Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 45, NWS Eureka, CA

April 13, 2021

NWS Eureka, CA issued this small craft advisory at Apr 13, 2021, 8:13 PM PDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Apr 13, 2021, 8:13 PM PDT (03:13 UTC)
Expired
Apr 14, 2021, 6:00 AM PDT
In force
10 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

327 
WHUS76 KEKA 140313
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
813 PM PDT Tue Apr 13 2021

PZZ455-141115-
/O.CAN.KEKA.SE.W.0027.000000T0000Z-210414T0400Z/
/O.NEW.KEKA.SC.Y.0045.210414T0313Z-210414T1200Z/
Cape Mendocino to Pt Arena out 10 nm-
813 PM PDT Tue Apr 13 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM PDT WEDNESDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  6 to 11 feet.

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

* WHEN...Until 5 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.

&&

$$

PZZ450-141115-
/O.EXT.KEKA.SE.W.0027.000000T0000Z-210414T1200Z/
Pt St George to Cape Mendocino out 10 nm-
813 PM PDT Tue Apr 13 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 5 AM PDT
WEDNESDAY...

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

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

* WHEN...Until 5 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.

&&

$$

PZZ470-475-141000-
/O.CON.KEKA.GL.W.0021.000000T0000Z-210414T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
813 PM PDT Tue Apr 13 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PDT WEDNESDAY...

* WHAT...North winds 25 to 30 kt with gusts up to 40 kt and seas 
  11 to 13 feet.

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

* WHEN...Until 3 AM PDT Wednesday.

* 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.

&&

$$
2 follow-up statements
090 
WHUS76 KEKA 140948
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
248 AM PDT Wed Apr 14 2021

PZZ470-141600-
/O.EXP.KEKA.GL.W.0021.000000T0000Z-210414T1000Z/
/O.EXB.KEKA.SE.W.0027.210414T1000Z-210414T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
248 AM PDT Wed Apr 14 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 9 AM PDT THIS MORNING...
...GALE WARNING WILL EXPIRE AT 3 AM PDT EARLY THIS MORNING...

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

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

* WHEN...Until 9 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.

&&

$$

PZZ475-141600-
/O.EXP.KEKA.GL.W.0021.000000T0000Z-210414T1000Z/
/O.EXB.KEKA.SE.W.0027.210414T1000Z-210414T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
248 AM PDT Wed Apr 14 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 9 AM PDT THIS MORNING...
...GALE WARNING WILL EXPIRE AT 3 AM PDT EARLY THIS MORNING...

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

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

* WHEN...Until 9 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.

&&

$$

PZZ450-141300-
/O.EXT.KEKA.SE.W.0027.000000T0000Z-210414T1300Z/
Pt St George to Cape Mendocino out 10 nm-
248 AM PDT Wed Apr 14 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 6 AM PDT EARLY THIS
MORNING...

* WHAT...Very steep and hazardous seas 6 to 11 feet.

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

* WHEN...Until 6 AM PDT early 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.

&&

$$

PZZ455-141300-
/O.EXT.KEKA.SC.Y.0045.000000T0000Z-210414T1300Z/
Cape Mendocino to Pt Arena out 10 nm-
248 AM PDT Wed Apr 14 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM PDT EARLY THIS
MORNING...

* WHAT...North winds 10 to 20 kt and seas 6 to 11 feet.

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

* WHEN...Until 6 AM PDT early 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.

&&

$$
661 
WHUS76 KEKA 141250
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
550 AM PDT Wed Apr 14 2021

PZZ450-141645-
/O.EXP.KEKA.SE.W.0027.000000T0000Z-210414T1300Z/
/O.NEW.KEKA.SC.Y.0046.210414T1300Z-210415T1000Z/
Pt St George to Cape Mendocino out 10 nm-
550 AM PDT Wed Apr 14 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PDT THURSDAY...
...HAZARDOUS SEAS WARNING WILL EXPIRE AT 6 AM PDT EARLY THIS
MORNING...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 
  5 to 7 feet expected.

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

* WHEN...Until 3 AM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-141400-
/O.EXP.KEKA.SC.Y.0045.000000T0000Z-210414T1300Z/
Cape Mendocino to Pt Arena out 10 nm-
550 AM PDT Wed Apr 14 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 6 AM PDT EARLY THIS
MORNING...

$$

PZZ470-141600-
/O.CON.KEKA.SE.W.0027.000000T0000Z-210414T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
550 AM PDT Wed Apr 14 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS
MORNING...

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

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

* WHEN...Until 9 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.

&&

$$

PZZ475-141600-
/O.CON.KEKA.SE.W.0027.000000T0000Z-210414T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
550 AM PDT Wed Apr 14 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS
MORNING...

* WHAT...Very steep and hazardous seas 8 to 12 feet.

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

* WHEN...Until 9 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 5:50 AM PDTSmall Craft AdvisoryEKA30 hr
Apr 14, 2:50 PM PDTFrost AdvisoryEKADel Norte, Humboldt, Lake, Mendocino, Trinity18 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.