Alert archive / Oregon / Small Craft Advisories in 2021

Small Craft Advisory 5, NWS Medford, OR

January 12, 2021

NWS Medford, OR issued this small craft advisory at Jan 12, 2021, 3:35 PM PST. It took effect at Jan 13, 2021, 9:00 AM PST. It was in force for 25 hr.

The area

The counties it named.

The facts

Issued
Jan 12, 2021, 3:35 PM PST (23:35 UTC)
In effect from
Jan 13, 2021, 9:00 AM PST
Expired
Jan 14, 2021, 10:00 AM PST
In force
25 hr
Issued by
NWS Medford, OR

The text

As transmitted.

139 
WHUS76 KMFR 122335
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
335 PM PST Tue Jan 12 2021

PZZ370-131245-
/O.EXT.KMFR.SR.W.0003.000000T0000Z-210113T0900Z/
/O.CON.KMFR.GL.W.0005.000000T0000Z-210113T1200Z/
/O.NEW.KMFR.SE.W.0006.210113T1200Z-210113T1800Z/
/O.NEW.KMFR.SC.Y.0005.210113T1800Z-210114T1600Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
335 PM PST Tue Jan 12 2021

...STORM WARNING NOW IN EFFECT UNTIL 1 AM PST WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 10 AM PST
WEDNESDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 8 AM
PST THURSDAY...

* WHAT...For the Storm Warning, south winds 30 to 40 kt with gusts
  up to 60 kt and seas 19 to 24 ft at 18 seconds. For the Gale
  Warning, southwest winds 30 to 40 kt with gusts up to 55 kt and
  seas 18 to 23 ft at 18 seconds. For the Hazardous Seas Warning,
  very steep and hazardous seas around 18 ft at 16 seconds 
  expected. For the Small Craft Advisory, seas 11 to 14 ft at 15 
  seconds expected.

* WHERE...All hazards, except the Storm Warning, are for the 
  entire area. The Storm Warning is for areas from about 3NM to 25
  NM west of the coast from Cape Blanco to Florence. 

* WHEN...For the Storm Warning, until 1 AM PST Wednesday. For the
  Gale Warning, until 4 AM PST Wednesday. For the Hazardous Seas 
  Warning, from 4 AM to 10 AM PST Wednesday. For the Small Craft 
  Advisory, from 10 AM Wednesday to 8 AM PST Thursday.

* IMPACTS...Very strong winds and very steep seas could capsize 
  or damage vessels. Visibilities will be significantly reduced.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for very strong winds and very steep and hazardous seas.

&&

$$

PZZ376-131245-
/O.CON.KMFR.GL.W.0005.000000T0000Z-210113T1200Z/
/O.NEW.KMFR.SE.W.0006.210113T1200Z-210113T1800Z/
/O.NEW.KMFR.SC.Y.0005.210113T1800Z-210114T1600Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
335 PM PST Tue Jan 12 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 10 AM PST
WEDNESDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 8 AM
PST THURSDAY...

* WHAT...For the Gale Warning, south winds 30 to 40 kt with gusts
  up to 50 kt and seas 19 to 23 ft at 18 seconds. For the 
  Hazardous Seas Warning, very steep and hazardous seas around 18 
  ft at 16 seconds expected. For the Small Craft Advisory, seas 11
  to 14 ft at 16 seconds expected.

* WHERE...All areas.

* WHEN...For the Gale Warning, until 4 AM PST Wednesday.For the 
  Hazardous Seas Warning, from 4 AM to 10 AM PST Wednesday. For 
  the Small Craft Advisory, from 10 AM Wednesday to 8 AM PST 
  Thursday.

* 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://www.wrh.noaa.gov/mfr/HAZARD

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.

