Alert archive / Oregon / Small Craft Advisories in 2018

Small Craft Advisory 101, NWS Medford, OR

December 12, 2018

NWS Medford, OR issued this small craft advisory at Dec 12, 2018, 2:27 AM PST. It took effect at Dec 12, 2018, 10:00 AM PST. It was in force for 42 hr.

The area

The counties it named.

The facts

Issued
Dec 12, 2018, 2:27 AM PST (10:27 UTC)
In effect from
Dec 12, 2018, 10:00 AM PST
Expired
Dec 14, 2018, 4:00 AM PST
In force
42 hr
Issued by
NWS Medford, OR

The text

As transmitted.

599 
WHUS76 KMFR 121027
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
227 AM PST Wed Dec 12 2018

PZZ350-130000-
/O.CAN.KMFR.SC.Y.0099.000000T0000Z-181216T0000Z/
/O.CON.KMFR.SE.W.0052.000000T0000Z-181212T1800Z/
/O.NEW.KMFR.SC.Y.0101.181212T1800Z-181214T1200Z/
/O.NEW.KMFR.GL.A.0027.181214T1200Z-181214T1800Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
227 AM PST Wed Dec 12 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...GALE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY
MORNING...

The National Weather Service in Medford has issued a Gale Watch...
which is in effect from late Thursday night through Friday
morning. 

* Seas...Very steep and west swell dominated at 13 to 16 ft
  through Thursday night. Increasing wind waves Thursday night and
  the arrival of a large and powerful west swell Friday may drive
  combined seas as high as 20 feet by Friday. 

* Winds...South gales 35 to 45 KT Thursday night into Friday.

* Timing...Seas will peak this morning and subside somewhat this
  afternoon through Thursday. Seas rise again Thursday night and
  Friday as south gales develop.

* Areas affected...All areas. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/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 means that winds and seas will 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.

&&

$$

PZZ356-130000-
/O.EXT.KMFR.SC.Y.0098.000000T0000Z-181214T1200Z/
/O.CON.KMFR.SE.W.0052.000000T0000Z-181212T1800Z/
/O.NEW.KMFR.GL.A.0027.181214T1200Z-181214T1800Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
227 AM PST Wed Dec 12 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...GALE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY
MORNING...

The National Weather Service in Medford has issued a Gale Watch...
which is in effect from late Thursday night through Friday
morning. 

* Seas...Very steep and west swell dominated at 13 to 16 ft
  through Thursday night. Increasing wind waves Thursday night and
  the arrival of a large and powerful west swell Friday may drive
  combined seas as high as 20 feet by Friday. 

* Winds...South gales 35 to 45 KT Thursday night into Friday.

* Timing...Seas will peak this morning and subside somewhat this
  afternoon through Thursday. Seas rise again Thursday night and
  Friday as south gales develop.

* Areas affected...All areas. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/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 means that winds and seas will 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.

&&

$$

PZZ370-130000-
/O.CON.KMFR.SE.W.0052.000000T0000Z-181212T1800Z/
/O.EXT.KMFR.SC.Y.0100.181212T1800Z-181214T0600Z/
/O.NEW.KMFR.GL.A.0027.181214T0600Z-181214T1800Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
227 AM PST Wed Dec 12 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING...

The National Weather Service in Medford has issued a Gale Watch...
which is in effect from Thursday evening through Friday morning. 

* Seas...Very steep and west swell dominated at 14 to 17 ft
  through Thursday night. Increasing wind waves Thursday night and
  the arrival of a large and powerful west swell Friday may drive
  combined seas as high as 25 feet by Friday. 

* Winds...South gales 35 to 45 KT Thursday night into Friday.

* Timing...Seas will peak this morning and subside somewhat this
  afternoon through Thursday. Seas rise again Thursday night and
  Friday as south gales develop.

* Areas affected...All areas. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/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 means that winds and seas will 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.

&&

$$

PZZ376-130000-
/O.EXT.KMFR.SC.Y.0098.000000T0000Z-181214T1200Z/
/O.CON.KMFR.SE.W.0052.000000T0000Z-181212T1800Z/
/O.NEW.KMFR.GL.A.0027.181214T0600Z-181214T1800Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
227 AM PST Wed Dec 12 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING...

The National Weather Service in Medford has issued a Gale Watch...
which is in effect from Thursday evening through Friday morning. 

