Small Craft Advisory 346, NWS Anchorage, AK

781 
FZAK52 PAFC 021144
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
344 AM AKDT TUE MAY 2 2017

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.

PKZ199-030100-
344 AM AKDT TUE MAY 2 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 1006 MB KAMCHATKA LOW MOVES TO 265 NM NORTHWEST OF ATTU AT 994 
MB THEN SHIFTS TO 370 NM SOUTH OF KISKA AT 975 MB BY THU MORNING.
THE ASSOCIATED FRONT CUTS AWAY OVER THE WESTERN BERING WHILE A 
TRAILING FRONT REMAINS SOUTH OF THE ALEUTIANS. HIGH PRESSURE 
SLIDES TO THE EASTERN BERING AND ALASKA PENINSULA BY THU MORNING.

$$

PKZ150-030100-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
344 AM AKDT TUE MAY 2 2017

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NE WIND 25 KT BECOMING N 35 KT IN THE AFTERNOON. 
SEAS 9 FT.
.TONIGHT...N WIND 40 KT. SEAS 15 FT.
.WED...NW WIND 40 KT. SEAS 16 FT.
.WED NIGHT...NW WIND 35 KT. SEAS 13 FT.
.THU...NW WIND 25 KT. SEAS 10 FT.
.FRI THROUGH SAT...SE WIND 25 KT. SEAS 12 FT.

$$

PKZ155-030100-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
344 AM AKDT TUE MAY 2 2017

...GALE WARNING WEDNESDAY...

.TODAY...N WIND 20 KT. SEAS 7 FT.
.TONIGHT...NW WIND 30 KT. SEAS 8 FT.
.WED...NW WIND 35 KT. SEAS 11 FT.
.WED NIGHT...NW WIND 30 KT. SEAS 11 FT.
.THU...SW WIND 30 KT. SEAS 7 FT.
.FRI...SE WIND 30 KT. SEAS 12 FT.
.SAT...SE WIND 15 KT. SEAS 13 FT.

$$

PKZ160-030100-
BRISTOL BAY-
344 AM AKDT TUE MAY 2 2017

...GALE WARNING WEDNESDAY...

.TODAY...N WIND 20 KT. SEAS 3 FT.
.TONIGHT...NW WIND 30 KT. SEAS 6 FT.
.WED...NW WIND 35 KT. SEAS 9 FT.
.WED NIGHT...NW WIND 30 KT. SEAS 9 FT.
.THU...W WIND 20 KT. SEAS 6 FT.
.FRI THROUGH SAT...E WIND 25 KT. SEAS 6 FT.

$$

PKZ165-030100-
PORT HEIDEN TO CAPE SARICHEF-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY TONIGHT AND WEDNESDAY...

.TODAY...NE WIND 20 KT. SEAS 5 FT.
.TONIGHT...N WIND 25 KT. SEAS 7 FT.
.WED...NW WIND 30 KT. SEAS 10 FT.
.WED NIGHT...NW WIND 30 KT. SEAS 9 FT.
.THU...NE WIND 25 KT. SEAS 6 FT.
.FRI...E WIND 30 KT. SEAS 7 FT.
.SAT...E WIND 25 KT. SEAS 6 FT.

$$

PKZ170-030100-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...N WIND 25 KT. SEAS 9 FT.
.TONIGHT...NW WIND 25 KT. SEAS 10 FT. PATCHY FOG.
.WED...NW WIND 25 KT. SEAS 8 FT. PATCHY FOG.
.WED NIGHT...W WIND 15 KT. SEAS 5 FT.
.THU THROUGH FRI...SE WIND 35 KT. SEAS 10 FT.
.SAT...E WIND 20 KT. SEAS 6 FT.

$$

PKZ171-030100-
UNALASKA BAY-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY TONIGHT AND WEDNESDAY...

.TODAY...N WIND 20 KT. SEAS 6 FT.
.TONIGHT...NW WIND 25 KT. SEAS 9 FT. PATCHY FOG.
.WED...NW WIND 25 KT. SEAS 8 FT. PATCHY FOG.
.WED NIGHT...NW WIND 10 KT. SEAS 3 FT.
.THU THROUGH FRI...SE WIND 30 KT. SEAS 5 FT.
.SAT...E WIND 10 KT. SEAS 2 FT.

$$

PKZ172-030100-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...N WIND 25 KT. SEAS 7 FT.
.TONIGHT...NW WIND 30 KT. SEAS 8 FT.
.WED...NW WIND 30 KT. SEAS 7 FT.
.WED NIGHT...W WIND 20 KT. SEAS 5 FT.
.THU THROUGH FRI...SE WIND 30 KT. SEAS 14 FT.
.SAT...E WIND 20 KT. SEAS 14 FT.

$$

PKZ173-030100-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N WIND 25 KT. SEAS 10 FT.
.TONIGHT...NW WIND 25 KT. SEAS 9 FT. PATCHY FOG.
.WED...W WIND 15 KT. SEAS 6 FT. PATCHY FOG.
.WED NIGHT...S WIND 25 KT. SEAS 5 FT.
.THU...SE WIND 40 KT. SEAS 13 FT.
.FRI...E WIND 30 KT. SEAS 11 FT.
.SAT...NE WIND 20 KT. SEAS 8 FT.

$$

PKZ174-030100-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N WIND 30 KT. SEAS 9 FT.
.TONIGHT...NW WIND 30 KT. SEAS 9 FT.
.WED...W WIND 20 KT. SEAS 6 FT.
.WED NIGHT...S WIND 25 KT. SEAS 6 FT.
.THU...SE WIND 35 KT. SEAS 14 FT.
.FRI...SE WIND 25 KT. SEAS 15 FT.
.SAT...NE WIND 25 KT. SEAS 15 FT.

$$

PKZ175-030100-
SEGUAM ISLAND TO ADAK BERING SIDE-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N WIND 25 KT. SEAS 9 FT.
.TONIGHT...SW WIND 20 KT. SEAS 6 FT. PATCHY FOG.
.WED...SW WIND 20 KT. SEAS 6 FT.
.WED NIGHT...SE WIND 30 KT. SEAS 7 FT.
.THU...SE WIND 35 KT. SEAS 13 FT.
.FRI THROUGH SAT...N WIND 25 KT. SEAS 10 FT.

$$

PKZ176-030100-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N WIND 25 KT. SEAS 8 FT.
.TONIGHT...NW WIND 20 KT. SEAS 5 FT.
.WED...SW WIND 20 KT. SEAS 5 FT.
.WED NIGHT...SE WIND 40 KT. SEAS 12 FT.
.THU...SE WIND 40 KT. SEAS 16 FT.
.FRI...NE WIND 20 KT. SEAS 12 FT.
.SAT...N WIND 25 KT. SEAS 9 FT.

$$

PKZ177-030100-
ADAK TO KISKA-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY TONIGHT AND WEDNESDAY...

.TODAY...NW WIND 20 KT. SEAS 6 FT.
.TONIGHT...S WIND 30 KT. SEAS 9 FT.
.WED...S WIND 30 KT. SEAS 10 FT.
.WED NIGHT...SE WIND 40 KT. SEAS 13 FT.
.THU...E WIND 40 KT. SEAS 17 FT.
.FRI THROUGH SAT...N WIND 30 KT. SEAS 13 FT.

$$

PKZ178-030100-
KISKA TO ATTU-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S WIND 30 KT. SEAS 6 FT BUILDING TO 11 FT IN THE
AFTERNOON.
.TONIGHT...S WIND 30 KT. SEAS 12 FT. RAIN.
.WED...S WIND 30 KT. SEAS 12 FT.
.WED NIGHT...SE WIND 30 KT. SEAS 10 FT.
.THU THROUGH SAT...N WIND 30 KT. SEAS 13 FT.

$$

PKZ179-030100-
PRIBILOF ISLANDS NEAR SHORE WATERS-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N WIND 25 KT. SEAS 7 FT. PATCHY MORNING FOG.
.TONIGHT...N WIND 25 KT. SEAS 7 FT. PATCHY FOG.
.WED...NW WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU...SE WIND 30 KT. SEAS 9 FT.
.FRI...E WIND 30 KT. SEAS 12 FT.
.SAT...NE WIND 20 KT. SEAS 9 FT.

$$

PKZ180-030100-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
344 AM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY TONIGHT AND WEDNESDAY...

