Small Craft Advisory 273, NWS Anchorage, AK

428 
FZAK52 PAFC 191458 AAA
CWFALU

COASTAL WATERS FORECAST...UPDATE
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
655 AM AKDT TUE APR 19 2011

UPDATE TO ZONE 171

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.

PKZ199-200300-
400 AM AKDT TUE APR 19 2011
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 1003 MB LOW 200 NM SOUTH OF ATKA MOVES TO 150 NM SOUTHEAST OF ATKA
LATE WED NIGHT AND STRENGTHENS TO 982 MB. HIGH PRESSURE PERSISTS 
OVER THE BERING SEA THROUGH WED NIGHT. 

$$

PKZ150-200300-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA SITKINAK TO CASTLE
CAPE
400 AM AKDT TUE APR 19 2011

.TODAY...W WIND 15 KT. SEAS 6 FT. 
.TONIGHT AND WED...VARIABLE WIND 10 KT. SEAS 6 FT. 
.WED NIGHT...SE WIND 15 KT. SEAS 6 FT. 
.THU...SE WIND 25 KT. SEAS 11 FT. 
.FRI...E WIND 20 KT. SEAS 11 FT. 
.SAT...N WIND 15 KT. SEAS 9 FT.  

$$

PKZ155-200300-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA CASTLE CAPE TO CAPE
SARICHEF
400 AM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E WIND 25 KT. SEAS 9 FT. 
.TONIGHT...E WIND 15 KT. SEAS 7 FT. 
.WED...E WIND 20 KT. SEAS 7 FT. 
.WED NIGHT...E WIND 30 KT. SEAS 11 FT. 
.THU...SE WIND 30 KT. SEAS 11 FT. 
.FRI...NE WIND 20 KT. SEAS 11 FT. 
.SAT...N WIND 25 KT. SEAS 9 FT.  

$$

PKZ160-200300-
BRISTOL BAY WATERS CAPE NEWENHAM TO PORT HEIDEN
400 AM AKDT TUE APR 19 2011

.TODAY...N WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT. 
.TONIGHT...N WIND 10 KT IN THE EVENING BECOMING VARIABLE LESS THAN
10 KT. SEAS IN ICE FREE WATERS 2 FT. 
.WED...VARIABLE WIND LESS THAN 10 KT. SEAS IN ICE FREE WATERS 2 FT. 
.WED NIGHT...NE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT. 
.THU...E WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT. 
.FRI...NE WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT. 
.SAT...N WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.  

$$

PKZ165-200300-
PORT HEIDEN TO CAPE SARICHEF
400 AM AKDT TUE APR 19 2011

.TODAY...E WIND 15 KT. SEAS 4 FT. 
.TONIGHT...E WIND 15 KT. SEAS 4 FT. 
.WED...E WIND 15 KT. SEAS 3 FT. 
.WED NIGHT...E WIND 20 KT. SEAS 4 FT. 
.THU...E WIND 25 KT. SEAS 6 FT. 
.FRI...NE WIND 20 KT. SEAS 4 FT. 
.SAT...N WIND 25 KT. SEAS 7 FT.  

$$

PKZ180-200300-
SOUTHWEST ALASKA WATERS CAPE NEWENHAM TO DALL POINT
400 AM AKDT TUE APR 19 2011

.TODAY...N WIND 10 KT. PATCHY FOG. 
.TONIGHT...N WIND 10 KT. 
.WED...NE WIND 10 KT. 
.WED NIGHT...NE WIND 15 KT. 
.THU...NE WIND 25 KT. 
.FRI...N WIND 25 KT. 
.SAT...NW WIND 25 KT.  

$$

PKZ170-200300-
EASTERN ALEUTIANS CAPE SARICHEF TO NIKOLSKI
400 AM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E WIND 25 KT. SEAS 11 FT. 
.TONIGHT...E WIND 20 KT. SEAS 9 FT. 
.WED...E WIND 30 KT. SEAS 11 FT. 
.WED NIGHT...E WIND 35 KT. SEAS 14 FT. 
.THU...NE WIND 30 KT. SEAS 12 FT. 
.FRI...N WIND 25 KT. SEAS 10 FT. 
.SAT...N WIND 30 KT. SEAS 11 FT.  

$$

PKZ171-200300-
UNALASKA BAY
655 AM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E WIND 25 KT WITH GUSTS TO 35 KT. WINDS DIMINISHING TO 15 KT
BY AFTERNOON. SEAS 4 FT. RAIN. 
.TONIGHT AND WED...E WIND 15 KT. SEAS 2 FT. 
.WED NIGHT...E WIND 20 KT. SEAS 3 FT. 
.THU...NE WIND 20 KT. SEAS 5 FT. 
.FRI...N WIND 15 KT. SEAS 5 FT. 
.SAT...N WIND 20 KT. SEAS 7 FT.  

$$

PKZ172-200300-
EASTERN ALEUTIANS NIKOLSKI TO ADAK
400 AM AKDT TUE APR 19 2011

...GALE WARNING WEDNESDAY...