&&

$$

PZZ350-131245-
/O.EXT.KMFR.SR.W.0003.000000T0000Z-210113T0900Z/
/O.CON.KMFR.GL.W.0005.000000T0000Z-210113T1200Z/
/O.NEW.KMFR.SC.Y.0005.210113T1200Z-210114T1600Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
335 PM PST Tue Jan 12 2021

...STORM WARNING NOW IN EFFECT UNTIL 1 AM PST WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM WEDNESDAY TO 8 AM PST
THURSDAY...

* WHAT...For the Storm Warning, south winds 35 to 45 kt with gusts
  up to 60 kt and seas 18 to 22 ft at 18 seconds. For the Gale 
  Warning, south winds 35 to 45 kt with gusts up to 55 kt and seas
  18 to 22 ft at 18 seconds. For the Small Craft Advisory, seas 
  11 to 16 ft at 16 seconds expected.

* WHERE...All areas.

* WHEN...For the Storm Warning, until 1 AM PST Wednesday. For 
  the Gale Warning, until 4 AM PST Wednesday. For the Small 
  Craft Advisory, from 4 AM Wednesday to 8 AM PST Thursday.

* IMPACTS...Very strong winds and very steep seas could capsize 
  or damage vessels. Visibilities will be significantly reduced.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for very strong winds and very steep and hazardous seas.

&&

$$

PZZ356-131245-
/O.CON.KMFR.GL.W.0005.000000T0000Z-210113T1200Z/
/O.NEW.KMFR.SC.Y.0005.210113T1200Z-210114T1600Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
335 PM PST Tue Jan 12 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM WEDNESDAY TO 8 AM PST
THURSDAY...

* WHAT...For the Gale Warning, south winds 25 to 35 kt with 
  gusts up to 50 kt and seas 19 to 21 ft at 18 seconds. For the 
  Small Craft Advisory, seas 12 to 17 ft at 16 seconds expected.

* WHERE...All areas.

* WHEN...For the Gale Warning, until 4 AM PST Wednesday. For the 
  Small Craft Advisory, from 4 AM Wednesday to 8 AM PST Thursday.

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

* ADDITIONAL INFORMATION...The storm series moving in this 
  evening and continuing into Wednesday will produce periods of 
  moderate to heavy rainfall.

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

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.

&&

$$
BTL
Visit us at https://www.weather.gov/Medford
5 follow-up statements
249 
WHUS76 KMFR 130906
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
106 AM PST Wed Jan 13 2021

PZZ370-132215-
/O.EXP.KMFR.SR.W.0003.000000T0000Z-210113T0900Z/
/O.CON.KMFR.GL.W.0005.000000T0000Z-210113T1200Z/
/O.EXT.KMFR.SE.W.0006.210113T1200Z-210113T1700Z/
/O.EXT.KMFR.SC.Y.0005.210113T1700Z-210114T1600Z/
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
106 AM PST Wed Jan 13 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS
MORNING...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 4 AM TO 9 AM PST
THIS MORNING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO
8 AM PST THURSDAY...
...STORM WARNING HAS EXPIRED...

* WHAT...For the Gale Warning, southwest winds 20 to 30 kt with
  gusts up to 35 kt and very steep seas 21 to 23 ft at 17 seconds. For
  the Hazardous Seas Warning, very steep and hazardous seas 17 to
  19 ft at 16 seconds expected. For the Small Craft Advisory, 
  seas 11 to 15 ft at 16 seconds expected.

* WHERE...All areas. Gale winds will lower from north to south
  across the area early this morning. 

* WHEN...For the Hazardous Seas Warning, from 4 AM to 9 AM PST 
  this morning. For the Gale Warning, until 4 AM PST early this 
  morning. For the Small Craft Advisory, from 9 AM this morning 
  to 8 AM PST Thursday.

* 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://www.wrh.noaa.gov/mfr/HAZARD

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.

