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whus76 kmfr 242144
mwwmfr
103 

urgent - marine weather message
national weather service medford or
244 pm pdt fri mar 24 2017

...hazardous seas continue into the weekend...
...gale possible on sunday...

.steep short period seas will present hazardous conditions for
small crafts and inexperienced mariners through the weekend. a
strong front is expected to bring gale force winds to the waters 
as early as sunday morning. in addition to the strong winds...seas 
area expected to become very steep and hazardous into sunday 
night.

pzz350-356-370-376-251045-
/o.ext.kmfr.sw.y.0031.000000t0000z-170326t0600z/
/o.new.kmfr.gl.a.0011.170326t1600z-170327t0000z/
coastal waters from florence to cape blanco or out 10 nm-
coastal waters from cape blanco or to pt. st. george ca out 10 nm-
waters from florence to cape blanco or from 10 to 60 nm-
waters from cape blanco or to pt. st. george ca from 10 to 60 nm-
244 pm pdt fri mar 24 2017

...small craft advisory for hazardous seas now in effect until
11 pm pdt saturday...
...gale watch in effect from sunday morning through sunday
afternoon...

the national weather service in medford has issued a gale watch...
which is in effect from sunday morning through sunday afternoon. 

* winds...south 35 to 40 knots. gusts to 50 knots.

* seas...steep at 9 to 11 feet with the combination of fresh short
  period southwest swell and a moderate west swell. seas will
  remain high through saturday night with the longer period west
  swell becoming dominant. seas are likely to build further and
  become very steep on sunday as gale develops.

* areas affected...very steep hazardous seas will affect all areas
  through saturday night. gale will affect all areas sunday. 

* view the hazard area in detail at 
  http://weather.gov/medford/hazard 

precautionary/preparedness actions...

a small craft advisory for hazardous seas means that waves will 
be steep enough to create a potential hazard to smaller vessels 
and inexperienced mariners.

a gale watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased, but the specific timing
and/or location is still uncertain. it is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$
whus76 kmfr 241647
mwwmfr

pzz370-250600-
/o.con.kmfr.se.w.0024.000000t0000z-170324t1800z/
/o.ext.kmfr.sw.y.0031.170324t1800z-170325t2100z/
waters from florence to cape blanco or from 10 to 60 nm-
947 am pdt fri mar 24 2017

...hazardous seas warning remains in effect until 11 am pdt this
morning...
...small craft advisory for hazardous seas in effect from 11 am
pdt this morning through 2 pm pdt saturday afternoon...

* seas...very steep at 9 to 11 feet with the combination of fresh
  short period southwest swell and a moderate west swell this
  morning. seas then remain high through saturday afternoon with
  the longer period west swell becoming dominant. another strong 
  front is likely late saturday night.

* areas affected...very steep hazardous seas will affect all areas
  through late this morning. small craft for seas will then affect
  all areas through this afternoon...and the outer waters and near
  cape blanco this evening into saturday afternoon. 

* view the hazard area in detail at 
  http://weather.gov/medford/hazard 

precautionary/preparedness actions...

a hazardous seas warning means very steep and hazardous sea
conditions are imminent or occurring. recreational boaters should
remain in port, or take shelter until waves subside.  commercial
vessels should prepare for rough seas and consider remaining in
port or taking shelter in port until hazardous seas subside.

a small craft advisory for hazardous seas means that waves will
be steep enough to create a potential hazard to smaller vessels
and inexperienced mariners.

&&

$$
whus76 kpqr 242138
mwwpqr

pzz210-250545-
/o.con.kpqr.rb.y.0069.000000t0000z-170325t0100z/
/o.con.kpqr.rb.y.0070.170325t0900z-170325t1300z/
columbia river bar-
238 pm pdt fri mar 24 2017

...small craft advisory for rough bar remains in effect until
6 pm pdt this evening...
...small craft advisory for rough bar remains in effect from 2 am
to 6 am pdt saturday...

* general seas...7 feet tonight and saturday.

* first ebb...seas building to 12 feet with breakers possible 
during the ebb around 315 pm this afternoon.  


* second ebb...seas building to 11 feet with breakers possible 
  during the ebb around 345 am tonight. 

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.

&&

$$
whus76 kpqr 242138
mwwpqr

pzz250-255-275-250545-
/o.ext.kpqr.si.y.0039.000000t0000z-170325t0200z/
/o.ext.kpqr.sw.y.0028.000000t0000z-170325t1200z/
coastal waters from cape shoalwater wa to cascade head or out
10 nm-coastal waters from cascade head to florence or out 10 nm-
waters from cascade head to florence or from 10 to 60 nm-
238 pm pdt fri mar 24 2017

...small craft advisory for winds now in effect until 7 pm pdt
this evening...
...small craft advisory for hazardous seas now in effect until
5 am pdt saturday...

* winds...southwest 20 kt with gusts to 30 kt through early
  evening. 

* seas...combined seas around 11 feet this evening subsiding below
  10 feet early saturday morning.

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.

&&

$$

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