Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 208, NWS San Francisco Bay Area, CA

September 11, 2021

NWS San Francisco Bay Area, CA issued this small craft advisory at Sep 11, 2021, 2:30 AM PDT. It took effect at Sep 12, 2021, 3:00 PM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
Sep 11, 2021, 2:30 AM PDT (09:30 UTC)
In effect from
Sep 12, 2021, 3:00 PM PDT
Expired
Sep 12, 2021, 2:55 AM PDT
In force
Issued by
NWS San Francisco Bay Area, CA

The text

As transmitted.

132 
WHUS76 KMTR 110930
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
230 AM PDT Sat Sep 11 2021

PZZ535-111730-
/O.CON.KMTR.SC.Y.0207.210911T2100Z-210912T0400Z/
/O.NEW.KMTR.SC.Y.0208.210912T2200Z-210913T0400Z/
Monterey Bay-
230 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 9 PM PDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM TO 9 PM PDT SUNDAY...

* WHAT...For the first Small Craft Advisory, west winds 10 to 20 
  kt with gusts up to 30 kt expected. For the second Small Craft 
  Advisory, west winds 10 to 20 kt with gusts up to 30 kt.

* WHERE...Monterey Bay.

* WHEN...For the Small Craft Advisory, from 2 PM this afternoon 
  to 9 PM PDT this evening. For the Small Craft Advisory, from 3 
  PM to 9 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ570-111730-
/O.EXT.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Waters from Point Arena to Point Reyes 10-60 NM-
230 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 20 to 25 kt with gusts up to 30 kt.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ540-111730-
/O.EXT.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
230 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Arena to Point Reyes 
  California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ565-111730-
/O.EXT.KMTR.SC.Y.0206.000000T0000Z-210912T2200Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
230 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt.

* WHERE...Coastal Waters from Point Pinos to Point Piedras 
  Blancas California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ571-111600-
/O.CON.KMTR.SC.Y.0205.000000T0000Z-210911T1600Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
230 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS
MORNING...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt.

* WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM.

* WHEN...Until 9 AM PDT Saturday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ576-111600-
/O.CON.KMTR.SC.Y.0206.000000T0000Z-210911T1600Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
230 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS
MORNING...

* WHAT...Northwest winds 20 to 25 kt with gusts up to 30 kt.

* WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 
  60 NM.

* WHEN...Until 9 AM PDT Saturday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
6 follow-up statements
913 
WHUS76 KMTR 111540
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
840 AM PDT Sat Sep 11 2021

PZZ571-111645-
/O.EXP.KMTR.SC.Y.0205.000000T0000Z-210911T1600Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
840 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING...


$$

PZZ576-111645-
/O.EXP.KMTR.SC.Y.0206.000000T0000Z-210911T1600Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
840 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING...



$$

PZZ535-112345-
/O.CON.KMTR.SC.Y.0207.210911T2100Z-210912T0400Z/
/O.CON.KMTR.SC.Y.0208.210912T2200Z-210913T0400Z/
Monterey Bay-
840 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 9 PM PDT THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
SUNDAY...

* WHAT...For the first Small Craft Advisory, west winds 10 to 20
  kt with gusts up to 30 kt expected. For the second Small Craft
  Advisory, northwest winds 10 to 20kt with gusts up to 30 kt 
  expected.

* WHERE...Monterey Bay.

* WHEN...For the Small Craft Advisory, from 2 PM this afternoon 
  to 9 PM PDT this evening. For the Small Craft Advisory, from 3 
  PM to 9 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ570-112345-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Waters from Point Arena to Point Reyes 10-60 NM-
840 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ540-112345-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
840 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Arena to Point Reyes 
  California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ565-112345-
/O.CON.KMTR.SC.Y.0206.000000T0000Z-210912T2200Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
840 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Pinos to Point Piedras 
  Blancas California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
344 
WHUS76 KMTR 111548
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
848 AM PDT Sat Sep 11 2021

PZZ535-120000-
/O.CON.KMTR.SC.Y.0207.210911T2100Z-210912T0400Z/
/O.CON.KMTR.SC.Y.0208.210912T2200Z-210913T0400Z/
Monterey Bay-
848 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 9 PM PDT THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
SUNDAY...

