Alert archive / California / Hazardous Seas Warnings in 2017

Hazardous Seas Warning 24, NWS Eureka, CA

October 18, 2017

NWS Eureka, CA issued this hazardous seas warning at Oct 18, 2017, 3:18 PM PDT. It took effect at Oct 19, 2017, 5:00 PM PDT. It was in force for 25 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
Oct 18, 2017, 3:18 PM PDT (22:18 UTC)
In effect from
Oct 19, 2017, 5:00 PM PDT
Expired
Oct 20, 2017, 6:13 PM PDT
In force
25 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

497 
WHUS76 KEKA 182218
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
318 PM PDT WED OCT 18 2017

PZZ450-455-190630-
/O.CON.KEKA.SC.Y.0104.171019T1600Z-171019T2200Z/
/O.UPG.KEKA.SE.A.0002.171019T2200Z-171020T2200Z/
/O.NEW.KEKA.SE.W.0024.171019T2200Z-171020T2200Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
318 PM PDT WED OCT 18 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 3 PM PDT
THURSDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 PM THURSDAY TO 3 PM
PDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A HAZARDOUS
SEAS WARNING, WHICH IS IN EFFECT FROM 3 PM THURSDAY TO 3 PM PDT
FRIDAY. THE HAZARDOUS SEAS WATCH IS NO LONGER IN EFFECT. 

* WINDS...SOUTH GUSTS AROUND 30 KT ON THU.

* WAVES/SEAS...NW SWELL AROUND 20 FT THU NIGHT THROUGH FRI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ470-190630-
/O.CON.KEKA.SC.Y.0104.171019T1000Z-171019T2200Z/
/O.UPG.KEKA.SE.A.0002.171019T2200Z-171020T2200Z/
/O.NEW.KEKA.SE.W.0024.171019T2200Z-171020T2200Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
318 PM PDT WED OCT 18 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 3 PM PDT
THURSDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 PM THURSDAY TO 3 PM
PDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A HAZARDOUS
SEAS WARNING, WHICH IS IN EFFECT FROM 3 PM THURSDAY TO 3 PM PDT
FRIDAY. THE HAZARDOUS SEAS WATCH IS NO LONGER IN EFFECT. 

* WINDS...SOUTH GUSTS AROUND 35 KT ON THU.

* WAVES/SEAS...NW SWELL 20 FT THU NIGHT THROUGH FRI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ475-190630-
/O.CON.KEKA.SC.Y.0104.171019T1600Z-171019T2200Z/
/O.UPG.KEKA.SE.A.0002.171019T2200Z-171020T2200Z/
/O.NEW.KEKA.SE.W.0024.171019T2200Z-171020T2200Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
318 PM PDT WED OCT 18 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 3 PM PDT
THURSDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 PM THURSDAY TO 3 PM
PDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A HAZARDOUS
SEAS WARNING, WHICH IS IN EFFECT FROM 3 PM THURSDAY TO 3 PM PDT
FRIDAY. THE HAZARDOUS SEAS WATCH IS NO LONGER IN EFFECT. 

* WINDS...SOUTH GUSTS TO 30 KT ON THU.

* WAVES/SEAS...NW SWELL 20 FT THU NIGHT THROUGH FRI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$
10 follow-up statements
875 
WHUS76 KEKA 190312
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
812 PM PDT WED OCT 18 2017

PZZ450-455-191115-
/O.EXT.KEKA.SC.Y.0104.171019T1600Z-171020T0000Z/
/O.EXT.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
812 PM PDT WED OCT 18 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM TO 5 PM PDT
THURSDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 5 PM THURSDAY TO
6 PM PDT FRIDAY...

* WINDS...SOUTH 15 TO 25 KT GUSTING TO 30 KT.

* WAVES/SEAS...STEEP SOUTHERLY WIND WAVES 4 TO 7 FEET DURING 
  THURSDAY FOLLOWED BY A LARGE NORTHWEST SWELL AROUND 20 FT AT 17 
  SECONDS THURSDAY NIGHT THROUGH FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ470-191115-
/O.EXT.KEKA.SC.Y.0104.171019T1000Z-171020T0000Z/
/O.EXT.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
812 PM PDT WED OCT 18 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 AM TO 5 PM PDT
THURSDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 5 PM THURSDAY TO
6 PM PDT FRIDAY...

