High Surf Advisory issued January 29 at 8:31PM HST until January 30 at 6:00PM HST by NWS Honolulu HI
...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST FRIDAY FOR NORTH
AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI...
...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST FRIDAY FOR NORTH
FACING SHORES OF MAUI...
...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST FRIDAY FOR WEST
FACING SHORES OF THE BIG ISLAND...
...COASTAL FLOOD STATEMENT IN EFFECT FOR ALL HAWAIIAN ISLANDS...
.Two significant northwest swells are expected to impact the
state over the next few days. The first moderate to large, long
period northwest swell will peak overnight tonight into early
morning Friday. The second overlapping, larger, long period
northwest swell will build in on Friday and peak late Friday into
Saturday before subsiding through the rest of the weekend. The
first swell will produce High Surf Advisory (HSA) conditions
for exposed north and west facing shores. The peak of the second
swell will push surf heights above warning levels from late
Friday through Saturday. A combination of large surf and higher
than predicted water levels will lead to flooding of beaches that
typically remain dry, especially at and around the peak daily
tide.
* WHAT...For north facing shores of Molokai, surf heights 12 to 16
feet, building into the 15 to 25 foot range by Friday afternoon.
For west facing shores of Molokai, surf heights 8 to 12 feet,
building into the 12 to 20 foot range Friday afternoon. For
north facing shores of Maui, surf heights of 10 to 15 feet,
building to 12 to 16 feet by Friday afternoon. For west facing
shores of the Big Island, surf heights building to 6 to 8 feet.
Additionally, a combination of surf and high water levels will
produce nuisance coastal flooding.
* WHERE...For the High Surf Advisory, north and west facing shores
of Molokai, north facing shores of Maui, and west facing shores
of the Big Island. For the Coastal Flood Statement, all
Hawaiian coasts.
* WHEN...For the High Surf Advisory, until 6 PM HST Friday. For
the Coastal Flood Statement, through Monday afternoon.
* IMPACTS...Moderate. Strong breaking waves and strong currents
will make swimming dangerous. Flooding of beaches that are
normally dry, minor coastal erosion, and saltwater inundation.
Avoid driving through flooded roadways. If you are forced to
drive through salt water, be sure to rinse your vehicle with
fresh water. Move electronics, vehicles or other valuables to
higher ground. Monitor vessels to ensure mooring lines don't get
too tight and watch out for overwash around boat ramps. Secure
canoes or other watercraft stowed on beaches.
Heed all advice from ocean safety officials. When in doubt, don't
go out.
Varoitus voimassa pe klo 8:31 - la klo 6:00