Alert archive / South Carolina / Beach Hazards Statements in 2021

Beach Hazards Statement 3, NWS Wilmington, NC

April 28, 2021Georgetown County, Horry County, South Carolina; New Hanover County, Pender County, North Carolina

NWS Wilmington, NC issued this beach hazards statement at Apr 28, 2021, 7:36 PM EDT for Georgetown County, Horry County, South Carolina; New Hanover County, Pender County, North Carolina. It took effect at Apr 29, 2021, 6:00 AM EDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Apr 28, 2021, 7:36 PM EDT (23:36 UTC)
In effect from
Apr 29, 2021, 6:00 AM EDT
Expired
Apr 29, 2021, 8:00 PM EDT
In force
14 hr
Issued by
NWS Wilmington, NC

Counties New Hanover County, NC, Pender County, NC, Georgetown County, SC, Horry County, SC

The radar

The Wilmington radar (KLTX), 7 km from the middle of the area, began a volume at 23:36 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 12:00Z, 11.6 hours before the alert went out and 172 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 12:00Z on 2021-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2021-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1715 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

793 
WHUS42 KILM 282336
CFWILM

Coastal Hazard Message
National Weather Service Wilmington NC
736 PM EDT Wed Apr 28 2021

NCZ107-290600-
/O.CON.KILM.CF.Y.0040.210429T0200Z-210429T0600Z/
Inland New Hanover-
736 PM EDT Wed Apr 28 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
THURSDAY...

* WHAT...Up to one foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways.

* WHERE...The lower Cape Fear River including downtown 
  Wilmington.

* WHEN...From 10 PM this evening to 2 AM EDT Thursday.

* IMPACTS...Water is six to 12 inches deep on the lowest parts 
  of Battleship Road and USS North Carolina Road. Water begins 
  to spread on to River Road about a quarter mile south of The 
  Cape Boulevard. In downtown Wilmington, water covers more than 
  a block of Water Street near Market Street with three to six 
  inches of water just south of Market Street.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

&&

Time of high total tides are approximate to the nearest hour.

Cape Fear River at Wilmington
MLLW Categories - Minor 5.5 ft, Moderate 6.7 ft, Major 10.0 ft
MHHW Categories - Minor 0.8 ft, Moderate 2.0 ft, Major 5.3 ft

             Total      Total    Departure                   
 Day/Time    Tide       Tide     from Norm   Waves    Flood  
            ft MLLW    ft MHHW       ft       ft      Impact 
 --------  ---------  ---------  ---------  -------  --------
 29/12 AM     6.1        1.4        0.6        1      Minor    
 29/12 PM     5.1        0.4        0.6        1       None    
 30/01 AM     6.0        1.3        0.6        1      Minor    
 30/01 PM     4.7        0.0        0.4        1       None    
 01/02 AM     5.8        1.1        0.6        1      Minor    
 01/02 PM     5.0        0.3        0.8        1       None

&&

$$

NCZ106-108-SCZ054-056-290600-
/O.NEW.KILM.BH.S.0003.210429T1000Z-210430T0000Z/
Coastal Pender-Coastal New Hanover-Coastal Horry-
Coastal Georgetown-
736 PM EDT Wed Apr 28 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM 6 AM EDT THURSDAY
THROUGH THURSDAY EVENING...

* WHAT...Strong south to north longshore current expected.

* WHERE...In South Carolina, Coastal Horry and Coastal 
  Georgetown Counties. In North Carolina, Coastal Pender and 
  Coastal New Hanover Counties.

* WHEN...From 6 AM EDT Thursday through Thursday evening.

* IMPACTS...Longshore currents can sweep swimmers and surfers 
  into rip currents, piers, jetties, and other hazardous areas. 
  It may sweep swimmers off their feet, making it difficult to 
  return to shore.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution should be used when in or near the water. Check with
lifeguards before entering the ocean for possible hazards you may
be swept into.

