Alert archive / California / Small Craft Advisories in 2010

Small Craft Advisory 71, NWS Eureka, CA

September 25, 2010

NWS Eureka, CA issued this small craft advisory at Sep 25, 2010, 2:08 AM PDT. It took effect at Sep 26, 2010, 6:00 AM PDT. It was in force for 3 days.

The area

The counties it named.

The facts

Issued
Sep 25, 2010, 2:08 AM PDT (09:08 UTC)
In effect from
Sep 26, 2010, 6:00 AM PDT
Expired
Sep 29, 2010, 2:36 PM PDT
In force
3 days
Issued by
NWS Eureka, CA

The text

As transmitted, in the capitals the NWS used until 2016.

854 
WHUS76 KEKA 250908
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
208 AM PDT SAT SEP 25 2010


PZZ450-455-470-475-260000-
/O.NEW.KEKA.SC.Y.0071.100926T1200Z-100927T2100Z/
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-
208 AM PDT SAT SEP 25 2010

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM SUNDAY TO 2 PM PDT
MONDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT FROM 5 AM SUNDAY TO 2 PM PDT
MONDAY. 

A LARGE NORTHWEST SWELL WILL BUILD LATE THIS AFTERNOON AND PEAK
AROUND 14 FEET AT 14 SECONDS SUNDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
14 follow-up statements
665 
WHUS76 KEKA 252115
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
215 PM PDT SAT SEP 25 2010

PZZ450-455-470-475-260515-
/O.EXT.KEKA.SC.Y.0071.100926T1300Z-100927T2100Z/
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-
215 PM PDT SAT SEP 25 2010

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 AM SUNDAY TO 2 PM
PDT MONDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT FROM 6 AM SUNDAY TO
2 PM PDT MONDAY. 

A LARGE NORTHWEST SWELL WILL BEGIN TO BUILD TONIGHT AND PEAK
AROUND 13 FEET AT 14 SECONDS SUNDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK MUCH
FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
936 
WHUS76 KEKA 260326
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
826 PM PDT SAT SEP 25 2010

PZZ450-455-470-475-261200-
/O.CON.KEKA.SC.Y.0071.100926T1300Z-100927T2100Z/
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-
826 PM PDT SAT SEP 25 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM SUNDAY TO
2 PM PDT MONDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM SUNDAY TO 2 PM
PDT MONDAY. 

A LARGE NORTHWEST SWELL WILL BEGIN TO BUILD TONIGHT AND PEAK
AROUND 13 FEET AT 14 SECONDS SUNDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
796 
WHUS76 KEKA 260833
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
133 AM PDT SUN SEP 26 2010

PZZ450-455-470-475-270000-
/O.CON.KEKA.SC.Y.0071.100926T1300Z-100927T2100Z/
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-
133 AM PDT SUN SEP 26 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THIS MORNING
TO 2 PM PDT MONDAY...

A LARGE NORTHWEST SWELL WILL BUILD TODAY AND PEAK AROUND 14 FEET
AT 15 SECONDS THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
048 
WHUS76 KEKA 262133
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
233 PM PDT SUN SEP 26 2010

PZZ450-455-470-475-270545-
/O.CON.KEKA.SC.Y.0071.000000T0000Z-100927T2100Z/
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-
233 PM PDT SUN SEP 26 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT MONDAY...

LARGE NW SWELL HAS PEAKED THIS AFTERNOON AT 14 FEET AND HAS NOW
BEGUN THE SLOW DECAY PROCESS. SUB ADVISORY SEAS ARE EXPECTED BY
MONDAY AFTERNOON. HOWEVER ANOTHER LONG PERIOD WAVE TRAIN WILL MOVE
INTO THE WATERS BY TUESDAY AND BE ACCOMPANIED BY INCREASING WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
620 
WHUS76 KEKA 270341
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
841 PM PDT SUN SEP 26 2010

PZZ450-455-470-475-271215-
/O.CON.KEKA.SC.Y.0071.000000T0000Z-100927T2100Z/
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-
841 PM PDT SUN SEP 26 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT MONDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT MONDAY.

