Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 191, NWS San Francisco Bay Area, CA

August 19, 2021

NWS San Francisco Bay Area, CA issued this small craft advisory at Aug 19, 2021, 2:37 AM PDT. It took effect at Aug 19, 2021, 3:00 PM PDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Aug 19, 2021, 2:37 AM PDT (09:37 UTC)
In effect from
Aug 19, 2021, 3:00 PM PDT
Expired
Aug 19, 2021, 8:53 PM PDT
In force
6 hr
Issued by
NWS San Francisco Bay Area, CA

The text

As transmitted.

512 
WHUS76 KMTR 190937
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
237 AM PDT Thu Aug 19 2021

PZZ530-191745-
/O.NEW.KMTR.SC.Y.0191.210819T2200Z-210820T0400Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
237 AM PDT Thu Aug 19 2021

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

* WHAT...Southwest winds 10 to 15 kt with gusts up to 30 kt 
  expected.

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

* WHEN...From 3 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.

&&

$$

PZZ570-191745-
/O.EXT.KMTR.SC.Y.0181.000000T0000Z-210820T1000Z/
Waters from Point Arena to Point Reyes 10-60 NM-
237 AM PDT Thu Aug 19 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 
  9 to 14 feet at 20 seconds.

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

* WHEN...Until 3 AM PDT Friday.

* 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
543 
WHUS76 KMTR 191549
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
849 AM PDT Thu Aug 19 2021

PZZ570-200000-
/O.CON.KMTR.SC.Y.0181.000000T0000Z-210820T1000Z/
Waters from Point Arena to Point Reyes 10-60 NM-
849 AM PDT Thu Aug 19 2021

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

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 
  9 to 14 feet at 20 seconds.

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

* WHEN...Until 3 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ530-200000-
/O.CON.KMTR.SC.Y.0191.210819T2200Z-210820T0400Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
849 AM PDT Thu Aug 19 2021

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

* WHAT...Southwest winds 10 to 15 kt with gusts up to 30 kt 
  expected.

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

* WHEN...From 3 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.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
271 
WHUS76 KMTR 192058
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
158 PM PDT Thu Aug 19 2021

PZZ530-200500-
/O.CON.KMTR.SC.Y.0191.210819T2200Z-210820T0400Z/
/O.NEW.KMTR.SC.Y.0192.210820T2200Z-210821T0400Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
158 PM PDT Thu Aug 19 2021

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

* WHAT...For the first Small Craft Advisory, southwest winds 5 
  to 15 kt with gusts up to 30 kt expected. For the second Small 
  Craft Advisory, southwest 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...For the Small Craft Advisory, until 9 PM PDT this 
  evening. For the Small Craft Advisory, from 3 PM to 9 PM PDT 
  Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ540-200400-
/O.EXA.KMTR.SC.Y.0191.210819T2200Z-210820T0400Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
158 PM PDT Thu Aug 19 2021

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

* WHAT...Southwest winds 10 to 15 kt with gusts up to 30 kt 
  expected.

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

* WHEN...From 3 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.

&&

$$

PZZ570-200500-
/O.EXT.KMTR.SC.Y.0181.000000T0000Z-210821T0400Z/
Waters from Point Arena to Point Reyes 10-60 NM-
158 PM PDT Thu Aug 19 2021

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

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 
  9 to 14 feet at 20 seconds.

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

* WHEN...Until 9 PM PDT Friday.

* 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
995 
WHUS76 KMTR 200353
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
853 PM PDT Thu Aug 19 2021

PZZ530-201200-
/O.CAN.KMTR.SC.Y.0191.000000T0000Z-210820T0400Z/
/O.CON.KMTR.SC.Y.0192.210820T2200Z-210821T0400Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
853 PM PDT Thu Aug 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT
FRIDAY...
...SMALL CRAFT ADVISORY FOR THIS EVENING IS CANCELLED...

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

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ540-200500-
/O.CAN.KMTR.SC.Y.0191.000000T0000Z-210820T0400Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
853 PM PDT Thu Aug 19 2021

...SMALL CRAFT ADVISORY IS CANCELLED...


$$

PZZ571-201000-
/O.EXB.KMTR.SC.Y.0181.000000T0000Z-210820T1000Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
853 PM PDT Thu Aug 19 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 
  9 to 14 feet at 20 seconds.

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

* WHEN...Until 3 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ570-201200-
/O.CON.KMTR.SC.Y.0181.000000T0000Z-210821T0400Z/
Waters from Point Arena to Point Reyes 10-60 NM-
853 PM PDT Thu Aug 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT FRIDAY...

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 
  9 to 14 feet at 20 seconds.

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

* WHEN...Until 9 PM PDT Friday.

* 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

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 1:58 PM PDTSmall Craft AdvisoryMTR31 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.