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whhw40 phfo 121405
cfwhfo
280 

coastal hazard message
national weather service honolulu hi
405 am hst thu dec 12 2019


...high surf warning for north and west facing shores of niihau 
kauai oahu molokai and north facing shores of maui... 
...high surf advisory for the southern kona coast of the big 
island...

.a large northwest swell is peaking this morning with warning 
level surf expected along most north and west facing shores from 
kauai to maui, and advisory level surf for areas of the leeward 
big island through today. early morning high tides will bring the
risk of wave runup and overwash along low-lying coastlines 
exposed to the swell. this swell will slowly subside through
saturday. 

hiz001>003-006>009-012-013-017-019-020-130315-
/o.con.phfo.su.w.0017.000000t0000z-191213t0400z/
niihau-kauai windward-kauai leeward-waianae coast-
oahu north shore-oahu koolau-olomana-molokai windward-
molokai leeward-maui windward west-maui central valley-
windward haleakala-
405 am hst thu dec 12 2019

...high surf warning remains in effect until 6 pm hst this
evening...

* what...surf along north and west facing shores of niihau and
  kauai, and north facing shores of oahu, molokai, and maui will
  be 25 to 35 feet today. surf along west facing shores of oahu
  and molokai will rise to 15 to 25 feet today.

* where...north and west facing shores of niihau, kauai, oahu, 
  molokai, and north facing shores of maui.

* when...until 6 pm hst today.

* impacts...high. a full moon high tide early this morning will 
  bring the potential of overwash along coastal roadways. expect 
  ocean water occasionally sweeping across portions of beaches, 
  very strong breaking waves, and strong longshore and rip 
  currents. breaking waves may occasionally impact harbors making 
  navigating the harbor channel dangerous.

* additional details...tide gauges are showing water levels near 
  6/10 of a foot higher than predicted. this added water level 
  will allow waves to reach higher along exposed coastlines.

precautionary/preparedness actions...

large, breaking surf, significant shorebreak, and dangerous
currents make entering the water very hazardous.

anyone entering the water could face significant injury or death.

&&

$$

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