Alert archive / California / Hazardous Seas Warnings in 2021

Hazardous Seas Warning 35, NWS Eureka, CA

May 12, 2021

NWS Eureka, CA issued this hazardous seas warning at May 12, 2021, 2:12 AM PDT. It was in force for 7 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
May 12, 2021, 2:12 AM PDT (09:12 UTC)
Expired
May 12, 2021, 9:06 AM PDT
In force
7 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

711 
WHUS76 KEKA 120912
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
212 AM PDT Wed May 12 2021

PZZ475-121715-
/O.CAN.KEKA.SE.W.0034.000000T0000Z-210512T1200Z/
/O.EXB.KEKA.SC.Y.0055.000000T0000Z-210514T0300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
212 AM PDT Wed May 12 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM PDT THURSDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* 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 8 PM 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.

&&

$$

PZZ470-121715-
/O.EXP.KEKA.GL.W.0025.000000T0000Z-210512T0900Z/
/O.NEW.KEKA.SE.W.0035.210512T0912Z-210512T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
212 AM PDT Wed May 12 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 11 AM PDT THIS
MORNING...
...GALE WARNING HAS EXPIRED...

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

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

* WHEN...Until 11 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.

&&

$$

PZZ450-121715-
/O.CON.KEKA.SC.Y.0055.000000T0000Z-210513T1300Z/
Pt St George to Cape Mendocino out 10 nm-
212 AM PDT Wed May 12 2021

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

* WHAT...North winds 5 to 15 kt with gusts up to 25 kt and seas 
  5 to 8 feet.

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

* WHEN...Until 6 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.

&&

$$
1 follow-up statement
043 
WHUS76 KEKA 121606
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
906 AM PDT Wed May 12 2021

PZZ470-130015-
/O.CAN.KEKA.SE.W.0035.000000T0000Z-210512T1800Z/
/O.EXB.KEKA.SC.Y.0055.000000T0000Z-210514T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
906 AM PDT Wed May 12 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PDT THURSDAY...

* WHAT...North winds 15 to 25 kt with a few gusts up to 35 kt and
  seas 8 to 11 feet.

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

* WHEN...Until 9 PM 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.

&&

$$

PZZ475-130015-
/O.EXT.KEKA.SC.Y.0055.000000T0000Z-210514T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
906 AM PDT Wed May 12 2021

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

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

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

* WHEN...Until 9 PM 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.

&&

$$

PZZ450-130015-
/O.CON.KEKA.SC.Y.0055.000000T0000Z-210513T1300Z/
Pt St George to Cape Mendocino out 10 nm-
906 AM PDT Wed May 12 2021

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

* WHAT...North winds 5 to 15 kt with gusts up to 25 kt and seas 
  5 to 7 feet.

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

* WHEN...Until 6 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 2:25 PM PDTGale WatchEKA36 hr

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.