Alert archive / California / High Surf Advisories in 2014

High Surf Advisory 6, NWS Eureka, CA

December 18, 2014

NWS Eureka, CA issued this high surf advisory at Dec 18, 2014, 3:56 AM PST. It took effect at Dec 19, 2014, 2:00 PM PST. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
Dec 18, 2014, 3:56 AM PST (11:56 UTC)
In effect from
Dec 19, 2014, 2:00 PM PST
Expired
Dec 21, 2014, 2:21 AM PST
In force
36 hr
Issued by
NWS Eureka, CA

The text

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

985 
WHUS46 KEKA 181156
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
356 AM PST THU DEC 18 2014

CAZ001-002-190000-
/O.NEW.KEKA.SU.Y.0006.141219T2200Z-141221T0200Z/
REDWOOD COAST-MENDOCINO COAST-
356 AM PST THU DEC 18 2014

...HIGH SURF ADVISORY IN EFFECT FROM 2 PM FRIDAY TO 6 PM PST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A HIGH SURF
ADVISORY...WHICH IS IN EFFECT FROM 2 PM FRIDAY TO 6 PM PST
SATURDAY. 

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND
  NORTHWEST FACING BEACHES.

* TIMING...SURF RAPIDLY BUILDING FRIDAY AFTERNOON INTO FRIDAY
  NIGHT. LARGE SURF WILL CONTINUE THROUGH SATURDAY.

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND WASHING
  OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE ERRATIC
  AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF ZONE AS THESE
  LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE INTO THE FRIGID
  AND TURBULENT OCEAN WATERS. MARINERS TRAVERSING THE BAR ARE
  URGED TO EXERCISE EXTREME CAUTION ESPECIALLY DURING MAX EBB
  WHICH IS PREDICTED TO OCCUR AROUND 1 PM...OR STAY IN PORT UNTIL
  THE THREAT SUBSIDES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$

RPA
11 follow-up statements
205 
WHUS46 KEKA 182306
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
306 PM PST THU DEC 18 2014

CAZ001-002-191130-
/O.CON.KEKA.SU.Y.0006.141219T2200Z-141221T0200Z/
REDWOOD COAST-MENDOCINO COAST-
306 PM PST THU DEC 18 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM FRIDAY TO 6 PM
PST SATURDAY...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND 
  NORTHWEST FACING BEACHES. 

* TIMING...SURF RAPIDLY BUILDING FRIDAY AFTERNOON INTO FRIDAY 
  NIGHT. LARGE SURF WILL CONTINUE THROUGH SATURDAY. 

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. MARINERS 
  TRAVERSING THE BAR ARE URGED TO EXERCISE EXTREME CAUTION 
  ESPECIALLY DURING MAX EBB WHICH IS PREDICTED TO OCCUR AROUND 1 
  PM...OR STAY IN PORT UNTIL THE THREAT SUBSIDES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$
465 
WHUS46 KEKA 191044
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
244 AM PST FRI DEC 19 2014

CAZ001-002-191845-
/O.CON.KEKA.SU.Y.0006.141219T2200Z-141221T0200Z/
REDWOOD COAST-MENDOCINO COAST-
244 AM PST FRI DEC 19 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 6 PM PST SATURDAY...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND 
  NORTHWEST FACING BEACHES. 

* TIMING...SURF RAPIDLY BUILDING THIS AFTERNOON INTO TONIGHT.
  THE LARGE SURF WILL CONTINUE INTO SATURDAY.

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. MARINERS 
  TRAVERSING THE BAR ARE URGED TO EXERCISE EXTREME CAUTION 
  ESPECIALLY DURING MAX EBB WHICH IS PREDICTED TO OCCUR AROUND 1 
  PM...OR STAY IN PORT UNTIL THE THREAT SUBSIDES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$
144 
WHUS46 KEKA 191231
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
431 AM PST FRI DEC 19 2014

CAZ001-192045-
/O.NEW.KEKA.CF.Y.0007.141219T1600Z-141219T1800Z/
/O.CON.KEKA.SU.Y.0006.141219T2200Z-141221T0200Z/
REDWOOD COAST-
431 AM PST FRI DEC 19 2014

...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 AM TO 10 AM PST THIS
MORNING...
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 6 PM PST SATURDAY...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND  
NORTHWEST FACING BEACHES.

* TIMING...SURF RAPIDLY BUILDING THIS AFTERNOON INTO TONIGHT. 
  THE LARGE SURF WILL CONTINUE INTO SATURDAY. 