.TODAY...NE WIND 15 KT. SEAS 3 FT.
.TONIGHT...NW WIND 25 KT. SEAS 5 FT.
.WED...NW WIND 30 KT. SEAS 7 FT.
.WED NIGHT...NW WIND 25 KT. SEAS 7 FT.
.THU...N WIND 20 KT. SEAS 5 FT.
.FRI THROUGH SAT...E WIND 25 KT. SEAS 8 FT.

$$

PKZ181-030100-
NORTH AND WEST OF NUNIVAK ISLAND-
344 AM AKDT TUE MAY 2 2017

.TODAY...N WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.TONIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.WED...NW WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.WED NIGHT...NW WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.THU...NE WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.FRI THROUGH SAT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.

$$

PKZ185-030100-
SAINT MATTHEW ISLAND WATERS-
344 AM AKDT TUE MAY 2 2017

.TODAY...NW WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.TONIGHT...N WIND 20 KT E OF SAINT MATTHEW ISLAND...VARIABLE 10 KT
W OF SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 3 FT. PATCHY FOG.
.WED...NW WIND 15 KT E OF SAINT MATTHEW ISLAND... SE 20 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 3 FT.
.WED NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.THU...E WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.FRI THROUGH SAT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.

$$

106 
FZAK52 PAFC 022329
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
329 PM AKDT TUE MAY 2 2017

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.

PKZ199-031200-
329 PM AKDT TUE MAY 2 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 965 MB LOW WILL MOVE INTO THE GULF OF ALASKA TONIGHT THEN WEAKEN
SLOWLY THROUGH THU. A FRONT OVER THE WESTERN BERING SEA WILL MOVE
EAST AND STALL OVER THE CENTRAL BERING SEA WHILE A SECONDARY AND
STRONGER GALE FORCE FRONT MOVES NORTH FROM THE NORTH PACIFIC 
WEDNESDAY NIGHT AND THURSDAY. THIS FRONT WILL STRETCH ACROSS THE
ENTIRE ALEUTIAN CHAIN.

$$

PKZ150-031200-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
329 PM AKDT TUE MAY 2 2017

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...N WIND 40 KT. SEAS 14 FT.
.WED...NW WIND 35 KT. SEAS 15 FT.
.WED NIGHT...NW WIND 35 KT. SEAS 13 FT.
.THU...NW WIND 30 KT. SEAS 10 FT.
.THU NIGHT...W WIND 20 KT. SEAS 6 FT.
.FRI THROUGH SAT...SE WIND 25 KT. SEAS 12 FT.
.SUN...SE WIND 15 KT. SEAS 11 FT.

$$

PKZ155-031200-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
329 PM AKDT TUE MAY 2 2017

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

.TONIGHT...NW WIND 30 KT. SEAS 8 FT.
.WED...NW WIND 30 KT. SEAS 11 FT.
.WED NIGHT...NW WIND 30 KT DIMINISHING TO 15 KT W OF THE SHUMAGIN
ISLANDS AFTER MIDNIGHT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 6 FT.
.THU NIGHT...S WIND 30 KT. SEAS 7 FT.
.FRI...SE WIND 30 KT. SEAS 12 FT.
.SAT...SE WIND 15 KT. SEAS 13 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 10 FT.

$$

PKZ160-031200-
BRISTOL BAY-
329 PM AKDT TUE MAY 2 2017

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

.TONIGHT...N WIND 25 KT. SEAS 6 FT.
.WED...NW WIND 30 KT. SEAS 9 FT.
.WED NIGHT...NW WIND 30 KT. SEAS 9 FT.
.THU...W WIND 20 KT. SEAS 6 FT.
.THU NIGHT...W WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...E WIND 25 KT. SEAS 6 FT.
.SUN...E WIND 20 KT. SEAS 4 FT.

$$

PKZ165-031200-
PORT HEIDEN TO CAPE SARICHEF-
329 PM AKDT TUE MAY 2 2017

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

.TONIGHT...NW WIND 25 KT. SEAS 7 FT.
.WED...NW WIND 30 KT. SEAS 10 FT.
.WED NIGHT...NW WIND 20 KT EXCEPT NW 30 KT FROM PORT MOLLER E.
SEAS 9 FT.
.THU...NW WIND 20 KT. SEAS 6 FT.
.THU NIGHT...E WIND 25 KT. SEAS 5 FT.
.FRI...E WIND 30 KT. SEAS 7 FT.
.SAT...E WIND 25 KT. SEAS 6 FT.
.SUN...NE WIND 15 KT. SEAS 5 FT.

$$

PKZ170-031200-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
329 PM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW WIND 25 KT. SEAS 10 FT.
.WED...NW WIND 25 KT DIMINISHING TO 15 KT AFTER NOON. SEAS 8 FT.
.WED NIGHT...W WIND 10 KT BECOMING SE AFTER MIDNIGHT. SEAS 5 FT.
.THU...SE WIND 30 KT. SEAS 6 FT.
.THU NIGHT...SE WIND 35 KT. SEAS 9 FT.
.FRI...SE WIND 35 KT. SEAS 10 FT.
.SAT...E WIND 20 KT. SEAS 6 FT.
.SUN...N WIND 20 KT. SEAS 6 FT.

$$

PKZ171-031200-
UNALASKA BAY-
329 PM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW WIND 25 KT. SEAS 8 FT.
.WED...NW WIND 25 KT. SEAS 8 FT.
.WED NIGHT...NW WIND 15 KT IN THE EVENING BECOMING VARIABLE LESS
THAN 10 KT. SEAS SUBSIDING TO 3 FT AFTER MIDNIGHT.
.THU...SE WIND 20 KT. SEAS 3 FT.
.THU NIGHT...SE WIND 30 KT. SEAS 5 FT.
.FRI...SE WIND 30 KT. SEAS 5 FT.
.SAT...E WIND 10 KT. SEAS 2 FT.
.SUN...N WIND 10 KT. SEAS 3 FT.

$$

PKZ172-031200-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
329 PM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW WIND 30 KT. SEAS 8 FT.
.WED...NW WIND 25 KT DIMINISHING TO 15 KT W OF DUTCH HARBOR AFTER 
NOON. SEAS 7 FT.
.WED NIGHT...W WIND 15 KT SUBSIDING. SEAS 5 FT.
.THU...SE WIND 30 KT. SEAS 8 FT.
.THU NIGHT...SE WIND 30 KT. SEAS 13 FT.
.FRI...SE WIND 30 KT. SEAS 14 FT.
.SAT...E WIND 20 KT. SEAS 14 FT.
.SUN...N WIND 20 KT. SEAS 9 FT.

$$

PKZ173-031200-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
329 PM AKDT TUE MAY 2 2017

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

.TONIGHT...NW WIND 25 KT DIMINISHING. SEAS 9 FT.
.WED...W WIND 15 KT. SEAS 6 FT.
.WED NIGHT...S WIND 15 KT BECOMING SE 25 KT AFTER MIDNIGHT. SEAS
6 FT.
.THU AND THU NIGHT...SE WIND 35 KT. SEAS 14 FT.
.FRI...E WIND 30 KT. SEAS 11 FT.
.SAT...NE WIND 20 KT. SEAS 8 FT.
.SUN...N WIND 25 KT. SEAS 8 FT.

