Marine Weather Message
Issued by NWS Medford, OR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
635
WHUS76 KMFR 171047
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
247 AM PST Wed Jan 17 2018

...Strong winds and dangerous seas today into the weekend...

.A strong front will move through the coastal waters today with
gale to storm force winds, followed by an extremely high and very
steep westerly swell tonight into Thursday, when seas are
expected to peak near 30 feet. Seas will remain heavy through late
this week. Mariners are urged to use extreme caution or remain in
port until this period of stormy weather ends.

PZZ370-180000-
/O.CON.KMFR.SC.Y.0006.000000T0000Z-180117T1500Z/
/O.CON.KMFR.GL.W.0004.180117T1500Z-180118T0300Z/
/O.CON.KMFR.SR.W.0001.180117T1500Z-180118T0300Z/
/O.EXT.KMFR.SE.W.0005.180118T0300Z-180120T1200Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
247 AM PST Wed Jan 17 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST THIS
MORNING...
...STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM
PST THIS EVENING...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 7 PM THIS EVENING TO
4 AM PST SATURDAY...

* Winds...South 15 to 25 kt, rising to south gales 40 to 45 kt
  this morning with occasional storm force gusts of 55 kt. Winds
  will become southwest and ease to 20 to 30 kt tonight into
  Thursday.

* Seas...West swell 10 to 13 feet early this morning. Increasing
  wind waves combined with west swell will produce seas of 20 to
  24 feet from late this morning through this evening. West swell
  will build to a peak of 28 to 32 feet late tonight and Thursday,
  then seas will lower some, but remain elevated through Friday
  night.

* Areas affected and timing...All areas will be affected by gales
  today with storm force winds most likely beyond about 15 NM from
  shore out to around 50 NM from shore. Dangerous seas will impact
  all areas tonight through Friday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Storm Warning means winds of 48 to 63 knots along with
extremely steep and dangerous seas are imminent or occurring.
Recreational boaters should remain in port, or take shelter until
winds and waves subside. Commercial vessels should prepare for
very strong winds and dangerous sea conditions, and consider
remaining in port or taking shelter in port until winds and waves
subside.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

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

&&

$$

PZZ350-356-376-180000-
/O.CON.KMFR.SC.Y.0006.000000T0000Z-180117T1500Z/
/O.CON.KMFR.GL.W.0004.180117T1500Z-180118T0300Z/
/O.EXT.KMFR.SE.W.0005.180118T0300Z-180120T1200Z/
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 Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
247 AM PST Wed Jan 17 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST THIS
MORNING...
...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM
PST THIS EVENING...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 7 PM THIS EVENING TO
4 AM PST SATURDAY...

* Winds...South 20 to 30 kt today, increasing to gales 30 to 40 kt
  with occasional gusts to near 50 kt this afternoon and evening.
  Winds will become southwest and ease to 15 to 25 kt tonight into
  Thursday.

* Seas...West swell 10 to 13 feet early this morning. Increasing
  wind waves combined with west swell will produce seas of 16 to
  22 feet from late this morning through this evening. West swell
  will build to a peak of 26 to 30 feet late tonight and Thursday,
  then seas will lower some, but remain elevated through Friday
  night.

* Areas affected...All areas will be affected by gales and very
  steep, hazardous seas today with the highest winds and steepest
  seas will be beyond 5 NM from shore. Dangerous seas will impact
  all areas tonight through Friday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

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

&&

$$

MAS

http://www.weather.gov/medford



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.