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. MARINERS 
  TRAVERSING THE BAR ARE URGED TO EXERCISE EXTREME CAUTION 
  ESPECIALLY DURING MAX EBB WHICH IS PREDICTED TO OCCUR AROUND 1 
  PM...OR STAY IN PORT UNTIL THE THREAT SUBSIDES. 

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A COASTAL FLOOD
ADVISORY...WHICH IS IN EFFECT FROM 8 AM TO 10 AM PST THIS
MORNING. 

* COASTAL FLOODING...HIGH ASTRONOMICAL TIDES WILL CAUSE MINOR
  FLOODING IN LOW LYING AREAS ALONG THE REDWOOD COAST. THE WATER
  LEVEL IS EXPECTED TO PEAK BETWEEN 8.8 AND 8.9 FEET ABOVE MLLW
  AT THE NORTH SPIT TIDE GAUGE.

* TIMING...HIGH TIDE IS AT 9:01 AM AT THE HUMBOLDT BAY NORTH SPIT
  TIDE GAUGE. FLOODING MAY BEGIN AN HOUR BEFORE OR CONTINUE FOR AN
  HOUR OR TWO AFTER HIGH TIDE.

* IMPACTS...LOW LYING AREAS WILL EXPERIENCE MINOR FLOODING 
  INCLUDING...BUT NOT LIMITED TO...ROADWAYS IN KING SALMON AND 
  THE ARCATA BOTTOMS SUCH AS JACKSON RANCH ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$

CAZ002-192045-
/O.CON.KEKA.SU.Y.0006.141219T2200Z-141221T0200Z/
MENDOCINO COAST-
431 AM PST FRI DEC 19 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 6 PM PST SATURDAY...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND 
  NORTHWEST FACING BEACHES. 

* TIMING...SURF RAPIDLY BUILDING THIS AFTERNOON INTO TONIGHT. 
  THE LARGE SURF WILL CONTINUE INTO SATURDAY. 

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. MARINERS 
  TRAVERSING THE BAR ARE URGED TO EXERCISE EXTREME CAUTION 
  ESPECIALLY DURING MAX EBB WHICH IS PREDICTED TO OCCUR AROUND 1 
  PM...OR STAY IN PORT UNTIL THE THREAT SUBSIDES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$
441 
WHUS46 KEKA 191757
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
957 AM PST FRI DEC 19 2014

CAZ001-200200-
/O.EXT.KEKA.CF.Y.0007.000000T0000Z-141219T2100Z/
/O.CON.KEKA.SU.Y.0006.141219T2200Z-141221T0200Z/
REDWOOD COAST-
957 AM PST FRI DEC 19 2014

...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 1 PM THIS
AFTERNOON... 
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 6 PM SATURDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A HIGH SURF ADVISORY...
WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON UNTIL 6 PM SATURDAY
EVENING.

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND 
  NORTHWEST FACING BEACHES.

* TIMING...SURF RAPIDLY BUILDING THIS AFTERNOON INTO TONIGHT. 
  THE LARGE SURF WILL CONTINUE INTO SATURDAY. 

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. MARINERS 
  TRAVERSING THE BAR ARE URGED TO EXERCISE EXTREME CAUTION 
  ESPECIALLY DURING MAX EBB WHICH IS PREDICTED TO OCCUR AROUND 1 
  PM...OR STAY IN PORT UNTIL THE THREAT SUBSIDES. 

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A COASTAL FLOOD
ADVISORY...WHICH IS IN EFFECT UNTIL 1 PM THIS AFTERNOON.

* COASTAL FLOODING...HIGH ASTRONOMICAL TIDES WILL CAUSE MINOR
  FLOODING IN LOW LYING AREAS ALONG THE REDWOOD COAST. THE WATER
  LEVEL IS EXPECTED TO PEAK BETWEEN 8.8 AND 8.9 FEET AT THE NORTH
  SPIT TIDE GAUGE.

* TIMING...HIGH TIDE OCCURRED AT 901 AM AT THE HUMBOLDT BAY NORTH
  SPIT TIDE GAUGE. FLOODING MAY CONTINUE FOR TWO TO THREE HOURS
  AFTER HIGH TIDE.

* IMPACTS...LOW LYING AREAS WILL EXPERIENCE MINOR FLOODING 
  INCLUDING...BUT NOT LIMITED TO...ROADWAYS IN KING SALMON AND 
  THE ARCATA BOTTOMS SUCH AS JACKSON RANCH ROAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

$$

CAZ002-200200-
/O.CON.KEKA.SU.Y.0006.141219T2200Z-141221T0200Z/
MENDOCINO COAST-
957 AM PST FRI DEC 19 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 6 PM SATURDAY...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND 
  NORTHWEST FACING BEACHES. 