$$

PKZ174-031200-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
329 PM AKDT TUE MAY 2 2017

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

.TONIGHT...NW WIND 25 KT DIMINISHING. SEAS 9 FT.
.WED...W WIND 15 KT. SEAS 6 FT.
.WED NIGHT...S WIND 20 KT BECOMING SE 30 KT AFTER MIDNIGHT. SEAS
7 FT.
.THU...SE WIND 35 KT. SEAS 14 FT.
.THU NIGHT...SE WIND 30 KT. SEAS 14 FT.
.FRI...SE WIND 25 KT. SEAS 15 FT.
.SAT...NE WIND 25 KT. SEAS 15 FT.
.SUN...N WIND 25 KT. SEAS 8 FT.

$$

PKZ175-031200-
SEGUAM ISLAND TO ADAK BERING SIDE-
329 PM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...NW WIND 10 KT BECOMING SW 20 KT AFTER MIDNIGHT. SEAS 7 FT.
.WED...S WIND 20 KT. SEAS 5 FT.
.WED NIGHT...S WIND 20 KT BECOMING SE 30 KT AFTER MIDNIGHT. SEAS 7 FT.
.THU...E WIND 35 KT. SEAS 14 FT.
.THU NIGHT...E WIND 30 KT. SEAS 13 FT.
.FRI THROUGH SUN...N WIND 25 KT. SEAS 10 FT.

$$

PKZ176-031200-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
329 PM AKDT TUE MAY 2 2017

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...W WIND 15 KT. SEAS 6 FT.
.WED...SW WIND 20 KT. SEAS 5 FT.
.WED NIGHT...SE WIND 30 KT INCREASING TO 40 KT AFTER MIDNIGHT.
SEAS 8 FT BUILDING TO 13 FT AFTER MIDNIGHT. RAIN.
.THU...SE WIND 40 KT. SEAS 17 FT.
.THU NIGHT...SE WIND 25 KT. SEAS 13 FT.
.FRI...NE WIND 20 KT. SEAS 12 FT.
.SAT THROUGH SUN...NW WIND 25 KT. SEAS 9 FT.

$$

PKZ177-031200-
ADAK TO KISKA-
329 PM AKDT TUE MAY 2 2017

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...S WIND INCREASING TO 30 KT. SEAS 9 FT.
.WED...S WIND 25 KT. SEAS 9 FT.
.WED NIGHT...SE WIND 30 KT BECOMING E 40 KT AFTER MIDNIGHT PACIFIC
SIDE. BERING SIDE, SEAS 9 FT. PACIFIC SIDE, SEAS 11 FT BUILDING TO 
16 FT AFTER MIDNIGHT.
.THU...E WIND 40 KT. SEAS 17 FT.
.THU NIGHT...NE WIND 30 KT. SEAS 13 FT.
.FRI THROUGH SAT...N WIND 30 KT. SEAS 13 FT.
.SUN...NW WIND 25 KT. SEAS 10 FT.

$$

PKZ178-031200-
KISKA TO ATTU-
329 PM AKDT TUE MAY 2 2017

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 35 KT. SEAS 12 FT.
.WED...S WIND 30 KT. SEAS 12 FT.
.WED NIGHT...E WIND 30 KT. SEAS 10 FT.
.THU AND THU NIGHT...NE WIND 30 KT. SEAS 14 FT.
.FRI THROUGH SAT...N WIND 30 KT. SEAS 12 FT.
.SUN...W WIND 20 KT. SEAS 9 FT.

$$

PKZ179-031200-
PRIBILOF ISLANDS NEAR SHORE WATERS-
329 PM AKDT TUE MAY 2 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW WIND 25 KT. SEAS 7 FT.
.WED...NW WIND 15 KT. SEAS 4 FT.
.WED NIGHT...VARIABLE WIND 10 KT BECOMING S AFTER MIDNIGHT. SEAS 3 
FT.
.THU...SE WIND 20 KT. SEAS 5 FT.
.THU NIGHT...E WIND 30 KT. SEAS 9 FT.
.FRI...E WIND 30 KT. SEAS 12 FT.
.SAT THROUGH SUN...N WIND 20 KT. SEAS 8 FT.

$$

PKZ180-031200-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
329 PM AKDT TUE MAY 2 2017

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

.TONIGHT...NW WIND 25 KT. SEAS 5 FT.
.WED...NW WIND 30 KT. SEAS 7 FT.
.WED NIGHT...NW WIND 25 KT DIMINISHING. SEAS 7 FT.
.THU...NW WIND 20 KT. SEAS 4 FT.
.THU NIGHT...N WIND 15 KT. SEAS 3 FT.
.FRI THROUGH SAT...E WIND 25 KT. SEAS 8 FT.
.SUN...NE WIND 20 KT. SEAS 5 FT.

$$

PKZ181-031200-
NORTH AND WEST OF NUNIVAK ISLAND-
329 PM AKDT TUE MAY 2 2017

.TONIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.WED...NW WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.WED NIGHT...NW WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.THU...N WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.
.THU NIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.FRI THROUGH SAT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.SUN...NE WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ185-031200-
SAINT MATTHEW ISLAND WATERS-
329 PM AKDT TUE MAY 2 2017

.TONIGHT...NW WIND 20 KT E OF SAINT MATTHEW ISLAND... VARIABLE 10
KT W OF SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 3 FT.
.WED...NW WIND 15 KT E OF SAINT MATTHEW ISLAND... SE 20 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 3 FT.
.WED NIGHT...VARIABLE WIND 10 KT E OF SAINT MATTHEW ISLAND... E
20 KT W OF SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 7 FT.
.THU AND THU NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.FRI THROUGH SAT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.
.SUN...N WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT.

$$

118 
FZAK52 PAFC 031132
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
332 AM AKDT WED MAY 3 2017

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.

PKZ199-040015-
332 AM AKDT WED MAY 3 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A FRONT OVER THE WESTERN BERING WILL DISSIPATE THIS EVENING. A 
DEVELOPING NORTH PACIFIC LOW WILL MOVE TO 390 NM SOUTHWEST OF ADAK AT
975 MB TONIGHT...THEN MOVE TO 260 NM SOUTH OF ADAK AT 976 MB THU 
NIGHT. AN ASSOCIATED FRONT OVER THE NORTH PACIFIC WILL MOVE NORTH AND
EXTEND ALONG THE ALEUTIANS AND SOUTHERN BERING THIS EVENING THROUGH 
THU NIGHT. 

$$

PKZ150-040015-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
332 AM AKDT WED MAY 3 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW WIND 35 KT. GUSTS TO 50 KT OUT OF BAYS AND PASSES.
SEAS 14 FT.
.TONIGHT...NW WIND 35 KT. GUSTS TO 50 KT OUT OF BAYS AND PASSES. 
SEAS 13 FT.
.THU...NW WIND 30 KT. SEAS 10 FT.
.THU NIGHT...W WIND 20 KT. SEAS 6 FT.
.FRI THROUGH SAT...SE WIND 25 KT. SEAS 11 FT.
.SUN...S WIND 15 KT. SEAS 10 FT.