&&

$$

PZZ350-132215-
/O.EXP.KMFR.SR.W.0003.000000T0000Z-210113T0900Z/
/O.CON.KMFR.GL.W.0005.000000T0000Z-210113T1200Z/
/O.EXB.KMFR.SE.W.0006.210113T1200Z-210113T1700Z/
/O.EXT.KMFR.SC.Y.0005.210113T1700Z-210114T1600Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
106 AM PST Wed Jan 13 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS
MORNING...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 9 AM PST THIS
MORNING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO
8 AM PST THURSDAY...
...STORM WARNING HAS EXPIRED...

* WHAT...For the Gale Warning, southwest winds 25 to 35 kt with 
  gusts up to 40 kt and seas 20 to 22 ft at 17 seconds. For the 
  Hazardous Seas Warning, very steep and hazardous seas 17 to 19 
  ft at 16 seconds expected. For the Small Craft Advisory, seas 
  11 to 15 ft at 16 seconds expected.

* WHERE...All areas.

* WHEN...For the Gale Warning, until 4 AM PST early this 
  morning. For the Hazardous Seas Warning, from 4 AM to 9 AM PST 
  this morning. For the Small Craft Advisory, from 9 AM this 
  morning to 8 AM PST Thursday.

* 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://www.wrh.noaa.gov/mfr/HAZARD

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.

&&

$$

PZZ356-132215-
/O.CON.KMFR.GL.W.0005.000000T0000Z-210113T1200Z/
/O.EXB.KMFR.SE.W.0006.210113T1200Z-210113T1700Z/
/O.EXT.KMFR.SC.Y.0005.210113T1700Z-210114T1600Z/
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
106 AM PST Wed Jan 13 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS
MORNING...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 9 AM PST THIS
MORNING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO
8 AM PST THURSDAY...

* WHAT...For the Gale Warning, south winds 25 to 35 kt with gusts
  up to 45 kt and seas 19 to 21 ft at 18 seconds. For the Small 
  Craft Advisory, seas 12 to 17 ft at 16 seconds expected.

* WHERE...All areas. 

* WHEN...For the Gale Warning, until 4 AM PST early this 
  morning. For the Hazardous Seas Warning, from 4 AM to 9 AM PST 
  this morning. For the Small Craft Advisory, from 9 AM this 
  morning to 8 AM PST Thursday.

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

* ADDITIONAL INFORMATION...The storm series moving in this 
  evening and continuing into Wednesday will produce periods of 
  moderate to heavy rainfall.

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

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.

&&

$$

PZZ376-132215-
/O.CON.KMFR.GL.W.0005.000000T0000Z-210113T1200Z/
/O.EXT.KMFR.SE.W.0006.210113T1200Z-210113T1700Z/
/O.EXT.KMFR.SC.Y.0005.210113T1700Z-210114T1600Z/
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
106 AM PST Wed Jan 13 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS
MORNING...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 4 AM TO 9 AM PST
THIS MORNING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO
8 AM PST THURSDAY...

* WHAT...For the Gale Warning, south winds 30 to 35 kt with gusts
  up to 45 kt and seas 19 to 23 ft at 18 seconds. For the 
  Hazardous Seas Warning, very steep and hazardous seas around 18 
  ft at 16 seconds expected. For the Small Craft Advisory, seas 11
  to 14 ft at 16 seconds expected.

* WHERE...All areas.

* WHEN...For the Hazardous Seas Warning, from 4 AM to 9 AM PST 
  this morning. For the Gale Warning, until 4 AM PST early this 
  morning. For the Small Craft Advisory, from 9 AM this morning 
  to 8 AM PST Thursday.

* 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://www.wrh.noaa.gov/mfr/HAZARD

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
758 
WHUS76 KMFR 131145
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
345 AM PST Wed Jan 13 2021

PZZ350-356-370-376-140045-
/O.EXP.KMFR.GL.W.0005.000000T0000Z-210113T1200Z/
/O.CON.KMFR.SE.W.0006.210113T1200Z-210113T1700Z/
/O.CON.KMFR.SC.Y.0005.210113T1700Z-210114T1600Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
Waters from 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-
345 AM PST Wed Jan 13 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 8 AM PST THURSDAY...
...GALE WARNING WILL EXPIRE AT 4 AM PST EARLY THIS MORNING...

