Alert archive / North Carolina / Flash Flood Warnings in 2021

Flash Flood Warning 3, NWS Wakefield, VA

April 9, 2021Currituck County, North Carolina

NWS Wakefield, VA issued this flash flood warning at Apr 9, 2021, 8:55 PM EDT for Currituck County, North Carolina. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 9, 2021, 8:55 PM EDT (00:55 UTC)
Expired: Apr 10, 2021, 12:00 AM EDT
In force: 3 hr
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Flood severity: None

County Currituck County, NC

The radar

The Norfolk radar (KAKQ), 97 km from the middle of the area, began a volume at 00:55 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.

What was reported inside it

Time	Report	Where	Remark
Apr 9, 9:35 PM EDT	FLASH FLOOD	1 Ssw Maple, NC	FLASH FLOODING ON POINTERS ROAD REPORTED BY 911 CALL CENTER.
Apr 9, 9:35 PM EDT	FLASH FLOOD	2 Nw Moyock, NC	COCORAHS STATION NC-CC-19 MOYOCK 1.8 SSE REPORTED 4.35 INCHES OF RAIN.
Apr 9, 9:35 PM EDT	FLASH FLOOD	3 Ene Moyock, NC	FLASH FLOODING ON TULLS CREEK ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 0.9 hours before the alert went out and 175 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1 J/kg
Mixed-layer CIN: -256 J/kg
Mixed-layer LCL: 759 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

358 
WGUS51 KAKQ 100055 RRA
FFWAKQ
NCC053-100400-
/O.NEW.KAKQ.FF.W.0003.210410T0055Z-210410T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
855 PM EDT Fri Apr 9 2021

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  Currituck County in northeastern North Carolina...

* Until midnight EDT.

* At 855 PM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  2 and 3 inches of rain have fallen during the past hour. 
  Additional rainfall amounts of 1 to 2.5 inches are possible in the 
  warned area during the next hour. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Currituck, Moyock, Snowden, Sligo, Shawboro, Maple and Barco.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding. Do not stay in areas subject to flooding when 
water begins rising.

&&

LAT...LON 3649 7623 3655 7627 3655 7602 3646 7598
      3638 7595 3641 7616 3643 7616

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL...1-2.5 INCHES IN 1 HOUR

$$

EI

2 follow-up statements

255 
WGUS71 KAKQ 100145
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
945 PM EDT Fri Apr 9 2021

NCC053-100400-
/O.CON.KAKQ.FF.W.0003.000000T0000Z-210410T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Currituck NC-
945 PM EDT Fri Apr 9 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT 
FOR CURRITUCK COUNTY...

At 945 PM EDT, local law enforcement reported flash flooding in 
northeast sections of Currituck County. Between 3 and 5 inches of 
rain have fallen. Additional rainfall amounts of 0.5 to 1 inch are 
possible in the warned area. Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Currituck, Moyock, Snowden, Sligo, Shawboro, Maple and Barco.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding. Do not stay in areas subject to flooding when 
water begins rising.

&&

LAT...LON 3649 7623 3655 7627 3655 7602 3646 7598
      3638 7595 3641 7616 3643 7616

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...0.5-1 INCH IN 1 HOUR

$$

EI

891 
WGUS71 KAKQ 100356
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
1156 PM EDT Fri Apr 9 2021

NCC053-100406-
/O.EXP.KAKQ.FF.W.0003.000000T0000Z-210410T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Currituck NC-
1156 PM EDT Fri Apr 9 2021

...FLASH FLOOD WARNING WILL EXPIRE AT MIDNIGHT EDT TONIGHT FOR 
CURRITUCK COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3649 7623 3655 7627 3655 7602 3646 7598
      3638 7595 3641 7616 3643 7616

$$

Fisher

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 9, 8:11 PM EDT	Special Weather Statement	AKQ	Camden	49 min
Apr 9, 8:26 PM EDT	Areal Flood Advisory	AKQ	Camden, Currituck	3 hr
Apr 9, 8:31 PM EDT	Special Weather Statement	AKQ	Bertie, Gates, Hertford	44 min
Apr 9, 9:08 PM EDT	Special Weather Statement	AKQ	Chowan	52 min
Apr 9, 9:34 PM EDT	Areal Flood Advisory	AKQ	Bertie, Chowan	3 hr

Nearby

Flash Flood Warnings in North Carolina, 2021 Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.