$$

PKZ155-040015-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
332 AM AKDT WED MAY 3 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW WIND 35 KT. GUSTS TO 50 KT OUT OF BAYS AND PASSES. 
SEAS 10 FT.
.TONIGHT...NW WIND 30 KT DIMINISHING TO 20 KT AFTER MIDNIGHT. FROM 
THE SHUMAGIN ISLANDS E...NW WIND 35 KT WITH GUSTS TO 50 KT OUT OF 
BAYS AND PASSES IN THE EVENING. SEAS 10 FT.
.THU...W WIND 15 KT EXCEPT NW 25 KT FROM THE SHUMAGIN ISLANDS E.
SEAS 6 FT.
.THU NIGHT...S WIND 30 KT. SEAS 8 FT.
.FRI...SE WIND 30 KT. SEAS 13 FT.
.SAT...SE WIND 15 KT. SEAS 14 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 9 FT.

$$

PKZ160-040015-
BRISTOL BAY-
332 AM AKDT WED MAY 3 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW WIND 35 KT. SEAS 9 FT.
.TONIGHT...NW WIND 35 KT. SEAS 10 FT. 
.THU...NW WIND 25 KT. SEAS 7 FT.
.THU NIGHT...SW WIND 15 KT. SEAS 3 FT.
.FRI...E WIND 30 KT. SEAS 6 FT.
.SAT...E WIND 25 KT. SEAS 4 FT.
.SUN...E WIND 20 KT. SEAS 3 FT.

$$

PKZ165-040015-
PORT HEIDEN TO CAPE SARICHEF-
332 AM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW WIND 30 KT. SEAS 9 FT.
.TONIGHT...NW WIND 25 KT DIMINISHING TO 15 KT AFTER MIDNIGHT. 
FROM PORT MOLLER E...NW WIND 30 KT. SEAS 9 FT. PATCHY FOG.
.THU...NE WIND 15 KT EXCEPT NW 20 KT FROM PORT MOLLER E. 
SEAS 6 FT. PATCHY FOG.
.THU NIGHT...E WIND 30 KT. SEAS 5 FT.
.FRI...SE WIND 30 KT. SEAS 7 FT.
.SAT...E WIND 20 KT. SEAS 5 FT.
.SUN...N WIND 15 KT. SEAS 5 FT.

$$

PKZ170-040015-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
332 AM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY TODAY AND THURSDAY...

.TODAY...NW WIND 25 KT. SEAS 8 FT.
.TONIGHT...W WIND 15 KT BECOMING SE AFTER MIDNIGHT. SEAS 5 FT.
PATCHY FOG.
.THU...SE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. 
SEAS 6 FT. PATCHY FOG.
.THU NIGHT...E WIND 40 KT. SEAS 10 FT.
.FRI...SE WIND 40 KT. SEAS 11 FT.
.SAT...E WIND 20 KT. SEAS 7 FT.
.SUN...N WIND 25 KT. SEAS 7 FT.

$$

PKZ171-040015-
UNALASKA BAY-
332 AM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW WIND 25 KT. SEAS 8 FT. PATCHY FOG.
.TONIGHT...NW WIND 10 KT IN THE EVENING BECOMING VARIABLE LESS
THAN 10 KT. SEAS 3 FT. PATCHY FOG.
.THU...SE WIND 20 KT. SEAS 3 FT. PATCHY FOG.
.THU NIGHT...SE WIND 30 KT. SEAS 5 FT.
.FRI...SE WIND 30 KT. SEAS 4 FT.
.SAT...E WIND 15 KT. SEAS 2 FT.
.SUN...NW WIND 10 KT. SEAS 3 FT.

$$

PKZ172-040015-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
332 AM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY...

.TODAY...NW WIND 25 KT. SEAS 7 FT.
.TONIGHT...W WIND 20 KT BECOMING S AFTER MIDNIGHT. SEAS 5 FT.
.THU...SE WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. 
SEAS 5 FT BUILDING TO 9 FT IN THE AFTERNOON.
.THU NIGHT...SE WIND 35 KT. SEAS 13 FT.
.FRI...SE WIND 30 KT. SEAS 17 FT.
.SAT...SE WIND 20 KT. SEAS 16 FT.
.SUN...N WIND 25 KT. SEAS 7 FT.

$$

PKZ173-040015-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
332 AM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND 15 KT. SEAS 6 FT.
.TONIGHT...SE WIND 25 KT. SEAS 6 FT.
.THU...E WIND 40 KT. SEAS 10 FT BUILDING TO 15 FT IN THE
AFTERNOON. RAIN.
.THU NIGHT...E WIND 35 KT. SEAS 15 FT.
.FRI...E WIND 30 KT. SEAS 11 FT.
.SAT...NE WIND 20 KT. SEAS 9 FT.
.SUN...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ174-040015-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
332 AM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY...

.TODAY...W WIND 20 KT. SEAS 6 FT.
.TONIGHT...S WIND 20 KT BECOMING SE 30 KT AFTER MIDNIGHT. 
SEAS 8 FT.
.THU...SE WIND 40 KT. SEAS 15 FT. WIDESPREAD RAIN SHOWERS.
.THU NIGHT...SE WIND 30 KT. SEAS 14 FT.
.FRI...SE WIND 25 KT. SEAS 16 FT.
.SAT...E WIND 20 KT. SEAS 12 FT.
.SUN...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ175-040015-
SEGUAM ISLAND TO ADAK BERING SIDE-
332 AM AKDT WED MAY 3 2017

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...S WIND 25 KT. SEAS 5 FT.
.TONIGHT...SE WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT. 
SEAS 8 FT.
.THU...E WIND 40 KT. SEAS 15 FT. WIDESPREAD RAIN SHOWERS.
.THU NIGHT...E WIND 30 KT. SEAS 13 FT.
.FRI...NE WIND 30 KT. SEAS 13 FT.
.SAT...N WIND 30 KT. SEAS 11 FT.
.SUN...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ176-040015-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
332 AM AKDT WED MAY 3 2017

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...SW WIND 20 KT. SEAS 6 FT.
.TONIGHT...SE WIND 30 KT INCREASING TO 45 KT AFTER MIDNIGHT. 
SEAS 8 FT BUILDING TO 15 FT AFTER MIDNIGHT. RAIN.
.THU...SE WIND 40 KT DIMINISHING TO 30 KT IN THE AFTERNOON. 
SEAS 18 FT. RAIN.
.THU NIGHT...SE WIND 25 KT. SEAS 13 FT.
.FRI...NE WIND 25 KT. SEAS 13 FT.
.SAT THROUGH SUN...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ177-040015-
ADAK TO KISKA-
332 AM AKDT WED MAY 3 2017

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...S WIND 30 KT. SEAS 10 FT.
.TONIGHT...E WIND 40 KT. BERING SIDE...SEAS 10 FT. PACIFIC 
SIDE...SEAS 11 FT BUILDING TO 17 FT AFTER MIDNIGHT.
.THU...E WIND 40 KT. SEAS 17 FT. RAIN.
.THU NIGHT...NE WIND 25 KT. SEAS 13 FT.
.FRI...N WIND 35 KT. SEAS 18 FT.
.SAT...N WIND 30 KT. SEAS 15 FT.
.SUN...NW WIND 25 KT. SEAS 10 FT.

$$

PKZ178-040015-
KISKA TO ATTU-
332 AM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY...

