Alert archive / Oregon / Hazardous Seas Warnings in 2021

Hazardous Seas Warning 81, NWS Medford, OR

December 18, 2021

NWS Medford, OR issued this hazardous seas warning at Dec 18, 2021, 2:34 PM PST. It took effect at Dec 19, 2021, 1:35 AM PST. It was in force for 44 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 18, 2021, 2:34 PM PST (22:34 UTC)
In effect from
Dec 19, 2021, 1:35 AM PST
Expired
Dec 20, 2021, 10:00 PM PST
In force
44 hr
Issued by
NWS Medford, OR

The text

As transmitted.

110 
WHUS76 KMFR 182234
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
234 PM PST Sat Dec 18 2021

PZZ350-370-190700-
/O.EXT.KMFR.SC.Y.0131.000000T0000Z-211219T1800Z/
/O.CON.KMFR.GL.W.0044.000000T0000Z-211219T0600Z/
/O.UPG.KMFR.GL.A.0036.211219T0600Z-211220T0000Z/
/O.NEW.KMFR.SE.W.0081.211219T1800Z-211220T1200Z/
/O.NEW.KMFR.GL.W.0045.211219T1800Z-211220T1200Z/
/O.UPG.KMFR.SE.A.0033.211219T0600Z-211220T0000Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
234 PM PST Sat Dec 18 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM PST SUNDAY...
...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...
...GALE WARNING IN EFFECT FROM 10 AM SUNDAY TO 4 AM PST MONDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 10 AM SUNDAY TO 4 AM PST
MONDAY...

* WHAT...For the first Gale Warning this evening, south winds 20 
  to 30 kt with gusts up to 40 kt with seas 9 to 12 ft at 12 
  seconds. For the second Gale Warning and Hazardous Seas Warning 
  Sunday, south winds 25 to 35 kt with gusts up to 40 kt and seas 
  11 to 15 ft at 12 seconds expected.

* WHERE...For the first Gale Warning this evening, areas north of
  Cape Blanco and beyond 10 nm from shore. Small craft conditions
  will cover all other areas. For the second Gale Warning, areas
  south of Coos Bay and beyond 10 nm from shore. Hazardous seas
  will cover all other areas between Florence and Pt. St. George.
  Steepest seas will occur in the outer waters.

* WHEN...For the first Gale Warning, until 10 PM PST this 
  evening. For the second Gale Warning, from 10 AM Sunday to 4 AM 
  PST Monday. For the Hazardous Seas Warning, from 10 AM Sunday to
  4 AM PST Monday. For the Small Craft Advisory, until 10 AM PST 
  Sunday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ356-376-190700-
/O.EXT.KMFR.SC.Y.0131.000000T0000Z-211219T1800Z/
/O.UPG.KMFR.GL.A.0036.211219T0600Z-211220T0000Z/
/O.UPG.KMFR.SE.A.0033.211219T0600Z-211220T0000Z/
/O.NEW.KMFR.SE.W.0081.211219T1800Z-211220T1200Z/
/O.NEW.KMFR.GL.W.0045.211219T1800Z-211220T1200Z/
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-
234 PM PST Sat Dec 18 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM PST SUNDAY...
...GALE WARNING IN EFFECT FROM 10 AM SUNDAY TO 4 AM PST MONDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 10 AM SUNDAY TO 4 AM PST
MONDAY...

* WHAT...For the Gale Warning Sunday, south winds 25 to 35 kt with
  gusts up to 40 kt and seas 11 to 16 ft at 12 seconds expected.
  For the Hazardous Seas Warning, very steep and hazardous seas 11
  to 16 ft at 15 seconds expected. For the Small Craft Advisory
  tonight, south winds 20 to 30 kt with gusts up to 35 kt and seas
  6 to 12 ft at 10 seconds.

* WHERE...For the Small Craft Advisory tonight, all areas between
  Pt. St. George and Cape Blanco. For the Gale Warning locations
  beyond 5 nm from shore and between Cape Blanco and Pt. St.
  George. For the Hazardous seas warning, all areas between
  Florence and Pt. St. George. Steepest seas will occur in the
  outer waters.

* WHEN...For the Gale Warning and Hazardous Seas Warning, from 10
  AM Sunday to 4 AM PST Monday. For the Small Craft Advisory, 
  until 10 AM PST Sunday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
8 follow-up statements
834 
WHUS76 KMFR 190402
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
802 PM PST Sat Dec 18 2021

PZZ350-370-191715-
/O.CAN.KMFR.GL.W.0044.000000T0000Z-211219T0600Z/
/O.EXT.KMFR.GL.W.0045.211219T0402Z-211220T1200Z/
/O.CON.KMFR.SC.Y.0131.000000T0000Z-211219T1800Z/
/O.CON.KMFR.SE.W.0081.211219T1800Z-211220T1200Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
802 PM PST Sat Dec 18 2021

...GALE WARNING NOW IN EFFECT UNTIL 4 AM PST MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
4 AM PST MONDAY...

