Small Craft Advisory 547, NWS Anchorage, AK

852 
FZAK52 PAFC 052309
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 PM AKDT SUN AUG 5 2012

COASTAL WATERS FORECAST FOR SOUTHWEST ALASKA+BRISTOL BAY+THE
ALASKA PENINSULA WATERS AND THE ALEUTIAN ISLANDS UP TO 100 NM OUT.

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ199-061500-
400 PM AKDT SUN AUG 5 2012
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
HIGH PRESSURE WILL REMAIN OVER MOST OF THE BERING SEA THROUGH TUE. A
1020 MB LOW 165 NM SOUTH OF SHEMYA WILL MOVE TO 135 NM NORTHEAST OF
ATKA MON NIGHT AND THEN DISSIPATE.
$$

PKZ150-061500-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA SITKINAK TO CASTLE
CAPE
400 PM AKDT SUN AUG 5 2012

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...NW WIND 25 KT. SEAS 7 FT. 
.MON...NW WIND 25 KT. SEAS 8 FT. 
.MON NIGHT...NW WIND 20 KT. SEAS 6 FT. 
.TUE...NW WIND 15 KT. SEAS 5 FT. 
.TUE NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT. 
.WED...VARIABLE WIND 10 KT. SEAS 4 FT. 
.THU...VARIABLE WIND 10 KT. SEAS 4 FT. 
.FRI...S WIND 15 KT. SEAS 5 FT.  

$$

PKZ155-061500-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA CASTLE CAPE TO CAPE
SARICHEF
400 PM AKDT SUN AUG 5 2012

.TONIGHT...NW WIND 20 KT. SEAS 6 FT. 
.MON...NW WIND 20 KT. SEAS 6 FT. 
.MON NIGHT...NW WIND 20 KT. SEAS 5 FT. 
.TUE...NW WIND 15 KT. SEAS 4 FT. 
.TUE NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT. 
.WED...VARIABLE WIND 10 KT. SEAS 4 FT. 
.THU...SW WIND 15 KT. SEAS 4 FT. 
.FRI...SW WIND 15 KT. SEAS 5 FT.  

$$

PKZ160-061500-
BRISTOL BAY WATERS CAPE NEWENHAM TO PORT HEIDEN
400 PM AKDT SUN AUG 5 2012

.TONIGHT...NW WIND 20 KT. SEAS 5 FT. PATCHY FOG. 
.MON...W WIND 20 KT. SEAS 4 FT. PATCHY FOG. 
.MON NIGHT...W WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.TUE...W WIND 15 KT. SEAS 3 FT. 
.TUE NIGHT...W WIND 10 KT. SEAS 3 FT. 
.WED...W WIND 10 KT. SEAS 2 FT. 
.THU...SW WIND 20 KT. SEAS 4 FT. 
.FRI...SE WIND 15 KT. SEAS 5 FT.  

$$

PKZ165-061500-
PORT HEIDEN TO CAPE SARICHEF
400 PM AKDT SUN AUG 5 2012

.TONIGHT...NW WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.MON...W WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.MON NIGHT...W WIND 15 KT. SEAS 3 FT. PATCHY FOG. 
.TUE...VARIABLE WIND 10 KT. SEAS 3 FT. 
.TUE NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT. 
.WED...VARIABLE WIND 10 KT. SEAS 3 FT. 
.THU...SW WIND 15 KT. SEAS 5 FT. 
.FRI...SW WIND 15 KT. SEAS 5 FT.  

$$

PKZ180-061500-
SOUTHWEST ALASKA WATERS CAPE NEWENHAM TO DALL POINT
400 PM AKDT SUN AUG 5 2012

.TONIGHT...W WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.MON...W WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.MON NIGHT...W WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT. SEAS
4 FT. PATCHY FOG. 
.TUE...NW WIND 10 KT. SEAS 4 FT. 
.TUE NIGHT...N WIND 10 KT. SEAS 3 FT. 
.WED...NW WIND 10 KT. SEAS 3 FT. 
.THU...S WIND 20 KT. SEAS 5 FT. 
.FRI...SE WIND 15 KT. SEAS 5 FT.  