.TODAY...S WIND 30 KT. SEAS 13 FT. RAIN.
.TONIGHT...E WIND 30 KT. SEAS 11 FT.
.THU...NE WIND 35 KT. SEAS 13 FT.
.THU NIGHT...NE WIND 30 KT. SEAS 13 FT.
.FRI THROUGH SAT...N WIND 30 KT. SEAS 15 FT.
.SUN...SE WIND 20 KT. SEAS 10 FT.

$$

PKZ179-040015-
PRIBILOF ISLANDS NEAR SHORE WATERS-
332 AM AKDT WED MAY 3 2017

.TODAY...NW WIND 15 KT. SEAS 4 FT.
.TONIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU...SE WIND 20 KT. SEAS 5 FT.
.THU NIGHT...E WIND 30 KT. SEAS 10 FT.
.FRI...E WIND 35 KT. SEAS 13 FT.
.SAT...NE WIND 20 KT. SEAS 7 FT.
.SUN...N WIND 20 KT. SEAS 6 FT.

$$

PKZ180-040015-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
332 AM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW WIND 30 KT. SEAS 7 FT.
.TONIGHT...NW WIND 30 KT. SEAS 7 FT. PATCHY FREEZING FOG.
.THU...NW WIND 20 KT. SEAS 5 FT. PATCHY FREEZING FOG.
.THU NIGHT...N WIND 15 KT. SEAS 3 FT.
.FRI THROUGH SAT...E WIND 25 KT. SEAS 7 FT.
.SUN...NE WIND 15 KT. SEAS 4 FT.

$$

PKZ181-040015-
NORTH AND WEST OF NUNIVAK ISLAND-
332 AM AKDT WED MAY 3 2017

.TODAY...NW WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT. 
FREEZING SPRAY.
.TONIGHT...NW WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT. 
FREEZING SPRAY AND PATCHY FREEZING FOG.
.THU...N WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.
.THU NIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.
.FRI...NE WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.SAT THROUGH SUN...N WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.

$$

PKZ185-040015-
SAINT MATTHEW ISLAND WATERS-
332 AM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...E OF SAINT MATTHEW ISLAND, NW WIND 15 KT. W OF SAINT
MATTHEW ISLAND...S WIND 15 KT BECOMING SE 25 KT IN THE AFTERNOON. 
SEAS IN ICE FREE WATERS 3 FT.
.TONIGHT...VARIABLE WIND 10 KT E OF SAINT MATTHEW ISLAND...E 25 KT
W OF SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 7 FT. RAIN.
.THU...E WIND 15 KT E OF SAINT MATTHEW ISLAND...E 25 KT W OF SAINT
MATTHEW ISLAND. SEAS IN ICE FREE WATERS 8 FT. RAIN.
.THU NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.FRI THROUGH SAT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.SUN...N WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT.

$$

401 
FZAK52 PAFC 032325
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
325 PM AKDT WED MAY 3 2017

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.

PKZ199-041215-
325 PM AKDT WED MAY 3 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A FRONT OVER THE FAR WESTERN BERING WILL DISSIPATE THIS EVENING. 
A DEVELOPING 983 MB NORTH PACIFIC LOW 390 NM SOUTH OF SHEMYA WILL
REMAIN MOSTLY STATIONARY THROUGH EARLY THU MORNING WHILE 
DEEPENING TO 973 MB. THE LOW WILL THEN TRACK TO 130 NM SOUTHEAST 
OF ATKA AT 979 MB BY FRI AFTERNOON. AN ASSOCIATED FRONT OVER THE 
NORTH PACIFIC WILL MOVE NORTH AND EXTEND ALONG THE ALEUTIANS AND 
SOUTHERN BERING THIS EVENING THROUGH THU NIGHT.

$$

PKZ150-041215-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
325 PM AKDT WED MAY 3 2017

...GALE WARNING TONIGHT...

.TONIGHT...NW WIND 35 KT WITH HIGHER GUSTS OUT OF BAYS AND PASSES. 
SEAS 12 FT.
.THU...NW WIND 30 KT. SEAS 10 FT.
.THU NIGHT...W WIND 20 KT. SEAS 5 FT.
.FRI...SE WIND 30 KT. SEAS 9 FT.
.FRI NIGHT...SE WIND 25 KT. SEAS 11 FT.
.SAT...E WIND 25 KT. SEAS 11 FT.
.SUN...S WIND 15 KT. SEAS 10 FT.
.MON...E WIND 15 KT. SEAS 9 FT.

$$

PKZ155-041215-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
325 PM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...NW WIND 30 KT DIMINISHING. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 6 FT.
.THU NIGHT...SE WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT.
FROM THE SHUMAGIN ISLANDS E, SW WIND 15 KT BECOMING S 25 KT AFTER 
MIDNIGHT. SEAS 4 FT BUILDING TO 8 FT AFTER MIDNIGHT. RAIN.
.FRI...SE WIND 30 KT. SEAS 12 FT.
.FRI NIGHT...SE WIND 20 KT. SEAS 12 FT.
.SAT...SE WIND 15 KT. SEAS 14 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 9 FT.
.MON...N WIND 15 KT. SEAS 8 FT.

$$

PKZ160-041215-
BRISTOL BAY-
325 PM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW WIND 30 KT. SEAS 9 FT. PATCHY FOG.
.THU...NW WIND 20 KT. SEAS 6 FT.
.THU NIGHT...W WIND 15 KT DIMINISHING. SEAS 3 FT.
.FRI...E WIND 25 KT. SEAS 5 FT.
.FRI NIGHT...E WIND 30 KT. SEAS 6 FT.
.SAT...E WIND 25 KT. SEAS 4 FT.
.SUN...E WIND 20 KT. SEAS 3 FT.
.MON...E WIND 10 KT. SEAS 2 FT.

$$

PKZ165-041215-
PORT HEIDEN TO CAPE SARICHEF-
325 PM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY NIGHT...

.TONIGHT...NW WIND 20 KT EXCEPT NW 30 KT FROM PORT MOLLER E. SEAS
9 FT. PATCHY FOG.
.THU...NW WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.THU NIGHT...E WIND 20 KT INCREASING TO 30 KT AFTER MIDNIGHT. FROM
PORT MOLLER E, VARIABLE WIND 10 KT BECOMING E 20 KT AFTER
MIDNIGHT. SEAS 5 FT.
.FRI...E WIND 30 KT. SEAS 7 FT.
.FRI NIGHT...SE WIND 25 KT. SEAS 6 FT.
.SAT...E WIND 20 KT. SEAS 5 FT.
.SUN THROUGH MON...N WIND 15 KT. SEAS 5 FT.

$$

PKZ170-041215-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
325 PM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...NW WIND 10 KT BECOMING SE AFTER MIDNIGHT. SEAS 5 FT. 
PATCHY FOG.
.THU...SE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS
6 FT.
.THU NIGHT...E WIND 40 KT. SEAS 10 FT. RAIN.
.FRI...SE WIND 40 KT. SEAS 12 FT.
.FRI NIGHT...SE WIND 25 KT. SEAS 8 FT.
.SAT...E WIND 20 KT. SEAS 7 FT.
.SUN THROUGH MON...NW WIND 25 KT. SEAS 7 FT.

$$

PKZ171-041215-
UNALASKA BAY-
325 PM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...NW WIND 10 KT IN THE EVENING BECOMING VARIABLE LESS
THAN 10 KT. SEAS 3 FT. PATCHY FOG.
.THU...SE WIND 20 KT. SEAS 3 FT.
.THU NIGHT...SE WIND 30 KT. SEAS 5 FT. RAIN.
.FRI...SE WIND 30 KT. SEAS 4 FT.
.FRI NIGHT...SE WIND 20 KT. SEAS 3 FT.
.SAT...E WIND 15 KT. SEAS 2 FT.
.SUN...NW WIND 10 KT. SEAS 3 FT.
.MON...NW WIND 15 KT. SEAS 5 FT.

$$

PKZ172-041215-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
325 PM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...W WIND 20 KT BECOMING S AFTER MIDNIGHT. SEAS 5 FT.
.THU...SE WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS 5
FT BUILDING TO 9 FT IN THE AFTERNOON.
.THU NIGHT...SE WIND 35 KT. SEAS 13 FT. RAIN.
.FRI AND FRI NIGHT...SE WIND 30 KT. SEAS 16 FT.
.SAT...SE WIND 20 KT. SEAS 16 FT.
.SUN THROUGH MON...NW WIND 25 KT. SEAS 7 FT.

$$

PKZ173-041215-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
325 PM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SE WIND 25 KT. SEAS 6 FT.
.THU...E WIND 40 KT. SEAS 14 FT. RAIN.
.THU NIGHT...E WIND 35 KT. SEAS 14 FT. RAIN.
.FRI...SE WIND 30 KT. SEAS 13 FT.
.FRI NIGHT...E WIND 25 KT. SEAS 11 FT.
.SAT...NE WIND 20 KT. SEAS 9 FT.
.SUN THROUGH MON...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ174-041215-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
325 PM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY...