* Seas...Very steep and west swell dominated at 12 to 15 ft
  through Thursday night. Increasing wind waves Thursday night and
  the arrival of a large and powerful west swell Friday may drive
  combined seas as high as 22 feet by Friday. 

* Winds...South gales 35 to 45 KT Thursday night into Friday.

* Timing...Seas will peak this morning and subside somewhat this
  afternoon through Thursday. Seas rise again Thursday night and
  Friday as south gales develop.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/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 means that winds and seas will 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.

&&

$$


http://www.weather.gov/medford
5 follow-up statements
151 
WHUS76 KMFR 122130
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
130 PM PST Wed Dec 12 2018


PZZ356-131200-
/O.CON.KMFR.SC.Y.0098.000000T0000Z-181214T1200Z/
/O.UPG.KMFR.GL.A.0027.181214T1200Z-181214T1800Z/
/O.NEW.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
130 PM PST Wed Dec 12 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...GALE WARNING IN EFFECT FROM 10 PM THURSDAY TO 1 PM PST
FRIDAY...

The National Weather Service in Medford has replaced the Gale
Watch with a Gale Warning...which is in effect from 10 PM 
Thursday to 1 PM PST Friday. 

* Seas...Very steep and west swell dominated at 13 to 16 ft 
  through Thursday night. Increasing wind waves Thursday night 
  and the arrival of a large and powerful west swell Friday may 
  drive combined seas as high as 20 feet by Friday. 

* Winds...South gales 35 to 45 KT Thursday night into Friday.

* Timing...Seas will subside somewhat this afternoon through 
  Thursday. Seas rise again Thursday night and Friday as south 
  gales develop. 

* Areas affected...All areas.

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

&&

$$

PZZ370-131200-
/O.CON.KMFR.SC.Y.0100.000000T0000Z-181214T0600Z/
/O.UPG.KMFR.GL.A.0027.181214T0600Z-181214T1800Z/
/O.NEW.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
130 PM PST Wed Dec 12 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST
THURSDAY...
...GALE WARNING IN EFFECT FROM 10 PM THURSDAY TO 1 PM PST
FRIDAY...

The National Weather Service in Medford has replaced the Gale
Watch with a Gale Warning...which is in effect from 10 PM 
Thursday to 1 PM PST Friday.

* Seas...Very steep and west swell dominated at 14 to 17 ft 
  through Thursday night. Increasing wind waves Thursday night 
  and the arrival of a large and powerful west swell Friday may 
  drive combined seas as high as 25 feet by Friday. 

* Winds...South gales 35 to 45 KT Thursday night into Friday.

* Timing...Seas will subside somewhat this afternoon through 
  Thursday. Seas rise again Thursday night and Friday as south 
  gales develop. 

* Areas affected...All areas.

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

&&

$$

PZZ350-131200-
/O.CON.KMFR.SC.Y.0101.000000T0000Z-181214T1200Z/
/O.UPG.KMFR.GL.A.0027.181214T1200Z-181214T1800Z/
/O.NEW.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
130 PM PST Wed Dec 12 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...GALE WARNING IN EFFECT FROM 10 PM THURSDAY TO 1 PM PST
FRIDAY...

The National Weather Service in Medford has replaced the Gale
Watch with a Gale Warning...which is in effect from 10 PM 
Thursday to 1 PM PST Friday. 

* Seas...Very steep and west swell dominated at 13 to 16 ft
  through Thursday night. Increasing wind waves Thursday night and
  the arrival of a large and powerful west swell Friday may drive
  combined seas as high as 22 feet by Friday. 

* Winds...South gales 35 to 45 KT Thursday night into Friday.

* Timing...Seas will subside somewhat this afternoon through 
  Thursday. Seas rise again Thursday night and Friday as south 
  gales develop. 

* Areas affected...All areas.

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

&&

$$

PZZ376-131200-
/O.CON.KMFR.SC.Y.0098.000000T0000Z-181214T1200Z/
/O.UPG.KMFR.GL.A.0027.181214T0600Z-181214T1800Z/
/O.NEW.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
130 PM PST Wed Dec 12 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...GALE WARNING IN EFFECT FROM 10 PM THURSDAY TO 1 PM PST
FRIDAY...

