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Hydrologic Outlook

HYDROLOGIC OUTLOOK
WAC009-027-031-033-041-045-053-057-061-067-073-200000-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE SEATTLE WA
132 PM PST THU DEC 18 2014

...HEAVY RAIN COULD CAUSE FLOODING BY LATE THIS WEEKEND...

HEAVY RAIN IS FORECAST OVER WESTERN WASHINGTON SATURDAY AND
SUNDAY. STRONG WESTERLY FLOW ALOFT WILL BRING HEAVY RAIN AT TIMES
TO THE COAST AND OLYMPICS ON SATURDAY. HEAVY RAIN WILL SPREAD
INTO THE CASCADES SATURDAY AFTERNOON. MODELS CURRENTLY TAPER RAIN
OVER THE OLYMPICS ON SUNDAY BUT KEEP HEAVY RAIN GOING IN THE
CASCADES...ESPECIALLY OVER THE CASCADES FROM ABOUT KING COUNTY
SOUTH. THE TOTAL MODEL RAINFALL OVER ABOUT 48 HOURS FROM SATURDAY
MORNING THROUGH SUNDAY NIGHT AMOUNTS TO AROUND FOUR TO SIX INCHES
OVER THE OLYMPICS AND CENTRAL CASCADES WITH A TEN-INCH BULLSEYE
OVER MOUNT RAINIER.

THESE RAINFALL AMOUNTS ARE ENOUGH TO CAUSE FLOODING. AT THIS TIME
THE RIVERS MOST LIKELY TO FLOOD ARE THE ONES FLOWING OFF THE
CASCADES OF KING...PIERCE...AND LEWIS COUNTIES...AS WELL AS THE
UNUSUALLY FLOOD-PRONE SKOKOMISH RIVER IN MASON COUNTY. ANY FLOODING
WOULD LIKELY BEGIN SUNDAY WITH CRESTS SUNDAY NIGHT OR MONDAY. THE
EXACT POSITION OF THE STREAM OF MOISTURE IS UNCERTAIN SO THIS
OUTLOOK COVERS THE ENTIRE OLYMPIC PENINSULA AND ALL OF THE
CASCADES RIVERS.

$$






High Surf Advisory

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
131 PM PST THU DEC 18 2014

WAZ516-517-190545-
/O.NEW.KSEW.SU.Y.0006.141219T1800Z-141220T1400Z/
/O.NEW.KSEW.CF.A.0004.141220T1400Z-141221T0000Z/
NORTH COAST-CENTRAL COAST-
131 PM PST THU DEC 18 2014

...HIGH SURF ADVISORY IN EFFECT FROM 10 AM FRIDAY TO 6 AM PST
SATURDAY...
...COASTAL FLOOD WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH SURF
ADVISORY...WHICH IS IN EFFECT FROM 10 AM FRIDAY TO 6 AM PST
SATURDAY. A COASTAL FLOOD WATCH HAS ALSO BEEN ISSUED. THIS
COASTAL FLOOD WATCH IS IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON.

* TIMING...AN EXTENSIVE AREA OF HIGH WAVES THAT IS BEING GENERATED
  WELL OFFSHORE WILL MOVE ONTO THE WASHINGTON COAST AS AN
  ENERGETIC SWELL STARTING MIDDAY FRIDAY AND CONTINUING THROUGH
  SATURDAY. THE HIGH SWELL MAY COMBINE WITH A HIGH TIDE ON
  SATURDAY TO PRODUCE SOME COASTAL FLOODING MIDDAY
  SATURDAY...AROUND THE TIME OF HIGH TIDE.

* IMPACTS...HIGH SURF WILL MAKE IT IS EXTREMELY DANGEROUS TO FISH
  OR OBSERVE WAVES FROM ROCKS FRIDAY AFTERNOON THROUGH SATURDAY.
  SIGNIFICANT WAVE RUN UP ON BEACHES IS LIKELY. POTENTIAL
  SIGNIFICANT BEACH EROSION IS POSSIBLE. LOW LYING COASTAL
  COMMUNITIES SUCH AS WESTPORT...OCEAN SHORES AND LA PUSH MAY SEE
  SOME FLOODING AROUND THE SATURDAY HIGH TIDE.

* TIME OF HIGH TIDE...AROUND 11 AM PST SATURDAY ON THE CENTRAL AND
  NORTH WASHINGTON COAST.

