Alert archive / North Carolina / Flash Flood Watches in 2021

Flash Flood Watch 3, NWS Newport/Morehead City, NC

June 20, 202115 counties in North Carolina

NWS Newport/Morehead City, NC issued this flash flood watch at Jun 20, 2021, 3:20 AM EDT for 15 counties in North Carolina. It took effect at Jun 21, 2021, 12:00 AM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jun 20, 2021, 3:20 AM EDT (07:20 UTC)
In effect from
Jun 21, 2021, 12:00 AM EDT
Expired
Jun 21, 2021, 6:41 AM EDT
In force
7 hr
Issued by
NWS Newport/Morehead City, NC
Flood severity
None

Counties Beaufort County, NC, Carteret County, NC, Craven County, NC, Dare County, NC, Duplin County, NC, Greene County, NC, Hyde County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, Onslow County, NC, Pamlico County, NC, Pitt County, NC, Tyrrell County, NC, Washington County, NC

The radar

The Morehead City radar (KMHX), 65 km from the middle of the area, began a volume at 07:22 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

Newport, NC (KMHX), launched 00:00Z, 7.3 hours before the alert went out and 65 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, Newport, NC at 00:00Z on 2021-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 704 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, Newport, NC at 00:00Z on 2021-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.193958Sfc1 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
704 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1197 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
181 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

135 
WGUS62 KMHX 200720
FFAMHX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Newport/Morehead City NC
320 AM EDT Sun Jun 20 2021

NCZ029-044>047-079>081-090>092-094-193>196-198-199-203>205-201930-
/O.NEW.KMHX.FF.A.0003.210621T0400Z-210621T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Martin-Pitt-Washington-Tyrrell-Mainland Dare-Greene-Beaufort-
Mainland Hyde-Duplin-Lenoir-Jones-Pamlico-Northern Craven-Southern
Craven-West Carteret-East Carteret-Inland Onslow-Coastal Onslow-
Northern Outer Banks-Ocracoke Island-Hatteras Island-
Including the cities of La Grange, Morehead City, Pink Hill, Manns 
Harbor, Wallace, Kinston, Pollocksville, North Topsail Beach, 
Hookerton, Roper, Greenville, Fairfield, Hatteras Village, 
Jamesville, Havelock, Oriental, Duck, Belhaven, Snow Hill, 
Richlands, Gum Neck, Kenansville, Bethel, Creswell, Columbia, 
Emerald Isle, Fairfield Harbor, Jacksonville, Aurora, Engelhard, 
Swanquarter, Harkers Island, Ocracoke, Arapahoe, Kitty Hawk, East 
Lake, Beaufort, Oak City, Williamston, Cove City, Manteo, 
Chocowinity, Scranton, River Bend, Sneads Ferry, Walstonburg, Half 
Moon, Ponzer, Stella, Plymouth, Ernul, Newport, Grimesland, 
Rodanthe, Avon, Dover, Trenton, Vanceboro, Atlantic Beach, Cedar 
Island, Buxton, Bayboro, Stumpy Point, New Bern, Kill Devil Hills, 
Washington, Vandemere, Sea Level, Bath, Farmville, Grifton, 
Swansboro, Beulaville, Maysville, Frisco, Nags Head, Faison, 
Robersonville, and Warsaw
320 AM EDT Sun Jun 20 2021

...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY 
MORNING...

The National Weather Service in Newport/Morehead City has issued a

* Flash Flood Watch for a portion of eastern North Carolina, 
  including the following areas, Beaufort, Coastal Onslow, Duplin, 
  East Carteret, Greene, Hatteras Island, Inland Onslow, Jones, 
  Lenoir, Mainland Dare, Mainland Hyde, Martin, Northern Craven, 
  Northern Outer Banks, Ocracoke Island, Pamlico, Pitt, Southern 
  Craven, Tyrrell, Washington and West Carteret.

* From late tonight through Monday morning.

