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whus46 kmtr 170406

coastal hazard message
national weather service san francisco bay area
906 pm pdt wed oct 16 2019

...high surf advisory along the coast thursday afternoon through
friday evening...

.a large northwest swell will arrive to the sonoma coast on
thursday before spreading southward to monterey county throughout
the day. wave heights will continue increase into thursday night
and friday. swells will build to 10 to 13 feet with breaking
waves of 15 to 20 feet possible in the surf zone. beachgoers
should use caution along area beaches.

san francisco-
coastal north bay including point reyes national seashore-
san francisco peninsula coast-northern monterey bay-
southern monterey bay and big sur coast-
906 pm pdt wed oct 16 2019

...high surf advisory remains in effect from noon thursday to
9 pm pdt friday...

* waves and surf...seas 8 to 12 feet during the day thursday 
  building to 10 to 13 feet into friday. breaking waves 15 to 20 
  feet possible in the surf zone. 

* timing...12 pm thursday to 9 pm friday. largest waves expected 
  thursday night through late friday morning. 

* impacts...beach visitors, surfers, fisherman and others 
  visiting the beaches should be prepared for building seas with 
  dangerous crashing waves in the surf zone. expect an increased 
  risk of rip currents that can pull swimmers and surfers out to 
  sea. waves will run up beaches faster than usual. sea surface 
  temperatures in the mid to upper 50s will cause hypothermia in 
  a short amount of time. never turn your back to the ocean! 

precautionary/preparedness actions...

a high surf advisory means that high surf will affect beaches in
the advisory area, producing rip currents, localized beach
erosion and sneaker waves.



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