* WINDS...SOUTH 20 TO 30 KT WITH OCCASIONAL GUSTS TO 35 KT DURING
  THURSDAY.

* WAVES/SEAS...STEEP SOUTHERLY WIND WAVES 7 TO 10 FEET DURING 
  THURSDAY FOLLOWED BY A LARGE NORTHWEST SWELL 20 FT AT 17 SECONDS
  THURSDAY NIGHT THROUGH FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ475-191115-
/O.EXT.KEKA.SC.Y.0104.171019T1600Z-171020T0000Z/
/O.EXT.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
812 PM PDT WED OCT 18 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM TO 5 PM PDT
THURSDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 5 PM THURSDAY TO
6 PM PDT FRIDAY...

* WINDS...SOUTH 15 TO 25 KT GUSTING TO 30 KT DURING THURSDAY.

* WAVES/SEAS...STEEP SOUTHERLY WIND WAVES 5 TO 10 FEET DURING
  THURSDAY FOLLOWED BY A LARGE NORTHWEST SWELL 20 FT AT 17 SECONDS
  THURSDAY NIGHT THROUGH FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$
715 
WHUS76 KEKA 191141
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
441 AM PDT THU OCT 19 2017

PZZ450-455-191945-
/O.CON.KEKA.SC.Y.0104.171019T1600Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
441 AM PDT THU OCT 19 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 5 PM PDT THIS AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 PM PDT FRIDAY...

* WINDS...SOUTH 15 TO 25 KT GUSTING TO 30 KT TODAY.

* WAVES/SEAS...STEEP SOUTHERLY WIND WAVES 4 TO 7 FEET TODAY
  FOLLOWED BY A LARGE NORTHWEST SWELL AROUND 20 FT AT 17 SECONDS
  TONIGHT THROUGH FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ470-191945-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
441 AM PDT THU OCT 19 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 PM PDT FRIDAY...

* WINDS...SOUTH 20 TO 30 KT WITH OCCASIONAL GUSTS TO 35 KT TODAY. 

* WAVES/SEAS...STEEP SOUTHERLY WIND WAVES 7 TO 10 FEET TODAY
  FOLLOWED BY A LARGE NORTHWEST SWELL AROUND 20 FT AT 17 SECONDS
  TONIGHT THROUGH FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ475-191945-
/O.CON.KEKA.SC.Y.0104.171019T1600Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
441 AM PDT THU OCT 19 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 5 PM PDT THIS AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 PM PDT FRIDAY...

* WINDS...SOUTH 15 TO 25 KT GUSTING TO 30 KT TODAY.

* WAVES/SEAS...STEEP SOUTHERLY WIND WAVES 5 TO 7 FEET TODAY
  FOLLOWED BY A LARGE NORTHWEST SWELL AROUND 20 FT AT 17 SECONDS
  TONIGHT THROUGH FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$
675 
WHUS76 KEKA 191612
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
912 AM PDT THU OCT 19 2017

PZZ450-455-200015-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
912 AM PDT THU OCT 19 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 PM FRIDAY...

* WINDS...S 15 TO 25 KT GUSTING TO 30 KT TODAY.

* WAVES...STEEP S WIND WAVES 4 TO 7 FT TODAY FOLLOWED BY 
  A LARGE NW SWELL AROUND 20 FT AT 17 SECONDS TONIGHT 
  THROUGH FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ470-200015-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
912 AM PDT THU OCT 19 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 PM FRIDAY...

* WINDS...S 20 TO 30 KT WITH OCCASIONAL GUSTS TO 35 KT TODAY.

* WAVES...STEEP S WIND WAVES 7 TO 10 FT TODAY FOLLOWED BY A 
  LARGE NW SWELL AROUND 20 FT AT 17 SECONDS TONIGHT THROUGH 
  FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ475-200015-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
912 AM PDT THU OCT 19 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 PM FRIDAY...

* WINDS...S 15 TO 25 KT GUSTING TO 30 KT TODAY.