$$

PKZ170-061500-
EASTERN ALEUTIANS CAPE SARICHEF TO NIKOLSKI
400 PM AKDT SUN AUG 5 2012

.TONIGHT...W WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.MON...W WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.MON NIGHT...SW WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.TUE...NW WIND 15 KT. SEAS 4 FT. 
.TUE NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT. 
.WED...VARIABLE WIND 10 KT. SEAS 4 FT. 
.THU...SW WIND 20 KT. SEAS 5 FT. 
.FRI...W WIND 20 KT. SEAS 6 FT.  

$$

PKZ171-061500-
UNALASKA BAY
400 PM AKDT SUN AUG 5 2012

.TONIGHT...W WIND 10 KT. SEAS 2 FT. PATCHY FOG. 
.MON...W WIND 10 KT. SEAS 2 FT. PATCHY FOG. 
.MON NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. PATCHY FOG. 
.TUE...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. 
.TUE NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. 
.WED...NW WIND 10 KT. SEAS 2 FT. 
.THU...SW WIND 10 KT. SEAS 2 FT. 
.FRI...W WIND 10 KT. SEAS 3 FT.  

$$

PKZ172-061500-
EASTERN ALEUTIANS NIKOLSKI TO ADAK
400 PM AKDT SUN AUG 5 2012

.TONIGHT...SW WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.MON...SW WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.MON NIGHT...SW WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.TUE...NW WIND 20 KT. SEAS 6 FT. 
.TUE NIGHT...NW WIND 20 KT. SEAS 5 FT. 
.WED...W WIND 15 KT. SEAS 4 FT. 
.THU...W WIND 20 KT. SEAS 6 FT. 
.FRI...W WIND 20 KT. SEAS 6 FT.  

$$

PKZ175-061500-
WESTERN ALEUTIANS ADAK TO KISKA
400 PM AKDT SUN AUG 5 2012

.TONIGHT...S WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.MON...SW WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.MON NIGHT...W WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.TUE...NW WIND 20 KT. SEAS 5 FT. 
.TUE NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT. 
.WED...SW WIND 25 KT. SEAS 6 FT. 
.THU...W WIND 20 KT. SEAS 6 FT. 
.FRI...NW WIND 20 KT. SEAS 5 FT.  

$$

PKZ176-061500-
WESTERN ALEUTIANS KISKA TO ATTU
400 PM AKDT SUN AUG 5 2012

.TONIGHT...VARIABLE WIND 10 KT BECOMING NW 15 KT AFTER MIDNIGHT.
SEAS 4 FT. PATCHY FOG. 
.MON...NW WIND 20 KT. SEAS 5 FT. PATCHY FOG. 
.MON NIGHT...W WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.TUE...SW WIND 15 KT. SEAS 4 FT. 
.TUE NIGHT...S WIND 20 KT. SEAS 5 FT. 
.WED...SW WIND 25 KT. SEAS 6 FT. 
.THU...W WIND 15 KT. SEAS 6 FT. 
.FRI...NW WIND 15 KT. SEAS 5 FT.  

$$

PKZ185-061500-
ST MATTHEW ISLAND WATERS
400 PM AKDT SUN AUG 5 2012

.TONIGHT...SW WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.MON...W WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.MON NIGHT...W WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.TUE...VARIABLE WIND 10 KT. SEAS 4 FT. 
.TUE NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT. 
.WED...SW WIND 15 KT. SEAS 4 FT. 
.THU...W WIND 15 KT. SEAS 6 FT. 
.FRI...N WIND 20 KT. SEAS 6 FT.  

$$

PKZ179-061500-
PRIBILOF ISLANDS NEAR-SHORE WATERS
400 PM AKDT SUN AUG 5 2012

.TONIGHT...W WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.MON...W WIND 15 KT. SEAS 4 FT. PATCHY FOG. 
.MON NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT. PATCHY FOG. 
.TUE...VARIABLE WIND 10 KT. SEAS 3 FT. 
.TUE NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT. 
.WED...VARIABLE WIND 10 KT. SEAS 3 FT. 
.THU...SW WIND 15 KT. SEAS 5 FT. 
.FRI...NW WIND 15 KT. SEAS 5 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
250 PM AKDT SAT AUG 4 2012