* Tropical moisture will stream into Eastern NC along and ahead of 
  the track of Tropical Cyclone Claudette. Heavy rain will move into 
  the region after midnight tonight, and exit the coast Monday 
  morning. Average rainfall totals of 1 to 2 inches will fall, but 
  locally heavier amounts can be expected.  Heavy rain rates of 2 
  inches per hour or more will affect the Monday morning commute.  
  The heaviest rain will fall near the coast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

&&

$$

TL
3 follow-up statements
336 
WGUS62 KMHX 202002
FFAMHX

Flood Watch
National Weather Service Newport/Morehead City NC
402 PM EDT Sun Jun 20 2021

NCZ029-044>047-079>081-090>092-094-193>196-198-199-203>205-210915-
/O.CON.KMHX.FF.A.0003.210621T0400Z-210621T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Martin-Pitt-Washington-Tyrrell-Mainland Dare-Greene-Beaufort-
Mainland Hyde-Duplin-Lenoir-Jones-Pamlico-Northern Craven-
Southern Craven-West Carteret-East Carteret-Inland Onslow-
Coastal Onslow-Northern Outer Banks-Ocracoke Island-
Hatteras Island-
Including the cities of Williamston, Robersonville, Oak City, 
Jamesville, Greenville, Bethel, Farmville, Grifton, Grimesland, 
Plymouth, Roper, Creswell, Columbia, Gum Neck, Manns Harbor, 
Stumpy Point, East Lake, Snow Hill, Hookerton, Walstonburg, 
Washington, Chocowinity, Belhaven, Bath, Aurora, Engelhard, 
Fairfield, Ponzer, Scranton, Swanquarter, Wallace, Warsaw, 
Kenansville, Beulaville, Faison, Kinston, La Grange, Pink Hill, 
Maysville, Pollocksville, Trenton, Oriental, Bayboro, Arapahoe, 
Vandemere, Vanceboro, Ernul, Dover, Cove City, New Bern, 
River Bend, Fairfield Harbor, Havelock, Morehead City, Newport, 
Atlantic Beach, Emerald Isle, Stella, Beaufort, Harkers Island, 
Sea Level, Cedar Island, Jacksonville, Richlands, Half Moon, 
Swansboro, Sneads Ferry, North Topsail Beach, Duck, Kitty Hawk, 
Kill Devil Hills, Nags Head, Manteo, Ocracoke, Rodanthe, Avon, 
Buxton, Frisco, and Hatteras Village
402 PM EDT Sun Jun 20 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM MIDNIGHT EDT TONIGHT
THROUGH MONDAY MORNING...

The Flash Flood Watch continues for

* A portion of eastern North Carolina, including the following 
  areas, Beaufort, Coastal Onslow, Duplin, East Carteret, 
  Greene, Hatteras Island, Inland Onslow, Jones, Lenoir, 
  Mainland Dare, Mainland Hyde, Martin, Northern Craven, 
  Northern Outer Banks, Ocracoke Island, Pamlico, Pitt, Southern 
  Craven, Tyrrell, Washington, and West Carteret. 

* From midnight EDT tonight through Monday morning

* Tropical moisture will stream into Eastern NC along and ahead 
  of the track of Tropical Cyclone Claudette. Heavy rain will 
  move into the region after midnight tonight, and exit the 
  coast Monday morning. Average rainfall totals of 1 to 2 inches 
  will fall, but locally heavier amounts can be expected. Heavy 
  rain rates of 2 inches per hour or more will affect the Monday 
  morning commute. The heaviest rain will fall near the coast. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Motorists should not attempt to drive around barricades or drive
cars through flooded areas.

&&

$$
431 
WGUS62 KMHX 210812
FFAMHX

Flood Watch
National Weather Service Newport/Morehead City NC
412 AM EDT Mon Jun 21 2021

