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Flash Flood and High Wind Threats in the West

Several rounds of thunderstorms repeating over the same locations may result in localized flash flooding through Wednesday night in southeastern California and southwest Arizona. High winds may down trees and power lines in portions of California, Montana, Colorado and Wyoming into Wednesday. Read More >

NWS Mt Holly Weather Briefing Page

 

Click HERE for the Latest Hazardous Weather Briefing

Suggestions for improvement are welcome.

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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

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Total Water Level Main Page

Manasquan, NJ (MSNN4)

Total Water Level Obs/Forecasts Scaled to Records

No Plot Available

No Plot Available

Total Water Level Main Page

Barnegat Light, NJ (BGLN4)

Total Water Level Obs/Forecasts Scaled to Records

No Plot Available

No Plot Available

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

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Total Water Level Main Page

Cape May, NJ (PABN4)

Total Water Level Obs/Forecasts Scaled to Records

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Total Water Level Main Page

Bivalve, NJ (BVVN4)

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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Lewes, DE (LWSD1)

Total Water Level Obs/Forecasts Scaled to Records

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Tolchester Beach, MD (TCBM2)

Total Water Level Obs/Forecasts Scaled to Records

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Claiborne, MD (CLNM2)

Total Water Level Obs/Forecasts Scaled to Records

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Coastal Hazard Message NWS PHI

WHUS41 KPHI 162313
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
613 PM EST Sat Jan 16 2021

NJZ020-026-170015-
/O.CAN.KPHI.CF.S.0002.000000T0000Z-210117T0000Z/
Ocean-Coastal Ocean-
613 PM EST Sat Jan 16 2021

...MINOR FLOODING STATEMENT CANCELLED FOR BARNEGAT BAY...

Water levels have receded below minor flooding thresholds along 
Barnegat Bay, therefore any flooding has ended.

$$

Coastal Hazard Message NWS OKX

WHUS41 KOKX 160911
CFWOKX

Coastal Hazard Message
National Weather Service Upton NY
411 AM EST Sat Jan 16 2021

CTZ009-NYZ071-162000-
/O.EXB.KOKX.CF.S.0002.210116T1700Z-210116T2000Z/
Southern Fairfield-Southern Westchester-
411 AM EST Sat Jan 16 2021

* WHAT...Up to 1 foot of inundation above ground level expected 
  in vulnerable areas near the waterfront and shoreline.

* WHERE...In Connecticut, Southern Fairfield County. In New 
  York, Southern Westchester County.

* WHEN...From noon today to 3 PM EST this afternoon.

* IMPACTS...Brief minor flooding of the more vulnerable 
  locations near the waterfront and shoreline.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

NJZ006-106-108-NYZ074-075-161700-
/O.EXA.KOKX.CF.S.0002.210116T1300Z-210116T1700Z/
Hudson-Eastern Essex-Eastern Union-Richmond (Staten Island)-
Kings (Brooklyn)-
411 AM EST Sat Jan 16 2021

* WHAT...Up to 1 foot of inundation above ground level 
  expected in vulnerable areas near the waterfront and shoreline.

* WHERE...In New Jersey, Hudson, Eastern Essex and Eastern Union 
  Counties. In New York, Richmond (Staten Island) and Kings 
  (Brooklyn) Counties.

* WHEN...From 8 AM this morning to noon EST today.

* IMPACTS...Brief minor flooding of the more vulnerable 
  locations near the waterfront and shoreline. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

NYZ178-179-161700-
/O.CON.KOKX.CF.S.0002.210116T1300Z-210116T1700Z/
Southern Queens-Southern Nassau-
411 AM EST Sat Jan 16 2021

* WHAT...Up to one foot of inundation above ground level 
  expected in vulnerable areas near the waterfront and shoreline.

* WHERE...Southern Nassau and Southern Queens Counties.

* WHEN...From 8 AM this morning to noon EST today.

* IMPACTS...Brief minor flooding of the more vulnerable 
  locations near the waterfront and shoreline. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/nyc

Coastal Hazard Message NWS LWX

WHUS41 KLWX 170343
CFWLWX

Coastal Hazard Message
National Weather Service Baltimore MD/Washington DC
1043 PM EST Sat Jan 16 2021

DCZ001-170445-
/O.CAN.KLWX.CF.Y.0006.000000T0000Z-210117T0600Z/
District of Columbia-
1043 PM EST Sat Jan 16 2021

...COASTAL FLOOD ADVISORY IS CANCELLED...

Water levels have fallen below minor flood stage.

$$

Coastal Hazard Message NWS AKQ

WHUS41 KAKQ 091450
CFWAKQ

Coastal Hazard Message
National Weather Service Wakefield VA
950 AM EST Sat Jan 9 2021

VAZ089-090-093-524-091600-
/O.CAN.KAKQ.CF.S.0003.000000T0000Z-210109T1700Z/
Surry-James City-Isle of Wight-Newport News-
950 AM EST Sat Jan 9 2021

...COASTAL FLOOD STATEMENT IS CANCELLED...

&&

$$

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)

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.