.TODAY...NE WIND 25 KT. SEAS 11 FT. 
.TONIGHT...E WIND 25 KT. SEAS 9 FT. 
.WED...NE WIND 35 KT. SEAS 13 FT. 
.WED NIGHT...NE WIND 35 KT. SEAS 14 FT. 
.THU...NE WIND 30 KT. SEAS 14 FT. 
.FRI...N WIND 30 KT. SEAS 14 FT. 
.SAT...N WIND 25 KT. SEAS 13 FT.  

$$

PKZ175-200300-
WESTERN ALEUTIANS ADAK TO KISKA
400 AM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NE WIND 25 KT. SEAS 10 FT. 
.TONIGHT AND WED...NE WIND 25 KT. SEAS 10 FT. 
.WED NIGHT AND THU...NE WIND 30 KT. SEAS 12 FT. 
.FRI...N WIND 25 KT. SEAS 12 FT. 
.SAT...NW WIND 20 KT. SEAS 11 FT.  

$$

PKZ176-200300-
WESTERN ALEUTIANS KISKA TO ATTU
400 AM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E WIND 25 KT. SEAS 11 FT. 
.TONIGHT AND WED...NE WIND 25 KT. SEAS 11 FT. 
.WED NIGHT...NE WIND 25 KT. SEAS 11 FT. 
.THU...NE WIND 30 KT. SEAS 12 FT. 
.FRI...N WIND 20 KT. SEAS 11 FT. 
.SAT...NW WIND 20 KT. SEAS 9 FT.  

$$

PKZ185-200300-
ST MATTHEW ISLAND WATERS
400 AM AKDT TUE APR 19 2011

.TODAY...NE WIND 15 KT. PATCHY FOG. 
.TONIGHT AND WED...NE WIND 15 KT. PATCHY FOG. 
.WED NIGHT...NE WIND 20 KT. 
.THU...NE WIND 25 KT. 
.FRI...N WIND 25 KT. 
.SAT...N WIND 20 KT.  

$$

PKZ179-200300-
PRIBILOF ISLANDS NEAR-SHORE WATERS
400 AM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE WIND 25 KT. SEAS 6 FT. 
.TONIGHT AND WED...NE WIND 20 KT. SEAS 5 FT. FREEZING SPRAY. 
.WED NIGHT...NE WIND 25 KT. SEAS 6 FT. 
.THU...NE WIND 35 KT. SEAS 9 FT. 
.FRI...N WIND 35 KT. SEAS 10 FT. 
.SAT...N WIND 30 KT. SEAS 9 FT.  

$$

647 
FZAK52 PAFC 192349
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 PM AKDT TUE APR 19 2011

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.

PKZ199-201500-
400 PM AKDT TUE APR 19 2011
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
HIGH PRESSURE PERSISTS OVER THE NORTHERN BERING THROUGH WED NIGHT. A
1002 MB LOW 240 NM SOUTH OF ATKA DRIFTS SOUTHEAST AND WEAKENS
TONIGHT. A 986 MB LOW 550 NM SOUTH OF DUTCH HARBOR MOVES TO 220 NM
SOUTH OF DUTCH HARBOR AT 983 MB THURSDAY AFTERNOON. 
$$

PKZ150-201500-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA SITKINAK TO CASTLE
CAPE
400 PM AKDT TUE APR 19 2011

.TONIGHT...W WIND 10 KT. SEAS 7 FT. 
.WED...VARIABLE WIND LESS THAN 10 KT. SEAS 5 FT. 
.WED NIGHT...S WIND 15 KT. SEAS 7 FT. 
.THU...SE WIND 20 KT. SEAS 7 FT. 
.THU NIGHT...SE WIND 25 KT. SEAS 10 FT. 
.FRI...E WIND 20 KT. SEAS 11 FT. 
.SAT...NE WIND 15 KT. SEAS 9 FT. 
.SUN...NW WIND 20 KT. SEAS 10 FT.  