* WAVES...STEEP S WIND WAVES 5 TO 7 FT TODAY FOLLOWED BY A 
  LARGE NW SWELL AROUND 20 FT AT 17 SECONDS TONIGHT THROUGH 
  FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$
627 
WHUS76 KEKA 192211
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
311 PM PDT THU OCT 19 2017

PZZ450-455-200615-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
311 PM PDT THU OCT 19 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM THIS 
AFTERNOON... 
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM FRIDAY...

* WINDS...SW TO W DIMINISHING TO 10 TO 15 KT. GUSTS TO 25 KT THIS 
  AFTERNOON AND EARLY EVENING.

* WAVES...STEEP S WIND WAVES 2 TO 4 FT THIS AFTERNOON AND EARLY
  EVENING FOLLOWED BY A LARGE NW SWELL AROUND 20 FT AT 17 SECONDS
  TONIGHT THROUGH FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ470-200615-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
311 PM PDT THU OCT 19 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM THIS 
AFTERNOON... 
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM FRIDAY...

* WINDS...SW TO W DIMINISHING TO 10 TO 20 KT. GUSTS TO 30 KT THIS
  AFTERNOON AND EARLY EVENING.

* WAVES...STEEP S WIND WAVES SUBSIDING TO 3 TO 5 FT THIS
  EVENING...FOLLOWED BY A LARGE NW SWELL AROUND 20 FT AT 16 
  SECONDS TONIGHT THROUGH FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$

PZZ475-200615-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
311 PM PDT THU OCT 19 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM THIS 
AFTERNOON... 
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM FRIDAY...

* WINDS...SW TO W DIMINISHING TO 10 TO 20 KT. GUSTS TO 30 KT THIS 
  AFTERNOON AND EARLY EVENING.

* WAVES...STEEP S WIND WAVES DIMINISHING TO 3 TO 5 FT THIS
  EVENING...FOLLOWED BY A LARGE NW SWELL AROUND 20 FT AT 17 
  SECONDS TONIGHT THROUGH FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

$$
269 
WHUS76 KEKA 192357
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
457 PM PDT THU OCT 19 2017

PZZ450-455-200800-
/O.EXP.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
457 PM PDT THU OCT 19 2017

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM PDT
FRIDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 5 PM PDT THIS AFTERNOON...

* WAVES...STEEP WAVES 10 FEET AT 13 SECONDS WILL BE REPLACED BY A
  LARGE NORTHWESTERLY SWELL, WITH WAVES BUILDING TO 20 FEET AT 17
  SECONDS TONIGHT THROUGH FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

&&

$$

PZZ470-200800-
/O.EXP.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
457 PM PDT THU OCT 19 2017

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM PDT
FRIDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 5 PM PDT THIS AFTERNOON...

* WAVES...STEEP WAVES 10 FEET AT 13 SECONDS WILL BE REPLACED BY A
  LARGE NORTHWESTERLY SWELL, WITH WAVES BUILDING TO 20 FEET AT 17
  SECONDS TONIGHT THROUGH FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

&&

$$

PZZ475-200800-
/O.EXP.KEKA.SC.Y.0104.000000T0000Z-171020T0000Z/
/O.CON.KEKA.SE.W.0024.171020T0000Z-171021T0100Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
457 PM PDT THU OCT 19 2017

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM PDT
FRIDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 5 PM PDT THIS AFTERNOON...

* WAVES...STEEP WAVES 10 FEET AT 13 SECONDS WILL BE REPLACED BY A
  LARGE NORTHWESTERLY SWELL, WITH WAVES BUILDING TO 20 FEET AT 17
  SECONDS TONIGHT THROUGH FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

&&

$$
864 
WHUS76 KEKA 200303
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
803 PM PDT THU OCT 19 2017

PZZ450-455-470-475-201115-
/O.CON.KEKA.SE.W.0024.000000T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
803 PM PDT THU OCT 19 2017

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM PDT
FRIDAY...

* WAVES...LARGE SEAS AROUND 20 FEET AT 17 SECONDS TONIGHT THROUGH
  FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

&&

$$
365 
WHUS76 KEKA 201013
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
313 AM PDT FRI OCT 20 2017

PZZ450-455-470-475-201815-
/O.CON.KEKA.SE.W.0024.000000T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
313 AM PDT FRI OCT 20 2017

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...