* WHAT...For the Hazardous Seas Warning, very steep and hazardous
  seas 17 to 20 ft at 16 seconds expected. For the Small Craft 
  Advisory, seas 11 to 15 ft at 15 seconds expected.

* WHERE...All areas.

* WHEN...For the Gale Warning, until 4 AM PST early this 
  morning. For the Hazardous Seas Warning, from 4 AM to 9 AM PST 
  this morning. For the Small Craft Advisory, from 9 AM this 
  morning to 8 AM PST Thursday.

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

* ADDITIONAL INFORMATION...The storm series moving in this 
  evening and continuing into Wednesday will produce periods of 
  moderate to heavy rainfall.

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

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
479 
WHUS76 KMFR 132018
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
1218 PM PST Wed Jan 13 2021

PZZ350-356-370-376-141300-
/O.CON.KMFR.SC.Y.0005.000000T0000Z-210114T1600Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
Waters from 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-
1218 PM PST Wed Jan 13 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
THURSDAY...

* WHAT...Seas 10 to 15 ft at 16 seconds.

* WHERE...All areas.

* WHEN...Until 8 AM PST Thursday.

* IMPACTS...Steep seas could capsize or damage smaller vessels.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
BTL
Visit us at https://www.weather.gov/Medford
635 
WHUS76 KMFR 132235
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
235 PM PST Wed Jan 13 2021

PZZ350-356-141200-
/O.EXT.KMFR.SC.Y.0005.000000T0000Z-210114T1200Z/
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-
235 PM PST Wed Jan 13 2021

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

* WHAT...West-northwest swell at 14 to 15 seconds and southwest
  swell at 11 to 12 seconds will continue to bring 10 to 15 foot
  combined seas into early Thursday morning.

* WHERE...All areas.

* WHEN...Until 4 AM PST Thursday.

* IMPACTS...Steep seas could capsize or damage smaller vessels.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ370-376-141300-
/O.EXT.KMFR.SC.Y.0005.000000T0000Z-210114T1800Z/
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-
235 PM PST Wed Jan 13 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM PST THURSDAY...

* WHAT...West-northwest swell at 14 to 15 seconds and southwest
  swell at 11 to 12 seconds will continue to bring 10 to 15 foot
  combined seas through much of Thursday morning.

* WHERE...All areas until 4 AM PST, then mainly areas beyond 15NM
  of the coast.

* WHEN...Until 10 AM PST Thursday.

* IMPACTS...Steep seas could capsize or damage smaller vessels.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
BTL
Visit us at https://www.weather.gov/Medford
227 
WHUS76 KMFR 141008
MWWMFR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
208 AM PST Thu Jan 14 2021

PZZ370-376-142315-
/O.CON.KMFR.SC.Y.0005.000000T0000Z-210114T1800Z/
/O.NEW.KMFR.SC.Y.0006.210115T0600Z-210117T0600Z/
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-
208 AM PST Thu Jan 14 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 PM PST SATURDAY...

* WHAT...For the first Small Craft Advisory, seas 10 to 11 ft at
  15 seconds. For the second Small Craft Advisory, seas 14 to 17 
  ft at 17 seconds expected.

* WHERE...All areas. 

* WHEN...For the Small Craft Advisory, until 10 AM PST this 
  morning. For the Small Craft Advisory, from 10 PM this evening 
  to 10 PM PST Saturday.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ350-356-142315-
/O.EXT.KMFR.SC.Y.0005.000000T0000Z-210114T1800Z/
/O.NEW.KMFR.SC.Y.0006.210115T1200Z-210117T0600Z/
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-
208 AM PST Thu Jan 14 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 10 PM PST
SATURDAY...

* WHAT...For the first Small Craft Advisory, seas 10 to 11 ft at
  15 seconds with seas dominated by a mix of west and southwest
  swell. For the second Small Craft Advisory, seas 13 to 16 ft at
  17 seconds expected.

