Small Craft Advisory 314, NWS Anchorage, AK

884 
FZAK52 PAFC 172305
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
305 PM AKDT MON APR 17 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.

PKZ199-181215-
305 PM AKDT MON APR 17 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 995 MB LOW 300 NM WEST OF SHEMYA MOVES TO 260 NM WEST OF SHEMYA BY
TUE AFTERNOON. THE LOW DISSIPATES BY WED AFTERNOON.

$$

PKZ150-181215-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
305 PM AKDT MON APR 17 2017

.TONIGHT...NE WIND 10 KT BECOMING NW AFTER MIDNIGHT. SEAS 5 FT.
.TUE...NW WIND 15 KT. SEAS 6 FT.
.TUE NIGHT...NW WIND 10 KT. SEAS 5 FT.
.WED AND WED NIGHT...NE WIND 10 KT. SEAS 5 FT.
.THU...E WIND 25 KT. SEAS 6 FT.
.FRI...NE WIND 25 KT. SEAS 12 FT.
.SAT...NE WIND 20 KT. SEAS 12 FT.

$$

PKZ155-181215-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
305 PM AKDT MON APR 17 2017

.TONIGHT...NE WIND 10 KT. SEAS 6 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 6 FT.
.TUE NIGHT...N WIND 10 KT. SEAS 5 FT.
.WED AND WED NIGHT...N WIND 10 KT. SEAS 5 FT.
.THU...NE WIND 20 KT. SEAS 5 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 10 FT.

$$

PKZ160-181215-
BRISTOL BAY-
305 PM AKDT MON APR 17 2017

.TONIGHT...N WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.TUE...N WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.TUE NIGHT...NW WIND 10 KT. SEAS IN ICE FREE WATERS 1 FT.
.WED AND WED NIGHT...NE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.THU...E WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.FRI THROUGH SAT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ165-181215-
PORT HEIDEN TO CAPE SARICHEF-
305 PM AKDT MON APR 17 2017

.TONIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 3 FT.
.TUE NIGHT...N WIND 15 KT. SEAS 3 FT.
.WED...NW WIND 15 KT. SEAS 4 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU...NE WIND 15 KT. SEAS 3 FT.
.FRI...NE WIND 20 KT. SEAS 4 FT.
.SAT...NE WIND 15 KT. SEAS 6 FT.

$$

PKZ170-181215-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
305 PM AKDT MON APR 17 2017

.TONIGHT...NW WIND 15 KT. SEAS 5 FT.
.TUE...N WIND 15 KT. SEAS 4 FT.
.TUE NIGHT...N WIND 20 KT. SEAS 5 FT.
.WED...N WIND 20 KT. SEAS 5 FT.
.WED NIGHT...N WIND 15 KT. SEAS 4 FT.
.THU...NE WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 6 FT.

$$

PKZ171-181215-
UNALASKA BAY-
305 PM AKDT MON APR 17 2017

.TONIGHT...NW WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT. SEAS
4 FT.
.TUE...N WIND 10 KT. SEAS 3 FT.
.TUE NIGHT...NW WIND 15 KT. SEAS 3 FT.
.WED...N WIND 15 KT. SEAS 4 FT.
.WED NIGHT...N WIND 10 KT. SEAS 3 FT.
.THU THROUGH SAT...NE WIND 10 KT. SEAS 3 FT.

$$

PKZ172-181215-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
305 PM AKDT MON APR 17 2017

.TONIGHT...N WIND 15 KT. SEAS 7 FT.
.TUE AND TUE NIGHT...N WIND 15 KT. SEAS 6 FT.
.WED AND WED NIGHT...N WIND 15 KT. SEAS 6 FT.
.THU...NE WIND 15 KT. SEAS 5 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 8 FT.

$$

PKZ173-181215-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
305 PM AKDT MON APR 17 2017

.TONIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.TUE...NE WIND 15 KT. SEAS 3 FT.
.TUE NIGHT...N WIND 20 KT. SEAS 4 FT.
.WED...N WIND 20 KT. SEAS 4 FT.
.WED NIGHT...N WIND 15 KT. SEAS 5 FT.
.THU...NE WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...E WIND 20 KT. SEAS 9 FT.

$$

PKZ174-181215-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
305 PM AKDT MON APR 17 2017