.TONIGHT...S WIND 20 KT BECOMING SE 30 KT AFTER MIDNIGHT. SEAS 4
FT BUILDING TO 8 FT AFTER MIDNIGHT.
.THU...SE WIND 40 KT. SEAS 15 FT. RAIN.
.THU NIGHT...SE WIND 30 KT. SEAS 13 FT. RAIN.
.FRI AND FRI NIGHT...SE WIND 25 KT. SEAS 15 FT.
.SAT...NE WIND 20 KT. SEAS 12 FT.
.SUN THROUGH MON...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ175-041215-
SEGUAM ISLAND TO ADAK BERING SIDE-
325 PM AKDT WED MAY 3 2017

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SE WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT. SEAS
8 FT.
.THU...E WIND 40 KT. SEAS 14 FT. RAIN.
.THU NIGHT...E WIND 30 KT. SEAS 12 FT. RAIN.
.FRI AND FRI NIGHT...NE WIND 30 KT. SEAS 18 FT.
.SAT...N WIND 30 KT. SEAS 14 FT.
.SUN THROUGH MON...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ176-041215-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
325 PM AKDT WED MAY 3 2017

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SE WIND 30 KT INCREASING TO 45 KT AFTER MIDNIGHT. SEAS
8 FT BUILDING TO 14 FT AFTER MIDNIGHT. RAIN.
.THU...SE WIND 45 KT DIMINISHING TO 25 KT IN THE AFTERNOON. SEAS 17 
FT SUBSIDING TO 12 FT. RAIN.
.THU NIGHT...E WIND 25 KT DIMINISHING TO 10 KT AFTER MIDNIGHT. SEAS 
12 FT. RAIN.
.FRI...N WIND 15 KT. SEAS 12 FT.
.FRI NIGHT...N WIND 25 KT. SEAS 12 FT.
.SAT THROUGH MON...W WIND 25 KT. SEAS 8 FT.

$$

PKZ177-041215-
ADAK TO KISKA-
325 PM AKDT WED MAY 3 2017

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...E WIND 40 KT. SEAS 15 FT.
.THU...E WIND 40 KT. SEAS 17 FT. RAIN.
.THU NIGHT...NE WIND 25 KT. SEAS 13 FT.
.FRI AND FRI NIGHT...N WIND 35 KT. SEAS 17 FT.
.SAT...N WIND 30 KT. SEAS 15 FT.
.SUN...NW WIND 25 KT. SEAS 10 FT.
.MON...S WIND 20 KT. SEAS 6 FT.

$$

PKZ178-041215-
KISKA TO ATTU-
325 PM AKDT WED MAY 3 2017

...GALE WARNING THURSDAY...

.TONIGHT...E WIND 30 KT. SEAS 11 FT.
.THU...NE WIND 35 KT. SEAS 13 FT.
.THU NIGHT...NE WIND 30 KT. SEAS 13 FT.
.FRI AND FRI NIGHT...N WIND 30 KT. SEAS 14 FT.
.SAT...N WIND 30 KT. SEAS 14 FT.
.SUN THROUGH MON...SE WIND 20 KT. SEAS 10 FT.

$$

PKZ179-041215-
PRIBILOF ISLANDS NEAR SHORE WATERS-
325 PM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...VARIABLE WIND BECOMING S 10 KT. SEAS 3 FT.
.THU...SE WIND 20 KT. SEAS 5 FT.
.THU NIGHT...E WIND 30 KT. SEAS 9 FT.
.FRI...NE WIND 35 KT. SEAS 12 FT.
.FRI NIGHT...E WIND 30 KT. SEAS 11 FT.
.SAT...NE WIND 20 KT. SEAS 7 FT.
.SUN THROUGH MON...N WIND 20 KT. SEAS 6 FT.

$$

PKZ180-041215-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
325 PM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW WIND 30 KT. SEAS 7 FT. PATCHY FOG.
.THU...NW WIND 20 KT. SEAS 4 FT.
.THU NIGHT...N WIND 15 KT. SEAS 3 FT.
.FRI AND FRI NIGHT...E WIND 30 KT. SEAS 8 FT.
.SAT...E WIND 25 KT. SEAS 6 FT.
.SUN THROUGH MON...N WIND 15 KT. SEAS 4 FT.

$$

PKZ181-041215-
NORTH AND WEST OF NUNIVAK ISLAND-
325 PM AKDT WED MAY 3 2017

.TONIGHT...NW WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT. PATCHY FOG.
.THU...N WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.
.THU NIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT. FREEZING
SPRAY.
.FRI AND FRI NIGHT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT.
.SAT THROUGH MON...N WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.

$$

PKZ185-041215-
SAINT MATTHEW ISLAND WATERS-
325 PM AKDT WED MAY 3 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TONIGHT...VARIABLE WIND 10 KT E OF SAINT MATTHEW ISLAND...E 25 KT
W OF SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 7 FT. RAIN.
.THU...E WIND 15 KT E OF SAINT MATTHEW ISLAND...E 25 KT W OF SAINT
MATTHEW ISLAND. SEAS IN ICE FREE WATERS 7 FT. RAIN.
.THU NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.FRI...NE WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT.
.FRI NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.SAT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.SUN...N WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT.
.MON...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

712 
FZAK52 PAFC 041147
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
347 AM AKDT THU MAY 4 2017

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.

PKZ199-050045-
347 AM AKDT THU MAY 4 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 975 MB LOW 370 NM SOUTHWEST OF ADAK WILL MOVE TO 220 NM SOUTH OF
ADAK AT 977 MB TONIGHT...THEN MOVE TO 175 NM EAST OF ADAK AT 982 
MB FRI NIGHT. AN ASSOCIATED FRONT OVER THE NORTH PACIFIC WILL MOVE
NORTH AND EXTEND ALONG THE ALEUTIANS AND SOUTHERN BERING TODAY 
THROUGH THU NIGHT...THEN MOVE TO THE CENTRAL AND WESTERN BERING 
FRI THROUGH FRI NIGHT. 

$$

PKZ150-050045-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
347 AM AKDT THU MAY 4 2017

...GALE WARNING FRIDAY...

.TODAY...NW WIND 30 KT. SEAS 10 FT.
.TONIGHT...W WIND 20 KT IN THE EVENING BECOMING VARIABLE 10 KT.
SEAS 6 FT.
.FRI...SE WIND 35 KT. SEAS 5 FT BUILDING TO 10 FT IN THE
AFTERNOON. RAIN.
.FRI NIGHT...SE WIND 30 KT. SEAS 10 FT.
.SAT...SE WIND 20 KT. SEAS 10 FT.
.SUN...S WIND 15 KT. SEAS 10 FT.
.MON...NE WIND 15 KT. SEAS 9 FT.

$$

PKZ155-050045-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
347 AM AKDT THU MAY 4 2017

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...W WIND 15 KT. FROM THE SHUMAGIN ISLANDS E...NW WIND 30 KT 
BECOMING W 15 KT IN THE AFTERNOON. SEAS 6 FT.
.TONIGHT...SE WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT. FROM
THE SHUMAGIN ISLANDS E...VARIABLE WIND 10 KT BECOMING SE 25 KT AFTER
MIDNIGHT. SEAS 4 FT BUILDING TO 9 FT AFTER MIDNIGHT.
.FRI...SE WIND 35 KT BECOMING S 20 KT IN THE AFTERNOON. FROM THE
SHUMAGIN ISLANDS E...SE WIND 35 KT. SEAS 12 FT. RAIN.
.FRI NIGHT...SE WIND 25 KT. SEAS 12 FT.
.SAT...SE WIND 15 KT. SEAS 12 FT.
.SUN...W WIND 20 KT. SEAS 9 FT.
.MON...NW WIND 20 KT. SEAS 8 FT.

$$

PKZ160-050045-
BRISTOL BAY-
347 AM AKDT THU MAY 4 2017

...SMALL CRAFT ADVISORY TODAY AND FRIDAY...

