Alert archive / North Carolina / Flash Flood Warnings in 2021
Flash Flood Warning 4, NWS Newport/Morehead City, NC
NWS Newport/Morehead City, NC issued this flash flood warning at Aug 4, 2021, 7:04 AM EDT for Dare County, Hyde County, North Carolina. It was in force for 3 hr. 7 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
- Aug 4, 2021, 7:04 AM EDT (11:04 UTC)
- Expired
- Aug 4, 2021, 10:15 AM EDT
- In force
- 3 hr
- Issued by
- NWS Newport/Morehead City, NC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Dare County, NC, Hyde County, NC
The radar
The Morehead City radar (KMHX), 137 km from the middle of the area, began a volume at 11:08 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 |
|---|---|---|---|
| Aug 4, 8:00 AM EDT | FLASH FLOOD | Ocracoke Village, NC | MORE THAN 3 FEET OF WATER ALONG BACK ROAD NEAR OCRACOKE COFFEE COMPANY. ROAD IMPASSABLE DUE TO DEEP WATER. VIDEO POSTED ON SOCIAL MEDIA. |
| Aug 4, 10:00 AM EDT | FLOOD | 1 S Ocracoke Lighthouse, NC | SIGNIFICANT PONDING OF WATER ON SOME FLAT/POORLY DRAINED BEACH FRONT AREAS NEAR SOUTH POINT ON OCRACOKE. |
| Aug 4, 10:00 AM EDT | FLOOD | 1 Ssw Cape Hatteras Lig, NC | 100% OF THE CAPE POINT CAMPGROUND IS UNDER WATER. SIGNIFICANT PONDING OF WATER ON SOME FLAT/POORLY DRAINED BEACH FRONT AREAS NEAR CAPE POINT. |
| Aug 4, 10:00 AM EDT | FLOOD | 3 Ene Ocracoke Village, NC | 75% OF THE OCRACOKE CAMPGROUND IS UNDER WATER. |
| Aug 4, 10:00 AM EDT | FLASH FLOOD | 1 S Ocracoke Lighthouse, NC | CORRECTS PREVIOUS FLOOD REPORT FROM 1 S OCRACOKE LIGHTHOUSE. SIGNIFICANT PONDING OF WATER ON SOME FLAT/POORLY DRAINED BEACH FRONT AREAS NEAR SOUTH POINT ON OCRACOKE. |
| Aug 4, 10:00 AM EDT | FLASH FLOOD | 1 Ssw Cape Hatteras Lig, NC | CORRECTS PREVIOUS FLOOD REPORT FROM 1 SSW CAPE HATTERAS LIGHTHOUSE. 100% OF THE CAPE POINT CAMPGROUND IS UNDER WATER. SIGNIFICANT PONDING OF WATER ON SOME FLAT/POORLY DRAINED BEACH FRONT AREAS NEAR CAPE POINT. |
| Aug 4, 10:00 AM EDT | FLASH FLOOD | 3 Ene Ocracoke Village, NC | CORRECTS PREVIOUS FLOOD REPORT FROM 3 ENE OCRACOKE VILLAGE. 75% OF THE OCRACOKE CAMPGROUND IS UNDER WATER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Newport, NC (KMHX), launched 00:00Z, 11.1 hours before the alert went out and 137 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
- 162 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 481 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted.
031
WGUS52 KMHX 041104
FFWMHX
NCC055-095-041415-
/O.NEW.KMHX.FF.W.0004.210804T1104Z-210804T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Newport/Morehead City NC
704 AM EDT Wed Aug 4 2021
The National Weather Service in Newport/Morehead City has issued a
* Flash Flood Warning for...
Southern Dare County in eastern North Carolina...
Southeastern Hyde County in eastern North Carolina...
* Until 1015 AM EDT.
* At 704 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. The expected rainfall rate is 1 to 2 inches in 1
hour. Additional rainfall amounts of 1 to 3 inches are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
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...
Frisco, Buxton, Avon, Salvo, Waves, Rodanthe, Avon Pier, Hatteras
Ferry Terminal, Cape Hatteras Lighthouse, Hatteras Island Fishing
Pier, Ocracoke Ferry Terminal and Ocracoke Lighthouse.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3550 7579 3576 7559 3578 7546 3577 7547
3535 7541 3523 7544 3504 7601 3512 7608
3518 7603 3534 7560 3542 7558 3549 7561
3555 7557 3559 7556 3565 7559 3569 7560
3569 7563 3565 7565 3560 7565 3553 7570
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
81 follow-up statement
392
WGUS72 KMHX 041414
FFSMHX
Flash Flood Statement
National Weather Service Newport/Morehead City NC
1014 AM EDT Wed Aug 4 2021
NCC055-095-041424-
/O.EXP.KMHX.FF.W.0004.000000T0000Z-210804T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dare NC-Hyde NC-
1014 AM EDT Wed Aug 4 2021
...FLASH FLOOD WARNING AT 1015 AM EDT THIS MORNING FOR SOUTHERN DARE
AND SOUTHEASTERN HYDE COUNTIES HAS BEEN REPLACED WITH A FLOOD
ADVISORY...
LAT...LON 3550 7579 3576 7559 3578 7546 3577 7547
3535 7541 3523 7544 3504 7601 3512 7608
3518 7603 3534 7560 3542 7558 3549 7561
3555 7557 3559 7556 3565 7559 3569 7560
3569 7563 3565 7565 3560 7565 3553 7570
$$
5The office that day
Everything else NWS Newport/Morehead City, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 8:23 PM EDT | Flash Flood Warning | MHX | Carteret, Craven, Jones, Onslow | 9 hr |
| Aug 3, 8:46 PM EDT | Beach Hazards Statement | MHX | Carteret, Dare, Hyde, Onslow | 23 hr |
| Aug 3, 11:07 PM EDT | Special Marine Warning | MHX | 38 min | |
| Aug 4, 7:13 AM EDT | Flash Flood Warning | MHX | Carteret, Craven, Jones, Onslow | 3 hr |
| Aug 4, 9:20 AM EDT | Special Weather Statement | MHX | Dare | 25 min |
| Aug 4, 10:08 AM EDT | Areal Flood Advisory | MHX | Carteret, Craven, Jones, Onslow | 3 hr |
| Aug 4, 10:14 AM EDT | Areal Flood Advisory | MHX | Dare, Hyde | 3 hr |
| Aug 4, 2:04 PM EDT | Areal Flood Advisory | MHX | Dare, Hyde | 3 hr |
Nearby
Flash Flood Warnings in North Carolina, 2021Every 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.