NW SWELL HAS PEAKED AND IS NOW RUNNING 10 TO 12 FT AT 14 SECONDS.
THIS SWELL WILL CONTINUE TO SLOWLY SUBSIDE ON MONDAY. HOWEVER ANOTHER 
LONG PERIOD WAVE TRAIN WILL MOVE INTO THE WATERS BY TUESDAY AND
BE ACCOMPANIED BY INCREASING WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
630 
WHUS76 KEKA 270938
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
238 AM PDT MON SEP 27 2010

PZZ455-470-272300-
/O.EXT.KEKA.SC.Y.0071.000000T0000Z-100928T0000Z/
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
238 AM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

NW SWELL HAS PEAKED AROUND 10 TO 13 FT AT 14 SECONDS THIS
MORNING...AND WILL BEGIN TO SUBSIDE THROUGH THIS AFTERNOON. ANOTHER
LONG PERIOD NW WAVE TRAIN WILL MOVE INTO THE WATERS BY 
TUESDAY...ACCOMPANIED BY INCREASING WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$

PZZ475-272300-
/O.EXT.KEKA.SC.Y.0071.000000T0000Z-101001T0600Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
238 AM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM PDT THURSDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 11 PM PDT
THURSDAY. 

NW SWELL HAS PEAKED AROUND 10 TO 13 FT AT 14 SECONDS THIS
MORNING...AND WILL BEGIN TO SUBSIDE THROUGH THIS AFTERNOON. NORTH
WINDS WILL RISE TO ADVISORY LEVEL TODAY...AND WILL REMAIN IN THE
20 TO 25 KNOT RANGE THROUGH THURSDAY. ANOTHER LONG PERIOD NW WAVE
TRAIN WILL MOVE INTO THE WATERS ON TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$

PZZ450-272100-
/O.CON.KEKA.SC.Y.0071.000000T0000Z-100927T2100Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
238 AM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON. 

NW SWELL HAS PEAKED AROUND 10 TO 13 FT AT 14 SECONDS THIS
MORNING...AND WILL BEGIN TO SUBSIDE EARLY THIS AFTERNOON. ANOTHER
LONG PERIOD NW WAVE TRAIN WILL MOVE INTO THE WATERS BY 
TUESDAY...ACCOMPANIED BY INCREASING WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
910 
WHUS76 KEKA 272102
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
202 PM PDT MON SEP 27 2010

PZZ470-280600-
/O.CAN.KEKA.SC.Y.0071.000000T0000Z-100928T0000Z/
/O.NEW.KEKA.SC.Y.0072.100928T1400Z-100930T0600Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
202 PM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TUESDAY TO 11 PM PDT
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT FROM 7 AM TUESDAY TO 11 PM PDT
WEDNESDAY. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ455-280600-
/O.CAN.KEKA.SC.Y.0071.000000T0000Z-100928T0000Z/
/O.NEW.KEKA.SW.Y.0031.100928T1400Z-100929T1800Z/
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
202 PM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT FROM 7 AM
TUESDAY TO 11 AM PDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A SMALL CRAFT
ADVISORY FOR HAZARDOUS SEAS...WHICH IS IN EFFECT FROM 7 AM
TUESDAY TO 11 AM PDT WEDNESDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$

PZZ450-280600-
/O.EXP.KEKA.SC.Y.0071.000000T0000Z-100927T2100Z/
/O.NEW.KEKA.SW.Y.0031.100928T1400Z-100929T1800Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
202 PM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT FROM 7 AM
TUESDAY TO 11 AM PDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A SMALL CRAFT
ADVISORY FOR HAZARDOUS SEAS...WHICH IS IN EFFECT FROM 7 AM
TUESDAY TO 11 AM PDT WEDNESDAY. THE SMALL CRAFT ADVISORY IS NO
LONGER IN EFFECT. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$

PZZ475-280600-
/O.EXT.KEKA.SC.Y.0071.000000T0000Z-100929T1800Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
202 PM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT WEDNESDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 11 AM PDT
WEDNESDAY. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
846 
WHUS76 KEKA 280328
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
828 PM PDT MON SEP 27 2010

PZZ475-281200-
/O.CON.KEKA.SC.Y.0071.000000T0000Z-100929T1800Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
828 PM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
WEDNESDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
WEDNESDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$

PZZ470-281200-
/O.CON.KEKA.SC.Y.0072.100928T1400Z-100930T0600Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
828 PM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM TUESDAY TO
11 PM PDT WEDNESDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM TUESDAY TO
11 PM PDT WEDNESDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ450-455-281200-
/O.CON.KEKA.SW.Y.0031.100928T1400Z-100929T1800Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
828 PM PDT MON SEP 27 2010