.TODAY...NW WIND 25 KT. SEAS 7 FT.
.TONIGHT...W WIND 15 KT BECOMING S AFTER MIDNIGHT. SEAS 4 FT.
PATCHY FOG.
.FRI...E WIND 30 KT. SEAS 6 FT. PATCHY FOG.
.FRI NIGHT...E WIND 35 KT. SEAS 7 FT.
.SAT...E WIND 25 KT. SEAS 4 FT.
.SUN...E WIND 20 KT. SEAS 3 FT.
.MON...NE WIND 10 KT. SEAS 2 FT.

$$

PKZ165-050045-
PORT HEIDEN TO CAPE SARICHEF-
347 AM AKDT THU MAY 4 2017

...GALE WARNING FRIDAY...

.TODAY...NE WIND 15 KT EXCEPT NW 20 KT FROM PORT MOLLER E. 
SEAS 5 FT.
.TONIGHT...E WIND 30 KT. FROM PORT MOLLER E...VARIABLE WIND 10 KT 
BECOMING E 20 KT AFTER MIDNIGHT. SEAS 6 FT.
.FRI...E WIND 35 KT. SEAS 8 FT.
.FRI NIGHT...SE WIND 30 KT. SEAS 6 FT.
.SAT...E WIND 15 KT. SEAS 4 FT.
.SUN THROUGH MON...NW WIND 20 KT. SEAS 5 FT.

$$

PKZ170-050045-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
347 AM AKDT THU MAY 4 2017

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...SE WIND 20 KT BECOMING E 30 KT IN THE AFTERNOON. 
SEAS 6 FT.
.TONIGHT...E WIND 40 KT. SEAS 11 FT. WIDESPREAD RAIN SHOWERS.
.FRI...SE WIND 40 KT DIMINISHING TO 25 KT IN THE AFTERNOON. 
SEAS 12 FT. RAIN.
.FRI NIGHT...SE WIND 25 KT. SEAS 8 FT.
.SAT...E WIND 20 KT. SEAS 7 FT.
.SUN THROUGH MON...NW WIND 25 KT. SEAS 7 FT.

$$

PKZ171-050045-
UNALASKA BAY-
347 AM AKDT THU MAY 4 2017

...GALE WARNING TONIGHT...

.TODAY...SE WIND 20 KT. SEAS 3 FT.
.TONIGHT...SE WIND 30 KT BECOMING E 40 KT AFTER MIDNIGHT. 
SEAS 6 FT. RAIN.
.FRI...SE WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. 
SEAS 5 FT SUBSIDING TO 3 FT IN THE AFTERNOON. WIDESPREAD RAIN 
SHOWERS.
.FRI NIGHT...SE WIND 25 KT. SEAS 4 FT.
.SAT...E WIND 15 KT. SEAS 2 FT.
.SUN...NW WIND 20 KT. SEAS 5 FT.
.MON...NW WIND 15 KT. SEAS 5 FT.

$$

PKZ172-050045-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
347 AM AKDT THU MAY 4 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. 
SEAS 5 FT BUILDING TO 9 FT IN THE AFTERNOON.
.TONIGHT...SE WIND 40 KT. SEAS 14 FT. WIDESPREAD RAIN SHOWERS.
.FRI...S WIND 30 KT. SEAS 13 FT. RAIN SHOWERS.
.FRI NIGHT...SE WIND 30 KT. SEAS 16 FT.
.SAT...E WIND 20 KT. SEAS 15 FT.
.SUN THROUGH MON...NW WIND 25 KT. SEAS 7 FT.

$$

PKZ173-050045-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
347 AM AKDT THU MAY 4 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...E WIND 40 KT. SEAS 13 FT. WIDESPREAD RAIN SHOWERS.
.TONIGHT...E WIND 35 KT. SEAS 13 FT. WIDESPREAD RAIN SHOWERS.
.FRI...SE WIND 30 KT BECOMING E 20 KT IN THE AFTERNOON. 
SEAS 12 FT. RAIN SHOWERS.
.FRI NIGHT...E WIND 20 KT. SEAS 10 FT.
.SAT...NE WIND 20 KT. SEAS 9 FT.
.SUN THROUGH MON...W WIND 25 KT. SEAS 8 FT.

$$

PKZ174-050045-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
347 AM AKDT THU MAY 4 2017

...GALE WARNING TODAY...

.TODAY...SE WIND 40 KT. SEAS 14 FT. WIDESPREAD RAIN SHOWERS.
.TONIGHT...SE WIND 30 KT. SEAS 13 FT. WIDESPREAD RAIN SHOWERS.
.FRI...E WIND 25 KT. SEAS 12 FT.
.FRI NIGHT...S WIND 25 KT. SEAS 15 FT.
.SAT...NE WIND 20 KT. SEAS 12 FT.
.SUN THROUGH MON...W WIND 25 KT. SEAS 8 FT.

$$

PKZ175-050045-
SEGUAM ISLAND TO ADAK BERING SIDE-
347 AM AKDT THU MAY 4 2017

...GALE WARNING TODAY AND FRIDAY...

.TODAY...E WIND 40 KT. SEAS 14 FT. RAIN.
.TONIGHT...E WIND 30 KT. SEAS 12 FT. RAIN SHOWERS.
.FRI...NE WIND 35 KT. SEAS 17 FT. RAIN.
.FRI NIGHT...NE WIND 35 KT. SEAS 17 FT.
.SAT...N WIND 30 KT. SEAS 14 FT.
.SUN...NW WIND 25 KT. SEAS 10 FT.
.MON...SW WIND 20 KT. SEAS 8 FT.

$$

PKZ176-050045-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
347 AM AKDT THU MAY 4 2017

...GALE WARNING TODAY...

.TODAY...SE WIND 45 KT DIMINISHING TO 25 KT IN THE AFTERNOON. 
SEAS 16 FT. RAIN.
.TONIGHT...E WIND 25 KT. SEAS 13 FT. RAIN SHOWERS.
.FRI...VARIABLE WIND 10 KT BECOMING NW 20 KT IN THE AFTERNOON.
SEAS 12 FT.
.FRI NIGHT...N WIND 25 KT. SEAS 11 FT.
.SAT...N WIND 30 KT. SEAS 9 FT.
.SUN...NW WIND 25 KT. SEAS 7 FT.
.MON...SW WIND 20 KT. SEAS 7 FT.

$$

PKZ177-050045-
ADAK TO KISKA-
347 AM AKDT THU MAY 4 2017

...GALE WARNING TODAY AND FRIDAY...

.TODAY...E WIND 40 KT. SEAS 17 FT. RAIN.
.TONIGHT...NE WIND 30 KT. SEAS 13 FT.
.FRI...N WIND 40 KT. SEAS 16 FT. RAIN SHOWERS.
.FRI NIGHT...N WIND 40 KT. SEAS 20 FT.
.SAT...N WIND 35 KT. SEAS 17 FT.
.SUN...NW WIND 25 KT. SEAS 9 FT.
.MON...SE WIND 20 KT. SEAS 7 FT.

$$

PKZ178-050045-
KISKA TO ATTU-
347 AM AKDT THU MAY 4 2017

...GALE WARNING TODAY...