* WHAT...South 25 to 30 kt with gusts to 35 kt and steep to very
  steep, short period seas of 8 to 12 feet through Sunday morning,
  except for a period of north 20 kt winds developing tonight
  across the northwest portion of the waters. Then, south gales 30
  to 35 kt with gusts to 40 kt and very steep, short period seas
  of 10 to 16 feet will develop late Sunday morning through Sunday
  night. These conditions may persist into Monday morning. 

* WHERE...Gales will affect the waters between 2 to 50 nm from
  shore and near capes this evening into tonight with small craft
  advisory conditions elsewhere. Gales will continue for areas
  south of Reedsport tonight into Sunday morning with small craft
  advisory elsewhere. Beginning late Sunday morning, very steep
  hazardous seas will develop across all the waters with gale
  force winds will continue beyond 2 nm from shore and near capes
  from Reedsport south. 

* WHEN...For the Hazardous Seas Warning, from 10 AM Sunday to 4 
  AM PST Monday. For the Gale Warning, until 4 AM PST Monday. 
  For the Small Craft Advisory, until 10 AM PST Sunday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ356-376-191715-
/O.EXT.KMFR.GL.W.0045.211219T0402Z-211220T1200Z/
/O.CON.KMFR.SC.Y.0131.000000T0000Z-211219T1800Z/
/O.CON.KMFR.SE.W.0081.211219T1800Z-211220T1200Z/
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-
802 PM PST Sat Dec 18 2021

...GALE WARNING NOW IN EFFECT UNTIL 4 AM PST MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
4 AM PST MONDAY...

* WHAT...South 25 to 30 kt with gusts to 35 kt and steep to very
  steep, short period seas of 8 to 12 feet through Sunday 
  morning. South gales 30 to 35 kt with gusts to 40 kt and very 
  steep, short period seas of 10 to 16 feet will develop late 
  Sunday morning through Sunday night. These conditions may 
  persist into Monday morning. 

* WHERE...Gales will affect the waters between 2 to 30 nm from
  shore and near capes from Gold Beach to Cape Blanco this evening
  into tonight with small craft advisory conditions elsewhere.
  Gales will expand late tonight and Sunday morning across areas
  form Cape Sebastian to Cape Blanco and beyond 10 nm from shore
  south of Cape Sebastian with small craft advisory for other
  areas. These gales will persist into Sunday night while very
  steep hazardous seas affect all the waters late Sunday morning
  through Sunday night. 

* WHEN...For the Hazardous Seas Warning, from 10 AM Sunday to 4 
  AM PST Monday. For the Gale Warning, until 4 AM PST Monday. 
  For the Small Craft Advisory, until 10 AM PST Sunday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
952 
WHUS76 KMFR 190935
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
135 AM PST Sun Dec 19 2021

PZZ376-192245-
/O.CAN.KMFR.SC.Y.0131.000000T0000Z-211219T1800Z/
/O.EXT.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.CAN.KMFR.SE.W.0081.211219T1800Z-211220T1200Z/
/O.NEW.KMFR.SE.W.0082.211221T0000Z-211221T1200Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
135 AM PST Sun Dec 19 2021

...GALE WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 PM MONDAY TO 4 AM PST
TUESDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt with very
  steep and hazardous short period seas 12 to 17 ft through Monday
  afternoon. Winds ease to 20 to 30 kt Monday evening, but fresh
  swell will maintain very steep and hazardous seas of 12 to 15 ft
  into early Tuesday morning.

* WHERE...All areas. 

* WHEN...For the Gale Warning, until 4 PM PST Monday. For the 
  Hazardous Seas Warning, from 4 PM Monday to 4 AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ350-356-192245-
/O.CAN.KMFR.SC.Y.0131.000000T0000Z-211219T1800Z/
/O.EXT.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.EXT.KMFR.SE.W.0081.211219T0935Z-211221T1200Z/
/O.NEW.KMFR.SC.Y.0132.211221T0000Z-211221T1200Z/
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-
135 AM PST Sun Dec 19 2021

...GALE WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 4 AM PST TUESDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM MONDAY TO 4 AM PST
TUESDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt with very
  steep and hazardous short period seas 9 to 14 ft through Monday
  afternoon. Winds ease to 10 to 20 kt Monday evening, but fresh
  swell will maintain steep to very steep and hazardous seas of 8
  to 12 into early Tuesday morning.

* WHERE...Gales are expected generally beyond 3 to 5 nm from
  shore, except near shore in the vicinity of Cape Blanco.
  Hazardous warning level seas are expected elsewhere through
  Monday afternoon. Then, warning level seas continue into Tuesday
  morning for areas beyond 5 nm from shore with conditions
  hazardous to small craft expected within 5 nm from shore. 