* TIMING...SURF RAPIDLY BUILDING THIS AFTERNOON INTO TONIGHT. 
  THE LARGE SURF WILL CONTINUE INTO SATURDAY. 

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. MARINERS 
  TRAVERSING THE BAR ARE URGED TO EXERCISE EXTREME CAUTION 
  ESPECIALLY DURING MAX EBB WHICH IS PREDICTED TO OCCUR AROUND 1 
  PM...OR STAY IN PORT UNTIL THE THREAT SUBSIDES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

$$
053 
WHUS46 KEKA 192055
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
1255 PM PST FRI DEC 19 2014

CAZ001-200500-
/O.EXP.KEKA.CF.Y.0007.000000T0000Z-141219T2100Z/
/O.CON.KEKA.SU.Y.0006.141219T2200Z-141221T0200Z/
REDWOOD COAST-
1255 PM PST FRI DEC 19 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM SATURDAY...
...COASTAL FLOOD ADVISORY WILL EXPIRE AT 1 PM THIS AFTERNOON...

A HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
UNTIL 6 PM SATURDAY EVENING.

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND  
  NORTHWEST FACING BEACHES.

* TIMING...SURF RAPIDLY BUILDING THIS AFTERNOON INTO TONIGHT. 
  THE LARGE SURF WILL CONTINUE INTO SATURDAY. 

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. MARINERS 
  TRAVERSING THE BAR ARE URGED TO EXERCISE EXTREME CAUTION 
  ESPECIALLY DURING MAX EBB WHICH IS PREDICTED TO OCCUR AROUND 1 
  PM...OR STAY IN PORT UNTIL THE THREAT SUBSIDES. 

THE COASTAL FLOOD ADVISORY WILL EXPIRE AT 1 PM THIS AFTERNOON.
MINOR COASTAL FLOODING IS POSSIBLE AGAIN SATURDAY MORNING...AND
ANOTHER ADVISORY MAY BE REQUIRED AT THAT TIME.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

$$

CAZ002-200500-
/O.CON.KEKA.SU.Y.0006.141219T2200Z-141221T0200Z/
MENDOCINO COAST-
1255 PM PST FRI DEC 19 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM SATURDAY...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND 
  NORTHWEST FACING BEACHES. 

* TIMING...SURF RAPIDLY BUILDING THIS AFTERNOON INTO TONIGHT. 
  THE LARGE SURF WILL CONTINUE INTO SATURDAY. 

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. MARINERS 
  TRAVERSING THE BAR ARE URGED TO EXERCISE EXTREME CAUTION 
  ESPECIALLY DURING MAX EBB WHICH IS PREDICTED TO OCCUR AROUND 1 
  PM...OR STAY IN PORT UNTIL THE THREAT SUBSIDES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

$$
826 
WHUS46 KEKA 200453
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
853 PM PST FRI DEC 19 2014

CAZ001-002-201300-
/O.CON.KEKA.SU.Y.0006.000000T0000Z-141221T0200Z/
REDWOOD COAST-MENDOCINO COAST-
853 PM PST FRI DEC 19 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST SATURDAY...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND 
  NORTHWEST FACING BEACHES. 

* TIMING...SURF RAPIDLY BUILDING THIS AFTERNOON INTO TONIGHT. 
  THE LARGE SURF WILL CONTINUE INTO SATURDAY. 

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. MARINERS 
  TRAVERSING THE BAR ARE URGED TO EXERCISE EXTREME CAUTION 
  ESPECIALLY DURING MAX EBB WHICH IS PREDICTED TO OCCUR AROUND 1 
  PM...OR STAY IN PORT UNTIL THE THREAT SUBSIDES. 

THE COASTAL FLOOD ADVISORY WILL EXPIRE AT 1 PM THIS AFTERNOON.
MINOR COASTAL FLOODING IS POSSIBLE AGAIN SATURDAY MORNING...AND
ANOTHER ADVISORY MAY BE REQUIRED AT THAT TIME.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

$$
589 
WHUS46 KEKA 201149
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
349 AM PST SAT DEC 20 2014

CAZ001-202000-
/O.NEW.KEKA.CF.Y.0008.141220T1600Z-141220T2000Z/
/O.CON.KEKA.SU.Y.0006.000000T0000Z-141221T0200Z/
REDWOOD COAST-
349 AM PST SAT DEC 20 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO
NOON PST TODAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A COASTAL FLOOD
ADVISORY...WHICH IS IN EFFECT FROM 8 AM THIS MORNING TO NOON PST
TODAY. 

