Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 79, NWS San Francisco Bay Area, CA

April 24, 2021

NWS San Francisco Bay Area, CA issued this small craft advisory at Apr 24, 2021, 1:40 PM PDT. It took effect at Apr 25, 2021, 3:00 AM PDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Apr 24, 2021, 1:40 PM PDT (20:40 UTC)
In effect from
Apr 25, 2021, 3:00 AM PDT
Expired
Apr 25, 2021, 3:00 PM PDT
In force
12 hr
Issued by
NWS San Francisco Bay Area, CA

The text

As transmitted.

137 
WHUS76 KMTR 242040
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
140 PM PDT Sat Apr 24 2021

PZZ571-250600-
/O.CAN.KMTR.SC.Y.0078.210425T1000Z-210425T1600Z/
/O.NEW.KMTR.SC.Y.0079.210425T1600Z-210425T2200Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
140 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM TO 3 PM PDT SUNDAY...

* WHAT...Southwest winds 10 to 20kt with gusts to 25kt.

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

* WHEN...From 9 AM to 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.

&&

$$

PZZ540-250600-
/O.NEW.KMTR.SC.Y.0079.210425T1000Z-210425T1600Z/
/O.CAN.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
140 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TO 9 AM PDT SUNDAY...

* WHAT...Southwest winds 10 to 20kt with gusts to 25kt.

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

* WHEN...From 3 AM to 9 AM 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.

&&

$$

PZZ576-250600-
/O.EXB.KMTR.SC.Y.0078.210425T1600Z-210426T0400Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
140 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM TO 9 PM PDT SUNDAY...

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

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

* WHEN...From 9 AM 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.

&&

$$

PZZ565-250600-
/O.EXA.KMTR.SC.Y.0078.210425T2200Z-210426T0400Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
140 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM TO 9 PM PDT SUNDAY...

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

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

* 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.

&&

$$

PZZ530-250600-
/O.EXA.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
140 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM TO 3 PM PDT SUNDAY...

* WHAT...South winds 5 to 15 kt with gusts up to 25 kt expected.

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

* WHEN...From 9 AM to 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.

&&

$$

PZZ560-250600-
/O.EXT.KMTR.SC.Y.0078.210425T1600Z-210426T0400Z/
Coastal Waters from Pigeon Point to Point Pinos California out to
10 nm-
140 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM TO 9 PM PDT
SUNDAY...

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

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

* WHEN...From 9 AM 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.

&&

$$

PZZ570-250600-
/O.CON.KMTR.SC.Y.0078.210425T1000Z-210425T1600Z/
Waters from Point Arena to Point Reyes 10-60 NM-
140 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT
SUNDAY...

* WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt 
  expected.

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

* WHEN...From 3 AM to 9 AM 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.

&&

$$

PZZ575-250600-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
Waters from Pigeon Point to Point Pinos 10-60 NM-
140 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 3 PM PDT
SUNDAY...

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

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

* WHEN...From 9 AM to 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.

&&

$$

PZZ545-250600-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
Coastal Waters from Point Reyes to Pigeon Point California out to
10 nm-
140 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 3 PM PDT
SUNDAY...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt 
  expected, resulting in hazardous conditions near harbor 
  entrances.

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

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

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ535-250600-
/O.CON.KMTR.SC.Y.0078.210425T2200Z-210426T0400Z/
Monterey Bay-
140 PM PDT Sat Apr 24 2021

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

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

* 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.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
3 follow-up statements
705 
WHUS76 KMTR 250340
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
840 PM PDT Sat Apr 24 2021

PZZ570-251145-
/O.CON.KMTR.SC.Y.0078.210425T1000Z-210425T1600Z/
Waters from Point Arena to Point Reyes 10-60 NM-
840 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT
SUNDAY...

* WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt 
  expected.

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

* WHEN...From 3 AM to 9 AM 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.

&&

$$

PZZ571-251145-
/O.CON.KMTR.SC.Y.0079.210425T1600Z-210425T2200Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
840 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 3 PM PDT
SUNDAY...

* WHAT...Southwest winds 10 to 20kt with gusts to 25kt.

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

* WHEN...From 9 AM to 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.

&&

$$

PZZ575-251145-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
Waters from Pigeon Point to Point Pinos 10-60 NM-
840 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 3 PM PDT
SUNDAY...

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

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

* WHEN...From 9 AM to 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.

&&

$$

PZZ540-251145-
/O.CON.KMTR.SC.Y.0079.210425T1000Z-210425T1600Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
840 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT
SUNDAY...

* WHAT...Southwest winds 10 to 20kt with gusts to 25kt.

