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Active Weather Alerts

Coastal Flood Advisory
Issued: 7:49 PM May. 16, 2022 – National Weather Service
...COASTAL FLOOD ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
1 AM EDT TUESDAY...

* WHAT...Minor coastal flooding near the time of high tide. Up to
a half foot inundation.

* WHERE...In New Hampshire, Coastal Rockingham County. In Maine,
Coastal York and Coastal Cumberland Counties.

* WHEN...From 11 PM this evening to 1 AM EDT Tuesday.

* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected.

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.

Hampton Harbor NH
MLLW Categories - Minor 11.0 ft, Moderate 12.0 ft, Major 13.0 ft
MHHW Categories - Minor 1.5 ft, Moderate 2.5 ft, Major 3.5 ft

Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
17/12 AM    11.4        1.9        1.0       2-3     Minor
17/01 PM     9.8        0.3        0.7        2       None
18/01 AM    10.9        1.4        0.4        2       None
18/02 PM     9.4       -0.1        0.4        2       None
19/02 AM    10.8        1.3        0.4        1       None

Seavey Island / Portsmouth NH
MLLW Categories - Minor 11.5 ft, Moderate 12.5 ft, Major 13.5 ft
MHHW Categories - Minor 2.7 ft, Moderate 3.7 ft, Major 4.7 ft

Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
17/12 AM    11.0        2.2        1.0        3       None
17/01 PM     9.5        0.7        0.7       2-3      None
18/01 AM    10.5        1.7        0.4        2       None
18/02 PM     9.1        0.3        0.4        2       None
19/02 AM    10.5        1.7        0.4        1       None

Portland ME
MLLW Categories - Minor 12.0 ft, Moderate 13.0 ft, Major 14.0 ft
MHHW Categories - Minor 2.3 ft, Moderate 3.3 ft, Major 4.3 ft

Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
17/12 AM    12.4        2.7        1.0       2-4     Minor
17/01 PM    10.8        1.1        0.8        3       None
18/01 AM    11.9        2.2        0.4        2       None
18/02 PM    10.5        0.8        0.6        2       None
19/02 AM    12.0        2.3        0.6        2      Minor

&&

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