Alert archive / Oregon / Small Craft Advisories in 2021

Small Craft Advisory 133, NWS Medford, OR

December 22, 2021

NWS Medford, OR issued this small craft advisory at Dec 22, 2021, 2:52 AM PST. It took effect at Dec 23, 2021, 1:00 AM PST. It was in force for 25 hr.

The area

The counties it named.

The facts

Issued
Dec 22, 2021, 2:52 AM PST (10:52 UTC)
In effect from
Dec 23, 2021, 1:00 AM PST
Expired
Dec 24, 2021, 2:05 AM PST
In force
25 hr
Issued by
NWS Medford, OR

The text

As transmitted.

126 
WHUS76 KMFR 221052
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
252 AM PST Wed Dec 22 2021

PZZ350-356-230000-
/O.CON.KMFR.SC.Y.0132.000000T0000Z-211222T1800Z/
/O.CON.KMFR.SE.W.0083.211222T1800Z-211223T0900Z/
/O.NEW.KMFR.SC.Y.0133.211223T0900Z-211225T1900Z/
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-
252 AM PST Wed Dec 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 1 AM PST THURSDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM THURSDAY TO 11 AM PST
SATURDAY...

* WHAT...Steep wind-driven seas of 7 to 8 feet this morning,
  becoming very steep and hazardous at 8 to 10 feet this afternoon
  into this evening, with south winds 25 to 30 kt and gusts up to
  35 kt. Steep seas of 8 to 10 feet at 12 seconds are then 
  expected into the weekend. 
 
* WHERE...All areas. 

* WHEN...A Small Craft Advisory is in effect until 10 AM PST this
  morning, followed by a Hazardous Seas Warning from 10 AM this
  morning to 1 AM PST Thursday. A second Small Craft Advisory is
  then in effect from 1 AM Thursday to 11 AM PST Saturday.

* IMPACTS...Very steep and hazardous seas could capsize or damage
  vessels. 

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ370-376-230000-
/O.CON.KMFR.SE.W.0082.000000T0000Z-211223T0900Z/
/O.CON.KMFR.SC.Y.0132.000000T0000Z-211222T1800Z/
/O.NEW.KMFR.SC.Y.0133.211223T0900Z-211225T1900Z/
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-
252 AM PST Wed Dec 22 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 1 AM PST
THURSDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM THURSDAY TO 11 AM PST
SATURDAY...

* WHAT...Very steep wind-driven seas of 10 to 12 feet with south
  winds 25 to 30 kt and gusts up to 35 kt through this evening.
  Steep combined seas of 10 to 12 feet at 12 seconds are then 
  expected tonight into the weekend.

* WHERE...Very steep and hazardous seas beyond 10 nm from shore
  and north of Port Orford will spread to all areas this afternoon
  into the evening. Small Craft Advisory conditions will then 
  follow for all areas. 

* WHEN...The Hazardous Seas Warning is in effect until 1 AM PST
  Thursday, with a Small Craft Advisory for the souther waters
  until 10 AM PST this morning. A second Small Craft Advisory is
  in effect from 1 AM Thursday to 11 AM PST Saturday.

* IMPACTS...Very steep and hazardous seas could capsize or damage
  vessels.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

Visit us at https://www.weather.gov/Medford
5 follow-up statements
862 
WHUS76 KMFR 222229
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
229 PM PST Wed Dec 22 2021

PZZ370-376-231130-
/O.CON.KMFR.SE.W.0082.000000T0000Z-211223T0900Z/
/O.EXT.KMFR.SC.Y.0133.211223T0900Z-211224T1800Z/
/O.NEW.KMFR.SE.A.0034.211224T1800Z-211225T0600Z/
/O.NEW.KMFR.SC.Y.0134.211225T0600Z-211226T0000Z/
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-
229 PM PST Wed Dec 22 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 1 AM PST
THURSDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM THURSDAY TO 10 AM
PST FRIDAY...
...HAZARDOUS SEAS WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM FRIDAY TO 4 PM PST
SATURDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 8 to 11 ft at 17 seconds. For the first Small 
  Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt 
  and seas 10 to 15 ft at 15 seconds expected. For the second 
  Small Craft Advisory, seas 14 to 19 ft at 13 seconds expected. 
  For the Hazardous Seas Watch, very steep and hazardous seas 17 
  to 20 ft at 14 seconds possible.