* WHEN...For the Gale Warning, until 4 PM PST Monday. For the 
  Hazardous Seas Warning, until 4 AM PST Tuesday. For the Small 
  Craft Advisory, from 4 PM Monday to 4 AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ370-192245-
/O.CAN.KMFR.SC.Y.0131.000000T0000Z-211219T1800Z/
/O.EXT.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.EXT.KMFR.SE.W.0081.211219T0935Z-211221T1200Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
135 AM PST Sun Dec 19 2021

...GALE WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 4 AM PST TUESDAY...

* WHAT...South to southeast winds 25 to 35 kt with gusts up to 45
  kt with very steep and hazardous short period seas 12 to 17 ft
  through Monday afternoon. Winds ease to 20 to 25 kt Monday 
  evening, but fresh swell will maintain very steep and hazardous 
  seas of 12 to 15 ft into early Tuesday morning.

* WHERE...Gales are expected from Reedsport southward, with
  hazardous warning level seas expected north of Reedsport.

* WHEN...For the Gale Warning, until 4 PM PST Monday. For the 
  Hazardous Seas Warning, until 4 AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
343 
WHUS76 KMFR 192203
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
203 PM PST Sun Dec 19 2021

PZZ370-201115-
/O.CAN.KMFR.SE.W.0081.000000T0000Z-211221T1200Z/
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.EXB.KMFR.SE.W.0082.211221T0000Z-211221T1800Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
203 PM PST Sun Dec 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 PM MONDAY TO 10 AM PST
TUESDAY...

* WHAT...South to southeast winds 25 to 35 kt with gusts up to 45
  kt with very steep and hazardous short period seas 12 to 17 ft
  through Monday afternoon. Winds ease to 20 to 25 kt Monday
  evening, but fresh swell will maintain very steep and hazardous
  seas of 12 to 15 ft into Tuesday morning.

* WHERE...All areas.

* WHEN...For the Gale Warning, until 4 PM PST Monday. For the 
  Hazardous Seas Warning, from 4 PM Monday to 10 AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ356-201115-
/O.EXT.KMFR.SE.W.0081.000000T0000Z-211221T0600Z/
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.EXT.KMFR.SC.Y.0132.211221T0000Z-211221T1800Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
203 PM PST Sun Dec 19 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 10 PM PST MONDAY...
...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 4 PM MONDAY TO 10 AM
PST TUESDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt with very
  steep and hazardous short period seas 9 to 14 ft through Monday
  afternoon. Winds ease to 10 to 20 kt Monday evening, but fresh
  swell will maintain steep to very steep and hazardous seas of 8
  to 12 into Tuesday morning.

* WHERE...Gales are expected generally beyond 3 to 5 nm from 
  shore, except near shore in the vicinity of Cape Blanco. 
  Hazardous warning level seas are expected elsewhere through 
  Monday afternoon. Then, warning level seas continue into 
  Tuesday morning for areas beyond 5 nm from shore with 
  conditions hazardous to small craft expected within 5 nm from 
  shore.

* WHEN...For the Hazardous Seas Warning, until 10 PM PST Monday. 
  For the Gale Warning, until 4 PM PST Monday. For the Small 
  Craft Advisory, from 4 PM Monday to 10 AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ350-201115-
/O.EXT.KMFR.SE.W.0081.000000T0000Z-211221T1800Z/
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.EXT.KMFR.SC.Y.0132.211221T0000Z-211221T1800Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
203 PM PST Sun Dec 19 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 10 AM PST TUESDAY...
...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 4 PM MONDAY TO 10 AM
PST TUESDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt with very
  steep and hazardous short period seas 9 to 14 ft through Monday
  afternoon. Winds ease to 10 to 20 kt Monday evening, but fresh
  swell will maintain steep to very steep and hazardous seas of 8
  to 12 into Tuesday morning.

* WHERE...Gales are expected generally beyond 3 to 5 nm from 
  shore, except near shore in the vicinity of Cape Blanco. 
  Hazardous warning level seas are expected elsewhere through 
  Monday afternoon. Then, warning level seas continue into 
  Tuesday morning for areas beyond 5 nm from shore with 
  conditions hazardous to small craft expected within 5 nm from 
  shore.

* WHEN...For the Hazardous Seas Warning, until 10 AM PST 
  Tuesday. For the Gale Warning, until 4 PM PST Monday. For the 
  Small Craft Advisory, from 4 PM Monday to 10 AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ376-201115-
/O.EXT.KMFR.GL.W.0045.000000T0000Z-211221T0600Z/
/O.EXT.KMFR.SE.W.0082.211221T0000Z-211221T1800Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
203 PM PST Sun Dec 19 2021

...GALE WARNING NOW IN EFFECT UNTIL 10 PM PST MONDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 4 PM MONDAY TO 10 AM
PST TUESDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt with very
  steep and hazardous short period seas 12 to 17 ft through Monday
  afternoon. Winds ease to 20 to 30 kt by late Monday evening, but
  fresh swell will maintain very steep and hazardous seas of 12 to
  15 ft into Tuesday morning.

* WHERE...All areas.