* WHERE...All areas. 

* WHEN...For the Small Craft Advisory, until 10 AM PST this 
  morning. For the Small Craft Advisory, from 4 AM Friday to 10 
  PM PST Saturday.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially 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 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 Jan 12, 2:48 PM PST, 47 minutes earlier.

Area forecast discussion, Jan 12, 2:48 PM PST, 47 minutes before
Area Forecast Discussion
National Weather Service Medford OR
248 PM PST Tue Jan 12 2021

.DISCUSSION...Moderate to strong winds and flooding are the main
concerns through tonight.

Heavy rain with flooding is possible, especially for the coast and
coastal mountains in southwest Oregon and a Flood watch and flood
advisory are in effect. Please see FAAMFR and FLSMFR for more
details.

Moderate to strong winds are being observed at the coast, coastal
mountains, portions of the east side and Shasta Valley with high
wind criteria being met at the coast, and higher terrain east of the
Cascades. High wind warning and a wind advisory remain in effect.
Please see NPWMFR for more details.

Satellite image shows a long plume of moisture courtesy of an
atmospheric river (AR) from about the Hawaiian Islands with strong
upper jet support already in our area. This in addition to a
favorable upslope flow will squeeze out even more moisture over the
coastal mountains through this evening. However there are some
indications rainfall rates could diminish some on the overnight
period before increasing again for about a 6 hour period late
tonight. This is being supported by the operational GFS and GEFS
ensemble mean which suggest the Water Vapor Transport will actually
decrease later this evening and tonight. Typically these events can
be tricky in that rainfall rates can fluctuate up and down, so
confidence on decreasing rainfall rates is low. For example, Red
Mound reported 0.28, 0.50, 0.57, 0.33 and 0.59 of an inch in the
past 5 hours.

With that said, expect periods of moderate to heavy rain at the
coast into early Wednesday morning as moisture transport is aided by
strong 850-700mb flow within the AR. Storm total rainfall from this
evening into Wednesday afternoon are expected to be 1-2 inches north
of Cape Blanco and 2-4 inches in Curry County (highest totals in the
coast ranges due to orographic enhancement). The southwest component
will result in less rainfall in the Rogue Valley However will be
higher along the Cascades, where another area of more enhanced
precipitation is possible north of Highway 140 in the mountains.
Rain amounts for the Cascades are expected to be 1-3 inches, and
0.30-0.50 in the Rogue valley with the best chance for 0.50 in the
northern and eastern part of the valley. The rain will benefit from
some absorption by the snow pack in the Cascades/Siskiyous. Despite
that, some melting of the snow is expected with snow levels between
8000 and 9000 feet, therefore expect some added inflows into the
drainages. While significant rises are expected on most basins from
the Cascades westward, most main stem rivers (at least at this time)
are expected to peak below flood stage. The one exception could be
the Coquille River at Coquille where the rise could peak out on the
cusp of minor flooding, hence the flood watch. East of the Cascades,
rainfall are expected to be less, especially for portions of eastern
Lake County and Modoc County.

Moderate to strong winds will continue at the coast and over the
east side where high wind warnings remain in effect. Strong KOTH-
KACV gradients of -8 to -11 mb continue to support wind gusts of 60-
70 mph at the coast with up to 80 mph at the headlands. The 700 mb
winds east of the Cascades during the warnings peak at 65-70 kt, so
gusts of 65 mph should also occur along Highway 31 near Summer Lake.
-8 to -10 mb KMFR-KRDD pressure gradient also supports advisory
level winds in the Shasta Valley. Due to more of a southwest or
westerly component to the mid-level flow. If the flow were valley-
aligned, then winds would be stronger, but that's not the case here.
Breezy conditions are expected elsewhere at times and especially at
the southern portion of Rogue Valley.