The National Weather Service in Medford has replaced the Gale
Watch with a Gale Warning...which is in effect from 10 PM 
Thursday to 1 PM PST Friday.

* Seas...Very steep and west swell dominated at 12 to 15 ft
  through Thursday night. Increasing wind waves Thursday night and
  the arrival of a large and powerful west swell Friday may drive
  combined seas as high as 24 feet by Friday.

* Winds...South gales 35 to 45 KT Thursday night into Friday.

* Timing...Seas will subside somewhat this afternoon through 
  Thursday. Seas rise again Thursday night and Friday as south 
  gales develop. 

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

* Areas affected...All areas.

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

&&

$$


http://www.weather.gov/medford
842 
WHUS76 KMFR 130407
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
807 PM PST Wed Dec 12 2018

PZZ356-376-131715-
/O.CON.KMFR.SC.Y.0098.000000T0000Z-181214T1200Z/
/O.CON.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
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-
807 PM PST Wed Dec 12 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...GALE WARNING REMAINS IN EFFECT FROM 10 PM THURSDAY TO 1 PM PST
FRIDAY...

* Seas...Very steep and west swell dominated at 13 to 16 ft
  through Thursday night. Increasing wind waves Thursday night and
  a building powerful west swell Friday may drive combined seas as
  high as 20 ft by Friday. 

* Winds...South to southwest 5 to 15 kt through Thursday
  afternoon, increasing to south gales 35 to 45 kt Thursday night
  into Friday.

* Areas affected...All areas will be affected by conditions
  hazardous to small craft. Then all areas will be affected by
  gales and very steep and hazardous seas.

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

&&

$$

PZZ370-131715-
/O.CON.KMFR.SC.Y.0100.000000T0000Z-181214T0600Z/
/O.CON.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
807 PM PST Wed Dec 12 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST
THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 10 PM THURSDAY TO 1 PM PST
FRIDAY...

* Seas...Very steep and west swell dominated at 14 to 17 ft
  through Thursday night. Increasing wind waves Thursday night and
  a building powerful west swell Friday may drive combined seas 
  as high as 25 feet by Friday. 

* Winds...South to southwest 15 to 25 kt through Thursday 
  afternoon, increasing to south gales 35 to 45 kt Thursday night 
  into Friday.

* Areas affected...All areas will be affected by conditions
  hazardous to small craft. Then all areas will be affected by
  gales and very steep and hazardous seas.

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

&&

$$

PZZ350-131715-
/O.CON.KMFR.SC.Y.0101.000000T0000Z-181214T1200Z/
/O.CON.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
807 PM PST Wed Dec 12 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...GALE WARNING REMAINS IN EFFECT FROM 10 PM THURSDAY TO 1 PM PST
FRIDAY...

* Seas...Very steep and west swell dominated at 13 to 16 ft
  through Thursday night. Increasing wind waves Thursday night and
  a building powerful west swell Friday may drive combined seas 
  as high as 22 feet by Friday. 

* Winds...South to southwest 15 to 25 kt through Thursday 
  afternoon, increasing to south gales 35 to 45 kt Thursday night 
  into Friday.

* Areas affected...All areas will be affected by conditions
  hazardous to small craft. Then all areas will be affected by
  gales and very steep and hazardous seas.

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

&&

$$


http://www.weather.gov/medford
708 
WHUS76 KMFR 131052
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
252 AM PST Thu Dec 13 2018

PZZ356-376-140000-
/O.CON.KMFR.SC.Y.0098.000000T0000Z-181214T1200Z/
/O.CON.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
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-
252 AM PST Thu Dec 13 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM
PST FRIDAY...

* Seas...Very steep and west swell dominated at 13 to 16 ft
  through tonight. Increasing wind waves tonight and a building 
  powerful west swell Friday may drive combined seas as high as 20
  ft by Friday. 

* Winds...Southeast to south 10 to 15 kt today, increasing to
  south gales 35 to 45 KT with occasional storm force gusts to 50
  KT tonight into Friday. 

* Areas affected...All areas. 

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

&&

$$

PZZ370-140000-
/O.CON.KMFR.SC.Y.0100.000000T0000Z-181214T0600Z/
/O.CON.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
252 AM PST Thu Dec 13 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM
PST FRIDAY...

* Seas...Very steep and west swell dominated at 14 to 17 ft
  through tonight. Increasing wind waves tonight and a building
  powerful west swell Friday may drive combined seas as high as 25 
  ft by Friday. 

