

146 

WHUS41 KOKX 041933

CFWOKX



Coastal Hazard Message

National Weather Service New York NY

233 PM EST Thu Jan 4 2018



...Lingering minor coastal flooding this afternoon...



NYZ078-079-042200-

/O.NEW.KOKX.CF.Y.0002.180104T1933Z-180104T2200Z/

Northwestern Suffolk-Northeastern Suffolk-

233 PM EST Thu Jan 4 2018



...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 5 PM EST THIS

AFTERNOON...



* LOCATIONS...Vulnerable areas along the north shore of Suffolk 

  County and Peconic Bay.



* TIDAL DEPARTURE...1 1/2 to 2 ft above normal.



* TIMING...Until late this afternoon.



* COASTAL FLOOD IMPACTS...Shallow flooding is expected in the 

  most vulnerable locations near the waterfront and shoreline. 

  Expect around 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 of 1 to 2 ft along the 

  north shore of Long Island will result in some beach erosion 

  and wave splashover.



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.



Old Field NY

MLLW CATEGORIES - MINOR 9.2 FT, MODERATE 10.2 FT, MAJOR 12.2 FT

MHHW CATEGORIES - MINOR 1.9 FT, MODERATE 2.9 FT, MAJOR 4.9 FT



             Total      Total    Departure                   

 Day/Time    Tide       Tide     from Norm   Waves    Flood  

            ft MLLW    ft MHHW       ft       ft      Impact 

 --------  ---------  ---------  ---------  -------  --------

 04/01 PM   9.7/10.2   2.3/ 2.8   1.7/ 2.2     4      Minor    



Riverhead NY

MLLW CATEGORIES - MINOR 5.6 FT, MODERATE 6.3 FT, MAJOR 7.1 FT

MHHW CATEGORIES - MINOR 2.3 FT, MODERATE 3.0 FT, MAJOR 3.8 FT



             Total      Total    Departure                   

 Day/Time    Tide       Tide     from Norm   Waves    Flood  

            ft MLLW    ft MHHW       ft       ft      Impact 

 --------  ---------  ---------  ---------  -------  --------    

 04/02 PM   5.2/ 5.7   2.0/ 2.5   1.7/ 2.2     2       Minor



&&



$$



NYZ177-042045-

/O.NEW.KOKX.CF.S.0001.180104T1933Z-180104T2000Z/

Northern Nassau-

233 PM EST Thu Jan 4 2018



...Lingering Minor Coastal Flooding This Afternoon...



Water levels at a few gauges will be right near minor coastal

flooding benchmarks within the next hour.



$$



