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>Coastal/Lakeshore Hazard Messages

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whus46 klox 170120
cfwlox
916 

coastal hazard message
national weather service los angeles/oxnard ca
520 pm pst tue jan 16 2018

...an extended period of high surf will affect west and northwest
facing beaches through saturday evening...

...damaging warning level surf likely for the central coast
beginning thursday afternoon...

.strong storms in the gulf of alaska have created a series of
long period west-northwest swells that will move through the 
southwest california coastal waters this week. the large swells 
will bring an extended period of high surf to area beaches through
saturday evening. the largest and most energetic swell is 
expected to arrive to the central coast by thursday afternoon, 
likely bringing damaging warning level surf of 20 feet or greater.

caz034-035-171200-
/o.new.klox.su.w.0001.180118t2000z-180121t0400z/
/o.ext.klox.su.y.0003.000000t0000z-180118t2000z/
san luis obispo county central coast-
santa barbara county central coast-
520 pm pst tue jan 16 2018

...high surf advisory now in effect until noon pst thursday...
...high surf warning in effect from noon thursday to 8 pm pst
saturday...

the national weather service in los angeles/oxnard has issued a
high surf warning, which is in effect from noon thursday to 8 pm
pst saturday. 

* surf and timing...high surf ranging between 10 and 16 feet will
  continue along the central coast through wednesday night...with
  local sets as high as 18 feet through tonight. another round of
  even larger and potentially damaging surf is expected to peak
  thursday afternoon into friday. during this time, breakers of 
  15 to 20 feet will be common with locally higher sets possible.
 
* impacts...large, powerful, and dangerous waves with strong
  currents will create an increased risk in drownings. sneaker
  waves can suddenly wash over previously dry beaches and jetties.
  there will be also a high risk of life-threatening rip currents.
  from thursday afternoon into friday, there is an increased
  threat of damaging surf and beach erosion, with breaking waves 
  into the morro bay harbor, and local flooding of low lying beach
  parking lots.

precautionary/preparedness actions...

a high surf advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. swim near a lifeguard. if caught
in a rip current, relax and float. don't swim against the
current. if able, swim in a direction following the shoreline. if
unable to escape, face the shore and call or wave for help.

a high surf warning indicates that dangerous...battering waves
will pound the shoreline. this will result in life-threatening
conditions.

&&

$$
whus46 kmtr 162134
cfwmtr

caz529-530-170600-
/o.new.kmtr.su.w.0001.180118t1200z-180119t0600z/
northern monterey bay-southern monterey bay and big sur coast-
134 pm pst tue jan 16 2018

...high surf warning in effect from 4 am to 10 pm pst thursday...

the national weather service in san francisco has issued a high
surf warning, which is in effect from 4 am to 10 pm pst thursday.

* waves and surf...large westerly swell of 15 to 20 feet with a
  period of 18 to 20 seconds later this week.

* timing...forerunner waves arrive wednesday night with surf
  building through the day on thursday.

* impacts...extreme wave run up is expected with these waves with
  long lulls in between wave sets, which will increase the risk of
  being washed into the sea by a wave. large and dangerous surf
  will also be possible.

precautionary/preparedness actions...

a high surf warning indicates that dangerous...battering wave
will pound the shoreline. this will result in very dangerous
swimming conditions...and deadly rip currents.

&&

$$

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