Flood Watch
National Weather Service Raleigh NC
203 PM EDT Thu Jul 8 2021

NCZ021-022-038-039-073>075-083>086-088-089-081915-
/O.CAN.KRAH.FF.A.0004.000000T0000Z-210708T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forsyth-Guilford-Davidson-Randolph-Stanly-Montgomery-Moore-Anson-
Richmond-Scotland-Hoke-Cumberland-Sampson-
Including the cities of Carthage, Albemarle, Asheboro, Rockingham, 
Polkton, Thomasville, Southern Pines, Wagram, Laurinburg, Raeford, 
Ellerbe, Archdale, Lexington, Winston-Salem, Roseboro, High Point, 
Hope Mills, Fayetteville, Greensboro, Clinton, Camp Mackall, Spring 
Lake, Wadesboro, Troy, Aberdeen, and Pinehurst
203 PM EDT Thu Jul 8 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of central North Carolina, 
including the following areas, Anson, Cumberland, Davidson, Forsyth, 
Guilford, Hoke, Montgomery, Moore, Randolph, Richmond, Sampson, 
Scotland and Stanly has been cancelled.

The potential for heavy rainfall associated with Tropical Storm Elsa 
has shifted east and the Flood Watch has been cancelled.

$$

NCZ007>011-023>028-040>043-076>078-082200-
/O.CON.KRAH.FF.A.0004.000000T0000Z-210708T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Person-Granville-Vance-Warren-Halifax-Alamance-Orange-Durham-
Franklin-Nash-Edgecombe-Chatham-Wake-Johnston-Wilson-Lee-Harnett-
Wayne-
Including the cities of Princeville, Selma, Apex, Goldsboro, Spring 
Hope, Wilson, Angier, Hillsborough, Burlington, Pittsboro, Enfield, 
Sanford, Smithfield, Henderson, Cary, Dunn, Roanoke Rapids, 
Nashville, Roxboro, Clayton, Franklinton, Mebane, Lillington, 
Louisburg, Creedmoor, Siler City, Carrboro, Kittrell, Scotland Neck, 
Oxford, Raleigh, Tarboro, Rougemont, Rocky Mount, Erwin, Buies 
Creek, Wake Forest, Chapel Hill, Warrenton, Durham, Norlina, 
Knightdale, and Graham
203 PM EDT Thu Jul 8 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

The Flash Flood Watch continues for

* A portion of central North Carolina, including the following 
  areas, Alamance, Chatham, Durham, Edgecombe, Franklin, Granville, 
  Halifax, Harnett, Johnston, Lee, Nash, Orange, Person, Vance, 
  Wake, Warren, Wayne and Wilson.

* Until 6 PM EDT this evening.

* Showers and isolated thunderstorms will continue through late 
  afternoon as Tropical Storm Elsa moves through the area.  Periods 
  of locally heavy rainfall will be possible, with an additional 1 
  to 2 inches of rain expected from the Triangle northeastward to 
  the NC/VA state line.

* Areas which receive excessive rainfall will be susceptible to 
  flash flooding. Low-lying, poor drainage, and normally flood prone 
  areas could become flooded.  Roads in these areas could become 
  flooded and impassable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

Leins
571 
WGUS62 KRAH 082145
FFARAH

Flood Watch
National Weather Service Raleigh NC
545 PM EDT Thu Jul 8 2021

NCZ007>011-023>028-040>043-076>078-082245-
/O.EXP.KRAH.FF.A.0004.000000T0000Z-210708T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Person-Granville-Vance-Warren-Halifax-Alamance-Orange-Durham-
Franklin-Nash-Edgecombe-Chatham-Wake-Johnston-Wilson-Lee-Harnett-
Wayne-
Including the cities of Princeville, Selma, Apex, Goldsboro, Spring 
Hope, Wilson, Angier, Hillsborough, Burlington, Pittsboro, Enfield, 
Sanford, Smithfield, Henderson, Cary, Dunn, Roanoke Rapids, 
Nashville, Roxboro, Clayton, Franklinton, Mebane, Lillington, 
Louisburg, Creedmoor, Siler City, Carrboro, Kittrell, Scotland Neck, 
Oxford, Raleigh, Tarboro, Rougemont, Rocky Mount, Erwin, Buies 
Creek, Wake Forest, Chapel Hill, Warrenton, Durham, Norlina, 
Knightdale, and Graham
545 PM EDT Thu Jul 8 2021

...FLASH FLOOD WATCH WILL EXPIRE AT 6 PM EDT THIS EVENING...

The Flash Flood Watch for a portion of central North Carolina, 
including the following areas, Alamance, Chatham, Durham, Edgecombe, 
Franklin, Granville, Halifax, Harnett, Johnston, Lee, Nash, Orange, 
Person, Vance, Wake, Warren, Wayne and Wilson will expire at 6 PM 
EDT this evening.

The Flood Watch is cancelled. The heavy rain has shifted northeast 
of the area and flooding is no longer expected to pose a threat. 
Please continue to heed remaining road closures.

$$

CBL

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 3:33 PM EDTSpecial Weather StatementRAHSampson42 min
Jul 7, 4:36 PM EDTSpecial Weather StatementRAHCumberland24 min
Jul 7, 4:41 PM EDTSpecial Weather StatementRAHRichmond34 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.