* WAVES...NW SWELL 18 TO 20 FEET AT 17 SECONDS TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE.  COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

&&

$$
757 
WHUS76 KEKA 201607
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
907 AM PDT FRI OCT 20 2017

PZZ450-455-470-475-210015-
/O.CON.KEKA.SE.W.0024.000000T0000Z-171021T0100Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
907 AM PDT FRI OCT 20 2017

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM THIS 
EVENING...

* WAVES...NW SWELL 18 TO 21 FEET AT 16 SECONDS TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE. COMMERCIAL VESSELS 
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR 
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

$$
210 
WHUS76 KEKA 202216
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
316 PM PDT FRI OCT 20 2017

PZZ450-455-470-475-210400-
/O.EXT.KEKA.SE.W.0024.000000T0000Z-171021T0400Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
316 PM PDT FRI OCT 20 2017

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 9 PM THIS 
EVENING...

* WAVES...NW SWELL 18 TO 20 FT AT 15 SECONDS THIS EVENING... 
  GRADUALLY SUBSIDING OVERNIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS SEAS WARNING MEANS HAZARDOUS SEA CONDITIONS ARE
IMMINENT OR OCCURRING. RECREATIONAL BOATERS SHOULD REMAIN IN
PORT, OR TAKE SHELTER UNTIL WAVES SUBSIDE. COMMERCIAL VESSELS
SHOULD PREPARE FOR ROUGH SEAS AND CONSIDER REMAINING IN PORT OR
TAKING SHELTER IN PORT UNTIL HAZARDOUS SEAS SUBSIDE.

$$
054 
WHUS76 KEKA 210113
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
613 PM PDT FRI OCT 20 2017

PZZ450-455-470-475-210915-
/O.CAN.KEKA.SE.W.0024.000000T0000Z-171021T0400Z/
/O.NEW.KEKA.SC.Y.0105.171021T0113Z-171023T1200Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
613 PM PDT FRI OCT 20 2017

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

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A SMALL CRAFT
ADVISORY, WHICH IS IN EFFECT UNTIL 5 AM PDT MONDAY. THE HAZARDOUS
SEAS WARNING HAS BEEN CANCELLED. 

* WAVES...NORTHWEST 16 FEET AT 15 SECONDS SUBSIDING TO 12 FEET AT
  13 SECOND BY SATURDAY AFTERNOON.
 
* WINDS...SOUTH WINDS INCREASING TO 15 TO 25 KT DURING SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT HAZARDOUS WAVE CONDITIONS WILL
EXIST FOR SMALL CRAFT. INEXPERIENCED MARINERS, ESPECIALLY THOSE
OPERATING SMALLER VESSELS, SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

What forecasters said that day

The local office's own words before this hazardous seas warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Eureka, CA wrote its last area forecast discussion before this hazardous seas warning went out at Oct 18, 3:58 AM PDT, 11 hours 20 minutes earlier.

Area forecast discussion, Oct 18, 3:58 AM PDT, 11 hours 20 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
358 AM PDT Wed Oct 18 2017

.SYNOPSIS...Widespread rain will spread across the region
Thursday afternoon into Friday, with lighter showers persisting
through the weekend. Drier and warmer conditions are expected
next week.

&&

.DISCUSSION...The pictures from space this morning show stratus
along Del Norte and Humboldt counties and it crawling towards the
Mendocino coast. The local profiler at KACV depicts a shallow
marine layer so there should at least be partial clearing along
the coast this afternoon. This is expected to be short lived as
high pressure will be giving way to a shortwave trough as it digs
into the PACNW. Come Thursday morning, portions of the CWA will
start to see rain and by the afternoon widespread rain is
forecast for all of NW CA which will then continue into Friday.
Storm total rainfall accumulation is forecast to be around 2
inches over Del Norte County, ranging to around a quarter inch
over southern Mendocino County.

After the frontal passage, snow levels are forecast to drop to
near 5000 feet. Snow accumulation should remain confined to
elevations above 6000 feet and near the Trinity Alps. Post frontal
thunderstorms are not expected as unfavorable convective
parameters, rising 500mb heights, and slightly warmer midlevel
temperatures will thwart development.