&&

$$

19
4 follow-up statements
112 
WHUS42 KILM 290556
CFWILM

Coastal Hazard Message
National Weather Service Wilmington NC
156 AM EDT Thu Apr 29 2021

NCZ107-290700-
/O.EXP.KILM.CF.Y.0040.000000T0000Z-210429T0600Z/
Inland New Hanover-
156 AM EDT Thu Apr 29 2021

...COASTAL FLOOD ADVISORY WILL EXPIRE AT 2 AM EDT EARLY THIS
MORNING...

$$

NCZ106-108-SCZ054-056-300000-
/O.CON.KILM.BH.S.0003.210429T1000Z-210430T0000Z/
Coastal Pender-Coastal New Hanover-Coastal Horry-
Coastal Georgetown-
156 AM EDT Thu Apr 29 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 6 AM EDT THIS
MORNING THROUGH THIS EVENING...

* WHAT...Strong south to north longshore current expected.

* WHERE...In South Carolina, Coastal Horry and Coastal 
  Georgetown Counties. In North Carolina, Coastal Pender and 
  Coastal New Hanover Counties.

* WHEN...From 6 AM EDT this morning through this evening.

* IMPACTS...Longshore currents can sweep swimmers and surfers 
  into rip currents, piers, jetties, and other hazardous areas. 
  It may sweep swimmers off their feet, making it difficult to 
  return to shore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution should be used when in or near the water. Check with
lifeguards before entering the ocean for possible hazards you may
be swept into.

&&

$$
273 
WHUS42 KILM 291029
CFWILM

Coastal Hazard Message
National Weather Service Wilmington NC
629 AM EDT Thu Apr 29 2021

NCZ106-108-SCZ054-056-300000-
/O.CON.KILM.BH.S.0003.000000T0000Z-210430T0000Z/
Coastal Pender-Coastal New Hanover-Coastal Horry-
Coastal Georgetown-
629 AM EDT Thu Apr 29 2021

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

* WHAT...Strong south to north longshore current expected.

* WHERE...In South Carolina, Coastal Horry and Coastal 
  Georgetown Counties. In North Carolina, Coastal Pender and 
  Coastal New Hanover Counties.

* WHEN...Through this evening.

* IMPACTS...Longshore currents can sweep swimmers and surfers 
  into rip currents, piers, jetties, and other hazardous areas. 
  It may sweep swimmers off their feet, making it difficult to 
  return to shore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution should be used when in or near the water. Check with
lifeguards before entering the ocean for possible hazards you may
be swept into.

&&

$$
391 
WHUS42 KILM 291620
CFWILM

Coastal Hazard Message
National Weather Service Wilmington NC
1220 PM EDT Thu Apr 29 2021

NCZ107-300030-
/O.NEW.KILM.CF.Y.0041.210430T0300Z-210430T0700Z/
Inland New Hanover-
1220 PM EDT Thu Apr 29 2021

...COASTAL FLOOD ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
3 AM EDT FRIDAY ALONG THE CAPE FEAR RIVER...

* WHAT...Up to one half foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways.

* WHERE...The lower Cape Fear River including downtown 
  Wilmington.

* WHEN...From 11 PM this evening to 3 AM EDT Friday.

* IMPACTS...North of the Cape Fear Memorial Bridge, one spot on
  Battleship Road will be covered with water about three inches
  deep. The westbound lane of USS North Carolina Road will be
  covered with water up to six inches deep. In downtown
  Wilmington, about a block of Water Street just south of Market
  Street will be covered with about three inches of water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take any necessary actions to protect flood-prone property.

&&

Time of high total tides are approximate to the nearest hour.

