Hazardous Seas Warning 9, NWS Eureka, CA

660 
WHUS76 KEKA 202221
MWWEKA

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
321 PM PDT WED JUL 20 2011

PZZ470-211200-
/O.CAN.KEKA.SE.W.0009.000000T0000Z-110721T1200Z/
/O.UPG.KEKA.SC.Y.0067.000000T0000Z-110723T2200Z/
/O.EXA.KEKA.GL.W.0025.110721T0400Z-110722T1000Z/
PT ST GEORGE TO CAPE MENDOCINO 10 TO 60 NM-
321 PM PDT WED JUL 20 2011

...GALE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PDT
FRIDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM PDT
FRIDAY. THE HAZARDOUS SEAS WARNING HAS BEEN CANCELLED. THE SMALL
CRAFT ADVISORY IS NO LONGER IN EFFECT. 

* WINDS...N 15 TO 25 KT...INCREASING TO 20 TO 30 THIS EVENING 
  WITH A FEW GUSTS TO 35 KT OVERNIGHT. 

* SEAS...STEEP...SHORT PERIOD SEAS WILL BUILD TO 8 TO 10 FT AT 
  8 SECONDS THIS MORNING AND PEAK AROUND 10 TO 12 FT AT 8 
  SECONDS TONIGHT.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ475-211200-
/O.CAN.KEKA.SE.W.0009.000000T0000Z-110721T0400Z/
/O.CAN.KEKA.SC.Y.0067.000000T0000Z-110721T0400Z/
/O.CON.KEKA.GL.W.0025.110721T0400Z-110722T1000Z/
CAPE MENDOCINO TO PT ARENA 10 TO 60 NM-
321 PM PDT WED JUL 20 2011

...GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM
PDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS CANCELLED THE
HAZARDOUS SEAS WARNING. THE SMALL CRAFT ADVISORY HAS BEEN
CANCELLED. A GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 3 AM PDT FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ450-455-211200-
/O.EXT.KEKA.SC.Y.0067.000000T0000Z-110722T0600Z/
PT ST GEORGE TO CAPE MENDOCINO OUT 10 NM-
CAPE MENDOCINO TO PT ARENA OUT 10 NM-
321 PM PDT WED JUL 20 2011

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

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

* WINDS...N 10 TO 20 KT INCREASING TO 15 TO 25 KT WITH GUSTS TO 
  30 KT THIS AFTERNOON. 

* SEAS...STEEP...SHORT PERIOD SEAS WILL BUILD TO 5 TO 7 FT THIS 
  AFTERNOON AND PEAK AROUND 8 TO 10 FT AT 9 SECONDS OVERNIGHT. 

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.

&&

$$


HTTP://WWW.WEATHER.GOV/EUREKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
230 PM PDT TUE JUL 19 2011

.SYNOPSIS...HIGH PRESSURE ACROSS THE E PACIFIC WILL HELP MOVE LOW
PRESSURE OUT OF NW CALIFORNIA TODAY. TEMPERATURES WILL BEGIN TO
REBOUND ACROSS THE INTERIOR BRINGING A DRYING AND WARMING TREND
THROUGH MUCH OF THE WEEK.

&&

.DISCUSSION...YESTERDAYS' UPPER LOW NOW WELL EAST OF CALIFORNIA
AND HEIGHTS AND THICKNESS VALUES ON THE RISE. CLASSIC POST TROUGH
WEATHER ALONG THE COAST TODAY WITH CLEAR SKIES OVER THE COASTAL
WATERS AND SOME STRATO CU FORMING ALONG THE COAST AND COASTAL
MOUNTAINS.  NO SHOWER ACTIVITY NOTED THIS AFTERNOON AND BY EVENING
MUCH OF THE CLOUD COVER SHOULD DISSIPATE. EVEN AT THE COAST...WITH
PLENTY OF LOW AND MID LEVEL MIXING...IT MAY TAKE SOME TIME BEFORE
THE COASTAL LOW CLOUDS REFORM AND RETURN. LITTLE WEATHER EXPECTED
OVER THE NEXT 4-5 DAYS AS HEIGHTS RISE TO AND REMAIN AROUND
580. OTHER THEN SOME BOUTS OF MOUNTAIN CUMULUS...STABILITY AND
MOISTURE LOOKS UNFAVORABLE FOR ANY TSTORM ACTIVITY ACROSS THE
INTERIOR. COAST SIDE A RETURN TO THE PATTERN OF MORNING LOW CLOUDS
AND PATCHY FOG IS LIKELY WITH AFTERNOONS BEING MAINLY SUNNY AND
REACHING NORMAL HIGHS (61 - 65). THE NEXT BEST CHANCE OF RAIN MAY
NOW TURN TO MON...SEE EXTENDED DISCUSSION BELOW.