For the weekend, shower activity will persist but should remain
limited to areas north of Mendocino County. Models continue to
suggest drier and warmer weather for early next week as high
pressure builds over the area.

&&

.AVIATION...Stratus north of Cape Blanco has been sliding southward
offshore over the waters through the night. High resolution models
as well as BUFKIT x-sections indicate increasing boundary layer
humidities moving onto the north coast today as northerly flow
increases offshore. Low clouds will probably impact coastal
terminals today as NW breezes develop later this morning.
The duration of IFR conditions is not certain. The potential for IFR
conditions will continue into the evening hours. Otherwise high
level cirrus clouds will stream across the region from the SW today.
Smoke may produce reduced vsbys at KUKI again this morning.

&&

.MARINE...Light to moderate northerlies today and tonight will
diminish on Wed. Southerly winds in advance of a cold front will
produce steep wind waves offshore on Thu. Large (18-20ft) long
period west-northwest swell will build behind the front Thu night.
Large swell will persist into Friday. A warm front will probably
bring another bout of brisk southerly winds and steep southerly
waves Fri night into Sat for the northern waters. Seas will most
likely remain elevated through the weekend.

&&

.FIRE WEATHER...West-southwesterly winds are forecast to
strengthen across area ridgetops tonight and into Thursday ahead
of a cold front. However, RH values will be increasing as winds
strengthen, which should mitigate a more significant fire weather
threat. By Thursday afternoon, widespread rain will spread across
northwest California, with storm total values near 2 inches
expected in Del Norte county, ranging to around a quarter inch
over southern Mendocino county. Lighter showers will then persist
through the weekend, primarily north of Mendocino County, before
warmer and drier conditions return next week.

&&

.BEACH HAZARDS AND SURF...ENP and NWPS remained consistent with
large west-northwest swell building Thu Night and Fri. Swell around
18 to 20 feet with periods near 17 seconds will start to build Thu
Night and peak early Friday morning. Swell of this magnitude will
result in large breakers in the surf zone as well as hazardous waves
in the harbor entrances. We will call attention to this threat in
the hazardous weather outlook and a weather story graphic.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...High Surf Advisory from 6 PM Thursday to 6 PM PDT Friday for
     CAZ101-103-104-109.

NORTHWEST CALIFORNIA COASTAL WATERS...Small Craft Advisory from 9 AM to 3 PM PDT Thursday for PZZ450-
     455-475.

     Hazardous Seas Watch from Thursday afternoon through Friday
     afternoon for PZZ450-455-470-475.

     Small Craft Advisory from 3 AM to 3 PM PDT Thursday for PZZ470.

&&

Visit us at http://www.weather.gov/eureka

Follow us on Facebook and Twitter at:
http://www.facebook.com/NWSEureka
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For forecast zone information
see the forecast zone map online:
http://www.weather.gov/eureka/zonemap.png
Hazardous weather outlook, Oct 18, 5:02 AM PDT, 10 hours 16 minutes before
Hazardous Weather Outlook
National Weather Service Eureka CA
502 AM PDT Wed Oct 18 2017

CAZ101-103-104-109-191215-
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
502 AM PDT Wed Oct 18 2017

...HIGH SURF ADVISORY IN EFFECT FROM 6 PM THURSDAY TO 6 PM PDT
FRIDAY...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A High Surf Advisory is currently in effect.

Hazardous surf conditions are forecast to occur Thursday afternoon
through Friday.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

CAZ105-106-110-112-113-191215-
Northern Humboldt Interior-Southern Humboldt Interior-
Northwestern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-
502 AM PDT Wed Oct 18 2017

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

CAZ102-107-108-111-191215-
Del Norte Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
502 AM PDT Wed Oct 18 2017

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Light snow is possible at elevations above 5500 feet Thursday night
through Friday night.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 6:16 AM PDTHigh Surf AdvisoryEKADel Norte, Humboldt, Mendocino60 hr
Oct 18, 2:37 PM PDTWind AdvisoryEKADel Norte, Humboldt26 hr

Nearby

Hazardous Seas Warnings in California, 2017Every hazardous seas warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.