* WHAT...For the first Small Craft Advisory, west winds 10 to 20
  kt with gusts up to 30 kt expected. For the second Small Craft
  Advisory, northwest winds 10 to 20 kt with gusts up to 30 kt 
  expected.

* WHERE...Monterey Bay.

* WHEN...For the Small Craft Advisory, from 2 PM this afternoon 
  to 9 PM PDT this evening. For the Small Craft Advisory, from 3 
  PM to 9 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ570-120000-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Waters from Point Arena to Point Reyes 10-60 NM-
848 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ540-120000-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
848 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Arena to Point Reyes 
  California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ565-120000-
/O.CON.KMTR.SC.Y.0206.000000T0000Z-210912T2200Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
848 AM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Pinos to Point Piedras 
  Blancas California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
978 
WHUS76 KMTR 112131
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
231 PM PDT Sat Sep 11 2021

PZZ535-120430-
/O.CON.KMTR.SC.Y.0207.000000T0000Z-210912T0400Z/
/O.CON.KMTR.SC.Y.0208.210912T2200Z-210913T0400Z/
Monterey Bay-
231 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
SUNDAY...

* WHAT...For the first Small Craft Advisory, west winds 10 to 20
  kt with gusts up to 30 kt. For the second Small Craft
  Advisory,norhwest winds 15 to 25 kt with gusts up too kt.

* WHERE...Monterey Bay.

* WHEN...For the Small Craft Advisory, until 9 PM PDT this 
  evening. For the Small Craft Advisory, from 3 PM to 9 PM PDT 
  Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ570-120430-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Waters from Point Arena to Point Reyes 10-60 NM-
231 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ540-120430-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
231 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Arena to Point Reyes 
  California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ565-120430-
/O.CON.KMTR.SC.Y.0206.000000T0000Z-210912T2200Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
231 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Pinos to Point Piedras 
  Blancas California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
406 
WHUS76 KMTR 120323
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
823 PM PDT Sat Sep 11 2021

PZZ535-121230-
/O.CON.KMTR.SC.Y.0207.000000T0000Z-210912T0400Z/
/O.CON.KMTR.SC.Y.0208.210912T2200Z-210913T0400Z/
Monterey Bay-
823 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
SUNDAY...

* WHAT...For the first Small Craft Advisory, west winds 10 to 20
  kt with gusts up to 25 kt. For the second Small Craft Advisory,
  norhwest winds 15 to 25 kt with gusts up to 30kt.

* WHERE...Monterey Bay.

* WHEN...For the Small Craft Advisory, until 9 PM PDT this 
  evening. For the Small Craft Advisory, from 3 PM to 9 PM PDT 
  Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ570-121230-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Waters from Point Arena to Point Reyes 10-60 NM-
823 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and 
  seas 8 to 10 feet at 15 seconds.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ540-121230-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
823 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Arena to Point Reyes 
  California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ565-121230-
/O.CON.KMTR.SC.Y.0206.000000T0000Z-210912T2200Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
823 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Pinos to Point Piedras 
  Blancas California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
430 
WHUS76 KMTR 120339
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
839 PM PDT Sat Sep 11 2021

PZZ535-121230-
/O.EXP.KMTR.SC.Y.0207.000000T0000Z-210912T0400Z/
/O.CON.KMTR.SC.Y.0208.210912T2200Z-210913T0400Z/
Monterey Bay-
839 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
SUNDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 PM PDT THIS EVENING...

* WHAT... Northwest winds 15 to 25 kt with gusts up to 30kt.

* WHERE...Monterey Bay.

* WHEN...From 3 PM to 9 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ570-121230-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Waters from Point Arena to Point Reyes 10-60 NM-
839 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and 
  seas 8 to 10 feet at 15 seconds.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ540-121230-
/O.CON.KMTR.SC.Y.0204.000000T0000Z-210912T2200Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
839 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Arena to Point Reyes 
  California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ565-121230-
/O.CON.KMTR.SC.Y.0206.000000T0000Z-210912T2200Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
839 PM PDT Sat Sep 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Pinos to Point Piedras 
  Blancas California out to 10 nm.