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT FROM
7 AM TUESDAY TO 11 AM PDT WEDNESDAY...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT FROM
7 AM TUESDAY TO 11 AM PDT WEDNESDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
152 
WHUS76 KEKA 280934
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
234 AM PDT TUE SEP 28 2010

PZZ450-455-282345-
/O.CAN.KEKA.SW.Y.0031.100928T1400Z-100929T1800Z/
/O.EXB.KEKA.SC.Y.0071.100928T1400Z-100929T1800Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
234 AM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 11 AM
PDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT FROM 7 AM THIS MORNING TO 11 AM PDT
WEDNESDAY. THE SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS HAS BEEN
CANCELLED. 

A LONG PERIOD NW SWELL WILL MOVE INTO THE WATERS TODAY...PEAKING
NEAR 11 FT AT 15 SECONDS THIS AFTERNOON AND TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-282345-
/O.CON.KEKA.SC.Y.0071.000000T0000Z-100929T1800Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
234 AM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
WEDNESDAY...

MODERATE NORTH WINDS WILL CONTINUE TODAY THROUGH
WEDNESDAY...WITH AVERAGE SPEEDS OF 20 TO 25 KNOTS. IN ADDITION...A
LONG PERIOD NW SWELL WILL MOVE INTO THE WATERS TODAY...PEAKING
NEAR 12 FT AT 14 SECONDS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$

PZZ470-282345-
/O.CON.KEKA.SC.Y.0072.100928T1400Z-100930T0600Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
234 AM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 11 PM PDT WEDNESDAY...

MODERATE NORTH WINDS WILL CONTINUE TODAY THROUGH
WEDNESDAY...WITH AVERAGE SPEEDS OF 15 TO 25 KNOTS. IN ADDITION...A
LONG PERIOD NW SWELL WILL MOVE INTO THE WATERS TODAY...PEAKING
NEAR 12 FT AT 14 SECONDS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
264 
WHUS76 KEKA 281527
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
827 AM PDT TUE SEP 28 2010

PZZ450-455-475-282330-
/O.CON.KEKA.SC.Y.0071.000000T0000Z-100929T1800Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
827 AM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
WEDNESDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
WEDNESDAY. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-282330-
/O.CON.KEKA.SC.Y.0072.000000T0000Z-100930T0600Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
827 AM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
WEDNESDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
WEDNESDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
072 
WHUS76 KEKA 282107
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
207 PM PDT TUE SEP 28 2010

PZZ450-455-290600-
/O.CAN.KEKA.SC.Y.0071.000000T0000Z-100929T1800Z/
/O.NEW.KEKA.SW.Y.0032.100928T2107Z-100930T1200Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
207 PM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT UNTIL 5 AM
PDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A SMALL CRAFT
ADVISORY FOR HAZARDOUS SEAS...WHICH IS IN EFFECT UNTIL 5 AM PDT
THURSDAY.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$

PZZ470-290600-
/O.EXT.KEKA.SC.Y.0072.000000T0000Z-100930T1200Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
207 PM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 AM PDT THURSDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 5 AM PDT
THURSDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ475-290600-
/O.EXT.KEKA.SC.Y.0071.000000T0000Z-100930T1200Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
207 PM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 AM PDT THURSDAY...

THE SMALL CRAFT ADVISORY IS NOW IN EFFECT UNTIL 5 AM PDT
THURSDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
189 
WHUS76 KEKA 290324
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
824 PM PDT TUE SEP 28 2010

PZZ470-291200-
/O.CON.KEKA.SC.Y.0072.000000T0000Z-100930T1200Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
824 PM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT
THURSDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY.

A W SWELL IS CURRENTLY PEAKING AROUND 11 FT AT 14 SECONDS.
OTHERWISE...N WINDS UP TO 30 KT WILL CONTINUE TO PRODUCE STEEP
SHORT PERIOD SEAS THROUGH EARLY THURSDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ475-291200-
/O.CON.KEKA.SC.Y.0071.000000T0000Z-100930T1200Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
824 PM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT
THURSDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY.