With snow levels as high as they are (between 8000-9000 feet) winter
impacts will be minimal. However as the cold front moves onshore
Wednesday, snow levels will drop to around 5000 feet, but
precipitation will be diminishing, then ending by that time.

Wednesday, precipitation will be winding down pretty quickly during
the morning with mainly dry conditions in the afternoon. It will
still be windy in the morning, but they too should be diminishing
during the course of the day. Wednesday night will be dry and the
atmosphere will stabilize as upper ridging builds over the area. Due
to ample moisture, patchy to areas of fog is likely for most if not
all interior valley locations Wednesday night into Thursday morning.
As a result max temperatures on Thursday were adjusted down due to
the clouds and fog lingering through at least the morning hours,
thus slowing down the amount of warming. -Petrucelli

Long-term...Friday through Tuesday...This period can be summed up as
relatively uneventful compared to the very active pattern we're
currently experiencing. A couple weak fronts will pass through the
forecast area, late Friday and Sunday. Otherwise, an upper level
ridge of high pressure will dominate the weather, and precipitation
through Tuesday will be minimal to nil.

Friday's front will push through with generally light precipitation
and snow levels around 7000 feet. High pressure will settle in on
Saturday, and we expect some morning fog and freezing fog in a
stable air mass. Another front will move through Sunday morning but
operational models and ensemble members are not enthusiastic with
precipitation with this front, so expect more fog and freezing fog
Sunday morning. Broad, dry north to northeasterly flow is expected
late Sunday into Monday, and it's likely that fog coverage and
intensity will decrease some Monday morning if this type of
offshore/northeast wind pattern sets up. Ensembles and the European
operational model suggest deep westerly flow could resume on
Tuesday, and a more substantial front could arrive. After looking at
the latest clustering of all 100 global model ensemble, the most
likely solution however, is continued dry conditions.

Looking further out in time, towards the clustering of ensemble
solutions for Day 8-10 (late next week), most ensemble members point
to cooler conditions/lowering snow levels and precipitation chances
returning.

&&

.AVIATION...For the 12/18Z TAFs...A strong front is pushing into the
region and is bringing significant turbulence, areas of low level
wind shear (LLWS), and a wide variety of conditions ranging from
MVFR to IFR ceilings. The worst conditions through tonight will be
at and near the coast where strong south winds will bring
turbulence, while pockets of lighter winds near terrain will create
LLWS conditions, and IFR/MVFR conditions with mountain obscuration
are expected. MVFR cigs/vis will gradually spread inland across
areas from the Cascades west this morning, then conditions will
become MVFR cigs/vis with areas of IFR this evening and tonight.
East of the Cascades, expect mainly VFR this morning with some
higher terrain obscured, then areas of MVFR cigs this afternoon
through tonight. LLWS conditions will affect many terminals through
early afternoon, then affect areas closer to the coast later today,
though some inland areas like KMFR could experience LLWS through
this evening. -CC/Keene

&&

.MARINE...Updated 240 PM PST Tuesday, 12 Jan 2021...
A very strong front will continue to bring gale force winds and very
steep seas this afternoon through tonight. Winds are likely to surge
to storm force again from Cape Blanco northward between 3NM and 25NM
of the coast between about 7 PM and 1 AM Pacific Standard Time.
Winds are then expected to lower from northwest to southeast quite
rapidly early Wednesday morning. Very high and very steep combined
seas will continue today and tonight due to a mix of wind seas and
long period west swell. Seas will then subside during the day
Wednesday with steep, west swell dominated seas expected from late
morning onward.

High pressure will bring a break in the action Wednesday afternoon
through Thursday night. A weaker frontal system is then expected to
move through Thursday night into Friday before high pressure and
northerly winds build in for a few days. Another long period heavy
west swell event is likely Friday night, peaking around 18 feet at
17 seconds. ~BTL/Keene

&&

.BEACH HAZARDS...Updated 240 PM PST Tuesday, 12 Jan 2021...
Long period swell will continue tonight into Wednesday morning
resulting in hazardous surf conditions with breaking wave heights of
27 to 33 ft. A second high tide around midnight tonight is expected
to be about 2 feet lower than the high tide that occured earlier
today. Thus, while there will be some risk of additional flooding
due to the combined effects of surf, rain, and the high tide around
midnight, the risk for flooding will gradually lower late tonight
into Wednesday as tides lower and dangerous surf conditions improve.