* PREDICTED TIDE...AT NEAH BAY THE PREDICTED HIGH TIDE IS AROUND
  10.5 FEET. THE TIDE TABLE PREDICTION IS AROUND 9.2 FEET. TIDAL
  ANOMALIES WILL LIKELY BE HIGHER THAN THIS DUE TO BREAKING WAVE
  ACTION AND TIDAL ANOMALIES WILL BE SIMILAR ALONG THE ENTIRE
  COASTLINE OF NORTH AND CENTRAL WASHINGTON.

* SEAS...23 TO 25 FEET FRIDAY AFTERNOON AND FRIDAY NIGHT AND 20 TO
  22 FEET ON SATURDAY.

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 WATCH MEANS FLOODING OR BEACH EROSION WILL OCCUR
IF WEATHER CONDITIONS DEVELOP AS PREDICTED. RESIDENTS AND LOCAL
OFFICIALS SHOULD MONITOR THE SITUATION CLOSELY AND BE PREPARED TO
TAKE APPROPRIATE ACTION IF A WARNING IS ISSUED.

&&

$$

ALBRECHT
WWW.WEATHER.GOV/SEATTLE





Coastal Flood Watch

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
131 PM PST THU DEC 18 2014

WAZ516-517-190545-
/O.NEW.KSEW.SU.Y.0006.141219T1800Z-141220T1400Z/
/O.NEW.KSEW.CF.A.0004.141220T1400Z-141221T0000Z/
NORTH COAST-CENTRAL COAST-
131 PM PST THU DEC 18 2014

...HIGH SURF ADVISORY IN EFFECT FROM 10 AM FRIDAY TO 6 AM PST
SATURDAY...
...COASTAL FLOOD WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH SURF
ADVISORY...WHICH IS IN EFFECT FROM 10 AM FRIDAY TO 6 AM PST
SATURDAY. A COASTAL FLOOD WATCH HAS ALSO BEEN ISSUED. THIS
COASTAL FLOOD WATCH IS IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON.

* TIMING...AN EXTENSIVE AREA OF HIGH WAVES THAT IS BEING GENERATED
  WELL OFFSHORE WILL MOVE ONTO THE WASHINGTON COAST AS AN
  ENERGETIC SWELL STARTING MIDDAY FRIDAY AND CONTINUING THROUGH
  SATURDAY. THE HIGH SWELL MAY COMBINE WITH A HIGH TIDE ON
  SATURDAY TO PRODUCE SOME COASTAL FLOODING MIDDAY
  SATURDAY...AROUND THE TIME OF HIGH TIDE.

* IMPACTS...HIGH SURF WILL MAKE IT IS EXTREMELY DANGEROUS TO FISH
  OR OBSERVE WAVES FROM ROCKS FRIDAY AFTERNOON THROUGH SATURDAY.
  SIGNIFICANT WAVE RUN UP ON BEACHES IS LIKELY. POTENTIAL
  SIGNIFICANT BEACH EROSION IS POSSIBLE. LOW LYING COASTAL
  COMMUNITIES SUCH AS WESTPORT...OCEAN SHORES AND LA PUSH MAY SEE
  SOME FLOODING AROUND THE SATURDAY HIGH TIDE.

* TIME OF HIGH TIDE...AROUND 11 AM PST SATURDAY ON THE CENTRAL AND
  NORTH WASHINGTON COAST.

* PREDICTED TIDE...AT NEAH BAY THE PREDICTED HIGH TIDE IS AROUND
  10.5 FEET. THE TIDE TABLE PREDICTION IS AROUND 9.2 FEET. TIDAL
  ANOMALIES WILL LIKELY BE HIGHER THAN THIS DUE TO BREAKING WAVE
  ACTION AND TIDAL ANOMALIES WILL BE SIMILAR ALONG THE ENTIRE
  COASTLINE OF NORTH AND CENTRAL WASHINGTON.

* SEAS...23 TO 25 FEET FRIDAY AFTERNOON AND FRIDAY NIGHT AND 20 TO
  22 FEET ON SATURDAY.

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 WATCH MEANS FLOODING OR BEACH EROSION WILL OCCUR
IF WEATHER CONDITIONS DEVELOP AS PREDICTED. RESIDENTS AND LOCAL
OFFICIALS SHOULD MONITOR THE SITUATION CLOSELY AND BE PREPARED TO
TAKE APPROPRIATE ACTION IF A WARNING IS ISSUED.

&&

$$

ALBRECHT
WWW.WEATHER.GOV/SEATTLE





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