.ANALYSIS AND UPPER LEVELS...
MUCH OF ALASKA IS UNDER THE INFLUENCE OF A BROAD UPPER LEVEL TROUGH
EXTENDING FROM THE ARCTIC COAST TO THE EASTERN BERING...WITH A CLOSED
UPPER LOW CENTERED OVER THE SOUTHWESTERN COAST NEAR NUNIVAK ISLAND.
SHOWERS ASSOCIATED WITH THIS FEATURE PERSIST OVER THE KUSKOKWIM
DELTA. MEANWHILE...A SHORT WAVE EMBEDDED IN SOUTHWESTERLY FLOW ALONG
THE EASTERN PERIPHERY OF THE LOW IS BRINGING CLOUDY SKIES AND AREAS
OF SHOWERS TO MUCH OF SOUTHCENTRAL AK AS IT PROGRESSES NORTHWARD
THROUGH THE AREA.

.MODEL DISCUSSION...
MODELS ARE IN GOOD AGREEMENT THROUGH THE SHORT TERM...BRINGING THE
UPPER LOW ALONG THE SOUTHWEST COAST THEN ACROSS THE AKPEN INTO THE
GULF OF ALASKA BY SUNDAY MORNING. THE LOW IS PROJECTED TO REMAIN
NEARLY STATIONARY OVER THE GULF THROUGH THE EARLY PART OF THE WEEK.

.SHORT TERM FORECAST...
SOUTHCENTRAL ALASKA...
SHOWERS WILL PERSIST INTO THIS EVENING ACROSS SOUTHCENTRAL AK AS THE
SHORT WAVE MOVES THROUGH. SHOWER ACTIVITY WILL THEN BEGIN TO DIMINISH
TONIGHT FOR INLAND AREAS BUT REMAIN ALONG THE COAST AS THE LOW MOVES
INTO THE GULF. THIS PATTERN LOOKS TO CONTINUE INTO THE EARLY PART OF
THE WEEK AS THE LOW REMAINS NEARLY STATIONARY OVER THE GULF.

SOUTHWEST ALASKA...
SHOWERS WILL PERSIST THROUGH TODAY ACROSS THE SOUTHWEST MAINLAND AND
THEN BEGIN TO TAPER OFF TONIGHT AS THE UPPER LOW MOVES AWAY FROM THE
AREA AND INTO THE GULF. SURFACE RIDGING BUILDING IN ON SUNDAY IN THE
WAKE OF THE LOW WILL LEAD TO PARTLY SUNNY SKIES OVER MUCH OF THE
AREA...ALTHOUGH MORNING SHOWERS WILL BE POSSIBLE ACROSS EASTERN
PORTIONS OF THE BRISTOL BAY REGION AS IT REMAINS IN CLOSER PROXIMITY
TO THE LOW.

BERING SEA/ALEUTIANS...
A WEAK LOW MOVING THROUGH THE CENTRAL ALEUTIANS WILL BRING A CHANCE
OF SCATTERED SHOWERS TO THE ISLANDS BEFORE DISSIPATING TONIGHT. UPPER
LEVEL AND SURFACE HIGH PRESSURE WILL BUILD IN ACROSS THE BERING AS
THE MAIN UPPER LOW MOVES INTO THE GULF...RESULTING IN LOW CLOUDS AND
FOG.

.LONG TERM FORECAST...
THE UPPER LOW LOOKS TO REMAIN NEARLY STATIONARY OVER THE GULF OF
ALASKA THROUGH MUCH OF THE WEEK...WHICH WOULD KEEP BULK OF SENSIBLE
WEATHER IMPACTS CONFINED TO AREAS ALONG THE THE GULF COAST. HIGH
PRESSURE ACROSS THE BERING WILL RESULT IN THE TYPICAL LOW CLOUDS AND
PATCHY FOG.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE
MARINE...NONE
FIRE WEATHER...NONE

CB AUG 12