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

* WHEN...From 3 AM to 9 AM 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.

&&

$$

PZZ576-251145-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210426T0400Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
840 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 9 PM PDT
SUNDAY...

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

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

* WHEN...From 9 AM 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.

&&

$$

PZZ545-251145-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
Coastal Waters from Point Reyes to Pigeon Point California out to
10 nm-
840 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 3 PM PDT
SUNDAY...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt 
  expected, resulting in hazardous conditions near harbor 
  entrances.

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

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

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ560-251145-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210426T0400Z/
Coastal Waters from Pigeon Point to Point Pinos California out to
10 nm-
840 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 9 PM PDT
SUNDAY...

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

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

* WHEN...From 9 AM 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.

&&

$$

PZZ565-251145-
/O.CON.KMTR.SC.Y.0078.210425T2200Z-210426T0400Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
840 PM PDT Sat Apr 24 2021

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

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

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

* 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.

&&

$$

PZZ530-251145-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
840 PM PDT Sat Apr 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 3 PM PDT
SUNDAY...

* WHAT...South winds 5 to 15 kt with gusts up to 25 kt expected.

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

* WHEN...From 9 AM to 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.

&&

$$

PZZ535-251145-
/O.CON.KMTR.SC.Y.0078.210425T2200Z-210426T0400Z/
Monterey Bay-
840 PM PDT Sat Apr 24 2021

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

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

* 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.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
288 
WHUS76 KMTR 250948
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
248 AM PDT Sun Apr 25 2021

PZZ540-251800-
/O.CON.KMTR.SC.Y.0079.210425T1000Z-210425T1600Z/
/O.NEW.KMTR.SC.Y.0080.210426T2200Z-210427T0400Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
248 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM TO 9 PM PDT MONDAY...

* WHAT...For the first Small Craft Advisory, south winds 5 to 15 
  kt expected. For the second Small Craft Advisory, northwest 
  winds 15 to 20 kt with gusts up to 25 kt expected.

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

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

&&

$$

PZZ560-251800-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210426T0400Z/
/O.NEW.KMTR.SC.Y.0080.210426T2200Z-210427T0400Z/
Coastal Waters from Pigeon Point to Point Pinos California out to
10 nm-
248 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 9 PM PDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM TO 9 PM PDT MONDAY...

* WHAT...For the first Small Craft Advisory, south winds 5 to 15 
  kt expected. For the second Small Craft Advisory, northwest 
  winds 15 to 20 kt with gusts up to 30 kt expected.

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

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

&&

$$

PZZ565-251800-
/O.EXT.KMTR.SC.Y.0078.210425T2200Z-210426T1000Z/
/O.NEW.KMTR.SC.Y.0080.210426T2200Z-210427T0400Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
248 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 AM PDT MONDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM TO 9 PM PDT MONDAY...

* WHAT...For the first Small Craft Advisory, south winds 5 to 15 
  kt expected. For the second Small Craft Advisory, northwest 
  winds 15 to 25 kt with gusts up to 30 kt expected.

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

* WHEN...For the Small Craft Advisory, from 3 PM this afternoon 
  to 3 AM PDT Monday. For the Small Craft Advisory, from 3 PM to 
  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.

&&

$$

PZZ535-251800-
/O.CON.KMTR.SC.Y.0078.210425T2200Z-210426T0400Z/
/O.NEW.KMTR.SC.Y.0080.210426T2200Z-210427T0400Z/
Monterey Bay-
248 AM PDT Sun Apr 25 2021

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

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

* WHERE...Monterey Bay.

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

&&

$$

PZZ575-251800-
/O.EXT.KMTR.SC.Y.0078.210425T1600Z-210426T0400Z/
Waters from Pigeon Point to Point Pinos 10-60 NM-
248 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO
9 PM PDT THIS EVENING...

* WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt 
  expected.

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

* WHEN...From 9 AM this morning 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.

&&

$$

PZZ576-251800-
/O.EXT.KMTR.SC.Y.0078.210425T1600Z-210426T1000Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
248 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO
3 AM PDT MONDAY...

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

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

* WHEN...From 9 AM this morning to 3 AM 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.

&&

$$

PZZ570-251600-
/O.CON.KMTR.SC.Y.0078.210425T1000Z-210425T1600Z/
Waters from Point Arena to Point Reyes 10-60 NM-
248 AM PDT Sun Apr 25 2021

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

* WHAT...Southwest winds 10 to 15 kt expected.

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

* WHEN...Until 9 AM PDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ571-251800-
/O.CON.KMTR.SC.Y.0079.210425T1600Z-210425T2200Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
248 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 3 PM PDT THIS AFTERNOON...