* WHEN...For the Gale Warning, until 10 PM PST Monday. For the 
  Hazardous Seas Warning, from 4 PM Monday to 10 AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
833 
WHUS76 KMFR 200859
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
1259 AM PST Mon Dec 20 2021

PZZ356-202200-
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.CON.KMFR.SE.W.0081.000000T0000Z-211221T0600Z/
/O.CON.KMFR.SC.Y.0132.211221T0000Z-211221T1800Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
1259 AM PST Mon Dec 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST TUESDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt with very
  steep and hazardous short period seas 10 to 15 ft through this 
  afternoon. Winds ease to 10 to 20 kt this evening, but fresh 
  swell will maintain steep to very steep and hazardous seas of 8 
  to 12 ft into Tuesday morning.

* WHERE...Gales are expected generally beyond 3 to 5 nm from
  shore, except near shore in the vicinity of Cape Blanco.
  Hazardous warning level seas are expected elsewhere through this 
  afternoon. Then, warning level seas continue into Tuesday 
  morning for areas beyond 5 nm from shore with conditions 
  hazardous to small craft expected within 5 nm from shore.

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Hazardous Seas Warning, until 10 PM PST this evening. 
  For the Small Craft Advisory, from 4 PM this afternoon to 10 
  AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ350-202200-
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.CON.KMFR.SE.W.0081.000000T0000Z-211221T1800Z/
/O.CON.KMFR.SC.Y.0132.211221T0000Z-211221T1800Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
1259 AM PST Mon Dec 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST TUESDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt with very
  steep and hazardous short period seas 10 to 15 ft through this 
  afternoon. Winds ease to 10 to 20 kt this evening, but fresh 
  swell will maintain steep to very steep and hazardous seas of 8 
  to 12 ft into Tuesday morning.

* WHERE...Gales are expected generally beyond 3 to 5 nm from
  shore, except near shore in the vicinity of Cape Blanco.
  Hazardous warning level seas are expected elsewhere through this 
  afternoon. Then, warning level seas continue into Tuesday 
  morning for areas beyond 5 nm from shore with conditions 
  hazardous to small craft expected within 5 nm from shore.

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Hazardous Seas Warning, until 10 AM PST Tuesday. For 
  the Small Craft Advisory, from 4 PM this afternoon to 10 AM 
  PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ370-202200-
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.CON.KMFR.SE.W.0082.211221T0000Z-211221T1800Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
1259 AM PST Mon Dec 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST TUESDAY...

* WHAT...South to southeast winds 25 to 35 kt with gusts up to 45
  kt with very steep and hazardous short period seas 15 to 18 ft
  through this afternoon. Winds ease to 20 to 25 kt this evening,
  but fresh swell will maintain very steep and hazardous seas of 
  12 to 15 ft into Tuesday morning.

* WHERE...All areas.

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Hazardous Seas Warning, from 4 PM this afternoon to 10 
  AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ376-202200-
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0600Z/
/O.CON.KMFR.SE.W.0082.211221T0000Z-211221T1800Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
1259 AM PST Mon Dec 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM PST TUESDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt with very
  steep and hazardous short period seas 13 to 18 ft through this
  afternoon. Winds ease to 20 to 30 kt by late this evening, but 
  fresh swell will maintain very steep and hazardous seas of 12 to
  15 ft into Tuesday morning.

* WHERE...All areas.

* WHEN...For the Gale Warning, until 10 PM PST this evening. For 
  the Hazardous Seas Warning, from 4 PM this afternoon to 10 AM 
  PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
399 
WHUS76 KMFR 202218
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
218 PM PST Mon Dec 20 2021

PZZ370-211130-
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.EXT.KMFR.SE.W.0082.211221T0000Z-211222T0600Z/
/O.EXB.KMFR.SC.Y.0132.211221T1800Z-211222T0600Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
218 PM PST Mon Dec 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 10 PM PST TUESDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 10 PM PST
TUESDAY...

* WHAT...For the Gale Warning, south winds 25 to 30 kt with gusts
  up to 35 kt and seas 13 to 17 ft at 10 seconds. For the
  Hazardous Seas Warning, very steep and hazardous seas 10 to 15
  ft at 11 seconds expected. For the Small Craft Advisory, south 
  winds 10 to 20 kt with gusts up to 25 kt and seas 8 to 10 ft at 
  10 seconds expected.

* WHERE...All of the area for both the Gale Warning today then the
  Hazardous Seas Warning into Tuesday morning. Then, the Hazardous
  Seas Warning continues in the outer portion through Tuesday
  evening with a Small Craft Advisory in the remainder of the
  area. 

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Hazardous Seas Warning, until 10 PM PST Tuesday. For 
  the Small Craft Advisory, from 10 AM to 10 PM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ376-211130-
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0600Z/
/O.EXT.KMFR.SE.W.0082.211221T0000Z-211222T0600Z/
/O.EXB.KMFR.SC.Y.0132.211221T1800Z-211222T0600Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
218 PM PST Mon Dec 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...
...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 10 PM PST TUESDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 10 PM PST
TUESDAY...