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND
  NORTHWEST FACING BEACHES WILL SLOWLY DIMINISH TO 16 TO 21 FEET
  BY LATE AFTERNOON.

* TIMING...THE LARGE SURF WILL SLOWLY DIMINISH THROUGH THE DAY.

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND WASHING
  OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE ERRATIC
  AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF ZONE AS THESE
  LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE INTO THE FRIGID
  AND TURBULENT OCEAN WATERS. 

.COASTAL FLOOD....

* COASTAL FLOODING...HIGH ASTRONOMICAL TIDES WILL CAUSE MINOR
  FLOODING IN LOW LYING AREAS ALONG THE REDWOOD COAST. THE WATER
  LEVEL IS EXPECTED TO PEAK AROUND 9 FEET ABOVE MLLW AT THE NORTH
  SPIT TIDE GAUGE IN HUMBOLDT BAY AND NEARLY 1 FOOT ABOVE
  ASTRONOMICAL TIDES OUTSIDE THE BAY.

* TIMING...HIGH TIDE IS AT 9:43 AM AT THE HUMBOLDT BAY NORTH SPIT
  TIDE GAUGE AND UP TO AN HOUR EARLIER OUTSIDE THE BAY. FLOODING
  MAY BEGIN AN HOUR BEFORE AND CONTINUE FOR AN HOUR OR TWO AFTER
  HIGH TIDE.

* IMPACTS...LOW LYING AREAS AROUND HUMBOLDT BAY WILL EXPERIENCE
  MINOR FLOODING INCLUDING...BUT NOT LIMITED TO...ROADWAYS IN KING
  SALMON AND THE ARCATA BOTTOMS. 

  IN ADDITION HIGH SURF AND STRONG WINDS WILL PUSH WATER MUCH
  HIGHER UP THE EXPOSED BEACHES. THIS MAY IMPACT EXPOSED AREAS OF
  HIGHWAY 101.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$

CAZ002-202000-
/O.NEW.KEKA.CF.Y.0008.141220T1600Z-141220T1900Z/
/O.CON.KEKA.SU.Y.0006.000000T0000Z-141221T0200Z/
MENDOCINO COAST-
349 AM PST SAT DEC 20 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 AM TO 11 AM PST THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A COASTAL FLOOD
ADVISORY...WHICH IS IN EFFECT FROM 8 AM TO 11 AM PST THIS
MORNING. 



* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND
  NORTHWEST FACING BEACHES WILL SLOWLY DIMINISH TO 16 TO 21 FEET
  BY LATE AFTERNOON.

* TIMING...THE LARGE SURF WILL SLOWLY DIMINISH THROUGH THE DAY.

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND WASHING
  OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE ERRATIC
  AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF ZONE AS THESE
  LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE INTO THE FRIGID
  AND TURBULENT OCEAN WATERS.

.COASTAL FLOODING...

* COASTAL FLOODING...HIGH ASTRONOMICAL TIDES WILL CAUSE MINOR
  FLOODING IN LOW LYING AREAS ALONG THE REDWOOD COAST. THE WATER
  LEVEL IS EXPECTED TO PEAK NEARLY 1 FEET ABOVE THE ALREADY HIGH
  ASTRONOMICAL TIDES.

* TIMING...HIGH TIDE IS AT 8:55 AM AT NOYO HARBOR. FLOODING MAY
  BEGIN AN HOUR BEFORE OR CONTINUE FOR AN HOUR OR TWO AFTER HIGH
  TIDE.

* IMPACTS...LOW LYING AREAS WILL EXPERIENCE MINOR FLOODING. HIGH
  SURF WILL COMBINE WITH HIGH TIDES TO PUSH WATER MUCH HIGHER THAN
  NORMAL. THIS MAY IMPACT CAMPGROUNDS AND RURAL ROADS IN THE LOW
  LYING AREAS ALONG THE COAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$
350 
WHUS46 KEKA 201903
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
1103 AM PST SAT DEC 20 2014

CAZ002-210200-
/O.EXP.KEKA.CF.Y.0008.000000T0000Z-141220T1900Z/
/O.CON.KEKA.SU.Y.0006.000000T0000Z-141221T0200Z/
MENDOCINO COAST-
1103 AM PST SAT DEC 20 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING...
...COASTAL FLOOD ADVISORY HAS EXPIRED...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND  
NORTHWEST FACING BEACHES WILL SLOWLY DIMINISH TO 16 TO 21 FEET  
BY LATE AFTERNOON.

* TIMING...THE LARGE SURF WILL SLOWLY DIMINISH THROUGH THE DAY.

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. 

