One product issued by NWS for:
Coastal Flood Advisory
Coastal Hazard Message
National Weather Service New York NY
540 PM EST Thu Nov 12 2026
NYZ080-081-130900-
/O.CON.KOKX.CF.Y.0013.261113T1400Z-261113T2000Z/
Southwest Suffolk-Southeast Suffolk-
540 PM EST Thu Nov 12 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 9 AM TO 3 PM EST
FRIDAY...
* WHAT...Up to one half foot of inundation above ground level
expected in vulnerable areas near the waterfront and shoreline.
* WHERE...Southwest Suffolk and Southeast Suffolk Counties.
* WHEN...From 9 AM to 3 PM EST Friday.
* IMPACTS...Minor flooding in the more vulnerable locations near
the waterfront and shoreline of the western reaches of the
Great South Bay in areas such as Lindenhurst, also along the
south fork of Long Island in areas with a northerly exposure
such as Montauk and along Napeague Bay. Some roads and low
lying properties including parking lots, parks, lawns, and
homes and businesses with basements near the waterfront will
experience minor flooding.
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.
GREAT SOUTH BAY AT LINDENHURST NY
MLLW CATEGORIES - MINOR 3.1 FT, MODERATE 3.6 FT, MAJOR 4.1 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
-------- --------- --------- --------- ------- --------
13/12 AM 2.7/ 3.2 1.1/ 1.6 1.6/ 2.0 2 NONE
13/11 AM 3.1/ 3.6 1.5/ 2.0 1.9/ 2.3 2 MINOR
13/11 PM 2.5/ 3.0 0.9/ 1.4 1.8/ 2.2 1 NONE
GREAT SOUTH BAY AT WEST SAYVILLE NY
MLLW CATEGORIES - MINOR 3.1 FT, MODERATE 3.6 FT, MAJOR 4.1 FT
MHHW CATEGORIES - MINOR 1.7 FT, MODERATE 2.2 FT, MAJOR 2.7 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
13/12 AM 2.2/ 2.7 0.9/ 1.4 1.4/ 1.9 2 NONE
13/12 PM 2.7/ 3.2 1.4/ 1.9 1.6/ 2.0 2 NONE-MINOR
14/12 AM 2.2/ 2.7 0.8/ 1.3 1.4/ 1.9 1 NONE
GREAT SOUTH BAY AT WATCH HILL/FIRE ISLAND NY
MLLW CATEGORIES - MINOR 3.2 FT, MODERATE 3.7 FT, MAJOR 4.2 FT
MHHW CATEGORIES - MINOR 1.7 FT, MODERATE 2.2 FT, MAJOR 2.7 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
13/12 AM 2.7/ 3.2 1.2/ 1.7 1.8/ 2.2 2-3 NONE-MINOR
13/12 PM 2.7/ 3.2 1.3/ 1.8 1.6/ 2.0 2 NONE-MINOR
14/12 AM 2.2/ 2.7 0.7/ 1.1 1.4/ 1.9 2 NONE
MORICHES BAY AT EAST MORICHES NY
MLLW CATEGORIES - MINOR 4.3 FT, MODERATE 5.3 FT, MAJOR 6.3 FT
MHHW CATEGORIES - MINOR 1.9 FT, MODERATE 2.9 FT, MAJOR 3.9 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
12/10 PM 3.4/ 3.9 1.0/ 1.5 1.7/ 2.2 1-2 NONE
13/11 AM 3.9/ 4.4 1.5/ 2.0 1.6/ 2.0 2 NONE-MINOR
13/11 PM 3.2/ 3.7 0.8/ 1.3 1.5/ 2.0 1 NONE
SHINNECOCK BAY AT PONQUOQUE NY
MLLW CATEGORIES - MINOR 4.9 FT, MODERATE 5.9 FT, MAJOR 6.9 FT
MHHW CATEGORIES - MINOR 1.7 FT, MODERATE 2.7 FT, MAJOR 3.7 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
12/10 PM 4.0/ 4.5 0.9/ 1.4 1.7/ 2.2 2 NONE
13/10 AM 4.7/ 5.2 1.6/ 2.0 1.7/ 2.2 2 MINOR
13/10 PM 3.7/ 4.2 0.6/ 1.1 1.5/ 2.0 1 NONE
FORT POND BAY AT MONTAUK NY
MLLW CATEGORIES - MINOR 4.1 FT, MODERATE 4.9 FT, MAJOR 6.6 FT
MHHW CATEGORIES - MINOR 1.6 FT, MODERATE 2.4 FT, MAJOR 4.1 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
12/11 PM 3.6/ 4.1 1.1/ 1.6 1.6/ 2.0 1-2 NONE
13/11 AM 3.9/ 4.4 1.4/ 1.9 1.3/ 1.8 2 MINOR
14/12 AM 3.2/ 3.7 0.8/ 1.3 1.2/ 1.7 1 NONE
PECONIC RIVER AT RIVERHEAD NY
MLLW CATEGORIES - MINOR 5.7 FT, MODERATE 6.4 FT, MAJOR 7.2 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
-------- --------- --------- --------- ------- --------
13/02 AM 4.9/ 5.4 1.5/ 2.0 2.3/ 2.8 1-2 NONE
13/01 PM 5.0/ 5.5 1.6/ 2.0 2.2/ 2.7 1-2 NONE
14/02 AM 4.2/ 4.7 0.9/ 1.4 2.0/ 2.5 1 NONE
&&
$$
Be sure to use the MyCoast app to relay photos and reports of
coastal flooding and beach erosion.
For more information from the National Weather Service visit
https://weather.gov/nyc