* Winds...Southeast to south 15 to 25 kt today, increasing to
  south gales 35 to 45 KT with occasional storm force gusts to 50
  KT tonight into Friday. 

* Areas affected...All areas. 

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

&&

$$

PZZ350-140000-
/O.CON.KMFR.SC.Y.0101.000000T0000Z-181214T1200Z/
/O.CON.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
252 AM PST Thu Dec 13 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM
PST FRIDAY...

* Seas...Very steep and west swell dominated at 14 to 17 ft
  through tonight. Increasing wind waves tonight and a building
  powerful west swell Friday may drive combined seas as high as 25 
  ft by Friday. 

* Winds...Southeast to south 15 to 25 kt today, increasing to
  south gales 35 to 45 KT with occasional storm force gusts to 50
  KT tonight into Friday. 

* Areas affected...All areas. 

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

&&

$$


http://www.weather.gov/medford
678 
WHUS76 KMFR 132233
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
233 PM PST Thu Dec 13 2018

PZZ356-376-141200-
/O.CON.KMFR.SC.Y.0098.000000T0000Z-181214T1200Z/
/O.CON.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
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-
233 PM PST Thu Dec 13 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM
PST FRIDAY...

* Seas...Very steep and west swell dominated at 13 to 16 ft this
  evening. Increasing wind waves tonight and a building powerful 
  west swell Friday may drive combined seas as high as 22 ft by 
  Friday morning.
 
* Winds...South 10 to 15 kt, increasing to south gales 35 to 45 
  KT with occasional storm force gusts to 50 KT tonight into 
  Friday. 

* Areas affected...All areas.

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

&&

$$

PZZ370-141200-
/O.CON.KMFR.SC.Y.0100.000000T0000Z-181214T0600Z/
/O.CON.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
233 PM PST Thu Dec 13 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM
PST FRIDAY...

* Seas...Very steep and west swell dominated at 14 to 17 ft
  through this evening. Increasing wind waves tonight and a 
  building powerful west swell Friday may drive combined seas as 
  high as 25 ft by Friday. 

* Winds...South 15 to 25 kt, increasing to south gales 35 to 45 
  KT with occasional storm force gusts to 50 KT tonight into 
  Friday. 

* Areas affected...All areas.

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

&&

$$

PZZ350-141200-
/O.CON.KMFR.SC.Y.0101.000000T0000Z-181214T1200Z/
/O.CON.KMFR.GL.W.0037.181214T0600Z-181214T2100Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
233 PM PST Thu Dec 13 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM
PST FRIDAY...

* Seas...Very steep and west swell dominated at 14 to 17 ft 
  through tonight. Increasing wind waves tonight and a building 
  powerful west swell Friday may drive combined seas as high as 
  25 ft by Friday. 

* Winds...Southeast to south 15 to 25 kt, increasing to south 
  gales 35 to 45 KT with occasional storm force gusts to 50 KT 
  tonight into Friday. 

* Areas affected...All areas.

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

&&

$$


http://www.weather.gov/medford
153 
WHUS76 KMFR 141037
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
237 AM PST Fri Dec 14 2018

PZZ356-376-142345-
/O.CON.KMFR.GL.W.0037.000000T0000Z-181214T2100Z/
/O.CON.KMFR.SC.Y.0098.000000T0000Z-181214T1200Z/
/O.NEW.KMFR.SE.W.0053.181214T2100Z-181215T0900Z/
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-
237 AM PST Fri Dec 14 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO
1 AM PST SATURDAY...

* Seas...Very steep and west swell dominated at 14 to 17 ft early
  this morning. Increasing wind waves and a building powerful west
  swell will drive combined seas as high as 22 ft this morning.
  Very high seas will then persist into early Saturday morning. 

* Winds...South 25 to 35 kt, increasing this morning to south
  gales 35 to 45 KT with occasional storm force gusts to 50 KT
  into early this afternoon. Winds will then diminish into early
  Saturday morning. 

* Areas affected...All areas.

* 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.

&&

$$

PZZ350-142345-
/O.CON.KMFR.GL.W.0037.000000T0000Z-181214T2100Z/
/O.CON.KMFR.SC.Y.0101.000000T0000Z-181214T1200Z/
/O.NEW.KMFR.SE.W.0053.181214T2100Z-181215T0900Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
237 AM PST Fri Dec 14 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO
1 AM PST SATURDAY...