.TONIGHT...N WIND 10 KT. SEAS 6 FT.
.TUE...NE WIND 15 KT. SEAS 5 FT.
.TUE NIGHT...N WIND 20 KT. SEAS 6 FT.
.WED...N WIND 20 KT. SEAS 6 FT.
.WED NIGHT...N WIND 15 KT. SEAS 7 FT.
.THU...NE WIND 15 KT. SEAS 7 FT.
.FRI THROUGH SAT...E WIND 20 KT. SEAS 11 FT.

$$

PKZ175-181215-
SEGUAM ISLAND TO ADAK BERING SIDE-
305 PM AKDT MON APR 17 2017

.TONIGHT...SE WIND 20 KT. SEAS 4 FT.
.TUE...E WIND 20 KT. SEAS 4 FT.
.TUE NIGHT...NE WIND 15 KT. SEAS 4 FT.
.WED AND WED NIGHT...N WIND 15 KT. SEAS 4 FT.
.THU...E WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...E WIND 20 KT. SEAS 10 FT.

$$

PKZ176-181215-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
305 PM AKDT MON APR 17 2017

.TONIGHT...SE WIND 20 KT. SEAS 6 FT.
.TUE...E WIND 20 KT. SEAS 6 FT.
.TUE NIGHT...NE WIND 20 KT. SEAS 7 FT.
.WED AND WED NIGHT...N WIND 15 KT. SEAS 8 FT.
.THU...E WIND 20 KT. SEAS 7 FT.
.FRI...E WIND 25 KT. SEAS 13 FT.
.SAT...E WIND 20 KT. SEAS 12 FT.

$$

PKZ177-181215-
ADAK TO KISKA-
305 PM AKDT MON APR 17 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE WIND 30 KT. SEAS 9 FT.
.TUE...E WIND 25 KT. SEAS 9 FT.
.TUE NIGHT...E WIND 20 KT. SEAS 10 FT.
.WED...E WIND 15 KT. SEAS 10 FT.
.WED NIGHT...E WIND 20 KT. SEAS 7 FT.
.THU THROUGH SAT...E WIND 25 KT. SEAS 12 FT.

$$

PKZ178-181215-
KISKA TO ATTU-
305 PM AKDT MON APR 17 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE WIND 30 KT. SEAS 12 FT.
.TUE...SE WIND 25 KT. SEAS 11 FT.
.TUE NIGHT...SE WIND 20 KT. SEAS 11 FT.
.WED...SE WIND 25 KT. SEAS 10 FT.
.WED NIGHT...SE WIND 30 KT. SEAS 11 FT.
.THU...E WIND 35 KT. SEAS 16 FT.
.FRI THROUGH SAT...NE WIND 25 KT. SEAS 15 FT.

$$

PKZ179-181215-
PRIBILOF ISLANDS NEAR SHORE WATERS-
305 PM AKDT MON APR 17 2017

.TONIGHT...NW WIND 10 KT. SEAS 5 FT. PATCHY FOG.
.TUE...N WIND INCREASING TO 20 KT. SEAS 4 FT.
.TUE NIGHT...N WIND 20 KT. SEAS 5 FT.
.WED AND WED NIGHT...N WIND 15 KT. SEAS 5 FT.
.THU THROUGH SAT...NE WIND 15 KT. SEAS 5 FT.

$$

PKZ180-181215-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
305 PM AKDT MON APR 17 2017

.TONIGHT...E WIND 10 KT. SEAS IN ICE FREE WATERS 3 FT.
.TUE...NE WIND 10 KT BECOMING N IN THE AFTERNOON. SEAS IN ICE FREE
WATERS 2 FT.
.TUE NIGHT...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED NIGHT...N WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.THU...E WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.FRI THROUGH SAT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.

$$

PKZ181-181215-
NORTH AND WEST OF NUNIVAK ISLAND-
305 PM AKDT MON APR 17 2017

.TONIGHT...NE WIND 10 KT.
.TUE AND TUE NIGHT...N WIND 15 KT.
.WED AND WED NIGHT...NE WIND 15 KT.
.THU...VARIABLE WIND 10 KT.
.FRI THROUGH SAT...NE WIND 15 KT.

$$

PKZ185-181215-
SAINT MATTHEW ISLAND WATERS-
305 PM AKDT MON APR 17 2017

.TONIGHT...VARIABLE WIND 15 KT. SEAS IN ICE FREE WATERS 5 FT.
.TUE AND TUE NIGHT...N WIND 15 KT. SEAS IN ICE FREE WATERS 5 FT.
.WED AND WED NIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.THU THROUGH FRI...NE WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.SAT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT.

$$

307 
FZAK52 PAFC 181133
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
333 AM AKDT TUE APR 18 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.

