NOAA logo  
alert map
Radar valid at 600 pm EST, Feb 23rd 2026

alert legend

MEZ023-NHZ014-230200-
/O.UPG.KGYX.CF.A.0001.260223T1800Z-260223T2300Z/
/O.NEW.KGYX.CF.W.0001.260223T1800Z-260223T2300Z/
Coastal York-Coastal Rockingham-
1249 PM EST Sun Feb 22 2026

...COASTAL FLOOD WARNING IN EFFECT FROM 1 PM TO 6 PM EST MONDAY...

* WHAT...Minor to moderate coastal flooding impacts expected
due to a large ocean storm for the Monday afternoon high
tide.

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

* WHEN...From 1 PM to 6 PM EST Monday.

* TIDAL FLOOD IMPACTS...Water levels just above flood stage will
result in 1 to 2 feet of inundation in the most flood-prone
locations.

* WAVE IMPACTS...Significant nearshore waves of 10-15 feet will
result in significant beach erosion...splash over...and the
lofting of rocks and ice onto shoreline roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

&&

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

Seavey Island / Portsmouth NH
MLLW Categories - Minor 11.5 ft, Moderate 12.5 ft, Major 13.5 ft
MHHW Categories - Minor 2.6 ft, Moderate 3.6 ft, Major 4.6 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
22/03 PM 8.9 0.0 0.8 3 None
23/03 AM 10.8 1.9 1.9 5-7 None
23/04 PM 10.6 1.7 2.9 12-14 Minor-Mdt
24/04 AM 10.0 1.1 1.2 12 None
24/04 PM 6.8 -2.1 -0.4 7-8 None
25/05 AM 8.4 -0.5 -0.2 4 None

Hampton Harbor NH
MLLW Categories - Minor 11.0 ft, Moderate 12.0 ft, Major 13.0 ft
MHHW Categories - Minor 1.4 ft, Moderate 2.4 ft, Major 3.4 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
22/03 PM 9.3 -0.3 0.8 1 None
23/03 AM 11.1 1.5 1.9 1 Minor
23/04 PM 11.0 1.4 3.0 1 Minor-Mdt
24/04 AM 10.2 0.6 1.2 1 None
24/05 PM 7.0 -2.6 -0.6 1 None
25/05 AM 8.6 -1.0 -0.2 1 None

&&

iNWS is an experimental service intended for NWS core partners, including emergency managers, community leaders and other government agencies only.