* Seas...Very steep and west swell dominated at 13 to 16 ft early
  this morning. Increasing wind waves and a building powerful west
  swell will produce very high seas later this morning into early
  Saturday morning. 

* Winds...Southeast to south 20 to 30 kt, increasing to south
  gales 35 to 45 KT with occasional storm force gusts to 50 KT
  this morning into early afternoon. Winds will then diminish into
  early Saturday morning. 

* Areas affected...All areas.

* 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.

&&

$$

PZZ370-142345-
/O.CON.KMFR.GL.W.0037.000000T0000Z-181214T2100Z/
/O.NEW.KMFR.SE.W.0053.181214T2100Z-181215T0900Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
237 AM PST Fri Dec 14 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO
1 AM PST SATURDAY...

* Seas...Very steep and west swell dominated at 15 to 18 ft early
  this morning. Increasing wind waves and a building powerful 
  west swell will produce very high seas later this morning into 
  early Saturday morning. 

* Winds...Southeast to south 30 to 40 kt, increasing to south 
  gales 35 to 45 KT with occasional storm force gusts to 50 KT 
  this morning into early afternoon. Winds will then diminish into
  early Saturday morning. 

* Areas affected...All areas.

* 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.

&&

$$


http://www.weather.gov/medford

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Medford, OR wrote its last area forecast discussion before this small craft advisory went out at Dec 11, 9:37 PM PST, 4 hours 50 minutes earlier.

Area forecast discussion, Dec 11, 9:37 PM PST, 4 hours 50 minutes before
Area Forecast Discussion
National Weather Service Medford OR
937 PM PST Tue Dec 11 2018

.DISCUSSION...No major updates were needed this evening as
the going forecast looks largely on track. A cold front is
currently making it's way through the forecast area. Area
webcams are showing snow levels between 5000 and 6000 ft as the
main frontal band moves through, but snow levels lower behind the
front down to around 3500 feet. By then though, the bulk of the
precipitation will be done so we're only expecting the greatest
snow accumulations to be above 5500 feet tonight with wintry
travel impacts limited to the Cascade passes. In addition to the
rain and snow, strong gusty winds will continue overnight for some
of the higher elevations east of the Cascades. Summer Lake RAWS
gusted to 57 mph in the last hour and this will make for difficult
driving conditions if traveling along portions of highways 140,
31, 299, and 395. For more details, please see NPWMFR.

Winds will diminish by early Wednesday morning and lingering
showers will come to an end by late Wednesday morning. The
atmosphere should remain unstable enough to prevent widespread fog
in the west side valleys tonight. Conditions will stabilize,
however, late Wednesday morning as upper level ridging nudges into
the forecast area. As the day progresses Wednesday, the
atmosphere will dry and skies will clear, likely leading to fog
for the west side valleys Wednesday into Thursday morning. For
more details on the weather to follow, see the previous discussion
below. /BR-y

&&

.AVIATION...For the 12/00Z TAFs...Mostly VFR conditions prevail
across the area with local ares of MVFR/IFR in light rain ahead of
the main front, which is moving onshore now. Conditions will
gradually lower as the front moves inland from northwest to
southeast, with mostly IFR conditions expected with frontal passage.
The other concern this evening is LLWS for most sites west of the
Cascades as the front moves through. Winds aloft no longer look as
strong for LLWS to be a concern east of the Cascades, but it will
still be gusty at the surface late this evening and overnight. Once
the front passes, there will be plenty of low level moisture to
result in reduced visibility and ceilings late tonight. However,
conditions are expected to remain unsettled enough to prevent fog
formation tonight. /BR-y

&&

.MARINE...Updated 900 PM PST Tuesday 11 December 2018...An active
weather pattern through this weekend will maintain elevated seas
with periods of strong gusty winds as several progressively stronger
fronts move across the waters. Winds have diminished and turned
northwest after the first front, but will remain gusty through
tonight. Very steep and hazardous wind driven seas will continue
through tonight. Then seas will build again and transition back to
northwest swell dominated by early Wednesday morning.

More fronts will follow this week and into the weekend with the next
front expected Thursday night into Friday. This will bring another
round of gusty south winds. Models still differ on strength and
timing of this front, but it does look stronger than today's front
and gales will be possible. Another stronger front is expected
Saturday night into Sunday.