$$

PKZ155-201500-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA CASTLE CAPE TO CAPE
SARICHEF
400 PM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...E WIND 20 KT. SEAS 9 FT. 
.WED...SE WIND 20 KT. SEAS 8 FT. 
.WED NIGHT...E WIND 30 KT. SEAS 7 FT. 
.THU...E WIND 30 KT. SEAS 10 FT. 
.THU NIGHT...SE WIND 20 KT. SEAS 10 FT. 
.FRI...NE WIND 20 KT. SEAS 11 FT. 
.SAT...NE WIND 25 KT. SEAS 8 FT. 
.SUN...NW WIND 25 KT. SEAS 8 FT.  

$$

PKZ160-201500-
BRISTOL BAY WATERS CAPE NEWENHAM TO PORT HEIDEN
400 PM AKDT TUE APR 19 2011

.TONIGHT...NW WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT. 
.WED...VARIABLE WINDS LESS THAN 10 KT. SEAS IN ICE FREE WATERS 2 FT. 
.WED NIGHT...VARIABLE WINDS LESS THAN 10 KT BECOMING NE 15 KT AFTER
MIDNIGHT. SEAS IN ICE FREE WATERS 2 FT. 
.THU...E WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT. 
.THU NIGHT AND FRI...NE WIND 25 KT. SEAS IN ICE FREE WATERS 4 FT. 
.SAT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT. 
.SUN...NW WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.  

$$

PKZ165-201500-
PORT HEIDEN TO CAPE SARICHEF
400 PM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...E WIND 15 KT. SEAS 4 FT. 
.WED...E WIND 15 KT. SEAS 3 FT. 
.WED NIGHT...E WIND 15 KT INCREASING TO 25 KT AFTER MIDNIGHT. SEAS 3
FT BUILDING TO 6 FT. 
.THU THROUGH FRI...NE WIND 25 KT. SEAS 7 FT. 
.SAT...N WIND 25 KT. SEAS 7 FT. 
.SUN...NW WIND 20 KT. SEAS 8 FT.  

$$

PKZ180-201500-
SOUTHWEST ALASKA WATERS CAPE NEWENHAM TO DALL POINT
400 PM AKDT TUE APR 19 2011

.TONIGHT...N WIND 10 KT. FOG.
.WED AND WED NIGHT...N WIND 15 KT. FOG. 
.THU...NE WIND 20 KT. 
.THU NIGHT AND FRI...N WIND 25 KT. 
.SAT AND SUN...NW WIND 25 KT. 

$$

PKZ170-201500-
EASTERN ALEUTIANS CAPE SARICHEF TO NIKOLSKI
400 PM AKDT TUE APR 19 2011

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...SE WIND 25 KT. SEAS 8 FT. 
.WED...E WIND 30 KT. SEAS 8 FT. 
.WED NIGHT...E WIND 35 KT. SEAS 12 FT. 
.THU...NE WIND 35 KT. SEAS 12 FT. 
.THU NIGHT AND FRI...N WIND 30 KT. SEAS 10 FT. 
.SAT...N WIND 30 KT. SEAS 10 FT. 
.SUN...NW WIND 25 KT. SEAS 9 FT.  

$$

PKZ171-201500-
UNALASKA BAY
400 PM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...E WIND 15 KT. SEAS 2 FT. 
.WED...E WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS 2 FT
BUILDING TO 4 FT. 
.WED NIGHT...E WIND 25 KT. SEAS 4 FT. 
.THU AND THU NIGHT...NE WIND 20 KT. SEAS 5 FT. 
.FRI...N WIND 15 KT. SEAS 4 FT. 
.SAT...N WIND 20 KT. SEAS 6 FT. 
.SUN...NW WIND 15 KT. SEAS 5 FT.  

$$

PKZ172-201500-
EASTERN ALEUTIANS NIKOLSKI TO ADAK
400 PM AKDT TUE APR 19 2011

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...E WIND 25 KT. SEAS 10 FT. 
.WED...E WIND 35 KT. SEAS 11 FT. 
.WED NIGHT...NE WIND 40 KT. SEAS 15 FT. RAIN AND SNOW. 
.THU...NE WIND 35 KT. SEAS 15 FT. 
.THU NIGHT AND FRI...N WIND 30 KT. SEAS 13 FT. 
.SAT...N WIND 25 KT. SEAS 12 FT. 
.SUN...W WIND 20 KT. SEAS 9 FT.  

$$

PKZ175-201500-
WESTERN ALEUTIANS ADAK TO KISKA
400 PM AKDT TUE APR 19 2011

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...NE WIND 30 KT. SEAS 10 FT. 
.WED...NE WIND 30 KT. SEAS 10 FT. 
.WED NIGHT...NE WIND 35 KT. SEAS 12 FT. RAIN AND SNOW. 
.THU AND THU NIGHT...NE WIND 30 KT. SEAS 14 FT. 
.FRI...N WIND 25 KT. SEAS 12 FT. 
.SAT AND SUN...NW WIND 20 KT. SEAS 9 FT. 