NCZ029-044>046-079-080-090>092-094-193>196-198-199-210915-
/O.CAN.KMHX.FF.A.0003.000000T0000Z-210621T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Martin-Pitt-Washington-Tyrrell-Greene-Beaufort-Duplin-Lenoir-Jones-
Pamlico-Northern Craven-Southern Craven-West Carteret-East Carteret-
Inland Onslow-Coastal Onslow-
Including the cities of La Grange, Morehead City, Pink Hill, 
Kenansville, Wallace, Kinston, Pollocksville, North Topsail Beach, 
Hookerton, Roper, Greenville, Jamesville, Havelock, Oriental, 
Belhaven, Snow Hill, Richlands, Gum Neck, Bethel, Creswell, 
Columbia, Emerald Isle, Fairfield Harbor, Aurora, Harkers Island, 
Arapahoe, Jacksonville, Beaufort, Oak City, Williamston, Cove City, 
Chocowinity, River Bend, Sneads Ferry, Walstonburg, Half Moon, 
Stella, Plymouth, Ernul, Newport, Grimesland, Dover, Trenton, 
Vanceboro, Atlantic Beach, Cedar Island, Bayboro, New Bern, 
Washington, Vandemere, Sea Level, Bath, Farmville, Grifton, 
Swansboro, Beulaville, Maysville, Faison, Robersonville, and Warsaw
412 AM EDT Mon Jun 21 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of eastern North Carolina, 
including the following areas, Beaufort, Coastal Onslow, Duplin, 
East Carteret, Greene, Inland Onslow, Jones, Lenoir, Martin, 
Northern Craven, Pamlico, Pitt, Southern Craven, Tyrrell, Washington 
and West Carteret has been cancelled.

The Flood Watch is cancelled.

$$

NCZ047-081-203>205-211600-
/O.CON.KMHX.FF.A.0003.000000T0000Z-210621T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mainland Dare-Mainland Hyde-Northern Outer Banks-Ocracoke Island-
Hatteras Island-
Including the cities of Avon, Manns Harbor, Manteo, Stumpy Point, 
Kill Devil Hills, Ocracoke, Hatteras Village, Engelhard, 
Swanquarter, Fairfield, Ponzer, Scranton, Nags Head, Buxton, Duck, 
Frisco, Kitty Hawk, Rodanthe, and East Lake
412 AM EDT Mon Jun 21 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL NOON EDT TODAY...

The Flash Flood Watch continues for

* A portion of eastern North Carolina, including the following 
  areas, Hatteras Island, Mainland Dare, Mainland Hyde, Northern 
  Outer Banks and Ocracoke Island.

* Until Noon EDT today.

* Heavy rain will continue through early this morning before moving 
  off the coast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

&&

$$

TL
719 
WGUS62 KMHX 211041
FFAMHX

Flood Watch
National Weather Service Newport/Morehead City NC
641 AM EDT Mon Jun 21 2021

NCZ047-081-203>205-211145-
/O.CAN.KMHX.FF.A.0003.000000T0000Z-210621T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mainland Dare-Mainland Hyde-Northern Outer Banks-Ocracoke Island-
Hatteras Island-
Including the cities of Avon, Manns Harbor, Manteo, Stumpy Point, 
Kill Devil Hills, Ocracoke, Hatteras Village, Engelhard, 
Swanquarter, Fairfield, Ponzer, Scranton, Nags Head, Buxton, Duck, 
Frisco, Kitty Hawk, Rodanthe, and East Lake
641 AM EDT Mon Jun 21 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of eastern North Carolina, 
including the following areas, Hatteras Island, Mainland Dare, 
Mainland Hyde, Northern Outer Banks and Ocracoke Island has been 
cancelled.

The Flood Watch is cancelled. Flooding is no longer expected to pose 
a threat. Please continue to heed remaining road closures.

$$

TL

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 19, 8:28 PM EDTBeach Hazards StatementMHXCarteret, Dare, Hyde, Onslow24 hr
Jun 20, 4:57 AM EDTTropical Storm WarningMHXCarteret, Dare, Hyde, Onslow27 hr
Jun 20, 5:05 AM EDTSmall Craft AdvisoryMHX4 days
Jun 20, 1:39 PM EDTSpecial Weather StatementMHXPitt51 min
Jun 20, 2:25 PM EDTTornado WarningMHXMartin35 min
Jun 20, 3:48 PM EDTSpecial Weather StatementMHXMartin42 min
Jun 20, 4:13 PM EDTSpecial Marine WarningMHX62 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.