* WHAT...Southwest winds 10 to 20kt with gusts to 25kt.

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

* WHEN...From 9 AM this morning to 3 PM PDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ545-251800-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
Coastal Waters from Point Reyes to Pigeon Point California out to
10 nm-
248 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 3 PM PDT THIS AFTERNOON...

* WHAT...South winds 10 to 15 kt expected, resulting in 
  hazardous conditions near harbor entrances.

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

* WHEN...From 9 AM this morning to 3 PM PDT this afternoon.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ530-251800-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
248 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 3 PM PDT THIS AFTERNOON...

* WHAT...South winds 5 to 15 kt with gusts up to 25 kt expected.

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

* WHEN...From 9 AM this morning to 3 PM PDT this afternoon.

* 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
432 
WHUS76 KMTR 251545
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
845 AM PDT Sun Apr 25 2021

PZZ540-252345-
/O.EXP.KMTR.SC.Y.0079.000000T0000Z-210425T1600Z/
/O.CON.KMTR.SC.Y.0080.210426T2200Z-210427T0400Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
845 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
MONDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt 
  expected.

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

* WHEN...From 3 PM to 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.

&&

$$

PZZ570-251645-
/O.EXP.KMTR.SC.Y.0078.000000T0000Z-210425T1600Z/
Waters from Point Arena to Point Reyes 10-60 NM-
845 AM PDT Sun Apr 25 2021

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

WINDS AND WAVES HAVE FALLEN BELOW SMALL CRAFT CRITERIA.

$$

PZZ560-252345-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210426T0400Z/
/O.CON.KMTR.SC.Y.0080.210426T2200Z-210427T0400Z/
Coastal Waters from Pigeon Point to Point Pinos California out to
10 nm-
845 AM PDT Sun Apr 25 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
MONDAY...

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

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

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

&&

$$

PZZ565-252345-
/O.CON.KMTR.SC.Y.0078.210425T2200Z-210426T1000Z/
/O.CON.KMTR.SC.Y.0080.210426T2200Z-210427T0400Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
845 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM PDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
MONDAY...

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

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

* WHEN...For the Small Craft Advisory, from 3 PM this afternoon 
  to 3 AM PDT Monday. For the Small Craft Advisory, from 3 PM to 
  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.

&&

$$

PZZ535-252345-
/O.CON.KMTR.SC.Y.0078.210425T2200Z-210426T0400Z/
/O.CON.KMTR.SC.Y.0080.210426T2200Z-210427T0400Z/
Monterey Bay-
845 AM PDT Sun Apr 25 2021

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

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

* WHERE...Monterey Bay.

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

&&

$$

PZZ571-252200-
/O.CON.KMTR.SC.Y.0079.210425T1600Z-210425T2200Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
845 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

* WHAT...Southwest winds 10 to 20 kt with gusts to 25kt.

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

* WHEN...Until 3 PM PDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ575-252345-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210426T0400Z/
Waters from Pigeon Point to Point Pinos 10-60 NM-
845 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

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

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

* WHEN...Until 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.

&&

$$

PZZ576-252345-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210426T1000Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
845 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT MONDAY...

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

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ545-252200-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
Coastal Waters from Point Reyes to Pigeon Point California out to
10 nm-
845 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

* WHAT...South winds 10 to 20 kt with gusts to 25 kt expected, 
  resulting in hazardous conditions near harbor entrances.

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

* WHEN...Until 3 PM PDT this afternoon.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ530-252200-
/O.CON.KMTR.SC.Y.0078.210425T1600Z-210425T2200Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
845 AM PDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

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

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

* WHEN...Until 3 PM PDT this afternoon.

* 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 Apr 24, 1:40 PM PDT, 0 minutes earlier.

Area forecast discussion, Apr 24, 1:40 PM PDT, 0 minutes before
Area Forecast Discussion
National Weather Service San Francisco Bay Area
140 PM PDT Sat Apr 24 2021

.SYNOPSIS...Below normal temperatures will continue the remainder
of the weekend as a cold front is still expected to move through
late tonight and Sunday. Widespread light to moderate showers are
forecast for the entire region with lingering showers possible
into Sunday evening. Slight chance of thunderstorms in the wake of
the front Sunday afternoon for parts of the North and East Bay. A
warming and drying trend is then on tap from Monday through most
of the coming week.

&&

.DISCUSSION...as of 01:40 PM PDT Saturday...Early morning low
clouds have lifted for most locations while mid and high level
clouds stream over the region ahead of a weak boundary. Still
picking up a few weak echos on radar over the far northern portion
of North Bay, but not much in the way of accumulations. This may
continue into the evening ahead of the next system. Temperatures
remain seasonably cool in the upper 50s to low 60s. Afternoon
highs should peak in the upper 50s to low 60s along the coast and
mid to upper 60s inland.

