Thursday, April 18, 2019

NWS has issued a Coastal Flood Advisory for tonight's high tide at 8:44 pm

Coastal Hazard Message
National Weather Service New York NY
455 AM EDT Thu Apr 18 2019

...MINOR TO POTENTIALLY LOCALLY MODERATE COASTAL FLOODING THIS
EVENING...

The National Weather Service in New York NY has issued a Coastal
Flood Advisory, which is in effect from 7 PM to 10 PM EDT this
evening.

* LOCATIONS...Vulnerable coastal locales along Jamaica Bay and
  Great South Bay.

* TIDAL DEPARTURE...Minor to potentially locally moderate coastal
  flooding with tidal departures of around 1 ft above
  astronomical tides this evening.

* COASTAL FLOOD IMPACTS...Shallow flooding is expected in the
  most vulnerable locations near the waterfront and shoreline.
  Expect 1 to 2 feet of inundation above ground level in low
  lying, vulnerable areas. Some roads and low lying property
  including parking lots, parks, lawns and homes/businesses with
  basements near the waterfront will experience shallow flooding.

* SHORELINE IMPACTS...Breaking waves will result in beach erosion
  with only minor damage possible to dune structures around the
  times of high tide.

* TIMING...Around the times of hide tide this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

&&

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

Jamaica Bay NY
MLLW CATEGORIES - MINOR 7.5 FT, MODERATE 8.2 FT, MAJOR 9.0 FT
MHHW CATEGORIES - MINOR 1.6 FT, MODERATE 2.3 FT, MAJOR 3.1 FT

             Total      Total    Departure
 Day/Time    Tide       Tide     from Norm   Waves    Flood
            ft MLLW    ft MHHW       ft       ft      Impact
 --------  ---------  ---------  ---------  -------  --------
 18/08 AM   6.8/ 7.3   0.9/ 1.4   0.2/ 0.7    1-2      None
 18/09 PM   7.7/ 8.2   1.8/ 2.2   0.6/ 1.1    1-2     Minor
 19/09 AM   6.4/ 6.9   0.5/ 1.0  -0.2/ 0.2     2       None

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