MINOR COASTAL FLOODING IS POSSIBLE AGAIN SUNDAY MORNING...AND
ANOTHER ADVISORY MAY BE REQUIRED AT THAT TIME.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$

CAZ001-210200-
/O.CON.KEKA.CF.Y.0008.000000T0000Z-141220T2000Z/
/O.CON.KEKA.SU.Y.0006.000000T0000Z-141221T0200Z/
REDWOOD COAST-
1103 AM PST SAT DEC 20 2014

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL NOON PST
TODAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND 
  NORTHWEST FACING BEACHES WILL SLOWLY DIMINISH TO 16 TO 21 FEET 
  BY LATE AFTERNOON. 

* TIMING...THE LARGE SURF WILL SLOWLY DIMINISH THROUGH THE DAY.

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. 

.COASTAL FLOOD....

* COASTAL FLOODING...HIGH ASTRONOMICAL TIDES WILL CAUSE MINOR 
  FLOODING IN LOW LYING AREAS ALONG THE REDWOOD COAST. THE WATER 
  LEVEL IS EXPECTED TO PEAK AROUND 9 FEET ABOVE MLLW AT THE 
  NORTH SPIT TIDE GAUGE IN HUMBOLDT BAY AND NEARLY 1 FOOT ABOVE 
  ASTRONOMICAL TIDES OUTSIDE THE BAY. 

* TIMING...HIGH TIDE IS AT 9:43 AM AT THE HUMBOLDT BAY NORTH 
  SPIT TIDE GAUGE AND UP TO AN HOUR EARLIER OUTSIDE THE BAY. 
  FLOODING MAY BEGIN AN HOUR BEFORE AND CONTINUE FOR AN HOUR OR 
  TWO AFTER HIGH TIDE. 

* IMPACTS...LOW LYING AREAS AROUND HUMBOLDT BAY WILL EXPERIENCE 
  MINOR FLOODING INCLUDING...BUT NOT LIMITED TO...ROADWAYS IN 
  KING SALMON AND THE ARCATA BOTTOMS. 

 IN ADDITION HIGH SURF AND STRONG WINDS WILL PUSH WATER MUCH  
HIGHER UP THE EXPOSED BEACHES. THIS MAY IMPACT EXPOSED AREAS OF  
HIGHWAY 101.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$
067 
WHUS46 KEKA 202001
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
1201 PM PST SAT DEC 20 2014


CAZ001-210200-
/O.EXP.KEKA.CF.Y.0008.000000T0000Z-141220T2000Z/
/O.CON.KEKA.SU.Y.0006.000000T0000Z-141221T0200Z/
REDWOOD COAST-
1201 PM PST SAT DEC 20 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING...
...COASTAL FLOOD ADVISORY HAS EXPIRED...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND  
NORTHWEST FACING BEACHES WILL SLOWLY DIMINISH TO 16 TO 21 FEET  
BY LATE AFTERNOON.

* TIMING...THE LARGE SURF WILL SLOWLY DIMINISH THROUGH THE DAY.

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. 

.COASTAL FLOOD....

MINOR COASTAL FLOODING IS POSSIBLE AGAIN SUNDAY MORNING...AND
ANOTHER ADVISORY MAY BE REQUIRED AT THAT TIME.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$

CAZ002-210200-
/O.CON.KEKA.SU.Y.0006.000000T0000Z-141221T0200Z/
MENDOCINO COAST-
1201 PM PST SAT DEC 20 2014

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND 
  NORTHWEST FACING BEACHES WILL SLOWLY DIMINISH TO 16 TO 21 FEET 
  BY LATE AFTERNOON.

* TIMING...THE LARGE SURF WILL SLOWLY DIMINISH THROUGH THE DAY.

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. 

MINOR COASTAL FLOODING IS POSSIBLE AGAIN SUNDAY MORNING...AND
ANOTHER ADVISORY MAY BE REQUIRED AT THAT TIME.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$
187 
WHUS46 KEKA 210156
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
556 PM PST SAT DEC 20 2014

CAZ001-002-211200-
/O.EXT.KEKA.SU.Y.0006.000000T0000Z-141221T1200Z/
REDWOOD COAST-MENDOCINO COAST-
556 PM PST SAT DEC 20 2014

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 4 AM PST SUNDAY...

* WAVES AND SURF...BREAKING WAVES 22 TO 25 FEET ALONG WEST AND
  NORTHWEST FACING BEACHES WILL SLOWLY DIMINISH TO 16 TO 21 FEET
  BY SUNDAY MORNING.

* TIMING...THE LARGE SURF WILL SLOWLY DIMINISH THROUGH EARLY
  SUNDAY.