* WHEN...Until 3 PM PDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
485 
WHUS76 KMTR 120955
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
255 AM PDT Sun Sep 12 2021

PZZ535-121100-
/O.CAN.KMTR.SC.Y.0208.210912T2200Z-210913T0400Z/
Monterey Bay-
255 AM PDT Sun Sep 12 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

PZZ571-121800-
/O.EXB.KMTR.SC.Y.0206.000000T0000Z-210914T0400Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
255 AM PDT Sun Sep 12 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PDT MONDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM.

* WHEN...Until 9 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ575-121800-
/O.EXB.KMTR.SC.Y.0206.000000T0000Z-210914T0400Z/
Waters from Pigeon Point to Point Pinos 10-60 NM-
255 AM PDT Sun Sep 12 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PDT MONDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM.

* WHEN...Until 9 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ576-121800-
/O.EXB.KMTR.SC.Y.0206.000000T0000Z-210914T0400Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
255 AM PDT Sun Sep 12 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PDT MONDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 
  60 NM.

* WHEN...Until 9 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ545-121800-
/O.EXB.KMTR.SC.Y.0206.210912T2000Z-210914T0400Z/
Coastal Waters from Point Reyes to Pigeon Point California out to
10 nm-
255 AM PDT Sun Sep 12 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM PDT MONDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Reyes to Pigeon Point 
  California out to 10 nm.

* WHEN...From 1 PM this afternoon to 9 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Small craft should use extreme caution when navigating in or near
harbor entrances.

&&

$$

PZZ530-121800-
/O.EXB.KMTR.SC.Y.0206.210912T2000Z-210913T0400Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
255 AM PDT Sun Sep 12 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING...

* WHAT...Southwest winds 15 to 25 kt.

* WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San 
  Francisco Bay north of the Bay Bridge.

* WHEN...From 1 PM this afternoon to 9 PM PDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ570-121800-
/O.EXT.KMTR.SC.Y.0204.000000T0000Z-210914T0400Z/
Waters from Point Arena to Point Reyes 10-60 NM-
255 AM PDT Sun Sep 12 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT MONDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and 
  seas 8 to 10 feet at 15 seconds.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 9 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ540-121800-
/O.EXT.KMTR.SC.Y.0204.000000T0000Z-210914T0400Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
255 AM PDT Sun Sep 12 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT MONDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt.

* WHERE...Coastal Waters from Point Arena to Point Reyes 
  California out to 10 nm.

* WHEN...Until 9 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ565-121800-
/O.EXT.KMTR.SC.Y.0206.000000T0000Z-210914T0400Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
255 AM PDT Sun Sep 12 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT MONDAY...

* WHAT...Northwest winds 15 to 25 kt.

* WHERE...Coastal Waters from Point Pinos to Point Piedras 
  Blancas California out to 10 nm.

* WHEN...Until 9 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco

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 San Francisco Bay Area, CA wrote its last area forecast discussion before this small craft advisory went out at Sep 11, 1:20 AM PDT, 1 hour 10 minutes earlier.

Area forecast discussion, Sep 11, 1:20 AM PDT, 1 hour 10 minutes before
Area Forecast Discussion
National Weather Service San Francisco Bay Area
120 AM PDT Sat Sep 11 2021

.SYNOPSIS...Fairly clear tonight with low clouds along the coast
spreading into the valleys overnight. Weather this weekend will be
dry with a warming trend as high pressure over the desert
Southwest extends westward into California. Hottest temperatures
this weekend will be on Sunday as inland 90s return. Dry and
seasonably warm weather persists into next week as high pressure
continues to dominate our weather pattern.

&&

.DISCUSSION...as of 09:40 PM PDT Friday...High temperatures today
ranged in the 60s and 70s closer to the coast while inland temps
peaked in the 80s with our typical hotspots (Pinnacles NP and
Parkfield) getting into the low to mid 90s. Monitoring satellite
imagery and lightning detection this evening shows that
thunderstorm activity has now moved out of California into Nevada.
Meanwhile, we've got patches of low clouds developing along some
portions of the SF Peninsula and Central CA coastline. The marine
layer is around 1500 ft deep and we expect that low clouds will
move inland later tonight and then scatter out tomorrow morning by
9-10 am.