* WHERE...All areas.

* WHEN...For the Hazardous Seas Warning, until 1 AM PST 
  Thursday. For the Small Craft Advisory, from 1 AM Thursday to 
  10 AM PST Friday. For the Small Craft Advisory, from 10 PM 
  Friday to 4 PM PST Saturday. For the Hazardous Seas Watch, 
  from Friday morning through Friday evening.

* IMPACTS...Very steep and hazardous seas could capsize or 
  damage vessels. Bar crossings will become especially 
  treacherous.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ350-356-231130-
/O.CON.KMFR.SE.W.0083.000000T0000Z-211223T0900Z/
/O.EXT.KMFR.SC.Y.0133.211223T0900Z-211226T0000Z/
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-
229 PM PST Wed Dec 22 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 1 AM PST
THURSDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM THURSDAY TO 4 PM
PST SATURDAY...

* WHAT...Steep wind-driven seas of 7 to 8 feet this morning, 
  becoming very steep and hazardous at 8 to 10 feet this 
  afternoon into this evening, with south winds 25 to 30 kt and 
  gusts up to 35 kt. Steep seas of 8 to 10 feet at 12 seconds 
  are then expected into the weekend.

* WHERE...All areas.

* WHEN...For the Hazardous Seas Warning, until 1 AM PST 
  Thursday. For the Small Craft Advisory, from 1 AM Thursday to 
  4 PM PST Saturday.

* IMPACTS...Very steep and hazardous seas could capsize or 
  damage vessels. Bar crossings will become especially 
  treacherous.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

Visit us at https://www.weather.gov/Medford
246 
WHUS76 KMFR 231027
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
227 AM PST Thu Dec 23 2021

PZZ376-232330-
/O.CAN.KMFR.SC.Y.0133.000000T0000Z-211224T1800Z/
/O.EXT.KMFR.SC.Y.0134.211223T1027Z-211226T0000Z/
/O.UPG.KMFR.SE.A.0034.211224T1800Z-211225T0600Z/
/O.NEW.KMFR.SE.W.0084.211224T1200Z-211225T0000Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
227 AM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PST SATURDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY...

* WHAT...Steep northwest seas around 10 feet at 8 seconds. Winds 
  becoming west 25 to 30 kt with gusts up to 35 kt and combined 
  seas becoming very steep at 15 to 17 feet Friday morning and 
  afternoon. Steep northwest seas of 12 to 14 feet at 13 seconds 
  then continue into the weekend. 
 
* WHERE...Small Craft conditions are expected for all areas, with
  very steep and hazardous seas expected beyond 20 nm from shore
  Friday. 

* WHEN...The Small Craft Advisory remains in effect until 4 PM 
  PST Saturday, with a Hazardous Seas Warning in effect from 4 AM 
  to 4 PM PST Friday.

* IMPACTS...Very steep and hazardous seas could capsize or damage
  vessels. 

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ370-232330-
/O.EXT.KMFR.SC.Y.0133.000000T0000Z-211224T1200Z/
/O.UPG.KMFR.SE.A.0034.211224T1800Z-211225T0600Z/
/O.NEW.KMFR.SE.W.0084.211224T1200Z-211225T0000Z/
/O.EXT.KMFR.SC.Y.0134.211225T0000Z-211226T0000Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
227 AM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM PST FRIDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 4 PM FRIDAY TO 4 PM
PST SATURDAY...

* WHAT...Steep northwest seas around 10 feet at 8 seconds. Winds 
  becoming west 25 to 30 kt with gusts up to 35 kt and combined 
  seas becoming very steep at 15 to 18 feet Friday morning and 
  afternoon. Steep northwest seas of 12 to 14 feet at 13 seconds 
  then continue into the weekend. 

* WHERE...All areas.