* IMPACTS...LARGE BREAKING WAVES ALONG THE COAST WILL LEAD TO 
  INCREASED WAVE RUN-UP ON BEACHES WITH WAVES TOPPING AND 
  WASHING OVER LARGE ROCKS AND JETTIES. THESE LARGE WAVES CAN BE 
  ERRATIC AND UNPREDICTABLE. USE EXTRA CAUTION NEAR THE SURF 
  ZONE AS THESE LARGE WAVES WILL BE CAPABLE OF SWEEPING PEOPLE 
  INTO THE FRIGID AND TURBULENT OCEAN WATERS. 

.COASTAL FLOOD....

MINOR COASTAL FLOODING IS POSSIBLE AGAIN SUNDAY MORNING...AND
ANOTHER ADVISORY MAY BE REQUIRED AT THAT TIME.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$
825 
WHUS46 KEKA 211021
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
221 AM PST SUN DEC 21 2014

CAZ001-002-211130-
/O.CAN.KEKA.SU.Y.0006.000000T0000Z-141221T1200Z/
REDWOOD COAST-MENDOCINO COAST-
221 AM PST SUN DEC 21 2014

...HIGH SURF ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS CANCELLED THE HIGH
SURF ADVISORY. 

BREAKERS WILL CONTINUE TO SUBSIDE TODAY.

$$

What forecasters said that day

The local office's own words before this high surf 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 high surf advisory went out at Dec 17, 3:54 PM PST, 12 hours 2 minutes earlier.

Area forecast discussion, Dec 17, 3:54 PM PST, 12 hours 2 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
354 PM PST WED DEC 17 2014

.SYNOPSIS...PERSISTING RAIN SHOWERS WILL DIMINISH OVERNIGHT. THEN
BUILDING HIGH PRESSURE WILL RESULT IN A MOSTLY DRY DAY ON
THURSDAY. AN APPROACHING COLD FRONT WILL BRING THE NEXT
OPPORTUNITY FOR RAIN LATE THURSDAY NIGHT THROUGH FRIDAY MORNING.

&&

.SHORT TERM...(TODAY THRU THURSDAY) A WEAK DISTURBANCE HAS PROLONGED
VERY LIGHT SHOWER ACTIVITY TODAY FOR MOSTLY AREAS NORTH OF CAPE
MENDOCINO. THE 23Z RADAR IMAGERY SHOWS LIGHT TO MODERATE RAIN
OFFSHORE MAKING ITS WAY ONSHORE. THE APPROACHING SURFACE LOW WILL
BRING ONE LAST SHOT OF RAIN THIS EVENING AS IT SLIDES PAST THE NW
CALIFORNIA COAST. ADDITIONAL RAINFALL THROUGH TONIGHT WILL BE ON
THE LIGHTER SIDE AMOUNTING TO AROUND ONE QUARTER INCH. SNOWFALL
WITH THE LINGERING SHOWERS WILL NOT POSE A MAJOR CONCERN THIS
EVENING AS PRECIPITATION WILL BE LIGHT AND SNOW LEVELS ARE
FORECAST TO GRADUALLY INCREASE OVERNIGHT.

500MB HEIGHTS WILL GRADUALLY BUILD OVERNIGHT INTO THURSDAY AS A WEAK
UPPER LEVEL RIDGE SHIFTS OVER THE WEST COAST OF THE UNITED STATES.
THIS SHOULD RESULT IN MOSTLY DRY WEATHER EARLY IN THE DAY, HOWEVER,
MOISTURE STREAMING OVER THE RIDGE COULD RESULT SOME LIGHT SPRINKLES
THROUGH THE DAY. THEN, A BOUNDARY ASSOCIATED WITH AN UPPER LEVEL LOW
LOCATED OFF OF THE COAST OF BRITISH COLUMBIA WILL APPROACH NORTHWEST
CALIFORNIA THURSDAY EVENING. RECENT MODEL RUNS HAVE SPED UP THE
ARRIVAL OF THE RAIN TO THURSDAY EVENING BUT STILL REMAIN IN DECENT
AGREEMENT WITH ONE ANOTHER. RAINFALL CAN BE HEAVY AT TIMES WITH MOST
AREAS LOOKING AT 0.75 INCHES OVERNIGHT AND HIGHER TERRAIN ACROSS
FAVORABLE AREAS GETTING AS MUCH AS 1.5 INCHES. SNOWLEVELS WILL
REMAIN AROUND 5000 FEET AS MOST OF THE PRECIPITATION FALLS BUT
WILL DECREASE INTO THE MORNING. FLURRIES MAY BE OBSERVED AT SOME
MOUNTAIN PASSES HOWEVER SNOWFALL SHOULD MOSTLY BE RESTRICTED TO
THE TRINITY ALPS WITH THE PASS ON HIGHWAY 3 SOUTH OF CALLAHAN
SEEING POTENTIAL IMPACTS.

