Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 83, NWS Eureka, CA

August 10, 2021

NWS Eureka, CA issued this small craft advisory at Aug 10, 2021, 2:50 AM PDT. It took effect at Aug 10, 2021, 3:00 AM PDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Aug 10, 2021, 2:50 AM PDT (09:50 UTC)
In effect from
Aug 10, 2021, 3:00 AM PDT
Expired
Aug 11, 2021, 3:00 AM PDT
In force
24 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

313 
WHUS76 KEKA 100950
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
250 AM PDT Tue Aug 10 2021

PZZ475-101800-
/O.EXP.KEKA.SE.W.0043.000000T0000Z-210810T1000Z/
/O.NEW.KEKA.SC.Y.0083.210810T1000Z-210810T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
250 AM PDT Tue Aug 10 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON...
...HAZARDOUS SEAS WARNING WILL EXPIRE AT 3 AM PDT EARLY THIS
MORNING...

* WHAT...North winds 5 to 15 kt with gusts up to 25 kt and seas 
  6 to 10 feet expected.

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-101800-
/O.EXT.KEKA.SE.W.0043.000000T0000Z-210810T1900Z/
Pt St George to Cape Mendocino 10 to 60 nm-
250 AM PDT Tue Aug 10 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL NOON PDT TODAY...

* WHAT...Very steep and hazardous seas 9 to 12 feet. Winds 10 to
  25 kt, with some localized gusts to 35 kt.

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

* WHEN...Until noon PDT today.

* 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.

&&

$$

PZZ450-101600-
/O.EXT.KEKA.SC.Y.0081.000000T0000Z-210810T1600Z/
Pt St George to Cape Mendocino out 10 nm-
250 AM PDT Tue Aug 10 2021

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

* WHAT...Seas 6 to 10 feet.

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
5 follow-up statements
126 
WHUS76 KEKA 101549
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
849 AM PDT Tue Aug 10 2021

PZZ470-101900-
/O.CON.KEKA.SE.W.0043.000000T0000Z-210810T1900Z/
Pt St George to Cape Mendocino 10 to 60 nm-
849 AM PDT Tue Aug 10 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL NOON PDT
TODAY...

* WHAT...Very steep and hazardous seas 9 to 11 feet.

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

* WHEN...Until noon PDT today.

* 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.

&&

$$

PZZ450-101900-
/O.EXT.KEKA.SC.Y.0081.000000T0000Z-210810T1900Z/
Pt St George to Cape Mendocino out 10 nm-
849 AM PDT Tue Aug 10 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON PDT TODAY...

* WHAT...Seas 6 to 8 feet.

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

* WHEN...Until noon PDT today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-102200-
/O.CON.KEKA.SC.Y.0083.000000T0000Z-210810T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
849 AM PDT Tue Aug 10 2021

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

* WHAT...Seas 6 to 9 feet.

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

&&

$$
372 
WHUS76 KEKA 101850
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1150 AM PDT Tue Aug 10 2021

PZZ470-110300-
/O.CAN.KEKA.SE.W.0043.000000T0000Z-210810T1900Z/
/O.EXB.KEKA.SC.Y.0083.000000T0000Z-210811T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1150 AM PDT Tue Aug 10 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PDT WEDNESDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

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

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

* WHEN...Until 3 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.

&&

$$

PZZ450-102000-
/O.EXP.KEKA.SC.Y.0081.000000T0000Z-210810T1900Z/
Pt St George to Cape Mendocino out 10 nm-
1150 AM PDT Tue Aug 10 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT NOON PDT TODAY...


$$

PZZ475-110300-
/O.EXT.KEKA.SC.Y.0083.000000T0000Z-210811T0300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1150 AM PDT Tue Aug 10 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* WHAT...Seas 6 to 8 feet.

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

* WHEN...Until 8 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.

&&

$$
992 
WHUS76 KEKA 102047
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
147 PM PDT Tue Aug 10 2021

PZZ470-110530-
/O.CON.KEKA.SC.Y.0083.000000T0000Z-210811T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
147 PM PDT Tue Aug 10 2021

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

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

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

* WHEN...Until 3 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.

&&

$$

PZZ475-110300-
/O.CON.KEKA.SC.Y.0083.000000T0000Z-210811T0300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
147 PM PDT Tue Aug 10 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* WHAT...Steep seas 6 to 8 feet.

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

* WHEN...Until 8 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.

&&

$$
355 
WHUS76 KEKA 110303
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
803 PM PDT Tue Aug 10 2021

PZZ475-110415-
/O.EXP.KEKA.SC.Y.0083.000000T0000Z-210811T0300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
803 PM PDT Tue Aug 10 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds and seas have dropped to 5 to 6 feet 8 seconds which is
below small craft advisory levels. 

$$

PZZ470-111000-
/O.CON.KEKA.SC.Y.0083.000000T0000Z-210811T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
803 PM PDT Tue Aug 10 2021

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

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

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

* WHEN...Until 3 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.

&&

$$
198 
WHUS76 KEKA 110931
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
231 AM PDT Wed Aug 11 2021

PZZ470-111045-
/O.EXP.KEKA.SC.Y.0083.000000T0000Z-210811T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
231 AM PDT Wed Aug 11 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 AM PDT EARLY THIS
MORNING...

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 5:16 AM PDTHeat AdvisoryEKAHumboldt, Lake, Mendocino, Trinity57 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.