* WHAT...For the Gale Warning, south winds 25 to 35 kt with gusts
  up to 40 kt and seas 12 to 17 ft at 10 seconds. For the
  Hazardous Seas Warning, very steep and hazardous seas 11 to 16
  ft at 10 seconds expected. For the Small Craft Advisory, south
  winds 15 to 20 kt with gusts up to 30 kt and seas 8 to 10 ft at
  10 seconds expected.

* WHERE...All of the area for both the Gale Warning today then the
  Hazardous Seas Warning into Tuesday morning. Then, the Hazardous
  Seas Warning continues in the outer portion through Tuesday
  evening with a Small Craft Advisory in the remainder of the
  area.

* WHEN...For the Gale Warning, until 10 PM PST this evening. For 
  the Hazardous Seas Warning, until 10 PM PST Tuesday. For the 
  Small Craft Advisory, from 10 AM to 10 PM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ356-211130-
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.CON.KMFR.SE.W.0081.000000T0000Z-211221T0600Z/
/O.CON.KMFR.SC.Y.0132.211221T0000Z-211221T1800Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
218 PM PST Mon Dec 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...

* WHAT...For the Gale Warning, south winds 15 to 25 kt with gusts
  up to 35 kt and seas 9 to 13 ft at 10 seconds. For the Hazardous
  Seas Warning, very steep and hazardous seas 10 to 13 ft at 10 
  seconds. For the Small Craft Advisory, seas 7 to 10 ft at 10 
  seconds expected.

* WHERE....Gale Warning in the outer portion and Hazardous Seas
  Warning in the inner portion this afternoon. Hazardous Seas
  Warning in the outer portion and Small Craft Advisory in the
  inner portion this evening. A Small Craft Advisory for all of
  the area late tonight into Tuesday morning.  

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Hazardous Seas Warning, until 10 PM PST this evening. 
  For the Small Craft Advisory, until 10 AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

PZZ350-211130-
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.CON.KMFR.SE.W.0081.000000T0000Z-211221T1800Z/
/O.CON.KMFR.SC.Y.0132.211221T0000Z-211221T1800Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
218 PM PST Mon Dec 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...

* WHAT...For the Gale Warning, south winds 15 to 25 kt with gusts
  up to 35 kt and seas 10 to 13 ft at 10 seconds. For the
  Hazardous Seas Warning, very steep and hazardous seas 8 to 11 ft
  at 10 seconds. For the Small Craft Advisory, seas 7 to 9 ft at 
  10 seconds expected.

* WHERE...Gale Warning in the outer portion and Hazardous Seas
  Warning in the inner portion this afternoon. Hazardous Seas
  Warning in the outer portion and Small Craft Advisory in the
  inner portion this evening. A Small Craft Advisory for all of
  the area late tonight into Tuesday morning. 

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Hazardous Seas Warning, until 10 AM PST Tuesday. For 
  the Small Craft Advisory, until 10 AM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
341 
WHUS76 KMFR 202358
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
358 PM PST Mon Dec 20 2021

PZZ356-211300-
/O.EXP.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.CON.KMFR.SE.W.0081.000000T0000Z-211221T0600Z/
/O.CON.KMFR.SC.Y.0132.211221T0000Z-211221T1800Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
358 PM PST Mon Dec 20 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...
...GALE WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 8 to 10 ft at 10 seconds. For the Small Craft 
  Advisory, seas 7 to 10 ft at 10 seconds expected.

* WHERE...Hazardous Seas Warning for the waters beyond 5 nm from
  shore and near Cape Blanco and Small Craft Advisory elsewhere
  through this evening. A Small Craft Advisory for all of the area  
  tonight into Tuesday morning.

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Hazardous Seas Warning, until 10 PM PST this evening. 
  For the Small Craft Advisory, until 10 AM PST Tuesday.

* 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.

&&

$$

PZZ350-211300-
/O.EXP.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.CON.KMFR.SE.W.0081.000000T0000Z-211221T1800Z/
/O.CON.KMFR.SC.Y.0132.211221T0000Z-211221T1800Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
358 PM PST Mon Dec 20 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...
...GALE WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 7 to 11 ft at 10 seconds. For the Small Craft 
  Advisory, seas 7 to 11 ft at 10 seconds expected.

* WHERE...Hazardous Seas Warning for the waters beyond 5 nm from
  shore and near Cape Blanco with Small Craft Advisory conditions
  elsewhere through this evening. A Small Craft Advisory for all
  of the area  tonight into Tuesday morning.

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Hazardous Seas Warning, until 10 AM PST Tuesday. For 
  the Small Craft Advisory, until 10 AM PST Tuesday.

* 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.