* WHEN...A Small Craft Advisory is in effect until 4 AM PST 
  Friday, followed by a Hazardous Seas Warning from 4 AM to 4 PM 
  PST Friday. A second Small Craft Advisory is then in effect from
  4 PM Friday to 4 PM PST Saturday.

* IMPACTS...Very steep and hazardous seas could capsize or damage
  vessels. 

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ350-232330-
/O.EXT.KMFR.SC.Y.0133.000000T0000Z-211224T1200Z/
/O.NEW.KMFR.SE.W.0084.211224T1200Z-211225T0000Z/
/O.NEW.KMFR.SC.Y.0135.211225T0000Z-211226T0000Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
227 AM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM PST FRIDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM FRIDAY TO 4 PM PST
SATURDAY...

* WHAT...Steep northwest seas around 10 feet at 8 seconds. Winds 
  becoming west 25 to 30 kt with gusts up to 35 kt and combined 
  seas becoming very steep at 13 to 16 feet Friday morning and 
  afternoon. Steep northwest seas of 10 to 13 feet at 13 seconds 
  then continue into the weekend. 

* WHERE...All areas.

* WHEN...A Small Craft Advisory is in effect until 4 AM PST 
  Friday, followed by a Hazardous Seas Warning from 4 AM to 4 PM 
  PST Friday. A second Small Craft Advisory is then in effect from
  4 PM Friday to 4 PM PST Saturday.

* IMPACTS...Very steep and hazardous seas could capsize or damage
  vessels. 

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ356-232330-
/O.CON.KMFR.SC.Y.0133.000000T0000Z-211226T0000Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
227 AM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
SATURDAY...

* WHAT...Steep northwest seas around 10 feet at 8 seconds. Winds
  becoming west 20 to 25 kt with gusts up to 30 kt and combined
  seas becoming 9 to 12 feet Friday morning and afternoon. Steep 
  northwest seas of 10 to 13 feet at 13 seconds then continue into
  the weekend. 

* WHERE...All areas.

* WHEN...Until 4 PM PST Saturday.

* IMPACTS...Gusty winds and steep seas could capsize or damage
  smaller vessels, and will pose an increased risk to
  inexperienced mariners. 

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners and those operating smaller vessels should
remain in port and avoid the area of hazardous conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
781 
WHUS76 KMFR 232145
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
145 PM PST Thu Dec 23 2021

PZZ370-241045-
/O.CON.KMFR.SC.Y.0133.000000T0000Z-211224T1200Z/
/O.CON.KMFR.SE.W.0084.211224T1200Z-211225T0000Z/
/O.EXT.KMFR.SC.Y.0134.211225T0000Z-211226T1200Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
145 PM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 4 PM FRIDAY TO 4 AM
PST SUNDAY...

* WHAT...Steep northwest seas around 10 feet at 8 seconds. Winds 
  becoming west 25 to 30 kt with gusts up to 35 kt and combined 
  seas becoming very steep at 15 to 18 feet Friday morning and 
  afternoon. Steep northwest seas of 12 to 14 feet at 13 seconds 
  then continue into the weekend.

* WHERE...All areas.

* WHEN...For the Hazardous Seas Warning, from 4 AM to 4 PM PST
  Friday. For the Small Craft Advisory, now until 4 AM PST Friday.
  Then from 4 PM Friday to 4 AM PST Sunday.

* IMPACTS...Very steep and hazardous seas could capsize or 
  damage vessels. Bar crossings will become especially 
  treacherous.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ350-241045-
/O.CON.KMFR.SC.Y.0133.000000T0000Z-211224T1200Z/
/O.CON.KMFR.SE.W.0084.211224T1200Z-211225T0000Z/
/O.EXT.KMFR.SC.Y.0135.211225T0000Z-211226T1200Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
145 PM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 4 PM FRIDAY TO 4 AM
PST SUNDAY...

* WHAT...Steep northwest seas around 10 feet at 8 seconds. Winds 
  becoming west 25 to 30 kt with gusts up to 35 kt and combined 
  seas becoming very steep at 13 to 16 feet Friday morning and 
  afternoon. Steep northwest seas of 10 to 13 feet at 13 seconds 
  then continue into the weekend.

* WHERE...All areas.