The main rain event it is still expected overnight tonight
through tomorrow afternoon as a cold front moves through the
region. High res models have initial showers arriving late tonight
into the early morning (~3-5 AM) before becoming more widespread
a few hours later. The bulk of the precipitation is expected
tomorrow morning into the early afternoon before showers become
more scattered. Some minor changes in rainfall totals since last
night, but overall still expect about 0.10"-0.25" for most valley
locations and 0.25"-0.5+" for the hills. In the wake of the
frontal passage models continue to indicate the potential for
instability over the North and East Bay. This may generate some
thunderstorms over the area with small hail possible. Snow levels
will also quickly drop into tomorrow down to about 3500-4500 ft.
Therefore, some snow will be possible over the taller peaks.
Additionally, locally breezy winds may accompany the frontal
passage with gusts of about 25-30 mph. The front will exit the
region tomorrow night as the parent upper low moves eastward into
the Great Basin.

Continued influence from this upper low will keep temperatures
seasonably cool on Monday, though a few degrees warmer than
Sunday. More substantial warming is then expected Tuesday through
the rest of the week as an upper ridge builds behind the exiting
trough over the eastern Pacific. The ridge will build into
California for much of the rest of the week generating above
normal temperatures by Wednesday (~5-10 deg). Many inland
locations could reach the low to mid 80s late this week with
isolated areas in the upper 80s as 850 mb temperatures rise to
about 15-17 deg C. At the moment, warming looks to end Saturday as
an upper low moves into British Columbia with a trough extending
down the West Coast.

&&

.AVIATION...As of 11:10 AM PDT Saturday.....For the 18Z TAFs. A
pair of frontal boundaries will move across the terminals over the
next 24 hours. The first of these is a dry weaker boundary today
that is currently passing through the area and bringing MVFR cigs
and light southwest winds. Some mid to late afternoon clearing and
veering winds are expected in the wake of this weaker boundary.
The next wetter cold frontal boundary arrives late Saturday night
into sunrise Sunday morning, ie bringing rain, lowering MVFR
cigs, by around 11-13Z SUN then persist through the morning.
Expect -RA/RA with visbys of 4-6SM for terminals. Brief IFR cigs
are possible in the North Bay valleys and/or Central Coast with
the heaviest rain. Winds will become S/SSE ahead of this second
stronger boundary overnight, then veer towards the W in the wake
of the front around 21-23Z SUN depending on location. Brief,
locally gusty winds with the front of 20-30kt are possible.

Vicinity of KSFO...For today, initial boundary will bring lower
cigs this afternoon with breezy west winds and some evening
clearing. CIGs predominately VFR though some borderline MVFR BKN
cigs are possible during the afternoon weaker boundary passage.
For late tonight into tomorrow morning, wetter boundary arrives
and 5-6SM visbys with -RA/RA posbl from 12-22Z SUN. Increasing S/SE
winds will become gusty near the frontal boundary passage, then
turn sharply west by around 22-23Z SUN.

SFO Bridge Approach...Similar to KSFO.

Monterey Bay Terminals...For this morning, light to locally breezy
NW winds and FEW-SCT cigs at 2200-3000 feet ahead of an
approaching dry frontal boundary. This dry boundary arrives around
02Z SUN and will bring lowering MVFR 1500-2000 ft BKN-OVC cigs
overnight. A second wetter boundary will arrive by around sunrise,
12-14Z SUN with this OVC020 layer in place and bring 4-6SM -RA/RA
through the morning.

&&

.MARINE...as of 10:59 AM PDT Saturday...A weak boundary will move
across the waters today with light  variable winds, generally
southwest becoming northwest through the  day. Locally breezy
conditions will exist along the coast and  through coastal gaps. A
stronger cold frontal boundary will move  across the waters late
tonight into Sunday morning. Winds will back  towards the south
again tonight and increase, becoming locally gusty  along the
boundary. Winds will then veer northwest in the wake of  the front
through the day on Sunday. The first significant southerly  swell
of the season has arrived and will move through the waters  over
the coming days. A shorter period northwest swell and wind  waves
will also be present across the waters.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
     .Tngt...SCA...Pt Arena to Pigeon Pt 10-60 nm from 3 AM

&&

PUBLIC FORECAST: AS
AVIATION: DRP
MARINE: DRP

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The office that day

Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 24, 2:43 AM PDTSmall Craft AdvisoryMTR37 hr

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.