Cape Fear River at Wilmington
MLLW Categories - Minor 5.5 ft, Moderate 6.7 ft, Major 10.0 ft
MHHW Categories - Minor 0.8 ft, Moderate 2.0 ft, Major 5.3 ft

             Total      Total    Departure                   
 Day/Time    Tide       Tide     from Norm   Waves    Flood  
            ft MLLW    ft MHHW       ft       ft      Impact 
 --------  ---------  ---------  ---------  -------  --------
 29/12 PM     4.9        0.2        0.4        1       None    
 30/01 AM     5.9        1.2        0.5        1      Minor    
 30/02 PM     4.6       -0.1        0.4        1       None    
 01/02 AM     5.7        1.0        0.5        1      Minor    
 01/02 PM     5.0        0.3        0.8        1       None    
 02/03 AM     5.8        1.1        0.8        1      Minor

&&

$$

NCZ106-108-SCZ054-056-300000-
/O.CON.KILM.BH.S.0003.000000T0000Z-210430T0000Z/
Coastal Pender-Coastal New Hanover-Coastal Horry-
Coastal Georgetown-
1220 PM EDT Thu Apr 29 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...Strong south to north longshore current.

* WHERE...In South Carolina, Coastal Horry and Coastal 
  Georgetown Counties. In North Carolina, Coastal Pender and 
  Coastal New Hanover Counties.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Longshore currents can sweep swimmers and surfers 
  into rip currents, piers, jetties, and other hazardous areas. 
  It may sweep swimmers off their feet, making it difficult to 
  return to shore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution should be used when in or near the water. Check with
lifeguards before entering the ocean for possible hazards you may
be swept into.

&&

$$

9
641 
WHUS42 KILM 300020
CFWILM

Coastal Hazard Message
National Weather Service Wilmington NC
820 PM EDT Thu Apr 29 2021

NCZ106-108-SCZ054-056-300130-
/O.EXP.KILM.BH.S.0003.000000T0000Z-210430T0000Z/
Coastal Pender-Coastal New Hanover-Coastal Horry-
Coastal Georgetown-
820 PM EDT Thu Apr 29 2021

...BEACH HAZARDS STATEMENT HAS EXPIRED...

The beach hazards statement for strong longshore currents has
been allowed to expire at 800 pm edt. 

$$

NCZ107-300700-
/O.CON.KILM.CF.Y.0041.210430T0300Z-210430T0700Z/
Inland New Hanover-
820 PM EDT Thu Apr 29 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 AM EDT
FRIDAY...

* WHAT...Up to one half foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways.

* WHERE...The lower Cape Fear River including downtown 
  Wilmington.

* WHEN...Until 3 AM EDT Friday.

* IMPACTS...North of the Cape Fear Memorial Bridge, one spot on 
  Battleship Road is covered with water about three inches deep. 
  The westbound lane of USS North Carolina Road is covered with 
  water up to six inches deep. In downtown Wilmington, about a 
  block of Water Street just south of Market Street is covered 
  with about three inches of water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

&&

Time of high total tides are approximate to the nearest hour.

Cape Fear River at Wilmington
MLLW Categories - Minor 5.5 ft, Moderate 6.7 ft, Major 10.0 ft
MHHW Categories - Minor 0.8 ft, Moderate 2.0 ft, Major 5.3 ft

             Total      Total    Departure                   
 Day/Time    Tide       Tide     from Norm   Waves    Flood  
            ft MLLW    ft MHHW       ft       ft      Impact 
 --------  ---------  ---------  ---------  -------  --------
 30/01 AM     5.9        1.2        0.5        1      Minor    
 30/01 PM     4.7        0.0        0.4        1       None    
 01/02 AM     5.8        1.1        0.6        1      Minor    
 01/02 PM     5.0        0.3        0.8        1       None    
 02/03 AM     5.8        1.1        0.8        1      Minor    
 02/03 PM     4.8        0.1        0.7        1       None

&&

$$
11

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 3:39 AM EDTCoastal Flood AdvisoryILMNew Hanover22 hr
Apr 28, 3:13 PM EDTSmall Craft AdvisoryILM41 hr

Nearby

Beach Hazards Statements in South Carolina, 2021Beach 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.