$$

PKZ176-201500-
WESTERN ALEUTIANS KISKA TO ATTU
400 PM AKDT TUE APR 19 2011

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...NE WIND 25 KT. SEAS 11 FT. 
.WED AND WED NIGHT...NE WIND 25 KT. SEAS 11 FT. 
.THU THROUGH FRI...NE WIND 25 KT. SEAS 12 FT. 
.SAT AND SUN...NW WIND 20 KT. SEAS 8 FT. 

$$

PKZ185-201500-
ST MATTHEW ISLAND WATERS
400 PM AKDT TUE APR 19 2011

.TONIGHT...NE WIND 15 KT. 
.WED AND WED NIGHT...NE WIND 15 KT. 
.THU THROUGH FRI...NE WIND 25 KT. 
.SAT AND SUN...N WIND 20 KT. 

$$

PKZ179-201500-
PRIBILOF ISLANDS NEAR-SHORE WATERS
400 PM AKDT TUE APR 19 2011

.TONIGHT...NE WIND 20 KT. SEAS 5 FT. FREEZING SPRAY. 
.WED AND WED NIGHT...NE WIND 20 KT. SEAS 5 FT. FREEZING SPRAY. 
.THU...NE WIND 30 KT. SEAS 9 FT. 
.THU NIGHT AND FRI...N WIND 35 KT. SEAS 9 FT. 
.SAT...N WIND 30 KT. SEAS 9 FT. 
.SUN...N WIND 20 KT. SEAS 5 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
100 PM AKDT MON APR 18 2011

.MODEL DISCUSSION...MODELS IN GOOD AGREEMENT ON PRIMARY WEATHER
FEATURES. HIGH PRESSURE FROM THE NORTHERN BERING ACROSS TO THE
SOUTHEASTERN GULF WITH A LOW SOUTH OF THE EASTERN ALEUTIANS AND
ANOTHER LOW IN THE CANADIAN ARCTIC.  THIS PATTERN PERSISTS THROUGH
MOST OF THE WEEK WITH A SECOND LOW NORTH PACIFIC LOW MOVING SOUTH OF
THE EASTERN ALEUTIANS WED AFTERNOON.  MODELS ALSO HINTING AT THE
DEVELOPMENT OF A WEAK AREA OF LOWER PRESSURE OVER THE TALKEETNA MTNS
WED IN RESPONSE TO A UPPER LEVEL TROUGH MOVING SOUTH FROM THE ARCTIC
COAST.

.ANALYSIS AND UPPER LEVELS...ONLY ACTIVE STORM IS IN THE CENTRAL AND
EASTERN ALEUTIANS WITH FRONT MOVING OVER SOUTHERN AK PEN THIS
AFTERNOON. HIGH PRESSURE OVER THE GULF AND NORTHERN BERING WILL KEEP
THIS SYSTEM CONFINED TO THE ALEUTIANS.

.SHORT TERM FORECAST...GENERALLY CLEAR OVER MOST LAND ZONES THROUGH
WED. CLOUD COVER WITH SOME SHOWERS POSSIBLE WED AFTERNOON NORTH OF
60N IN RESPONSE TO AFOREMENTIONED AREA OF LOWER PRESSURE THAT
DEVELOPS OVER SOUTHCENTRAL.SOME LOCAL AREAS OF COASTAL FOG IN THE
WEST.
BERING REGION...CONTINUED CLOUDY WITH RAIN AND SHOWERS OVER MOST OF
ALEUTIANS AND SOUTHERN THIRD OF AK PEN. ALTHOUGH SOUTHEAST WIND
SPEEDS DIMINISHING THIS EVENING IN THE EASTERN AL AND SOUTHERN AK
PEN...THEY WILL PERSIST BEFORE INCREASING A SECOND TIME WED EVENING.

.LONG TERM FORECAST...MODELS INDICATING THAT SECOND NORTH PACIFIC
SYSTEM SOUTH OF EASTERN ALEUTIANS MID WEEK WILL PRODUCE A FRONT THAT
MOVES INTO THE WESTERN GULF ON FRI. ALTHOUGH THERE IS CONSIDERABLE
UNCERTAINTY THERE IS POTENTIAL FOR CLOUD COVERAGE FOR MUCH OF
SOUTHCENTRAL AND BRISTOL BAY BY FRI MORNING WITH RAIN ALONG THE COAST
AS A RESULT OF MOIST SOUTHERLY FLOW.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE
MARINE... GALE 155 170
FIRE WEATHER...NONE

JMP APR 11