Alert archive / Oregon / Gale Warnings in 2018

Gale Warning 37, NWS Medford, OR

December 12, 2018

NWS Medford, OR issued this gale warning at Dec 12, 2018, 1:30 PM PST. It took effect at Dec 13, 2018, 10:00 PM PST. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 12, 2018, 1:30 PM PST (21:30 UTC)
In effect from
Dec 13, 2018, 10:00 PM PST
Expired
Dec 14, 2018, 1:00 PM PST
In force
15 hr
Issued by
NWS Medford, OR

The text

As transmitted.

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
4 follow-up statements
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 gale warning 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 gale warning went out at Dec 12, 9:42 AM PST, 3 hours 48 minutes earlier.

Area forecast discussion, Dec 12, 9:42 AM PST, 3 hours 48 minutes before
Area Forecast Discussion
National Weather Service Medford OR
942 AM PST Wed Dec 12 2018

.Updated Aviation Discussion.

.UPDATE...It will be a quiet day across the area, with last
night's front departing to the east and the next front still well
offshore. Other than a few showers along the coast north of Cape
Blanco, there will be little more than fog to concern us over the
next day or so. As the current forecast illustrates this well, and
observations are will in line with expected conditions, no updates
are necessary this morning. For more information on the rest of
the forecast, see the previous discussion below.

&&

.AVIATION...For the 12/18Z TAFs...Stable weather has returned and
moisture from recent rains has produced low clouds and patchy to
areas of fog in portions of the Umpqua Basin, including Roseburg,
Illinois valley and upper end of the Rogue Valley including Grants
Pass. Low clouds and fog should burn off late this morning, but
itr's possible it could linger into the early afternoon hours in the
Illinois Valley and Grants Pass. The TAF at Roseburg shows VFR
ceilings at 20Z but it's possible it could break out sooner. Clear
skies and residual moisture will likely produce significant valley
fog with LIFR conditions likely at KRBG and KMFR tonight. However
incoming high clouds this evening and tonight could delay the onset
of lower conditions and adjustments were made in the TAF's to
reflect this. Incoming high cloud and offshore winds makes fog less
likely, but not impossible, at the coast tonight. For now we'll keep
VFR ceilings through the TAF period at Klamath Falls, but low clouds
and patchy fog cannot be riled out around sunrise. Later shifts will
need to reevaluate. -Petrucelli

&&

.MARINE...Updated 845 AM PST Wednesday 12 December 2018...A
brief but high and very steep swell will arrive this morning and
then drop back to small craft advisory levels this afternoon.
Conditions hazardous to small craft, primarily from seas, will
continue tonight into Thursday. However, south winds will start to
increase Thursday afternoon as a strong front approaches. The front
will bring south gales and associated wind waves Thursday night into
Friday morning. The most recent short range guidance is for most
part in good agreement with the timing of the front. However the NAM
still shows a strong surface low developing late Thursday night into
friday morning which if correct could delay the timing of the front
and also result in stronger south winds, then west winds after the
front moves through. For now we'll lean towards the common solutions
from the GFS and ECMWF. A gale watch remains in effect for the
period. This will also coincide with the arrival of another very
high and powerful swell, the combination of which could produce
extremely high seas up to 25 feet Friday.

Additional strong fronts and periods of powerful west swell are
expected this weekend into early next week. As a result, hazards
from both wind and seas are expected to continue as well. However,
in order to avoid confusion, headlines for subsequent events have
not been issued. Mariners should be prepared for occasional
dangerous weather and sea conditions well into next week.
-Wright/Petrucelli

&&

PREV DISCUSSION... /Issued 310 AM PST Wed Dec 12 2018/

SHORT TERM...

We're watching the trough push eastward tonight. Showers still
continue behind the wave and are visible on radar. Winds are still
rather breezy, especially east of the Cascades this morning.
Klamath Falls briefly reported a wind gust around 35 mph as the
trough axis moved through, so we'll continue the wind advisory to
12z.

As for today, high pressure will begin to build with partly
cloudy skies. Temperatures should actually trend warmer as warmer
air begins to push in from the west if you look at 850 mb
temperatures. Thursday is essentially the same story, but the
moist west flow will bring a slight chance for showers along
portions of the coast. The flow is rather zonal and the ridge
begins to flatter on Thursday, so a slight chance for some rain
along the coast seems reasonable.

Friday is the big day as we have a strong low deepening east of
130 W longitude. As this low deepens, it heads farther north into
Canada. A strong cold front is expected to accompany this system
and is easily visible looking at 850mb temperatures. As this front
moves inland, winds will pick up along the coast around Friday
morning. We looked at the potential for a high wind watch along
the coast, but felt that the pressure gradient wasn't strong
enough. We felt that a watch was needed east of the Cascades as
the 700mb flow was showing 70 to 75 knots on some of the models.

The rain and snow for this system is a little underwhelming. We
don't really have that southwest jet connection to Hawaii. Right
now we're forecasting around 1 inch of rain along the coast and
roughly 0.5 inches in the west side valleys with the Rogue valley
seeing less with downslope winds. East of the Cascades will only
see a few tenths of precipitation. Snow as a result will also only
produce 1-4 inches in the mountains.

Overall, the main weather concern will be when the front moves
onshore Friday and pushes eastward across Oregon. Look for strong
winds at higher elevations on Friday.

-Smith

LONG TERM.../Issued at 3 pm December 11th 2018/

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.
     High Wind Watch from Friday morning through Friday evening for
     ORZ030-031.

CA...None.

Pacific Coastal Waters...Gale Watch from late Thursday night through Friday morning for
     PZZ350-356-370-376.
     Small Craft Advisory until 4 AM PST Friday for
     PZZ350-356-370-376.
     Hazardous Seas Warning until 10 AM PST this morning for
     PZZ350-356-370-376.

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, 2:27 AM PSTSmall Craft AdvisoryMFR50 hr
Dec 12, 3:20 AM PSTHigh Wind WatchMFRCoos, Curry, Douglas, Klamath, Lake35 hr

Nearby

Gale Warnings in Oregon, 2018Every gale warning 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.