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whus46 ksew 190918

coastal hazard message
national weather service seattle wa
118 am pst sat jan 19 2019

western whatcom county-
118 am pst sat jan 19 2019

...coastal flood advisory remains in effect until 5 pm pst this

* coastal flooding...the combination of high astronomical tides,
  tidal anomalies due to a passing storm system, strong
  southwesterly winds, and waves will produce some minor coastal
  flooding around the two high tides today. 

* some affected locations...sandy point and birch bay.

* timing...2-3 hours around the high tides today.

* tide info...high tides at cherry point are about 5 am pst this
  morning and 2 pm pst this afternoon. the predicted high tide
  about 5 am is 9.6 ft above mean-low low water (mllw), and the
  predicted high tide about 2 pm is 9.13 ft above mllw. both tides
  are expected to be between 0.6 and 1.5 feet above the predicted
  tide table values due to low atmospheric pressure and wave 

* impacts...strong southwest winds over the strait of georgia will
  produce waves of 3 to 5 feet that will crash over seawalls and 
  other protective barriers and potentially impact already damaged
  roadways around the high tides. 

precautionary/preparedness actions...

a coastal flood advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.



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