High pressure over the desert Southwest will strengthen with its
ridge extending westward this weekend. That will cause a gradual
warming trend into early next week. 850 mb temperatures on
Saturday will range around 19-21 degrees C. By Sunday, they'll
bump up ranging 21-23 degrees C and then the airmass will continue
in that range early next week. That will translate to daytime
highs increasing by a couple of degrees each day into early next
week. Not looking at any widespread triple digit heat, in fact
peak temperatures will likely just be in the 90s with hotter spots
farthest inland and in higher terrain getting into the upper 90s.

No changes to the current forecast package this evening and the
long range forecast continues to look like a fairly quiet pattern.

&&

.PREV DISCUSSION...as of 2:29 PM PDT Friday...The upper trough that
brought active weather the last 24 hours is now well to our east
with sunny skies returning to inland areas this afternoon. 24 hour
trends show temps running about 3-8 degrees cooler than Thursday
afternoon with 2 pm temps from the upper 60s coast, 70s bay/inland
and some 80s interior valleys. Along the coast the marine layer
has remained in place around 1000 feet but with some cooling aloft
the inversion strength has weakened. Onshore gradients around 2
mb SFO to Sac will keep breezy west winds in place this evening
with low clouds spreading into the bays and valleys overnight
through sunrise Saturday.

An ideal Bay Area weekend looks to be in store. Even though its
September it looks like we'll wake up to morning low clouds but
peeling back to the coast by mid-morning. Pleasant afternoon temps
in the 70s and 80s with full sunshine away from the beaches as
high pressure begins to build.

By Sunday the ridge over SoCal will begin to nudge northward and
bring a noted warming trend to the interior valleys with 90s
becoming more widespread once again. As this occurs the ridge will
compress the marine layer once again with a warming and drying
trend for the hills. Onshore gradients will remain in place
keeping a steady marine layer and associated influence along the
coast through Sunday.

Longer range trends for next week keep a fairly quiet weather
pattern in place. Some hints of the ridge weakening by early next
week with some light north winds developing but nothing strong
expected, just some continued drying of the airmass. As we get
into September and the days shorten we can start to get some big
daily temperature spreads as highs warm into the 90s but cool into
the 40s at night with dry airmass in place. Latest Euro shows some
increased chance of storms impacting the PacNW beyond mid month
with some of the first cold air intrusions into the Northern
Rockies that can eventually translate into our fall offshore wind
patterns. Will be keeping an eye for that as we transition out of
early September sub-tropical intrusions to late Sept offshore
winds.

&&

.AVIATION...as of 1:20 AM PDT Saturday...For the 06z TAFs. It's
VFR except VLIFR-IFR in fog and stratus along the immediate coast
this morning. KOAR Airport recently reported light drizzle.
Additional patchy light coastal drizzle is possible this morning
and late tonight and Sunday morning per recent WRF-ARW output. Mid
to upper level ridging amplifies over the cwa during the 06z taf
cycle possibly gently compressing the marine layer. Otherwise VFR
during the day with good atmospheric mixing. Coastal fog and stratus
/VLIFR-IFR/ redeveloping tonight and Sunday morning per HREF output.

Vicinity of KSFO...VFR except IFR ceiling forecast 12z-16z this
morning. Model output shows KSFO along the edge of the stratus
and fog thus will be a close call for cig/no cig through morning.

KSFO Bridge Approach...Similar to KSFO.

Monterey Bay...VLIFR-IFR in fog, stratus and possibly patchy light
coastal drizzle this morning. Conditions improving to MVFR-VFR by
late morning and afternoon. VLIFR-IFR redeveloping tonight and
Sunday morning due to fog, stratus and possibly patchy light coastal
drizzle.

&&

.MARINE...as of 08:45 PM PDT Friday...A moderate period northwest
swell arrives on Sunday with a  lighter, longer period southerly
swell remaining mixed in along  with it. Before then, the sea
state will be wind driven with winds out of the northwest. These
winds will gradually diminish on  Saturday with strongest gusts
prevailing over the northern outer  waters and along the Big Sur
Coast, south of Point Sur.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
     .Tngt...SCA...Pt Arena to Pt Reyes 0-10 nm
             SCA...Pt Arena to Pigeon Pt 10-60 nm
             SCA...Pt Pinos to Pt Piedras Blancas 0-10 nm

&&

PUBLIC FORECAST: Bingaman
AVIATION: Canepa
MARINE: DK

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Nearby

Small Craft Advisories in California, 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.