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Barry Fading Away; Attention Turns To Major Summer Heat Wave

Post-Tropical Barry continues to steadily weaken and will fade away over the next day or two. The decaying system may still produce very heavy rainfall and possible flash flooding from the Lower Mississippi Valley to the Ohio Valley. Attention on the weather then shifts from Barry to a major summer heat wave mid to late week into the weekend, across much of the Central and Eastern states. Read More >

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NWS Mt Holly Weather Briefing Page

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Perth Amboy, NJ (PABN4)

Total Water Level Obs/Forecasts Scaled to Records

No Plot Available

No Plot Available

Total Water Level Main Page

Sandy Hook, NJ (SDHN4)

Total Water Level Obs/Forecasts Scaled to Records

No Plot Available

No Plot Available

Total Water Level Main Page

Manasquan, NJ (MSNN4)

Total Water Level Obs/Forecasts Scaled to Records

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No Plot Available

Total Water Level Main Page

Barnegat Light, NJ (BGLN4)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Atlantic City, NJ (ACYN4)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Ocean City, NJ (ONCN4)

Total Water Level Obs/Forecasts Scaled to Records

No Plot Available

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Total Water Level Main Page

Cape May, NJ (PABN4)

Total Water Level Obs/Forecasts Scaled to Records

No Plot Available

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Total Water Level Main Page

Bivalve, NJ (GRWN4)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Burlington, NJ (BDRN4)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Philadelphia, PA (PHBP1)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Reedy Point, DE (RDYD1)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Bowers Beach, DE (BOWD1)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Lewes, DE (LWSD1)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Chesapeake City, MD (CHCM2)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Tolchester Beach, MD (TCBM2)

Total Water Level Obs/Forecasts Scaled to Records

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Claiborne, MD (CAMM2)

Total Water Level Obs/Forecasts Scaled to Records

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Coastal Hazard Message NWS PHI

WHUS41 KPHI 040547
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
147 AM EDT Thu Jul 4 2019

DEZ001-NJZ016-040700-
/O.EXP.KPHI.CF.Y.0018.000000T0000Z-190704T0600Z/
New Castle-Salem-
147 AM EDT Thu Jul 4 2019

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

High tide has passed, and tidal flooding is receding. Therefore, 
the coastal flood advisory will be allowed to expire.

&&

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

Reedy Point DE
MLLW Categories - Minor 7.2 FT, Moderate 8.2 FT, Major 9.2 FT
MHHW Categories - Minor 1.4 FT, Moderate 2.4 FT, Major 3.4 FT

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  -------- 
 04/01 PM     6.3        0.5        0.8        None    
 05/01 AM     7.5        1.7        0.8       Minor    
 05/02 PM     6.5        0.7        0.9        None    
 06/02 AM     7.4        1.6        0.8       Minor

&&

$$

Coastal Hazard Message NWS OKX

WHUS41 KOKX 051958
CFWOKX

Coastal Hazard Message
National Weather Service New York NY
358 PM EDT Fri Jul 5 2019

...LOCALIZED MINOR COASTAL FLOODING TONIGHT...

NYZ178-179-060600-
/O.NEW.KOKX.CF.S.0023.190706T0200Z-190706T0600Z/
Southern Queens-Southern Nassau-
358 PM EDT Fri Jul 5 2019

...LOCALIZED MINOR COASTAL FLOODING TONIGHT...

* LOCATIONS...Vulnerable coastal locales along the south shore 
  bays of Nassau and Queens Counties.

* TIDAL DEPARTURE...Localized minor coastal flooding from tidal 
  departures of 1 to locally 2 ft above astronomical tides 
  tonight.

* COASTAL FLOOD IMPACTS...Brief minor flooding of the most 
  vulnerable locations near the waterfront and shoreline.

* TIMING...Around the time of high tide tonight.

&&

$$

Coastal Hazard Message NWS LWX

WHUS41 KLWX 120800
CFWLWX

Coastal Hazard Message
National Weather Service Baltimore MD/Washington DC
400 AM EDT Fri Jul 12 2019

MDZ014-120900-
/O.CAN.KLWX.CF.Y.0058.000000T0000Z-190712T1200Z/
Anne Arundel-
400 AM EDT Fri Jul 12 2019

...COASTAL FLOOD ADVISORY IS CANCELLED...

The National Weather Service in Baltimore MD/Washington has
cancelled the Coastal Flood Advisory.

The threat for coastal flooding this morning has passed.

&&

&&

$$

Coastal Hazard Message NWS AKQ

WHUS41 KAKQ 091406
CFWAKQ

Coastal Hazard Message
National Weather Service Wakefield VA
1006 AM EDT Tue Jul 9 2019


VAZ075-077-078-091515-
/O.EXP.KAKQ.CF.S.0022.000000T0000Z-190709T1400Z/
Westmoreland-Northumberland-Lancaster-
1006 AM EDT Tue Jul 9 2019

...NUISANCE TIDAL FLOODING IS NO LONGER A THREAT...

