Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 40, NWS Eureka, CA

March 30, 2021

NWS Eureka, CA issued this small craft advisory at Mar 30, 2021, 9:01 PM PDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Mar 30, 2021, 9:01 PM PDT (04:01 UTC)
Expired
Mar 31, 2021, 11:21 AM PDT
In force
14 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

854 
WHUS76 KEKA 310401
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
901 PM PDT Tue Mar 30 2021

PZZ450-311215-
/O.CAN.KEKA.SE.W.0023.000000T0000Z-210331T0700Z/
/O.NEW.KEKA.SC.Y.0040.210331T0401Z-210331T1300Z/
Pt St George to Cape Mendocino out 10 nm-
901 PM PDT Tue Mar 30 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM PDT WEDNESDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 
  8 to 11 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...Until 6 AM PDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-311215-
/O.EXP.KEKA.GL.W.0020.000000T0000Z-210331T0400Z/
/O.NEW.KEKA.SE.W.0025.210331T0401Z-210331T1300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
901 PM PDT Tue Mar 30 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 6 AM PDT WEDNESDAY...
...GALE WARNING HAS EXPIRED...

* WHAT...Very steep and hazardous seas 10 to 15 feet.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...Until 6 AM PDT Wednesday.

* IMPACTS...Very steep and hazardous seas could capsize or cause
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ455-311215-
/O.EXP.KEKA.SE.W.0024.000000T0000Z-210331T0400Z/
/O.NEW.KEKA.SC.Y.0040.210331T0401Z-210331T1300Z/
Cape Mendocino to Pt Arena out 10 nm-
901 PM PDT Tue Mar 30 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM PDT WEDNESDAY...
...HAZARDOUS SEAS WARNING HAS EXPIRED...

* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 
  7 to 10 feet.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...Until 6 AM PDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-310700-
/O.CON.KEKA.GL.W.0020.000000T0000Z-210331T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
901 PM PDT Tue Mar 30 2021

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT...

* WHAT...North winds 20 to 30 kt with gusts up to 40 kt and seas 
  11 to 14 feet.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...Until midnight PDT tonight.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$
5 follow-up statements
648 
WHUS76 KEKA 310645
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1145 PM PDT Tue Mar 30 2021

PZZ470-311300-
/O.EXP.KEKA.GL.W.0020.000000T0000Z-210331T0700Z/
/O.EXB.KEKA.SE.W.0025.210331T0700Z-210331T1300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1145 PM PDT Tue Mar 30 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 6 AM PDT WEDNESDAY...
...GALE WARNING WILL EXPIRE AT MIDNIGHT PDT TONIGHT...

* WHAT...Very steep and hazardous seas 11 to 13 feet expected.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...Until 6 AM PDT Wednesday.

* IMPACTS...Very steep and hazardous seas could capsize or cause 
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ475-311300-
/O.CON.KEKA.SE.W.0025.000000T0000Z-210331T1300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1145 PM PDT Tue Mar 30 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 AM PDT
WEDNESDAY...

* WHAT...Very steep and hazardous seas 9 to 13 feet.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...Until 6 AM PDT Wednesday.

* IMPACTS...Very steep and hazardous seas could capsize or cause 
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ450-311300-
/O.CON.KEKA.SC.Y.0040.000000T0000Z-210331T1300Z/
Pt St George to Cape Mendocino out 10 nm-
1145 PM PDT Tue Mar 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT
WEDNESDAY...

* WHAT...North winds 5 to 15 kt and seas 8 to 10 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...Until 6 AM PDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-311300-
/O.CON.KEKA.SC.Y.0040.000000T0000Z-210331T1300Z/
Cape Mendocino to Pt Arena out 10 nm-
1145 PM PDT Tue Mar 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT
WEDNESDAY...

* WHAT...Seas 5 to 8 feet.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...Until 6 AM PDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
079 
WHUS76 KEKA 310947
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
247 AM PDT Wed Mar 31 2021

PZZ470-311400-
/O.EXT.KEKA.SE.W.0025.000000T0000Z-210331T1400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
247 AM PDT Wed Mar 31 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 7 AM PDT THIS
MORNING...