* WHEN...For the Hazardous Seas Warning, from 4 AM to 4 PM PST
  Friday. For the Small Craft Advisory, until 4 AM PST Friday.
  Then from 4 PM Friday to 4 AM PST Sunday.

* IMPACTS...Very steep and hazardous seas could capsize or 
  damage vessels. Bar crossings will become especially 
  treacherous.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ376-241045-
/O.EXT.KMFR.SC.Y.0134.000000T0000Z-211226T1200Z/
/O.CON.KMFR.SE.W.0084.211224T1200Z-211225T0000Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
145 PM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM PST SUNDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY...

* WHAT...Steep northwest seas around 10 feet at 8 seconds. Winds 
  becoming west 25 to 30 kt with gusts up to 35 kt and combined 
  seas becoming very steep at 15 to 17 feet Friday morning and 
  afternoon. Steep northwest seas of 12 to 14 feet at 13 seconds 
  then continue into the weekend.

* WHERE...Small Craft conditions are expected for all areas, 
  with very steep and hazardous seas expected beyond 20 nm from 
  shore Friday.

* WHEN...For the Hazardous Seas Warning, from 4 AM to 4 PM PST 
  Friday. For the Small Craft Advisory, until 4 AM PST Sunday.

* IMPACTS...Very steep and hazardous seas could capsize or 
  damage vessels. Bar crossings will become especially 
  treacherous.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ356-241045-
/O.EXT.KMFR.SC.Y.0133.000000T0000Z-211226T1200Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
145 PM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM PST SUNDAY...

* WHAT...Steep northwest seas around 10 feet at 8 seconds. Winds 
  becoming west 20 to 25 kt with gusts up to 30 kt and combined 
  seas becoming 9 to 12 feet Friday morning and afternoon. Steep 
  northwest seas of 10 to 13 feet at 13 seconds then continue 
  into the weekend.

* WHERE...All areas.

* WHEN...Until 4 AM PST Sunday.

* IMPACTS...Gusty winds and/or steep seas could capsize or 
  damage smaller vessels.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners and those operating smaller vessels should
remain in port and avoid the area of hazardous conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
576 
WHUS76 KMFR 240514
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
914 PM PST Thu Dec 23 2021

PZZ370-241815-
/O.CON.KMFR.SC.Y.0133.000000T0000Z-211224T1200Z/
/O.EXT.KMFR.SE.W.0084.211224T1200Z-211225T0900Z/
/O.EXT.KMFR.SC.Y.0134.211225T0900Z-211227T1200Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
914 PM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 4 AM FRIDAY TO 1 AM
PST SATURDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM SATURDAY TO 4 AM
PST MONDAY...

* WHAT...For the first Small Craft Advisory, west winds 20 to 25
  kt with gusts up to 30 kt and seas 10 to 12 ft at 12 seconds.
  For the Hazardous Seas Warning, west winds 25 to 30 kt with
  gusts to 35 kt and very steep and hazardous seas 12 to 17 ft at
  11 seconds expected. For the second Small Craft Advisory,
  northwest winds 15 to 25 kt with gusts up to 30 kt and seas 10
  to 15 ft at 13 seconds expected.

* WHERE...All of the area.

* WHEN...For the Hazardous Seas Warning, from 4 AM Friday to 1 AM
  PST Saturday. For the first Small Craft Advisory, until 4 AM PST
  Friday. For the second Small Craft Advisory, from 1 AM Saturday
  to 4 AM PST Monday.

* IMPACTS...Very steep and hazardous seas could capsize or 
  damage vessels. Bar crossings will become especially 
  treacherous.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ350-241815-
/O.CON.KMFR.SC.Y.0133.000000T0000Z-211224T1200Z/
/O.EXT.KMFR.SE.W.0084.211224T1200Z-211225T0900Z/
/O.EXT.KMFR.SC.Y.0135.211225T0900Z-211227T1200Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
914 PM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 4 AM FRIDAY TO 1 AM
PST SATURDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM SATURDAY TO 4 AM
PST MONDAY...