A W SWELL IS CURRENTLY PEAKING AROUND 11 FT AT 14 SECONDS.
OTHERWISE...N WINDS UP TO 30 KT WILL CONTINUE TO PRODUCE STEEP
SHORT PERIOD SEAS THROUGH EARLY THURSDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-455-291200-
/O.CON.KEKA.SW.Y.0032.000000T0000Z-100930T1200Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
824 PM PDT TUE SEP 28 2010

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT
UNTIL 5 AM PDT THURSDAY...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT UNTIL
5 AM PDT THURSDAY.

A W SWELL IS CURRENTLY PEAKING AROUND 12 FT AT 14 SECONDS. THE
SWELL WILL REMAIN ELEVATED...BUT SLOWLY DECAY THROUGH WEDNESDAY NIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
182 
WHUS76 KEKA 291003
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
303 AM PDT WED SEP 29 2010

PZZ470-292330-
/O.CON.KEKA.SC.Y.0072.000000T0000Z-100930T1200Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
303 AM PDT WED SEP 29 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT
THURSDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY.

A W SWELL IS CURRENTLY PEAKING AROUND 11 FT AT 14 SECONDS.
OTHERWISE...N WINDS UP TO 25 KT WILL CONTINUE TO PRODUCE STEEP
SHORT PERIOD SEAS THROUGH EARLY THURSDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ475-292330-
/O.CON.KEKA.SC.Y.0071.000000T0000Z-100930T1200Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
303 AM PDT WED SEP 29 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT
THURSDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY.

A W SWELL IS CURRENTLY PEAKING AROUND 11 FT AT 14 SECONDS.
OTHERWISE...N WINDS UP TO 30 KT WILL CONTINUE TO PRODUCE STEEP
SHORT PERIOD SEAS THROUGH EARLY THURSDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-455-292330-
/O.CON.KEKA.SW.Y.0032.000000T0000Z-100930T1200Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
303 AM PDT WED SEP 29 2010

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT
UNTIL 5 AM PDT THURSDAY...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS REMAINS IN EFFECT UNTIL
5 AM PDT THURSDAY. 

A W SWELL IS CURRENTLY PEAKING AROUND 12 FT AT 14 SECONDS. THE
SWELL WILL REMAIN ELEVATED...BUT SLOWLY DECAY THROUGH WEDNESDAY
NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT WAVES ARE
EXPECTED TO BE HAZARDOUS TO SMALL CRAFT. MARINERS SHOULD AVOID
SHOALING AREAS. LONG PERIOD SWELL CAN SHARPEN INTO LARGE BREAKING
WAVES IN SHOALING AREAS. IT IS NOT UNUSUAL FOR WAVES TO BREAK
MUCH FARTHER FROM SHOALING AREAS THAN IS NORMALLY EXPERIENCED.
REMEMBER...BREAKING WAVES CAN EASILY CAPSIZE EVEN LARGER VESSELS.

&&

$$
633 
WHUS76 KEKA 292136
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
236 PM PDT WED SEP 29 2010

PZZ475-292245-
/O.CAN.KEKA.SC.Y.0071.000000T0000Z-100930T1200Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
236 PM PDT WED SEP 29 2010

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS CANCELLED THE SMALL
CRAFT ADVISORY. 

CONDITIONS HAVE FALLEN BELOW ADVISORY LEVELS BUT WILL LIKELY BE
BACK ON FRIDAY.

$$

PZZ450-455-292245-
/O.CAN.KEKA.SW.Y.0032.000000T0000Z-100930T1200Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
236 PM PDT WED SEP 29 2010

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS CANCELLED THE SMALL
CRAFT ADVISORY FOR HAZARDOUS SEAS. 

CONDITIONS HAVE FALLEN BELOW ADVISORY LEVELS BUT WILL LIKELY BE
BACK ON FRIDAY.

$$

PZZ470-301200-
/O.CON.KEKA.SC.Y.0072.000000T0000Z-100930T1200Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
236 PM PDT WED SEP 29 2010

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT
THURSDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY.

THE PRESSURE GRADIENT REMAINS TIGHT OVER OUT WATERS NORTH OF CAPE
MENDOCINO THIS EVENING. AS SUCH...WINDS REMAIN FRESH WITH NEAR
GALE GUSTS. THIS COMBINED WITH BACKGROUND SWELL IS CAUSING SEAS IN
THE RANGE OF 9 TO 11 FT AT 12 SECONDS. AS THE PRESSURE GRADIENT
EASES OVERNIGHT AND THE SWELL DECAYS...CONDITIONS WILL FALL BELOW
ADVISORY LEVEL. FOR NOW...CONDITIONS REMAIN AT THE HIGH END OF THE
SMALL CRAFT SCALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Sep 24, 3:30 PM PDT, 10 hours 38 minutes earlier.