* WHAT...Very steep and hazardous seas 8 to 13 feet.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...Until 7 AM PDT this morning.

* IMPACTS...Very steep and hazardous seas could capsize or cause 
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ475-311400-
/O.EXT.KEKA.SE.W.0025.000000T0000Z-210331T1400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
247 AM PDT Wed Mar 31 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 7 AM PDT THIS
MORNING...

* WHAT...Very steep and hazardous seas 8 to 13 feet.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...Until 7 AM PDT this morning.

* IMPACTS...Very steep and hazardous seas could capsize or cause 
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ450-311400-
/O.EXT.KEKA.SC.Y.0040.000000T0000Z-210331T1400Z/
Pt St George to Cape Mendocino out 10 nm-
247 AM PDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM PDT THIS
MORNING...

* WHAT...Seas 7 to 10 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...Until 7 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.

&&

$$

PZZ455-311400-
/O.EXT.KEKA.SC.Y.0040.000000T0000Z-210331T1400Z/
Cape Mendocino to Pt Arena out 10 nm-
247 AM PDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM PDT THIS
MORNING...

* WHAT...Seas 5 to 8 feet.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...Until 7 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.

&&

$$
139 
WHUS76 KEKA 311316 AAA
MWWEKA

URGENT - MARINE WEATHER MESSAGE...UPDATED
National Weather Service Eureka CA
616 AM PDT Wed Mar 31 2021

PZZ470-312000-
/O.CON.KEKA.SE.W.0025.000000T0000Z-210331T1400Z/
/O.EXB.KEKA.SC.Y.0040.210331T1400Z-210331T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
616 AM PDT Wed Mar 31 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 7 AM PDT THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM PDT THIS AFTERNOON...

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

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...For the Hazardous Seas Warning, until 7 AM PDT this 
  morning. For the Small Craft Advisory, until 1 PM PDT this 
  afternoon.

* IMPACTS...Very steep and hazardous seas could capsize or cause 
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ475-312000-
/O.CON.KEKA.SE.W.0025.000000T0000Z-210331T1400Z/
/O.EXB.KEKA.SC.Y.0040.210331T1400Z-210331T2000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
616 AM PDT Wed Mar 31 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 7 AM PDT THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM PDT THIS AFTERNOON...

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

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...For the Hazardous Seas Warning, until 7 AM PDT this 
  morning. For the Small Craft Advisory, until 1 PM PDT this 
  afternoon.

* IMPACTS...Very steep and hazardous seas could capsize or cause 
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ450-311430-
/O.CON.KEKA.SC.Y.0040.000000T0000Z-210331T1400Z/
Pt St George to Cape Mendocino out 10 nm-
616 AM PDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM PDT THIS
MORNING...

* WHAT...Seas 6 to 8 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...Until 7 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.

&&

$$

PZZ455-311430-
/O.CON.KEKA.SC.Y.0040.000000T0000Z-210331T1400Z/
Cape Mendocino to Pt Arena out 10 nm-
616 AM PDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM PDT THIS
MORNING...

* WHAT...Seas 4 to 7 feet.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...Until 7 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.

&&

$$
890 
WHUS76 KEKA 311525
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
825 AM PDT Wed Mar 31 2021

PZZ470-312000-
/O.CON.KEKA.SC.Y.0040.000000T0000Z-210331T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
825 AM PDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM PDT THIS
AFTERNOON...

* WHAT...Seas 7 to 10 feet.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...Until 1 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.

&&

$$

PZZ475-312000-
/O.CON.KEKA.SC.Y.0040.000000T0000Z-210331T2000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
825 AM PDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM PDT THIS
AFTERNOON...

* WHAT...Seas 7 to 10 feet.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...Until 1 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.

&&

$$
549 
WHUS76 KEKA 311821
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1121 AM PDT Wed Mar 31 2021

PZZ470-475-311930-
/O.CAN.KEKA.SC.Y.0040.000000T0000Z-210331T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
1121 AM PDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY IS CANCELLED...



$$

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 30, 9:01 PM PDTHazardous Seas WarningEKA10 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.