* WHAT...For the first Small Craft Advisory, west winds 20 to 25
  kt with gusts up to 30 kt and seas 9 to 11 ft at 12 seconds. For
  the Hazardous Seas Warning, west winds 25 to 30 kt with gusts to
  35 kt and very steep and hazardous seas 11 to 16 ft at 11
  seconds expected. For the second Small Craft Advisory, northwest
  winds 15 to 20 kt with gusts up to 30 kt and seas 9 to 15 ft at
  13 seconds expected.

* WHERE...All of the area.

* WHEN...For the Hazardous Seas Warning, from 4 AM Friday to 1 AM
  PST Saturday. For the first Small Craft Advisory, until 4 AM PST
  Friday. For the second Small Craft Advisory, from 1 AM Saturday
  to 4 AM PST Monday.

* IMPACTS...Very steep and hazardous seas could capsize or 
  damage vessels. Bar crossings will become especially 
  treacherous.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ376-241815-
/O.EXT.KMFR.SC.Y.0134.000000T0000Z-211227T1200Z/
/O.EXT.KMFR.SE.W.0084.211224T1200Z-211225T0900Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
914 PM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM PST MONDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 4 AM FRIDAY TO 1 AM
PST SATURDAY...

* WHAT...For the Hazardous Seas Warning, west winds 20 to 30 kt
  with gusts up to 35 kt and very steep and hazardous seas 13 to
  18 ft at 11 seconds expected. For the Small Craft Advisory, west
  winds 15 to 25 kt with gusts up to 30 kt and seas 10 to 16 ft 
  at 13 seconds.

* WHERE...Small Craft conditions are expected for all of the area,
  except very steep and hazardous seas are expected beyond 20 nm 
  from shore Friday through Friday night.

* WHEN...For the Hazardous Seas Warning, from 4 AM Friday to 1 
  AM PST Saturday. For the Small Craft Advisory, until 4 AM PST 
  Monday.

* IMPACTS...Very steep and hazardous seas could capsize or 
  damage vessels. Bar crossings will become especially 
  treacherous.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ356-241815-
/O.EXT.KMFR.SC.Y.0133.000000T0000Z-211227T1200Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
914 PM PST Thu Dec 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM PST MONDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas 10 
  to 16 ft at 13 seconds.

* WHERE...All of the area.

* WHEN...Until 4 AM PST Monday.

* IMPACTS...Gusty winds and/or steep seas could capsize or 
  damage smaller vessels.

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners and those operating smaller vessels should
remain in port and avoid the area of hazardous conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
651 
WHUS76 KMFR 241005
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
205 AM PST Fri Dec 24 2021

PZZ370-242315-
/O.CAN.KMFR.SC.Y.0133.000000T0000Z-211224T1200Z/
/O.EXT.KMFR.SE.W.0084.211224T1005Z-211225T0900Z/
/O.CON.KMFR.SC.Y.0134.211225T0900Z-211227T1200Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
205 AM PST Fri Dec 24 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 1 AM PST SATURDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM SATURDAY TO
4 AM PST MONDAY...

* WHAT...West winds around 30 kt with gusts up to 35 kt and very
  steep wind-driven seas of 12 to 16 feet through this evening.
  Seas becoming northwest 13 to 17 feet at 12 seconds tonight
  through Sunday night.  

* WHERE...All areas.

* WHEN...The Hazardous Seas Warning is in effect until 1 AM PST
  Saturday, followed by a Small Craft Advisory from 1 AM Saturday
  to 4 AM PST Monday.

* IMPACTS...Very steep and hazardous seas could capsize or damage
  vessels. 

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ350-242315-
/O.CAN.KMFR.SC.Y.0133.000000T0000Z-211224T1200Z/
/O.EXT.KMFR.SE.W.0084.211224T1005Z-211225T0900Z/
/O.CON.KMFR.SC.Y.0135.211225T0900Z-211227T1200Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
205 AM PST Fri Dec 24 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 1 AM PST SATURDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM SATURDAY TO
4 AM PST MONDAY...

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and very 
  steep wind-driven seas of 12 to 15 feet through this evening. 
  Seas becoming northwest 13 to 16 feet at 12 seconds tonight 
  through Sunday night. 

* WHERE...All areas.

