Alert archive / California / Hazardous Seas Warnings in 2021

Hazardous Seas Warning 26, NWS Eureka, CA

April 5, 2021

NWS Eureka, CA issued this hazardous seas warning at Apr 5, 2021, 3:18 AM PDT. It was in force for 27 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 5, 2021, 3:18 AM PDT (10:18 UTC)
Expired
Apr 6, 2021, 5:58 AM PDT
In force
27 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

440 
WHUS76 KEKA 051018
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
318 AM PDT Mon Apr 5 2021

PZZ470-051830-
/O.UPG.KEKA.SC.Y.0042.000000T0000Z-210407T0700Z/
/O.NEW.KEKA.SE.W.0026.210405T1018Z-210406T1300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
318 AM PDT Mon Apr 5 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 6 AM TUESDAY...

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

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

* WHEN...Until 6 AM Tuesday.

* 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.

$$

PZZ450-051830-
/O.CON.KEKA.SC.Y.0042.210405T1900Z-210406T1300Z/
Pt St George to Cape Mendocino out 10 nm-
318 AM PDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 AM
TUESDAY...

* WHAT...North winds 15 to 25 kt with occasional gusts to 35 kt 
  and seas 6 to 9 feet expected.

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

* WHEN...From noon today to 6 AM Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

$$

PZZ475-051830-
/O.CON.KEKA.SC.Y.0042.000000T0000Z-210407T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
318 AM PDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT TUESDAY
NIGHT...

* WHAT...North winds 15 to 25 kt with gusts to 30 kt and seas 7 
  to 12 feet.

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

* WHEN...Until midnight Tuesday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

$$
5 follow-up statements
247 
WHUS76 KEKA 051528
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
828 AM PDT Mon Apr 5 2021

PZZ470-052330-
/O.CON.KEKA.SE.W.0026.000000T0000Z-210406T1300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
828 AM PDT Mon Apr 5 2021

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

* WHAT...Very steep and hazardous seas 10 to 13 feet.

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

* WHEN...Until 6 AM PDT Tuesday.

* 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.

&&

$$

PZZ450-052330-
/O.CON.KEKA.SC.Y.0042.210405T1900Z-210406T1300Z/
Pt St George to Cape Mendocino out 10 nm-
828 AM PDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 AM
PDT TUESDAY...

* WHAT...North winds 15 to 25 kt with occasional gusts up to 35 
  kt and seas 6 to 9 feet expected.

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

* WHEN...From noon today to 6 AM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-052330-
/O.CON.KEKA.SC.Y.0042.000000T0000Z-210407T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
828 AM PDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TUESDAY NIGHT...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  7 to 12 feet.

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

* WHEN...Until midnight PDT Tuesday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
043 
WHUS76 KEKA 052201
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
301 PM PDT Mon Apr 5 2021

PZZ470-060615-
/O.CON.KEKA.SE.W.0026.000000T0000Z-210406T1300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
301 PM PDT Mon Apr 5 2021

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

* WHAT...Very steep and hazardous seas 10 to 12 feet.

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

* WHEN...Until 6 AM PDT Tuesday.

* 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.

&&

$$

PZZ450-060615-
/O.CON.KEKA.SC.Y.0042.000000T0000Z-210406T1300Z/
Pt St George to Cape Mendocino out 10 nm-
301 PM PDT Mon Apr 5 2021

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

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 
  6 to 9 feet.

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

* WHEN...Until 6 AM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-060615-
/O.CON.KEKA.SC.Y.0042.000000T0000Z-210407T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
301 PM PDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TUESDAY NIGHT...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  7 to 12 feet.

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

* WHEN...Until midnight PDT Tuesday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
671 
WHUS76 KEKA 060344
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
844 PM PDT Mon Apr 5 2021

PZZ470-061145-
/O.CON.KEKA.SE.W.0026.000000T0000Z-210406T1300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
844 PM PDT Mon Apr 5 2021

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

* WHAT...Very steep and hazardous seas 10 to 12 feet.

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

* WHEN...Until 6 AM PDT Tuesday.

* 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.

&&

$$

PZZ450-061145-
/O.CON.KEKA.SC.Y.0042.000000T0000Z-210406T1300Z/
Pt St George to Cape Mendocino out 10 nm-
844 PM PDT Mon Apr 5 2021

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

* WHAT...North winds 10 to 20 kt with gusts up to 35 kt and seas 
  6 to 9 feet.

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

* WHEN...Until 6 AM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-061145-
/O.CON.KEKA.SC.Y.0042.000000T0000Z-210407T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
844 PM PDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TUESDAY NIGHT...

* 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 10 to 60 nm.

* WHEN...Until midnight PDT Tuesday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
897 
WHUS76 KEKA 060931
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
231 AM PDT Tue Apr 6 2021

PZZ470-061300-
/O.CON.KEKA.SE.W.0026.000000T0000Z-210406T1300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
231 AM PDT Tue Apr 6 2021

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

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

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

&&

$$

PZZ450-061300-
/O.CON.KEKA.SC.Y.0042.000000T0000Z-210406T1300Z/
Pt St George to Cape Mendocino out 10 nm-
231 AM PDT Tue Apr 6 2021

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

* WHAT...Seas 6 to 9 feet.

* WHERE...Pt St George to Cape Mendocino 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.

&&

$$

PZZ475-061745-
/O.CON.KEKA.SC.Y.0042.000000T0000Z-210407T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
231 AM PDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 
  6 to 11 feet.

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

* WHEN...Until midnight PDT tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
596 
WHUS76 KEKA 061258
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
558 AM PDT Tue Apr 6 2021

PZZ470-062100-
/O.CAN.KEKA.SE.W.0026.000000T0000Z-210406T1300Z/
/O.EXB.KEKA.SC.Y.0042.000000T0000Z-210407T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
558 AM PDT Tue Apr 6 2021

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

* WHAT...North winds 15 to 20 kt with gusts up to 25 kt and seas 
  6 to 11 feet.

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

&&

$$

PZZ450-061400-
/O.EXP.KEKA.SC.Y.0042.000000T0000Z-210406T1300Z/
Pt St George to Cape Mendocino out 10 nm-
558 AM PDT Tue Apr 6 2021

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

$$

PZZ475-062100-
/O.CON.KEKA.SC.Y.0042.000000T0000Z-210407T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
558 AM PDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 
  6 to 11 feet.

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

* WHEN...Until midnight PDT tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Nearby

Hazardous Seas Warnings in California, 2021Every hazardous seas warning 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.