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>Marine Weather Warning

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whus76 kmfr 210950
mwwmfr

pzz350-212300-
/o.con.kmfr.sc.y.0040.180421t1200z-180423t0600z/
coastal waters from florence to cape blanco or out 10 nm-
250 am pdt sat apr 21 2018

...small craft advisory remains in effect until 11 pm pdt
sunday...

* winds...north 10 to 15 kt increasing to 20 to 25 kt with gusts
  to 30 kt this afternoon and evening, then persisting into sunday
  evening.

* seas...becoming steep at 10 ft at 14 seconds this morning. steep
  seas of 9 to 11 feet continue this afternoon and evening,
  becoming dominated by short period wind seas. then steep wind
  driven seas will persist through sunday evening. 

* areas affected...all areas will be affected by small craft 
  advisory level conditions.

* view the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/hazard 

precautionary/preparedness actions...

a small craft advisory means that winds and seas will create a
potential hazard to smaller vessels and inexperienced mariners.

&&

$$
whus76 kpqr 211537
mwwpqr

pzz275-220445-
/o.ext.kpqr.sw.y.0037.000000t0000z-180421t2200z/
/o.ext.kpqr.si.y.0057.180421t2200z-180423t1000z/
waters from cascade head to florence or from 10 to 60 nm-
837 am pdt sat apr 21 2018

...small craft advisory for hazardous seas now in effect until
3 pm pdt this afternoon...
...small craft advisory for winds now in effect from 3 pm this
afternoon to 3 am pdt monday...



* winds...north 15 to 20 kt with gusts to 25 kt late this
  afternoon through sunday night. 

* seas...w swell 10 ft at 14 seconds dropping to 7 to 9 ft this
  afternoon. 




precautionary/preparedness actions...

a small craft advisory for wind means that wind speeds of 21 to
33 knots are expected. inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

a small craft advisory for hazardous seas means that waves are
expected to be hazardous to small craft. mariners should avoid
shoaling areas. long period swell can sharpen into large breaking
waves in shoaling areas. it is not unusual for waves to break
much farther from shoaling areas than is normally experienced.
remember, breaking waves can easily capsize even larger vessels.

&&

$$
whus76 kpqr 211537
mwwpqr

pzz210-212200-
/o.ext.kpqr.rb.y.0057.000000t0000z-180421t2200z/
columbia river bar-
837 am pdt sat apr 21 2018

...small craft advisory for rough bar now in effect until 3 pm
pdt this afternoon...



* in the main channel...

* general seas...8 to 10 ft saturday morning gradually subsiding
  over the next 24 hours to 5 to 7 ft on sunday.

* first ebb...around 930 am saturday. seas around 11 ft with 
  breakers likely. 

* second ebb...around 1015 pm saturday. seas around 9 ft.

* third ebb...around 1030 am sunday. seas around 9 ft.




precautionary/preparedness actions...

a small craft advisory for rough bar means that wave conditions
are expected to be hazardous to small craft in or near harbor
entrances.

&&

$$

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