* WHEN...The Hazardous Seas Warning is in effect until 1 AM PST
  Saturday, followed by a Small Craft Advisory from 1 AM Saturday
  to 4 AM PST Monday.

* IMPACTS...Very steep and hazardous seas could capsize or damage
  vessels. 

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ376-242315-
/O.CAN.KMFR.SC.Y.0134.000000T0000Z-211227T1200Z/
/O.EXT.KMFR.SE.W.0084.211224T1005Z-211225T0900Z/
/O.NEW.KMFR.SC.Y.0136.211225T0900Z-211227T1200Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
205 AM PST Fri Dec 24 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 1 AM PST SATURDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM SATURDAY TO 4 AM PST
MONDAY...

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and very
  steep wind-driven seas of 12 to 16 feet through this evening. 
  Seas becoming northwest 13 to 17 feet at 12 seconds tonight 
  through Sunday night. 

* WHERE...All areas.

* WHEN...The Hazardous Seas Warning is in effect until 1 AM PST
  Saturday, followed by a Small Craft Advisory from 1 AM Saturday
  to 4 AM PST Monday.

* IMPACTS...Very steep and hazardous seas could capsize or damage
  vessels. 

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

PZZ356-242315-
/O.UPG.KMFR.SC.Y.0133.000000T0000Z-211227T1200Z/
/O.EXB.KMFR.SE.W.0084.211224T1005Z-211225T0900Z/
/O.EXA.KMFR.SC.Y.0134.211225T0900Z-211227T1200Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
205 AM PST Fri Dec 24 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 1 AM PST SATURDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM SATURDAY TO 4 AM PST
MONDAY...

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and very
  steep wind-driven seas of 10 to 14 feet through this evening. 
  Seas becoming northwest 13 to 17 feet at 12 seconds tonight 
  through Sunday night. 

* WHERE...All areas.

* WHEN...The Hazardous Seas Warning is in effect until 1 AM PST
  Saturday, followed by a Small Craft Advisory from 1 AM Saturday
  to 4 AM PST Monday.

* IMPACTS...Very steep and hazardous seas could capsize or damage
  vessels. 

* View the hazard area in detail at https://go.usa.gov/x6hks

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for very steep seas and consider remaining in port
until conditions improve.

&&

$$

Visit us at https://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 21, 8:00 PM PST, 6 hours 52 minutes earlier.

Area forecast discussion, Dec 21, 8:00 PM PST, 6 hours 52 minutes before
Area Forecast Discussion
National Weather Service Medford OR
800 PM PST Tue Dec 21 2021

.DISCUSSION...22/00Z NAM in. 22/00Z GFS in through 42hr.

The coming week will be quite an interesting one over the Medford
forecast area. High impact snow events look likely at this
time, with snow levels dropping to some of the west side valley
floors this weekend.

A cutoff low remains off the coast this evening, and a short wave
that ejected from the low is powering a surface front across the
Medford forecast area at this time. Reported precipitation thus
far has been light and most of that has fallen along the coast,
the Coast Range, and in western Siskiyou county. The heaviest
reported amounts are around 0.50 inches along the south coast.
Snow levels are 4000 to 4500 feet with some pockets to 3500 feet
in Northern California. Mt Shasta City, Black Butte Summit and
Siskiyou Summit might see around 1 inch tonight as the
dissipating front pushes farther inland.

A kicker trough will pick up the cutoff low Wednesday, and the now
combined system will approach the coast Wednesday and move onshore
Thursday. Increasing southwest flow aloft will continue to bring
ejecting short waves over the area and several fronts will move
onshore in quick succession during this interval. The greatest
impacts, primarily due to snow, look to be over higher terrain
from the Cascades west Wednesday night into Thursday morning.
Winter Storm Warnings and Winter Weather Advisories are in effect
for this time frame. See PDXWSWMFR for details.

The trough will move onshore Thursday into Thursday night along
with another front. This will bring colder air into the area and
snow levels will drop to 2000 to 2500 feet Thursday night into
Friday.