Area forecast discussion, Sep 24, 3:30 PM PDT, 10 hours 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
330 PM PDT FRI SEP 24 2010

.SYNOPSIS...STRONG HIGH PRESSURE WILL BUILD INTO THE REGION FROM
THE SOUTH OVER THE NEXT SEVERAL DAYS...RESULTING IN SHARPLY
WARMER TEMPERATURES FOR INLAND LOCATIONS. COASTAL LOCATIONS WILL
ALSO EXPERIENCE WARMER AFTERNOONS...WITH A MIX OF SUNSHINE AND
CLOUDS.

&&

.DISCUSSION...BIG BUBBLE NO TROUBLE...AS HIGH PRESSURE ALOFT CONTINUES
TO BUILD OVER THE REGION. ONCE AGAIN MAIN FORECAST CHALLENGES WILL
CONTINUE TO BE HOW THE SMALL CHUNK OF STRATUS OFF THE NORTH COAST
AFFECTS THE LITTORAL ZONE IN THE SHORT TERM AND THE MARINE LAYER
EVOLVES OVER THE NEXT FEW DAYS. THIS AFTERNOONS SAT IMAGERY SHOWS A
SMALL RIBBON OF STRATUS HUGGING THE COAST FROM CAPE MENDO UP TO
ABOUT TRINIDAD BUT IS STRUGGLING TO HOLD TOGETHER.  DO EXPECT
ANOTHER ROUND OF LIGHT EAST WINDS TONIGHT WHICH MAY PUSH IT OFF THE
COAST LIKE LAST NIGHT.  HI RES MODELS DONT HAVE A GREAT HANDLE ON
THIS SO NOT MUCH HELP THERE. EVEN IF IT HOLDS OVERNIGHT OR COMES
BACK IN EARLIER TOMORROW STILL EXPECT MUCH OF TOMORROW TO BE FAIRLY
NICE. THE MARINE LAYER SHOULD REMAIN FAIRLY SHALLOW IN DEPTH DUE TO
THE COMPRESSING ALOFT BUT ITS JUST A MATTER OF TIME BEFORE IT REALLY
BEGINS TO FILL IN AND BECOMES A MORE PROMINENT FEATURE IMPACTING THE
COASTAL ZONES (MON ?) THE OFFSHORE FLOW AT NIGHT AND IN THE MORNING
JUST ISNT STRONG ENUF TO PREVENT IT FROM BEING A FACTOR.  ELSEWHERE
WEATHER SHOULD REMAIN WARM AND DRY. A WEAK SHORTWAVE WILL TRY TO
MOVER THROUGH THE RIDGE ON SATURDAY BUT WONT HAVE MUCH OF AN AFFECT
ON THE DAY TO DAY WEATHER. A FEW CUMULUS MAY DEVELOP OVER THE RIDGES
AS LAPSE RATES STEEPEN IN ASSOCIATION WITH THIS FEATURE...BUT LITTLE
ELSE OF NOTE. BY EARLY NEXT WEEK...THE CENTER OF THE UPPER LEVEL
HIGH WILL BE POSITIONED OVERHEAD BRINGING ABOVE NORMAL TEMPERATURES
TO ALL AREAS...WITH THE WARMEST INLAND VALLEYS LIKELY TO REACH OR
EXCEED THE CENTURY MARK. WEAK TO MODERATE OFFSHORE FLOW IS LIKELY TO
RESULT IN WARM AFTERNOONS ALONG THE COAST TOO...BUT THE MARINE
INVERSION WILL HAVE TO BE WATCHED. MORE THAN LIKELY...GIVEN THE
STRENGTH OF THE RIDGE...PATCHY/AREAS OF NIGHT AND MORNING FOG WITH
AFTERNOON SUNSHINE CAN BE EXPECTED. ALL POPS ZERO THROUGH THE
FORECAST.

