Alert archive / California / Hazardous Seas Warnings in 2021

Hazardous Seas Warning 37, NWS Eureka, CA

May 16, 2021

NWS Eureka, CA issued this hazardous seas warning at May 16, 2021, 2:32 AM PDT. It was in force for 9 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 16, 2021, 2:32 AM PDT (09:32 UTC)
Expired
May 16, 2021, 11:59 AM PDT
In force
9 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

290 
WHUS76 KEKA 160932
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
232 AM PDT Sun May 16 2021

PZZ470-161745-
/O.CAN.KEKA.GL.W.0026.000000T0000Z-210516T1000Z/
/O.NEW.KEKA.SE.W.0037.210516T0932Z-210516T1900Z/
Pt St George to Cape Mendocino 10 to 60 nm-
232 AM PDT Sun May 16 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL NOON PDT TODAY...
...GALE WARNING IS CANCELLED...

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

&&

$$

PZZ475-161745-
/O.CAN.KEKA.GL.W.0026.000000T0000Z-210516T1000Z/
/O.NEW.KEKA.SE.W.0037.210516T0932Z-210516T1900Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
232 AM PDT Sun May 16 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL NOON PDT TODAY...
...GALE WARNING IS CANCELLED...

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

* WHERE...Cape Mendocino to Pt Arena 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.

&&

$$

PZZ450-161745-
/O.CAN.KEKA.SE.W.0036.000000T0000Z-210516T1000Z/
/O.NEW.KEKA.SC.Y.0057.210516T0932Z-210516T1900Z/
Pt St George to Cape Mendocino out 10 nm-
232 AM PDT Sun May 16 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON PDT TODAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WHAT...Seas 7 to 10 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.

&&

$$

PZZ455-161745-
/O.EXT.KEKA.SC.Y.0055.000000T0000Z-210516T1900Z/
Cape Mendocino to Pt Arena out 10 nm-
232 AM PDT Sun May 16 2021

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

* WHAT...Seas 6 to 9 feet.

* WHERE...Cape Mendocino to Pt Arena 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.

&&

$$
2 follow-up statements
219 
WHUS76 KEKA 161553
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
853 AM PDT Sun May 16 2021

PZZ470-161900-
/O.CON.KEKA.SE.W.0037.000000T0000Z-210516T1900Z/
Pt St George to Cape Mendocino 10 to 60 nm-
853 AM PDT Sun May 16 2021

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

* WHAT...Very steep and hazardous seas 9 to 12 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.

&&

$$

PZZ475-161900-
/O.CON.KEKA.SE.W.0037.000000T0000Z-210516T1900Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
853 AM PDT Sun May 16 2021

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

* WHAT...Very steep and hazardous seas 7 to 12 feet.

* WHERE...Cape Mendocino to Pt Arena 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.

&&

$$

PZZ450-170000-
/O.EXT.KEKA.SC.Y.0057.000000T0000Z-210517T1600Z/
Pt St George to Cape Mendocino out 10 nm-
853 AM PDT Sun May 16 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PDT MONDAY...

* WHAT...Seas 5 to 7 feet.

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

* WHEN...Until 9 AM PDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-170000-
/O.EXT.KEKA.SC.Y.0055.000000T0000Z-210517T1600Z/
Cape Mendocino to Pt Arena out 10 nm-
853 AM PDT Sun May 16 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PDT MONDAY...

* WHAT...Northwest winds 5 to 15 kt with gusts up to 25 kt and 
  seas 4 to 6 feet.

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

* WHEN...Until 9 AM PDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
450 
WHUS76 KEKA 161859 AAA
MWWEKA

URGENT - MARINE WEATHER MESSAGE...UPDATED
National Weather Service Eureka CA
1159 AM PDT Sun May 16 2021

PZZ470-170300-
/O.CAN.KEKA.SE.W.0037.000000T0000Z-210516T1900Z/
/O.EXB.KEKA.SC.Y.0057.210516T1900Z-210517T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1159 AM PDT Sun May 16 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM PDT MONDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 
  6 to 11 feet expected.

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

* WHEN...Until 1 PM PDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-170300-
/O.CAN.KEKA.SE.W.0037.000000T0000Z-210516T1900Z/
/O.EXB.KEKA.SC.Y.0057.210516T1900Z-210518T1400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1159 AM PDT Sun May 16 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM PDT TUESDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and 
  seas 6 to 9 feet expected.

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

* WHEN...Until 7 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.

&&

$$

PZZ450-170300-
/O.CON.KEKA.SC.Y.0057.000000T0000Z-210517T1600Z/
Pt St George to Cape Mendocino out 10 nm-
1159 AM PDT Sun May 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT MONDAY...

* WHAT...Seas 5 to 7 feet.

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

* WHEN...Until 9 AM PDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-170300-
/O.CON.KEKA.SC.Y.0055.000000T0000Z-210517T1600Z/
Cape Mendocino to Pt Arena out 10 nm-
1159 AM PDT Sun May 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT MONDAY...

* WHAT...Northwest winds 5 to 15 kt with gusts up to 25 kt and 
  seas 4 to 6 feet.

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

* WHEN...Until 9 AM PDT Monday.

* 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 16, 2:32 AM PDTSmall Craft AdvisoryEKA5 days

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.