Oahu Koolau Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Special Statement
Issued: 3:57 PM HST May. 26, 2017 – National Weather Service

... Coastal flooding anticipated in conjunction with high tides
and building South Shore surf...

Coastal flooding impacts associated with record level King tides
will continue each day along all shores through the Memorial Day
weekend. Beaches and shorelines, boat ramps and docks, and
vulnerable low-lying roads and structures will be impacted by
coastal flooding through the late afternoon and early evening
hours.

The following are the daily forecast tide levels and times for
Honolulu which will correspond to coastal flooding impacts. In
parenthesis are the expected surf conditions at the time of high
tide. Be advised that observed tides have been running higher
than these values.

5/26 today 5:07 PM HST 2.5 feet (advisory level South Shore surf)
5/27 Saturday 5:55 PM HST 2.4 feet (advisory level South Shore surf)
5/28 Sunday 6:46 PM HST 2.3 feet (south shore surf gradually lowering)
5/29 Monday 7:40 PM HST 2.1 feet (south shore surf lowering)

Maui County shorelines can expect similar impacts around the
times of high tides. Please visit the website
tidesandcurrents.NOAA.Gov for more information about water levels
in your area.

In addition to the coastal flooding impacts, a long period south
swell will result in advisory level surf through late Saturday
night and possibly holding into the day on Sunday. The south swell
will continue to build tonight, peaking late tonight and Saturday,
before gradually lowering Saturday night through early next week.
The combination of large surf and high water levels will result
in additional wave run up along the Southern Shores, likely
flooding beaches that typically remain exposed during normal south
swell high surf events. A high surf advisory remains in effect
for south facing shores through early Sunday. Please see the
coastal hazard message (cfwhfo) on our website for more
information regarding surf related hazards along south facing
shores.

Surf and water levels are forecast to gradually trend back toward
normal through the upcoming week.


450 am HST Fri may 26 2017

... Coastal flooding anticipated in conjunction with high tides
and incoming South Shore surf...

Coastal flooding impacts associated with record level King tides
will continue each day along all shores through the Memorial Day
weekend. Beaches and shorelines, boat ramps and docks, and
vulnerable low-lying roads and structures will be impacted by
coastal flooding through the late afternoon and early evening
hours.

The following are the daily forecast tide levels and times for
Honolulu which will correspond to coastal flooding impacts. Be
advised that observed tides have been running higher than these
values.

5/26 Friday 5:07 PM HST 2.5 feet (advisory level South Shore surf)
5/27 Saturday 5:55 PM HST 2.4 feet (advisory level South Shore surf)
5/28 Sunday 6:46 PM HST 2.3 feet (south shore surf gradually lowering)
5/29 Monday 7:40 PM HST 2.1 feet (south shore surf lowering)

Maui County shorelines can expect similar impacts around the
times of high tides. Please visit the website
tidesandcurrents.NOAA.Gov for more information about water levels
in your area.

In addition to the coastal flooding impacts, a long period south
swell will steadily build through the day, peak later this
afternoon around advisory levels and hold through Saturday night
before gradually lowering into next week. The combination of large
surf and high water levels will result in additional wave run up
along the Southern Shores, likely flooding beaches that typically
remain exposed during normal high surf events. A high surf
advisory remains in effect for south facing shores through early
Sunday. Please see the coastal hazard message (cfwhfo) on our
website for more information regarding surf related hazards along
south facing shores.

Surf and water levels are forecast to gradually trend back toward
normal through the upcoming week.


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