Additionally, more long-period heavy swell trains are expected to
impact the coastal waters through the week and into the weekend.
These swells are likely to produce very dangerous bar conditions,
and will pose a risk to fishing apparatus and exposed
infrastructure. The next heavy swell will move into the waters
tonight, followed by another heavy swell train Thursday night into
Friday. There looks to be a brief break in the weather Saturday,
with relatively lower seas (12 to 15 ft). However, guidance
continues to indicate another very heavy and very high (highest so
far this season) swell train moving in Sunday into Monday. /BR-y

&&

.PREV DISCUSSION... /Issued 255 PM PST Tue Dec 11 2018/

DISCUSSION...11/12Z NAM/GFS/EC in.

The northern hemispheric view shows a five wave pattern around
the globe, which usually means a progressive pattern. That is the
case this time.

Mostly cloudy skies prevail this morning across the Medford CWA.
There are scattered light showers inland, but the heaviest
precipitation is over the coast and Umpqua Basin, where a front is
now moving onshore. There is lots of stratus and some fog/freezing
fog as well, especially east of the Cascades.

The front will bring gusty winds to the east side into Wednesday.
The winds will peak tonight, and a Wind Advisory is in effect for
portions of the east side.

The short wave aloft and the associated surface front will clear
to the east of the area late tonight, and post-frontal showers
will end early Wednesday as a long wave ridge moves into the area.
The remainder of Wednesday and Thursday will be dry with colder
mornings and warmer afternoons.

Another front will move onshore Friday. The NAM, GFS, and EC are
now all similar on the timing, but differ significantly with the
strength of the front. All show gale force winds ahead of the
front, but the NAM winds are near storm force. At this point, will
go with a model compromise, but will make winds a bit stronger
Friday morning over the marine waters and along the coast to
account for the slower and possibly stronger front.

From Friday on, the pattern will slow down a bit but still remain
progressive as a deep trough digs offshore between 130W and 140W
and a strong ridge develops ahead of it over the western U.S.

LONG TERM...Saturday, Dec 15th through Tuesday night, Dec 19th...
At the beginning of this time period a strong trough will be
deepening in the Gulf of Alaska. This is likely to bring strong
southerly winds in the coastal waters Saturday night as a cold front
approaches the coast. Snow levels are expected to increase into the
5500-6500 foot range due to the strong southerly flow. At this point
it appears the front will bring gales to the coastal waters and some
advisory level southerly winds across some of the forecast area.
Moderate to heavy precipitation is expected along and near the
Coastal Mountains and in Siskiyou County, with light to moderate
amounts elsewhere.

Monday into Tuesday the jet stream will then take aim on the mouth of
Columbia River, with ridging then amplifying along the West Coast.
More precipitation is expected across the area, though details
regarding how much comes inland how fast and how fast snow levels
rise is in question. At this point there is some concern that snow
levels could rise from 6500 feet to 8000 feet Tuesday into Tuesday
night. Thereafter, the GFS indicates the front weakening before it
comes in whereas the ECMWF pushes a strong front coming in with a
sharp drop in snow levels Thursday. BTL

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...High Surf Advisory until 4 AM PST Saturday for ORZ021-022.
     Wind Advisory until 4 AM PST Wednesday for ORZ030-031.

CA...Wind Advisory until 4 AM PST Wednesday for CAZ085.

Pacific Coastal Waters...Small Craft Advisory until 4 PM PST Saturday for PZZ350-356-376.
     Hazardous Seas Warning until 10 AM PST Wednesday for PZZ356-376.
     Hazardous Seas Warning until 10 AM PST Wednesday for PZZ350-370.
     Small Craft Advisory until 10 PM PST this evening for PZZ370.
     Small Craft Advisory from 10 AM Wednesday to 4 PM PST Saturday
     for PZZ370.

MNF/JRS/BTL

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 12, 2:27 AM PSTGale WatchMFR11 hr
Dec 12, 3:20 AM PSTHigh Wind WatchMFRCoos, Curry, Douglas, Klamath, Lake35 hr
Dec 12, 1:30 PM PSTGale WarningMFR48 hr

Nearby

Small Craft Advisories in Oregon, 2018Every small craft advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.