.LONGTERM...(FRIDAY THRU WED) SHOWERS WILL DIMINISH FRIDAY RESULTING
IN A MOSTLY DRY DAY HOWEVER THE WET PATTERN CONTINUES SATURDAY AND
AGAIN SUNDAY AS FLOW BECOMES MORE ZONAL. THE LONGWAVE MODEL HINTS
TOWARDS THE DEVELOPMENT OF A LONGWAVE RIDGE ACROSS THE WESTERN
UNITED STATES THIS WEEKEND. I FEAR MODELS MAY POTENTIALLY BE OVER
DOING THE PRECIPITATION FOR THIS WEEKEND BUT MADE LITTLE TO NO
CHANGES DUE TO UNCERTAINTY. STRONGER RIDGING WILL BUILD OVER THE
EASTERN PACIFIC EARLY NEXT WEEK BRINGING WARMER TEMPERATURES AND
DRIER WEATHER THROUGH THE MIDDLE OF THE WEEK. BOTH THE GFS AND ECMWF
HINT AT ANOTHER TROUGH FOR LATE NEXT WEEK BUT DIFFER IN THE
STRENGTH. AGAIN FEW CHANGES WERE MADE TO THE LONG TERM AND CLIMO
POPS WERE USED FOR THE TAIL END OF THE FORECAST. \KML

&&

.AVIATION...A WEAKENING LOW PRESSURE SYSTEM OFFSHORE WILL PROVIDE
MORE PERIODS OF LIGHT TO MODERATE RAIN AS WELL AS OCCASIONAL MVFR
CONDITIONS TONIGHT. LINGERING MOIST AIR WILL MAKE IFR CIGS AND VSBYS
POSSIBLE AT UKIAH AND OTHER VALLEYS IN THE INTERIOR BY EARLY THU
MORNING. CONDITIONS SHOULD IMPROVE TO VFR THROUGH THE DAY ON THU.

&&

.MARINE...WINDS HAVE TURNED SOUTHERLY IN ADVANCE OF A WEAKENING LOW
APPROACHING THE WATERS. SHIP REPORTS SHOWED WINDS AROUND 15-20 KT
WHICH SEEMED TO MATCH BETTER WITH THE GFS...HI-RES-NMM AND HRRR. THE
SREF AND NAM12 LOOKED UNDERDONE. BOTH THE HIRES-NMM AND HRRR SHOW A
RIBBON OF 20-25KT IN THE OUTER WATERS AND AROUND CAPE MENDO THROUGH
THIS EVENING. ALSO SEAS HAVE BEEN RUNNING 2 TO 3 FT ABOVE THE MODEL
GUIDANCE THROUGH THE DAY. MOST OF THIS WAVE ENERGY HAS BEEN COMING
FROM 280-290 DEGREES. THUS EXTENDED THE SMALL CRAFT ADVISORY THROUGH
TONIGHT. THE MODELS CONTINUE TO SHOW THE WESTERLY SWELL TRENDING
DOWNWARD ON THURSDAY INTO THURSDAY NIGHT AS A STRONGER FRONTAL
SYSTEM APPROACHES THE WATERS THROUGH THE DAY. SOUTHERLY WINDS WILL
START TO RAMP BACK UP TO SMALL CRAFT LEVELS OF 20-25 KT BY THURSDAY
EVENING. THE MODELS TEND TO BE TOO SLOW WITH WINDS INCREASING...SO
THE ADVISORY HAS BEEN EXTENDED INTO THU AND THU NIGHT. THE FRONT
WILL MOVE INLAND BY FRI MORNING LEAVING MUCH LIGHTER WINDS IN ITS
WAKE.

A HURRICANE FORCE LOW CURRENTLY SOUTH OF THE ALEUTIAN ISLANDS WILL
PRODUCE A LARGE SWELL WHICH WILL PROPAGATE TOWARD THE NORCAL COAST
AND ARRIVE ON FRIDAY. ASCAT PASS SHOWED 50-55KT IN THE SOUTHERN HALF
OF THE LOW. THIS AGREES QUITE WELL WITH THE WAVE WATCH III WINDS.
CONFIDENCE IS INCREASING A LARGE WESTERLY SWELL WILL HIT THE
NORTHERN CAL COAST ON FRI. THE EXACT MAGNITUDE OF THE SWELL WILL BE
MUCH MORE CERTAIN WHEN THE SWELL GOES BY THE OFFSHORE BUOYS; BUOY #2
250NM WEST OF BLANCO WHICH IS THE ONLY ONE LEFT.