&&

$$

PZZ370-211300-
/O.EXP.KMFR.GL.W.0045.000000T0000Z-211221T0000Z/
/O.CON.KMFR.SE.W.0082.211221T0000Z-211222T0600Z/
/O.CON.KMFR.SC.Y.0132.211221T1800Z-211222T0600Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
358 PM PST Mon Dec 20 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM PST
TUESDAY...
...GALE WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 10 to 15 ft at 11 seconds expected. For the 
  Small Craft Advisory, south winds 10 to 20 kt with gusts up to 
  25 kt and seas 8 to 10 ft at 10 seconds expected.

* WHERE...Hazardous Seas Warning conditions will affect all the
  area through Tuesday morning. Then, the Hazardous Seas Warning
  continues in the outer portion, beyond 40 nm from shore, through
  Tuesday evening with a Small Craft Advisory in the remainder of
  the area.

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Hazardous Seas Warning, until 10 PM PST Tuesday. For 
  the Small Craft Advisory, from 10 AM to 10 PM PST Tuesday.

* 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.

&&

$$

PZZ376-211300-
/O.CON.KMFR.GL.W.0045.000000T0000Z-211221T0600Z/
/O.CON.KMFR.SE.W.0082.211221T0000Z-211222T0600Z/
/O.CON.KMFR.SC.Y.0132.211221T1800Z-211222T0600Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
358 PM PST Mon Dec 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM PST
TUESDAY...

* WHAT...For the Gale Warning, south winds 25 to 35 kt with gusts
  up to 40 kt and seas 12 to 17 ft at 10 seconds. For the
  Hazardous Seas Warning, very steep and hazardous seas 11 to 16
  ft at 10 seconds expected. For the Small Craft Advisory, south
  winds 15 to 20 kt with gusts up to 30 kt and seas 8 to 10 ft at
  10 seconds expected.

* WHERE...All of the area for both the Gale Warning today then the
  Hazardous Seas Warning into Tuesday morning. Then, the Hazardous
  Seas Warning continues in the outer portion through Tuesday
  evening with a Small Craft Advisory in the remainder of the
  area.

* WHEN...For the Gale Warning, until 10 PM PST this evening. For 
  the Hazardous Seas Warning, until 10 PM PST Tuesday. For the 
  Small Craft Advisory, from 10 AM to 10 PM PST Tuesday.

* IMPACTS...Strong winds and very steep seas could capsize or 
  damage vessels. Low visibility conditions are expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid strong winds and very steep
seas. Remain in port, seek safe harbor, alter course, and/or
secure the vessel for severe conditions.

&&

$$

Visit us at https://www.weather.gov/Medford
950 
WHUS76 KMFR 210559
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
959 PM PST Mon Dec 20 2021

PZZ376-211900-
/O.EXP.KMFR.GL.W.0045.000000T0000Z-211221T0600Z/
/O.CON.KMFR.SE.W.0082.000000T0000Z-211222T0600Z/
/O.CON.KMFR.SC.Y.0132.211221T1800Z-211222T0600Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
959 PM PST Mon Dec 20 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM PST
TUESDAY...
...GALE WARNING WILL EXPIRE AT 10 PM PST THIS EVENING...

* WHAT...For the Hazardous Seas Warning, south winds 20 to 25 kt 
  with gusts up to 30 kt and very steep, hazardous seas 10 to 15 
  ft at 10 seconds. For the Small Craft Advisory, south winds 15 
  to 25 kt with gusts up to 30 kt and seas 8 to 12 ft at 10 
  seconds expected.

* WHERE...All of the area for the Hazardous Seas Warning tonight
  through late Tuesday morning. Then, the Hazardous Seas Warning
  continues across the outer portion of the area, beyond 40 nm
  from shore, through Tuesday evening with a Small Craft Advisory
  in the remainder of the area.

* WHEN...For the Hazardous Seas Warning, until 10 PM PST 
  Tuesday. For the Small Craft Advisory, from 10 AM to 10 PM PST 
  Tuesday.

* 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.

&&

$$

PZZ356-211800-
/O.EXP.KMFR.SE.W.0081.000000T0000Z-211221T0600Z/
/O.CON.KMFR.SC.Y.0132.000000T0000Z-211221T1800Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
959 PM PST Mon Dec 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...
...HAZARDOUS SEAS WARNING WILL EXPIRE AT 10 PM PST THIS EVENING...

* WHAT...Steep seas 7 to 10 ft at 10 seconds.

* WHERE...All the area. 

* WHEN...Until 10 AM PST Tuesday.

* 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.

&&

$$

PZZ350-211800-
/O.EXT.KMFR.SE.W.0081.000000T0000Z-211221T0600Z/
/O.CON.KMFR.SC.Y.0132.000000T0000Z-211221T1800Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
959 PM PST Mon Dec 20 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...

* WHAT...For the Small Craft Advisory, seas 7 to 10 ft at 10 
  seconds.

* WHERE...All the area.

* WHEN...For the Hazardous Seas Warning, until 10 PM PST this 
  evening. For the Small Craft Advisory, until 10 AM PST Tuesday.

* 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.

