Alert archive / North Carolina / Beach Hazards Statements in 2021

Beach Hazards Statement 55, NWS Newport/Morehead City, NC

September 17, 2021Dare County, North Carolina

NWS Newport/Morehead City, NC issued this beach hazards statement at Sep 17, 2021, 8:24 PM EDT for Dare County, North Carolina. It took effect at Sep 18, 2021, 4:47 AM EDT. It was in force for 39 hr.

The area

The counties it named.

The facts

Issued
Sep 17, 2021, 8:24 PM EDT (00:24 UTC)
In effect from
Sep 18, 2021, 4:47 AM EDT
Expired
Sep 19, 2021, 8:00 PM EDT
In force
39 hr
Issued by
NWS Newport/Morehead City, NC

County Dare County, NC

The radar

The Morehead City radar (KMHX), 150 km from the middle of the area, began a volume at 00:25 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, 0.4 hours before the alert went out and 150 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 2021-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 842 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 2021-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
842 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
545 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

245 
WHUS42 KMHX 180024
CFWMHX

Coastal Hazard Message
National Weather Service Newport/Morehead City NC
824 PM EDT Fri Sep 17 2021

NCZ203-205-181000-
/O.EXP.KMHX.BH.S.0054.000000T0000Z-210918T0000Z/
/O.NEW.KMHX.BH.S.0055.210918T1200Z-210919T0000Z/
Northern Outer Banks-Hatteras Island-
824 PM EDT Fri Sep 17 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM EDT SATURDAY
THROUGH SATURDAY EVENING NORTH OF CAPE HATTERAS...


* WHAT...Dangerous rip currents.

* WHERE...The beaches north of Cape Hatteras.

* WHEN...From 8 AM EDT Saturday through Saturday evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

* ADDITIONAL DETAILS...The most likely time for strong rip
  currents to occur is a couple hours either side of low tide,
  which will occur around noon Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Life-threatening rip currents. If caught in a rip current, remain
calm. Swim in a direction following the shoreline. If tired,
float or tread water until out of the rip current. If unable to
escape, face the shore and call or wave for help.

&&

$$

NCZ196-204-180130-
/O.EXP.KMHX.BH.S.0054.000000T0000Z-210918T0000Z/
East Carteret-Ocracoke Island-
824 PM EDT Fri Sep 17 2021

...BEACH HAZARDS STATEMENT HAS EXPIRED...

Surf conditions will improve Saturday, however we are still
expecting a moderate threat of rip current north of Cape Lookout.

$$
3 follow-up statements
099 
WHUS42 KMHX 180847
CFWMHX

Coastal Hazard Message
National Weather Service Newport/Morehead City NC
447 AM EDT Sat Sep 18 2021

NCZ203-205-182100-
/O.EXT.KMHX.BH.S.0055.210918T0847Z-210919T0000Z/
Northern Outer Banks-Hatteras Island-
447 AM EDT Sat Sep 18 2021

...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH THIS EVENING
NORTH OF CAPE HATTERAS...

* WHAT...Dangerous rip currents.

* WHERE...The beaches north of Cape Hatteras.

* WHEN...Through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

* ADDITIONAL DETAILS...The most likely time for strong rip
  currents to occur is a couple hours either side of low tide,
  which will occur around NOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Life-threatening rip currents. If caught in a rip current, remain
calm. Swim in a direction following the shoreline. If tired,
float or tread water until out of the rip current. If unable to
escape, face the shore and call or wave for help.

&&

$$
537 
WHUS42 KMHX 182319
CFWMHX

Coastal Hazard Message
National Weather Service Newport/Morehead City NC
719 PM EDT Sat Sep 18 2021

NCZ203-205-190915-
/O.EXT.KMHX.BH.S.0055.000000T0000Z-210920T0000Z/
Northern Outer Banks-Hatteras Island-
719 PM EDT Sat Sep 18 2021

...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH SUNDAY EVENING
NORTH OF CAPE HATTERAS...

* WHAT...Dangerous rip currents.

* WHERE...The beaches north of Cape Hatteras.

* WHEN...Through Sunday evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

* ADDITIONAL DETAILS...The most likely time for strong rip
  currents to occur is a couple hours either side of low tide,
  which will occur around 1 PM Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Life-threatening rip currents. If caught in a rip current, remain
calm. Swim in a direction following the shoreline. If tired,
float or tread water until out of the rip current. If unable to
escape, face the shore and call or wave for help.

&&

$$
214 
WHUS42 KMHX 190733
CFWMHX

Coastal Hazard Message
National Weather Service Newport/Morehead City NC
333 AM EDT Sun Sep 19 2021

NCZ203-205-200000-
/O.CON.KMHX.BH.S.0055.000000T0000Z-210920T0000Z/
Northern Outer Banks-Hatteras Island-
333 AM EDT Sun Sep 19 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
EVENING...

* WHAT...Dangerous rip currents.

* WHERE...The beaches north of Cape Hatteras.

* WHEN...Through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

* ADDITIONAL DETAILS...The most likely time for strong rip
  currents to occur is a couple hours either side of low tide,
  which will occur around 130 pm.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Life-threatening rip currents. If caught in a rip current, remain
calm. Swim in a direction following the shoreline. If tired,
float or tread water until out of the rip current. If unable to
escape, face the shore and call or wave for help.

&&

$$

Nearby

Beach Hazards Statements in North Carolina, 2021Every beach hazards statement 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.