EXTENDED...WELL AFTER SOME RUN TO RUN CONSISTENCY ON BRINGING BACK
HIGHER HEIGHTS AND A MORE SUMMER TYPE PATTERN LATEST 00Z EURO AND
12Z GFS NOW SHOWING YET ANOTHER STRONG OPEN WAVE TROUGH OR EVEN
LOW PRESSURE SYSTEM ATTACKING THE NORTH COAST AGAIN EARLY NEXT
WEEK (LATE SUN - TUE). GIVEN THE WEATHER PATTERN SO FAR THIS SUMMER
THIS WOULD BE ON PAR AND LOOKS VERY SIMILAR TO THE RECENT LOW WE
JUST EXPERIENCED LATE SUN AND MON WHICH BROUGHT RAINFALL TO MOST OF
THE CWA. THOUGHTS ARE THE EURO IS A BIT OUT TO LUNCH WITH THE MORE
AGGRESSIVE SOLUTION BUT EVEN THE GFS RUN WOULD SUGGEST AT LEAST SOME
CONVECTIVE QPF OVER THE INTERIOR AND LIKELY SOME LIGHT RAIN OR
DRIZZLE ALONG THE COAST. AT A MINIMUM COOLER THAN NORMAL TEMPS WOULD
BE ANTICIPATED...MAINTAINING AN ALREADY COOLER THAN NORMAL SUMMER.
PREVIOUS RUNS SHOWED A MORE ZONAL OR EVEN BUILDING HEIGHTS DURING
THIS PERIOD...GIVEN THE SUDDEN CHANGE...CONFIDENCE REMAINS LOW ATTM.

TONKIN

&&

.AVIATION...MAINLY CLEAR SKIES ACROSS THE REGION. A FEW SCATTERED
CLOUDS REMAIN OVER THE HILLS IN THE NORTHERN PORTION OF THE CWA. ALL
TAF SITES REMAIN VFR. VFR CONDITIONS ARE EXPECTED TO CONTINUE INTO
THIS EVENING ACROSS THE REGION. AFTER 6Z LOW IFR CONDITIONS ARE
EXPECTED IN THE EEL RIVER VALLEY NORTH TO KACV AND ALONG THE
MENDOCINO COAST AS THE COASTAL STRATUS BEGINS TO FORM. WITH DECENT
NORTHERLY WINDS EXPECT KCEC AND THE SHELTER COVE AREAS WILL REMAIN
MAINLY CLEAR...ALTHOUGH SOME GROUND FOG MAY FORM AT KCEC. MODELS ARE
INDICATING THAT SKIES WILL CLEAR IN MOST AREAS TOMORROW BY 18Z. MKK

&&

.MARINE...NORTH WINDS WILL CONTINUE TO INCREASE THROUGH THURSDAY AS
THE HIGH BUILDS INTO THE PACIFIC NORTHWEST AND THE THERMAL LOW
PRESSURE STRENGTHENS OVER INTERIOR CA. ISSUED GALE WATCH FOR PZZ475
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT AS MODELS ARE INDICATING A
FAIRLY WIDESPREAD AREA OF GUSTS OVER 35KT. MDT TO STRONG WINDS WILL
RESULT IN BUILDING SHORT PERIOD SEAS WITH COMBINED SEAS PEAKING
AROUND 10 TO 13 FT AT 9 SEC WED NIGHT THROUGH THU NIGHT. MODELS SHOW
THE GRADIENT RELAXING THIS WEEKEND ALLOWING WINDS AND SEAS TO
SUBSIDE. MKK

&&

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

NORTHWEST CALIFORNIA COASTAL WATERS...

     SMALL CRAFT ADVISORY PZZ470.

     SMALL CRAFT ADVISORY PZZ455.

     SMALL CRAFT ADVISORY PZZ475.

&&

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

FOLLOW US ON FACEBOOK AT:
HTTP://WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.EUREKA.GOV

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EUREKA CA
515 AM PDT TUE JUL 19 2011

CAZ001>004-076-201215-
REDWOOD COAST-MENDOCINO COAST-NORTH COAST INTERIOR-
UPPER TRINITY RIVER-MENDOCINO INTERIOR-
515 AM PDT TUE JUL 19 2011

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...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

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