&&

$$

PZZ370-211900-
/O.CON.KMFR.SE.W.0082.000000T0000Z-211222T0600Z/
/O.CON.KMFR.SC.Y.0132.211221T1800Z-211222T0600Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
959 PM PST Mon Dec 20 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM PST
TUESDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 10 to 14 ft at 10 seconds. For the Small Craft 
  Advisory, south winds 10 to 20 kt with gusts up to 30 kt and 
  seas 8 to 10 ft at 10 seconds expected.

* WHERE...All of the area for the Hazardous Seas Warning tonight
  through late Tuesday morning. Then, the Hazardous Seas Warning
  continues across the outer portion of the area, beyond 40 nm
  from shore, through Tuesday evening with a Small Craft Advisory
  in the remainder of the area.

* WHEN...For the Hazardous Seas Warning, until 10 PM PST 
  Tuesday. For the Small Craft Advisory, from 10 AM to 10 PM PST 
  Tuesday.

* 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
684 
WHUS76 KMFR 210605
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
1005 PM PST Mon Dec 20 2021

PZZ350-211800-
/O.EXP.KMFR.SE.W.0081.000000T0000Z-211221T0600Z/
/O.CON.KMFR.SC.Y.0132.000000T0000Z-211221T1800Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
1005 PM PST Mon Dec 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...
...HAZARDOUS SEAS WARNING HAS EXPIRED...

* WHAT...Steep seas 7 to 10 ft at 10 seconds.

* WHERE...All the area.

* WHEN...For the Hazardous Seas Warning, until 10 PM PST this 
  evening. For the Small Craft Advisory, until 10 AM PST Tuesday.

* 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.

&&

$$

PZZ370-376-211915-
/O.CON.KMFR.SE.W.0082.000000T0000Z-211222T0600Z/
/O.CON.KMFR.SC.Y.0132.211221T1800Z-211222T0600Z/
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-
1005 PM PST Mon Dec 20 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM PST
TUESDAY...

* WHAT...For the Hazardous Seas Warning, south winds 15 to 25 kt
  with gusts up to 30 kt very steep and hazardous seas 10 to 15 
  ft at 10 seconds. For the Small Craft Advisory, south winds 10 
  to 20 kt with gusts up to 25 kt and seas 8 to 10 ft at 10 
  seconds expected.

* WHERE...All of the area for the Hazardous Seas Warning tonight 
  through late Tuesday morning. Then, the Hazardous Seas Warning 
  continues across the outer portion of the area, beyond 40 nm 
  from shore, through Tuesday evening with a Small Craft 
  Advisory in the remainder of the area.

* WHEN...For the Hazardous Seas Warning, until 10 PM PST 
  Tuesday. For the Small Craft Advisory, from 10 AM to 10 PM PST 
  Tuesday.

* 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.

&&

$$

PZZ356-211800-
/O.CON.KMFR.SC.Y.0132.000000T0000Z-211221T1800Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
1005 PM PST Mon Dec 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...

* WHAT...Steep seas 7 to 10 ft at 10 seconds.

* WHERE...All the area.

* WHEN...Until 10 AM PST Tuesday.

* 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

What forecasters said that day

The local office's own words before this hazardous seas 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 hazardous seas warning went out at Dec 18, 9:05 AM PST, 5 hours 29 minutes earlier.

Area forecast discussion, Dec 18, 9:05 AM PST, 5 hours 29 minutes before
Area Forecast Discussion
National Weather Service Medford OR
905 AM PST Sat Dec 18 2021

.UPDATE...No changes necessary this morning, with the forecast
running right on track. We will be focusing efforts today on the
upcoming precipitation tonight and tomorrow with heavy rain
expected along the coast, and possible heavy snow in the Mount
Shasta area early next week. See the previous discussion below
for more details. -BPN

&&

.AVIATION...18/12Z TAFs... Conditions are mix of VFR and valley
LIFR/IFR this morning, including the Klamath Basin. So far, VFR
conditions continue in the Rogue Valley and Umpqua Basin likely due
to higher level cloud cover streaming through. However, conditions
in the Rogue Valley will likely deteriorate to IFR/LIFR by sunrise
due to recent precipitation. Lower conditions are expected to
improve late this morning to VFR for most areas. The exception will
be along the coast, where VFR conditions will gradually lower to
MVFR with terrain obscurations developing. This is due to an
approaching front that will stall along the coast later this
afternoon and evening. /BR-y

&&

.MARINE...Updated 900 AM PST Saturday, 18 December, 2021...A frontal
system will bring strong, gusty south winds and steep seas today
and tonight with gales north of Cape Blanco. Gales may shift to
south of Cape Arago later tonight through Sunday while seas,
dominated by wind wave and fresh swell, continue to build and
likely become very steep. Active weather is expected to continue
next week as broad low pressure stalls offshore, with with seas
continuing to be dominated by fresh southerly swell. BR-y/Spilde

&&

.PREV DISCUSSION... /Issued 317 AM PST Sat Dec 18 2021/

DISCUSSION...18/00Z NAM/GFS/EC in. 18/06Z NAM in.