&&

.AVIATION...A SLIVER OF STRATUS JUST OFF HUMBOLDT BAY MAY BRING
BRIEF PERIODS OF MVFR OR IFR LOW CLOUD AND FOG TO KACV THIS EVENING
OTHERWISE VFR CONDITIONS WILL CONTINUE ACROSS THE REGION. WITH
ELEVATED SURF ALONG THE COAST THERE IS THE CHANCE OF SOME HORIZONTAL
VSBY CONCERNS DUE TO HAZE FROM SEA SPRAY. IF THIS OCCURS...IT WOULD
BE IN THE EARLY EVENING. OTHERWISE LOOK FOR VFR TO DOMINATE THE NEXT
24 HOURS WITH THE DRY AIRMASS OVER THE LAND AREAS.  BFG

&&

.MARINE...LONG PERIOD NW SWELL LOOKS TO HAVE PEAKED THIS AFTERNOON
AROUND 10 FT AT 14 SEC. THIS SWELL TRAIN WILL DIMINISH QUICKLY THIS
EVENING AND OVERNIGHT...LEAVING A 5 TO 6 FT SWELL FOR SAT. SEAS ARE
EXPECTED TO BUILD AGAIN ON SUNDAY AS SWELL FROM A NORTH PACIFIC LOW
ARRIVES ON THE NORTH COAST. ELEVATED SWELL IS EXPECTED TO REMAIN
THROUGH MIDWEEK. WINDS WILL REMAIN LIGHT TO MODERATE THROUGH THE
WEEKEND AND THEN INCREASE EARLY NEXT WEEK AS A SYSTEM APPROACHES.
MODELS SEEM TO REMAIN IN FAIR AGREEMENT THROUGH MONDAY WITH THE
SYNOPTIC PATTERN. BY TUE AND WED TROUGH TIMING BECOME AMBIGUOUS.
THIS MEANS THE WIND FORECAST FOR THE AREA MIDWEEK IS LOW CONFDC.
SOME MODELS DESIRED A LIGHT SW FLOW BY WED...BUT WITH THE GEFS MEAN
SLOWING THE TROUGH PROGRESS DECIDED TO TAKE THE DGEX NORTHERLY FLOW
INTO MIDWEEK. WINDS WILL LIKELY NEED TWEAKING AS THE TROUGH TIMING
BECOME BETTER DEFINED. BFG

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.

NORTHWEST CALIFORNIA COASTAL WATERS...SMALL CRAFT ADVISORY FROM 6 AM
THIS MORNING TO 9 PM PDT THIS EVENING PZZ450-455-470-475.

&&

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA
Hazardous weather outlook, Sep 24, 5:07 PM PDT, 9 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EUREKA CA
507 PM PDT FRI SEP 24 2010

CAZ003-004-076-251615-
NORTH COAST INTERIOR-UPPER TRINITY RIVER-MENDOCINO INTERIOR-
507 PM PDT FRI SEP 24 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

CAZ001-002-251615-
REDWOOD COAST-MENDOCINO COAST-
507 PM PDT FRI SEP 24 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA.

.DAY ONE...TONIGHT.

LARGE SURF COMING FROM A STORM IN THE GULF OF ALASKA WILL BEGIN TO
DIMINISH TONIGHT. BREAKING WAVES UP TO AROUND 12 FEET IN HEIGHT WILL
AFFECT SOME BEACHES THROUGH TONIGHT...DIMINISHING TO 6 TO 8 FEET
BY SATURDAY. SURF WILL BE HIGHEST ON WEST TO NORTHWEST FACING BEACHES.

BECAUSE THESE ARE THE FIRST LARGE WAVE EVENTS OF THE
SEASON...EXTRA CARE IS RECOMMENDED FOR THOSE VISITING AREA
BEACHES. USE CAUTION IF WALKING ON JETTIES OR ALONG THE WATERS
EDGE AS WAVES MAY RISE UNEXPECTEDLY AND SWEEP YOU OFF YOUR FEET.
NEVER TURN YOUR BACK ON THE OCEAN.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

ON SUNDAY...WAVES FROM ANOTHER DISTANT STORM WILL MOVE INTO THE
WATERS...WITH BREAKING WAVES BUILDING TO 15 TO 20 FEET ON WEST TO
NORTHWEST BEACHES. THE LARGE AND DANGEROUS SURF WILL PERSIST
THROUGH MUCH OF NEXT WEEK.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

Nearby

Small Craft Advisories in California, 2010Every small craft advisory in 2010

Sources

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