Small Craft Advisory 548, NWS Anchorage, AK

135 
FZAK51 PAFC 052315
CWFAER

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

COASTAL WATERS FORECAST FOR THE NORTHERN GULF OF ALASKA COAST
UP TO 100 NM OUT INCLUDING KODIAK ISLAND AND COOK INLET.

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.

PKZ197-061500-
400 PM AKDT SUN AUG 5 2012
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...
A 1004 MB LOW 150 NM SOUTHEAST OF KODIAK CITY WILL REMAIN NEARLY
STATIONARY THROUGH MON NIGHT AND THEN DRIFT TO 240 NM SOUTHEAST OF
SITKINAK TUE AFTERNOON AT 1007 MB. 
$$

PKZ120-061500-
CAPE SUCKLING TO GORE POINT
400 PM AKDT SUN AUG 5 2012

...GALE WARNING TONIGHT...

.TONIGHT...NE WIND 25 KT INCREASING TO 35 KT THIS EVENING. SEAS 10 FT
BUILDING TO 14 FT. RAIN. 
.MON...E WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS 12 
FT SUBSIDING TO 8 FT. RAIN. 
.MON NIGHT...E WIND 20 KT. SEAS 8 FT. RAIN SHOWERS.
.TUE...E WIND 20 KT. SEAS 8 FT. 
.TUE NIGHT...E WIND 15 KT. SEAS 5 FT. 
.WED...E WIND 10 KT. SEAS 4 FT.
.THU AND FRI...VARIABLE WIND 10 KT. SEAS 4 FT. 

$$

PKZ121-061500-
RESURRECTION BAY
400 PM AKDT SUN AUG 5 2012

.TONIGHT...VARIABLE WIND 10 KT BECOMING N 15 KT DURING THE EVENING.
SEAS BUILDING TO 3 FT. HIGHER SEAS S OF CAINES HEAD. RAIN SHOWERS.
.MON AND MON NIGHT...N WIND 15 KT. SEAS 3 FT. RAIN.
.TUE...S WIND 10 KT. SEAS 2 FT. 
.TUE NIGHT...VARIABLE WIND 10 KT. SEAS 2 FT. 
.WED...S WIND 15 KT. SEAS 3 FT. 
.THU AND FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 1 FT. 

$$

PKZ125-061500-
PRINCE WILLIAM SOUND
400 PM AKDT SUN AUG 5 2012

.TONIGHT...N WIND 15 KT. NEAR HINCHINBROOK ENTRANCE...NE GUSTS TO 30
KT. SEAS 3 FT. RAIN SHOWERS.
.MON...N WIND 15 KT. NEAR HINCHINBROOK ENTRANCE...NE GUSTS TO 30 KT.
SEAS 3 FT. RAIN.
.MON NIGHT...NE WIND 10 KT. SEAS 2 FT. 
.TUE...N WIND 10 KT. SEAS 2 FT. 
.TUE NIGHT THROUGH FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 1 FT. 

$$

PKZ129-061500-
PASSAGE CANAL
400 PM AKDT SUN AUG 5 2012

.TONIGHT...VARIABLE WIND 10 KT BECOMING W 15 KT WITH GUSTS TO 25 KT
NEAR WHITTIER AFTER MIDNIGHT. SEAS 2 FT. RAIN SHOWERS.
.MON...W WIND 10 KT WITH GUSTS TO 25 KT NEAR WHITTIER IN THE
MORNING...BECOMING VARIABLE LESS THAN 10 KT. SEAS 2 FT. RAIN.
.MON NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. 
.TUE THROUGH FRI...VARIABLE WIND LESS THAN 10 KT. SEAS 1 FT. 

$$

PKZ130-061500-
BARREN ISLANDS AND KAMISHAK BAY WATERS
400 PM AKDT SUN AUG 5 2012

...GALE WARNING TONIGHT...

.TONIGHT...E OF THE BARREN ISLANDS...N WIND 35 KT. SEAS 13 FT. FROM
THE BARREN ISLANDS W...NW WIND 20 KT. SEAS 5 FT. RAIN SHOWERS. 
.MON...E OF THE BARREN ISLANDS...N WIND 30 KT. SEAS 10 FT. FROM THE
BARREN ISLANDS W...NW WIND 15 KT. SEAS 4 FT. RAIN SHOWERS. 
.MON NIGHT...E OF THE BARREN ISLANDS...NE WIND 20 KT. SEAS 8 FT. 
FROM THE BARREN ISLANDS W...VARIABLE WIND 10 KT. SEAS 3 FT.
.TUE...NE WIND 20 KT. SEAS 6 FT. 
.TUE NIGHT...E WIND 15 KT. SEAS 5 FT. 
.WED AND THU...VARIABLE WIND 10 KT. SEAS 3 FT. 
.FRI...SE WIND 15 KT. SEAS 3 FT.  

$$

PKZ132-061500-
SHUYAK ISLAND TO SITKINAK
400 PM AKDT SUN AUG 5 2012

...GALE WARNING TONIGHT...

.TONIGHT...N WIND 35 KT. SEAS 14 FT. RAIN. 
.MON...NW WIND 30 KT. SEAS 11 FT. RAIN SHOWERS.
.MON NIGHT...NW WIND 20 KT. SEAS 7 FT. 
.TUE...N WIND 20 KT. SEAS 6 FT. 
.TUE NIGHT...N WIND 15 KT. SEAS 5 FT. 
.WED AND THU...VARIABLE WIND 10 KT. SEAS 4 FT. 
.FRI...S WIND 15 KT. SEAS 4 FT.  

$$

PKZ138-061500-
SHELIKOF STRAIT
400 PM AKDT SUN AUG 5 2012

.TONIGHT...NW WIND 20 KT...GUSTING TO 30 KT OUT OF BAYS AND PASSES.
SEAS 4 FT. RAIN SHOWERS.
.MON...NW WIND 20 KT...GUSTING TO 30 KT OUT OF BAYS AND PASSES. SEAS
4 FT. 
.MON NIGHT...N WIND 15 KT...GUSTING TO 25 KT OUT OF BAYS AND PASSES.
SEAS 3 FT. 
.TUE THROUGH FRI...VARIABLE WIND 10 KT. SEAS 2 FT. 

$$

PKZ140-061500-
COOK INLET NORTH OF KAMISHAK BAY AND ENGLISH BAY
400 PM AKDT SUN AUG 5 2012

.TONIGHT...N WIND 20 KT. SEAS 5 FT. 
.MON...N WIND 15 KT. SEAS 4 FT. 
.MON NIGHT...NE WIND 10 KT. SEAS 2 FT. 
.TUE...N WIND 15 KT. SEAS 3 FT. 
.TUE NIGHT AND WED...SW WIND 15 KT. SEAS 4 FT. 
.THU AND FRI...S WIND 10 KT. SEAS 2 FT. 

$$

PKZ141-061500-
KACHEMAK BAY
400 PM AKDT SUN AUG 5 2012

.TONIGHT...W WIND 10 KT BECOMING N 15 KT AFTER MIDNIGHT. SEAS 2 FT.
.MON...N WIND 10 KT BECOMING SW IN THE AFTERNOON. SEAS 3 FT. 
.MON NIGHT...S WIND 10 KT IN THE EVENING BECOMING VARIABLE LESS THAN
10 KT. SEAS 2 FT. 
.TUE THROUGH WED...SW WIND 15 KT. SEAS 4 FT. 
.THU...S WIND 10 KT. SEAS 2 FT. 
.FRI...SE WIND 10 KT. SEAS 2 FT.  

$$

JM

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