High and mid level clouds are overspreading the area and limiting
the coverage of low cloud and fog in the west side valleys, but
there is still plenty of low stuff over the east side and northern
California.

The upper level long wave ridge that brought the break in
precipitation is now breaking to the east of the area, and the
upstream trough is moving in.

That trough will weaken as it moves onshore Saturday night (18-19
Dec) as short waves diving down the back side of the trough will
cause a new trough to dig offshore. Eventually this trough will
shear, leaving a cutoff low near 40N 140W Sunday (19 Dec). There
it will remain through at least Monday, although it will wobble
around a bit. Southwest flow aloft will persist over the Pacific
Northwest, which will make the area vulnerable to short waves
ejecting from the low.

The front associated with the trough will begin to move onshore
Saturday (18 Dec). It will stall near the coast as the trough
shears and the upper level support moves back offshore.
Therefore, expect an extended period of precipitation that will
occasionally be enhanced by short waves moving along the frontal
boundary. This pattern will persist through Sunday (19 Dec).

The models are having a difficult time with the strength and
location of the frontal short waves. The range in the model
solutions present a challenge, especially with regard to the
marine forecast, as these variances will make a big difference as
to where the strongest winds and heaviest precipitation will set
up.

The stalling of the front offshore means that the bulk of the
rain in the near term will fall along the coast north of roughly
Port Orford, with several inches of precipitation likely along the
north coast and the Coast Range. Most of this (up to 2 inches)
will fall in a 12 hour period Sunday morning. Other parts of the
west side, such as the south coast, the Umpqua Basin, the
Kalmiopsis, and the northern Cascades will see significant
rain/snow, but it will be lighter. Other areas, such as northern
California, Jackson County, and the entire East Side, will see
little or no precipitation through Sunday night.

This could change though, as the short waves along the front will
be calling the shots here, and deviations from the current
forecast scenario could shift the area of strongest winds and
heaviest precipitation north or south. At this point it does not
look like heavier precipitation will shift inland though.

As far as snow goes, there won't be much of it through Sunday
night. The crest of the Cascades will see up to 6 inches of snow
through Sunday night, but most areas will see less than 3 inches.
Snow levels will be around 6000 feet through Sunday, falling to
4000 feet Sunday night.

Long term discussion from the Friday afternoon AFD...Monday 20 Dec
through through Friday night 24/25 Dec 2021. The week will start
with a southerly flow regime, favoring gusty winds in the Shasta
Valley and areas east of the Cascades, and potentially the Bear
Creek Valley (Ashland north to Medford). This pattern also favors
precipitation along the Curry County coast and in Northern
California, particularly the Mount Shasta area. We are now
advertising gusty winds in the Shasta Valley on Monday in the
forecast. Additionally, a deep low over the Northeast Pacific will
remain fairly stationary through the week, occasionally ejecting
energy and moisture into the forecast area. The first of those
will be Monday night into Tuesday, spreading moderate to
potentially heavy precipitation into Northern California. Snow
levels will likely be right around the Mt Shasta City elevation
(3500 ft), and several inches of snow is in the current forecast
from Monday night through Tuesday at the Mount Shasta City
elevation. Models are suggesting a low to medium impact from this
system, much less significant than the storms earlier this week.
Even though heavier precipitation will be focused over Northern
California Monday night into Tuesday, lesser rain and mountain
snow will still be possible Tuesday in most areas.

Additional systems are likely to impact the forecast area through
the rest of the week.  Eventually, late in the week, the offshore
low likely opens up into an upper trough, and this trough moves
towards the coast. Confidence in this evolution is moderate per the
100 ensemble members of the European, American, and Canadian
ensembles. If the low opens up and pushes eastward, this will allow
for more widespread precipitation to enter Southern Oregon and
Northern California, and as this happens snow levels will likely
lower and the weather impacts will increase as rain and mountain
snow affect a broader portion of the forecast area. Looking a bit
further out in time, the European Ensemble solution for the 10-day
precipitation outlook suggests above normal precipitation for much
of Southern Oregon and Northern California. So, prepare for December
to bring more in the way of rain and mountain snow before the
month's end. -Keene

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...
CA...None.

Pacific Coastal Waters...
     Gale Watch from this evening through Sunday afternoon for
     PZZ350-356-370-376.
     Small Craft Advisory until 10 PM PST this evening for
     PZZ350-356-370-376.
     Hazardous Seas Watch from this evening through Sunday afternoon
     for PZZ350-356-370-376.
     Gale Warning until 10 PM PST this evening for PZZ350-370.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 17, 9:31 PM PSTGale WarningMFR23 hr
Dec 17, 9:31 PM PSTHazardous Seas WatchMFR17 hr
Dec 18, 2:34 PM PSTGale WarningMFR55 hr

Nearby

Hazardous Seas Warnings in Oregon, 2021Every hazardous seas warning 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.