FOR NOW HAVE STAYED CLOSED TO THE MODEL GUIDANCE WHICH HAS THE SWELL
PEAKING AROUND 17 TO 19 FT AT 18 SECONDS FRIDAY NIGHT. BREAKERS
AROUND 25 FEET WILL BE POSSIBLE FRIDAY NIGHT. JASON-2 ALTIMETRY
MEASUREMENTS THUS FAR HAS CAPTURED ONLY THE SIDES OF THE WAVE MAX.
HOPEFULLY WE GET A PASS RIGHT OVER THE CENTER TO CONFIRM THE WAVE
HEIGHTS IN THE NEXT 12 HOURS. A MARINE WEATHER STATEMENT HAS BEEN
ISSUED TO CALL ATTENTION TO THIS LARGE SWELL EVENT WHICH SHOULD
PRODUCE HAZARDOUS SURF CONDITIONS.

IN ADDITION...FORERUNNERS WILL BRING A POTENTIAL FOR SNEAKER WAVES
DURING THE DAY ON FRIDAY. LOOKING AT THE SEA STATE SPECTRUM THERE
WILL BE ANOTHER WESTERLY WAVE GROUP PRESENT...8-10 FT AROUND 13
SECONDS ON FRIDAY. THE SHORTER PERIOD SOUTHERLY WAVE GROUP SHOULD BE
NEGLIGIBLE. CONFIDENCE IT NOT HIGH THAT ALL OF THE VARIABLES WILL
COME TOGETHER HERE FOR THIS TO BE A HIGH END THREAT FOR SNEAKER
WAVES.

THE SWELL WILL SUBSIDE OVER THE WEEKEND. A WARM FRONT WILL APPROACH
THE WATERS ON SATURDAY INTO SATURDAY NIGHT BRINGING ANOTHER PERIOD
OF SMALL CRAFT ADVISORY SOUTHERLY WINDS.

&&

.COASTAL FLOOD...PERSISTENT SOUTHERLY WINDS CONTINUE TO KEEP WATER
LEVELS ABOVE THE ASTRONOMICAL TIDES BY 1 TO 2 FT. THE ASTRONOMICAL
TIDES ARE NEARLY 8 FT IN HUMBOLDT BAY ON SATURDAY AND 8.1 FT ON
SUNDAY. DEPENDING ON HOW PERSISTENT THE SOUTHERLY WINDS ARE...THIS
COULD CAUSE SOME COASTAL FLOODING IN THE LOW LYING AREAS AROUND
HUMBOLDT BAY. IN ADDITION, WITH THESE HIGH WATER LEVELS THE HIGH
SURF MAY PUSH WATER UP HIGHER IN EXPOSED COASTAL AREAS. MKK

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 3 PM PST THURSDAY FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 3 PM PST FRIDAY FOR PZZ470-475.

&&

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
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HTTP://WWW.TWITTER.COM/NWSEUREKA
Hazardous weather outlook, Dec 17, 7:35 AM PST, 20 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EUREKA CA
735 AM PST WED DEC 17 2014

CAZ001-002-181545-
REDWOOD COAST-MENDOCINO COAST-
735 AM PST WED DEC 17 2014

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.

ASTRONOMICAL TIDES ARE 7.9 FT IN HUMBOLDT BAY ON SATURDAY AND 8.1
FT ON SUNDAY. PERSISTENT SOUTHERLY WINDS ARE KEEPING TIDES 1 TO 2
FEET HIGHER AND THIS MAY CAUSE COASTAL FLOODING IN THE LOW LYING
AREAS AROUND HUMBOLDT BAY.

HIGH SURF IS EXPECTED FRIDAY AFTERNOON AND FRIDAY NIGHT. BREAKER
HEIGHTS ARE EXPECTED TO BE 20 TO 25 FEET.

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

CAZ003-076-181545-
NORTH COAST INTERIOR-MENDOCINO INTERIOR-
735 AM PST WED DEC 17 2014

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.

CAZ004-181545-
UPPER TRINITY RIVER-
735 AM PST WED DEC 17 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

ADDITIONAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED ABOVE
ELEVATIONS OF 4500 FEET ACROSS THE HIGHEST PASSES OF TRINITY
COUNTY.

.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.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 3:16 AM PSTGale WarningEKA17 hr
Dec 18, 3:16 AM PSTHazardous Seas WatchEKA24 hr

Nearby

High Surf Advisories in California, 2014Every high surf advisory in 2014

Sources

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