Use extreme caution along and near the beaches and stay away from
the ocean. Jetties, rocks, logs and bar entrances are not safe
places to be during this period of significant waves. The Pacific
Ocean is both cold and powerful. These large waves can easily sweep
people and large objects into the water. NEVER turn your back on the
ocean! ~BTL

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...High Wind Warning until 10 AM PST Wednesday for ORZ021-022.
     Flood Watch through Wednesday morning for ORZ021-022-024.
     High Surf Warning until 6 AM PST Wednesday for ORZ021-022.
     High Wind Warning until 4 PM PST Wednesday for ORZ030-031.

CA...Wind Advisory until 10 AM PST Wednesday for CAZ081.

Pacific Coastal Waters...Flood Watch through Wednesday morning for PZZ350-356.
     Small Craft Advisory from 4 AM Wednesday to 8 AM PST Thursday
     for PZZ350-356-370-376.
     Gale Warning until 4 AM PST Wednesday for PZZ350-356-370-376.
     Storm Warning until 1 AM PST Wednesday for PZZ350-370.
     Hazardous Seas Warning from 4 AM to 10 AM PST Wednesday for
     PZZ370-376.

In the hours before

Local storm report, Jan 12, 12:28 PM PST, 3 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEDFORD OR
1228 PM PST TUE JAN 12 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0830 AM     HEAVY RAIN       5 NNE SELMA             42.35N 123.57W
01/12/2021  M1.10 INCH       JOSEPHINE          OR   TRAINED SPOTTER

            HAYES HILL. MOST FELL OVERNIGHT INTO THIS
            MORNING.

1200 PM     HEAVY RAIN       PORT ORFORD             42.75N 124.49W
01/12/2021  M1.78 INCH       CURRY              OR   TRAINED SPOTTER

            NOON TO NOON PST.

&&
Local storm report, Jan 12, 12:57 PM PST, 2 hours 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1257 PM PST TUE JAN 12 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1245 PM     HEAVY RAIN       2 SSW OBRIEN            42.05N 123.71W
01/12/2021  M2.00 INCH       JOSEPHINE          OR   TRAINED SPOTTER

            2 INCHES SINCE MIDNIGHT.

&&

BTL
Local storm report, Jan 12, 2:52 PM PST, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
252 PM PST TUE JAN 12 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1230 PM     FLOOD            HIGHWAY 101 AND 42 (NEA 43.12N 124.41W
01/12/2021                   COOS               OR   EMERGENCY MNGR

            REPORTS OF HIGH WATER ON ROADWAYS AFFECTING
            PORTIONS OF HIGHWAY 42 (MP 1 AND 2) AND
            HIGHWAY 101 (MP 237 AND 240).

&&
Local storm report, Jan 12, 3:22 PM PST, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
322 PM PST TUE JAN 12 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     HEAVY RAIN       2 WSW OBRIEN            42.06N 123.73W
01/12/2021  M3.00 INCH       JOSEPHINE          OR   TRAINED SPOTTER

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 11, 4:30 PM PSTHigh Surf WarningMFRCoos, Curry, Douglas41 hr
Jan 12, 2:09 AM PSTStorm WarningMFR23 hr
Jan 12, 11:01 AM PSTRiver Flood WatchMFRCoos, Curry, Douglas19 hr
Jan 12, 12:55 PM PSTAreal Flood AdvisoryMFRCoos, Curry, Douglas, Josephine20 hr
Jan 12, 3:35 PM PSTHazardous Seas WarningMFR17 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.