.TODAY...NE WIND 35 KT. SEAS 13 FT.
.TONIGHT...NE WIND 30 KT. SEAS 13 FT.
.FRI...N WIND 30 KT. SEAS 13 FT.
.FRI NIGHT...N WIND 30 KT. SEAS 13 FT.
.SAT...N WIND 30 KT. SEAS 13 FT.
.SUN THROUGH MON...SE WIND 20 KT. SEAS 9 FT.

$$

PKZ179-050045-
PRIBILOF ISLANDS NEAR SHORE WATERS-
347 AM AKDT THU MAY 4 2017

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...E WIND 20 KT. SEAS 5 FT.
.TONIGHT...E WIND 35 KT. SEAS 9 FT.
.FRI...E WIND 40 KT. SEAS 13 FT. RAIN.
.FRI NIGHT...E WIND 30 KT. SEAS 12 FT.
.SAT...NE WIND 20 KT. SEAS 7 FT.
.SUN THROUGH MON...NW WIND 20 KT. SEAS 6 FT.

$$

PKZ180-050045-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
347 AM AKDT THU MAY 4 2017

...GALE WARNING FRIDAY...

.TODAY...NW WIND 20 KT. SEAS 5 FT.
.TONIGHT...NE WIND 20 KT. SEAS 3 FT. PATCHY FOG.
.FRI...E WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. 
SEAS 8 FT.
.FRI NIGHT...E WIND 35 KT. SEAS 9 FT.
.SAT...E WIND 25 KT. SEAS 6 FT.
.SUN THROUGH MON...N WIND 15 KT. SEAS 4 FT.

$$

PKZ181-050045-
NORTH AND WEST OF NUNIVAK ISLAND-
347 AM AKDT THU MAY 4 2017

...SMALL CRAFT ADVISORY FRIDAY...

.TODAY...N WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.
.TONIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT. 
FREEZING SPRAY.
.FRI...NE WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT.
.FRI NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SAT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.SUN THROUGH MON...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

PKZ185-050045-
SAINT MATTHEW ISLAND WATERS-
347 AM AKDT THU MAY 4 2017

...SMALL CRAFT ADVISORY TODAY AND FRIDAY...

.TODAY...NE WIND 15 KT E OF SAINT MATTHEW ISLAND...E 25 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 7 FT. RAIN.
.TONIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.FRI...NE WIND 30 KT. SEAS IN ICE FREE WATERS 8 FT.
.FRI NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 9 FT.
.SAT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.SUN...N WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT.
.MON...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
446 AM AKDT Mon May 1 2017

.ANALYSIS AND UPPER LEVELS...
The broad low pressure system over the Eastern Aleutians continues
to gradually move southward into the North Pacific ocean. This is
resulting in northerly winds from the northern Bering extending
southward through the Central/Western Aleutians. Therefore, the
majority of the Bering and the Aleutians will remain under a
showery regime. Meanwhile, the Gulf has an upper level trough
swinging through the northern Gulf producing showers across the
northern coastal communities. This synoptic feature is reflected
by the radar imagery with showers moving through the Prince
William Sound, and along the Eastern Kenai Peninsula. Some of the
showers are spreading over the Aleutian Range into the Bristol Bay
interior. Meanwhile, the Anchorage Bowl, and portions of the
Western Kenai Peninsula remains with downsloped drier conditions.

&&

.MODEL DISCUSSION...
The models remain in good agreement heading into the midweek.
There is a North Pacific low tracking into the lower Gulf by
Tuesday afternoon. The NAM is faster with the progression of this
system, and the GFS/ECMWF are slower with this feature. The
GFS/ECMWF storm track coincides with the jet stream transitioning
to a southerly meridional flow heading into Tuesday. Therefore,
the GFS/ECMWF were the preferred models of choice resulting in
above average forecast confidence through the midweek time-frame.

&&

.AVIATION...
PANC...VFR conditions with light northwesterly wind this morning,
but will shift around to southeasterly flow by this afternoon.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
A new upper level wave pushing through Kodiak Island this morning
will support precipitation across Southcentral today, and tonight
as it pushes northward. The morning sounding at Kodiak indicates
a slightly more moist airmass, and steep lapse rates. With little
CAPE to work with, thunderstorms are not likely, but a strike or
two cannot be ruled out due to easterly flow and orographic
enhancement. Persistent onshore flow will continue to support
shower development throughout the day even as the wave pushes
northward.

While Currently the wave is fairly weak, it is expected to
intensify as it pushes northward toward the northern Gulf of
Alaska coast throughout the day. Showers are expected to form
across the west Kenai Peninsula and Susitna Valley generally south
of Talkeetna by this evening. Models indicate weak CAPE mainly
over mountainous areas in the Susitna Region. The Anchorage
sounding this morning indicates more available moisture at mid-levels
than it has over the past several days and steep lapse rates. As
a result, a lightning strike or two cannot be ruled out for the
Susitna Valley or Kenai Peninsula, but is not likely.

A pattern change is expected by late Tuesday as an unseasonably strong
low pressure system moves from the eastern Gulf into the central
Gulf. The concern with this system is gusty winds nearing storm
force strength, with seas greater than 20 ft. The current track
of the storm does not favor a stronger coastal jet, but a more
northern track could support sustained storm winds.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
The large upper level low has slid east to be centered over the
Alaska Peninsula with its associated cold air aloft extending into
Southwest Alaska, and keeping the area under an unstable and
showery regime. A trough rotating around this low will swing
across Southwest Alaska this afternoon, and evening bringing an
increase in showers and the potential for a few isolated
thunderstorms. The diurnal shower activity will taper off on
Tuesday as the upper low drops south in response to a very strong
low tracking into the Gulf. While precipitation will remain
predominantly to the east of the Alaska, and Aleutian Ranges
northerly winds will increase rapidly Tuesday night and Wednesday
in response to the presence of the deep Gulf low.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
As the upper low over the Alaska Peninsula drops south tonight and
a rather deep surface low tracks north into the Gulf Tuesday and
Wednesday, northerly winds will increase across the eastern
Bering, Bristol Bay and the Alaska Peninsula. Sustained winds
will increase into the 30 to 35 knot range with stronger gusts out
of the gaps, and passes in the Alaska Peninsula Tuesday night and
Wednesday.

Further west, a ridge building into the Western Aleutians today
and tonight will shift east to the Central Aleutians and Bering
Tuesday and Tuesday night. The next incoming low pressure system
will reach the Western Aleutians Tuesday afternoon then proceed
slowly east following behind the ridge. By Wednesday Night, the
ridge will reach the Eastern Aleutians, and then continue to
amplify over the Alaska Peninsula on Thursday as a frontal system
from the south lifts north into the Central Aleutians.

&&

.LONG TERM FORECAST (Days 3 through 7)...
There is fair agreement amongst the models of a deep low moving
into the Gulf around Tuesday evening. However, they are struggling
with the intensity of the low which could be the difference
between a gale force low and a storm force low. For now there is
higher confidence in the low remaining gale force. Regardless,
this system looks to bring rain to areas around Southcentral
Alaska into Thursday, with the heaviest for the north Gulf coast.
Meanwhile ridging will have moved in over the Bering with another
system trying to approach the Aleutians from the west, but being
largely held at bay by the ridge.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...gale...119 120 125 131 351 352.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...PD
SOUTHCENTRAL ALASKA...EN
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JR
LONG TERM...DK