&&

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

LEWISETTA VA
MLLW CATEGORIES - MINOR 3.0 FT, MODERATE 3.5 FT, MAJOR 4.0 FT
MHHW CATEGORIES - MINOR 1.5 FT, MODERATE 2.0 FT, MAJOR 2.5 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT       FT      IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 09/07 AM     2.8        1.3        1.3        2       NONE    
 09/08 PM     2.7        1.2        1.2        1       NONE    
 10/09 AM     2.5        1.0        1.0        1       NONE    
 10/10 PM     2.5        1.0        0.9        1       NONE    
 11/09 AM     2.3        0.8        0.9        1       NONE    
 11/10 PM     2.5        1.0        0.9        1       NONE

DAHLGREN/COLONIAL BEACH VA
MLLW CATEGORIES - MINOR 3.5 FT, MODERATE 4.0 FT, MAJOR 4.5 FT
MHHW CATEGORIES - MINOR 1.6 FT, MODERATE 2.1 FT, MAJOR 2.6 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT       FT      IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 09/10 AM     3.1        1.2        1.3        1       NONE    
 09/10 PM     3.2        1.3        1.3        1       NONE    
 10/10 AM     2.7        0.8        1.0        1       NONE    
 10/11 PM     2.9        1.0        1.0        1       NONE    
 11/12 PM     2.6        0.7        0.9        1       NONE    
 12/12 AM     2.9        1.0        0.9        1       NONE

WINDMILL POINT VA
MLLW CATEGORIES - MINOR 3.0 FT, MODERATE 3.5 FT, MAJOR 4.0 FT
MHHW CATEGORIES - MINOR 1.6 FT, MODERATE 2.1 FT, MAJOR 2.6 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT       FT      IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 09/05 AM     2.7        1.3        1.3        1       NONE    
 09/06 PM     2.6        1.2        1.1        1       NONE    
 10/06 AM     2.3        0.9        1.0        1       NONE    
 10/07 PM     2.4        1.0        0.9        1       NONE    
 11/06 AM     2.1        0.7        0.9        1       NONE    
 11/07 PM     2.4        1.0        0.9        1       NONE

&&

$$

Tides and Coastal Flooding Discussion

No valid coastal flooding discussion is available at this time.

 

Total Water Level Forecasts for tidal locations can be found on our Advanced Hydrologic Prediction Service (AHPS) page.

 

Total Water Level Forecasts are produced by the National Weather Service in Mount Holly, New Jersey for the following tidal locations.

 

Perth Amboy, New Jersey (Arthur Kill)

Sandy Hook, New Jersey (Sandy Hook Bay)

Manasquan, New Jersey (Watson Creek)

Barnegat Light, New Jersey (Barnegat Bay)

Atlantic City, New Jersey (Oceanfront)

Ocean City, New Jersey (Great Egg Harbor)

Cape May, New Jersey (Cape May Harbor)

Bivalve, New Jersey (Cohansey River)

Burlington, New Jersey (Delaware River)

Philadelphia, Pennsylvania (Delaware River)

Reedy Point, Delaware (Delaware River)

Bowers Beach, Delaware (Murderkill River)

Lewes, Delaware (Delaware Bay)

Chesapeake City, Maryland (Chesapeake and Delaware Canal)

Tolchester Beach, Maryland (Chesapeake Bay)

Claiborne, Maryland (Eastern Bay)

 

Our Advanced Hydrologic Prediction Service (AHPS) page also includes information about other tide gauges in our area.  You can find the flood impacts at certain water levels, as well as historic crests and low water values on the AHPS page.

 

The values listed under Flood Impacts refer to the water level at the tide gauge.  The heights are not to be interpreted as an indication of the water level at the actual locations mentioned in the corresponding impact statements.  Those locations are often a number of miles away from the reference gauge.

 

It is important to remember that the impact statements are based on estimates.  A number of factors can cause the flooding associated with a particular tide level to vary somewhat from event to event.  Those factors include rainfall, wave action and the number of tide cycles during which there is an onshore flow.

 

Being that the impact statements are based on estimates, it may be best to place more emphasis on the descriptive categories of flooding rather than focusing on the specific height values associated with flooding at a given location.  The three categories (minor, moderate, major) provide a much better overall picture of the type of tidal flooding that can be expected in the area.

 

In the MINOR category there is flooding of the most vulnerable roadways due to high water and/or wave splash-over.  The majority of roads remain passable.  There is no significant threat to life.  Any impact on property is minimal.  This type of event is covered by a Coastal Flood Advisory.

 

In the MODERATE category there is widespread flooding of roadways due to high water and/or wave action with many roads becoming impassable.  Lives may be at risk when people put themselves in harm’s way.  Some damage to vulnerable structures may occur.  This type of event is covered by a Coastal Flood Warning.

 

In the MAJOR category there is flooding that is severe enough to cause structural damage along with widespread flooding of roadways. Some evacuations become necessary.  Vulnerable homes and businesses may be severely damaged or destroyed.  Numerous roads become impassable and some neighborhoods may be isolated.  The flood waters become a danger to anyone who attempts to cross on foot or in a vehicle.  This type of event is covered by a Coastal Flood Warning which may contain enhanced wording to emphasize the significant threat to life and property.