Some of the deterministic models show the front stalling or
slowing over the area with good low level convergence in the mid
levels late Thursday into Friday. Therefore, the snow could very
well continue until the next low pushes into the forecast area
early Friday Christmas Eve.

Long term discussion from the Tuesday afternoon AFD...Friday 24
Dec through Tuesday 28 Dec 2021. The major topics for the long
term are a possible storm late Friday into Saturday with snow
levels around 2000 feet, and a following unusually lengthy episode
of mainly low intensity snowfall Saturday night at least into
Monday with snow levels around 500 to 1000 feet.

The most noteworthy uncertainty in the long term regards the
strength of a front on Friday night/Christmas Eve that is likely to
be the strongest disturbance of several that will bring snow to our
area in the long term. There are a notable minority of ensemble
members that produce light snow with this front, but most are about
evenly split between a moderate/Advisory or strong/Warning snowfall
with the snow level around 2000 feet.

The next round of impactful snow is expected to have a relatively
modest start on Friday with light intensity focused upon the
southern Oregon Cascades from around Lake of the Woods and Prospect
northward to include the Crater Lake, Diamond Lake, and Willamette
Pass region. Friday will begin with snow levels ranging from 2000 to
3000 feet, nudging a few hundred feet higher with the warming of the
day on Christmas.

Lighter showers continue with snow levels dropping to the valley
floors by Sunday morning. The showers are then expected to become
more active with light to moderate snow accumulations possible on
and off through Monday night.

&&

.AVIATION...22/00Z TAFs...A front will near the coast tonight
and move inland on Wednesday bringing rain and mountain snow.
Widespread MVFR cigs/vis and local IFR cigs are expected at the
coast tonight through Wednesday. Inland, areas of MVFR/IFR
conditions and terrain obscurations will increase overnight with
local IFR/LIFR cigs possible in western valleys. Also as winds aloft
increase, mountain wave turbulence is possible east of the Cascades
tonight. As the front moves inland Wednesday morning and afternoon,
expect light to moderate precipitation with widespread MVFR cigs,
areas MVFR vis and local IFR cigs. -CC

&&

.MARINE...Updated 800 PM PST Tuesday, 21 December, 2021...Fresh
southerly swell and wind seas will maintain steep seas in the near
shore waters, and very steep and hazardous seas across the outer
waters tonight into Wednesday morning. The next front will arrive
Wednesday, producing gusty south to southwest winds near gale force,
and widespread very steep seas through Wednesday night. Another
strong front is likely Thursday night into Friday, and this will
mark a general shift in the weather pattern to a much colder one
under westerly flow. Moderate west winds are expected from Friday
onward, with seas becoming swell driven and remaining elevated in
the 12 to 15 ft range at 12 to 14 seconds during this time. -CC

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...Winter Weather Advisory from 4 PM Wednesday to 4 AM PST Friday
        above 4500 feet in the for ORZ029>031.
     Winter Weather Advisory from 4 PM Wednesday to 4 AM PST Friday
        for ORZ027-028.

CA...Winter Weather Advisory from 4 PM Wednesday to 4 AM PST Friday
        above 4500 feet in the for CAZ085.
     Winter Storm Warning from 4 PM Wednesday to 10 AM PST Thursday
        for CAZ080.
     Winter Weather Advisory from 4 PM Wednesday to 4 AM PST Friday
        above 4000 feet in the for CAZ082-083.
     Wind Advisory from 1 PM Wednesday to 1 AM PST Thursday for
        CAZ081.

Pacific Coastal Waters...
     Small Craft Advisory until 10 AM PST Wednesday for
        PZZ350-356-370-376.
     Hazardous Seas Warning from 10 AM Wednesday to 1 AM PST Thursday
        for PZZ350-356.
     Hazardous Seas Warning until 1 AM PST Thursday for PZZ370-376.

15/15/02

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 22, 4:32 AM PSTWinter Storm WatchMFRCoos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more65 hr
Dec 22, 2:29 PM PSTSmall Craft AdvisoryMFR3 days
Dec 22, 2:29 PM PSTHazardous Seas WatchMFR12 hr

Nearby

Small Craft Advisories in Oregon, 2021Every small craft advisory in 2021

Sources

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