PKZ199-190100-
333 AM AKDT TUE APR 18 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
THE EASTERN BERING FRONT RETREATS ACROSS THE ALASKA PENINSULA BY
WED MORNING. A SERIES OF WEAK LOW CENTERS ANCHOR A FRONT OVER THE
WESTERN ALEUTIANS THROUGH THU MORNING. HIGH PRESSURE STRETCHES
ACROSS THE CENTRAL ALEUTIANS THROUGH THU MORNING. A 1013 MB LOW
FORMS OVER ST GEORGE ISLAND THU MORNING.


$$

PKZ150-190100-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
333 AM AKDT TUE APR 18 2017

.TODAY...NW WIND 15 KT. SEAS 6 FT.
.TONIGHT...NW WIND 15 KT. SEAS 6 FT.
.WED...NW WIND 10 KT. SEAS 5 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU...E WIND 25 KT. SEAS 7 FT.
.FRI THROUGH SAT...NE WIND 25 KT. SEAS 14 FT.

$$

PKZ155-190100-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
333 AM AKDT TUE APR 18 2017

.TODAY...VARIABLE WIND 10 KT. SEAS 6 FT.
.TONIGHT...NW WIND 15 KT. SEAS 6 FT.
.WED...NW WIND 10 KT. SEAS 5 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU...NE WIND 20 KT. SEAS 5 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 11 FT.

$$

PKZ160-190100-
BRISTOL BAY-
333 AM AKDT TUE APR 18 2017

.TODAY...N WIND 10 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.TONIGHT...NW WIND 10 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.WED...NE WIND 10 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.WED NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS IN ICE FREE
WATERS 1 FOOT.
.THU THROUGH FRI...NE WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.
.SAT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ165-190100-
PORT HEIDEN TO CAPE SARICHEF-
333 AM AKDT TUE APR 18 2017

.TODAY...NW WIND 15 KT EXCEPT VARIABLE 10 KT FROM PORT MOLLER E.
SEAS 4 FT.
.TONIGHT...NW WIND 15 KT. SEAS 4 FT.
.WED...NW WIND 15 KT. SEAS 4 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU THROUGH FRI...NE WIND 15 KT. SEAS 4 FT.
.SAT...NE WIND 20 KT. SEAS 8 FT.

$$

PKZ170-190100-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
333 AM AKDT TUE APR 18 2017

.TODAY...N WIND 15 KT. SEAS 4 FT.
.TONIGHT...N WIND 20 KT. SEAS 5 FT.
.WED...N WIND 20 KT. SEAS 5 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU...VARIABLE WIND 10 KT. SEAS 3 FT.
.FRI...E WIND 20 KT. SEAS 5 FT.
.SAT...NE WIND 20 KT. SEAS 9 FT.

$$

PKZ171-190100-
UNALASKA BAY-
333 AM AKDT TUE APR 18 2017

.TODAY...N WIND INCREASING TO 15 KT. GUSTS TO 25 KT IN THE AFTERNOON. 
SEAS 3 FT.
.TONIGHT...NW WIND 15 KT. GUSTS TO 25 KT. SEAS 4 FT.
.WED...N WIND 15 KT. SEAS 5 FT.
.WED NIGHT...NW WIND 10 KT. SEAS 3 FT.
.THU THROUGH SAT...NE WIND 10 KT. SEAS 3 FT.

$$

PKZ172-190100-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
333 AM AKDT TUE APR 18 2017

.TODAY...N WIND 15 KT. SEAS 6 FT.
.TONIGHT...N WIND 20 KT. SEAS 6 FT.
.WED...N WIND 15 KT. SEAS 5 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 5 FT.
.THU...VARIABLE WIND 10 KT. SEAS 6 FT.
.FRI...E WIND 20 KT. SEAS 7 FT.
.SAT...NE WIND 20 KT. SEAS 11 FT.

$$

PKZ173-190100-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
333 AM AKDT TUE APR 18 2017

.TODAY...NE WIND 15 KT. SEAS 3 FT.
.TONIGHT...N WIND 15 KT. SEAS 4 FT.
.WED...N WIND 20 KT. SEAS 5 FT.
.WED NIGHT...N WIND 15 KT. SEAS 5 FT.
.THU...E WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...E WIND 25 KT. SEAS 11 FT.

$$

PKZ174-190100-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
333 AM AKDT TUE APR 18 2017

.TODAY...NE WIND 15 KT. SEAS 5 FT.
.TONIGHT...NE WIND 20 KT. SEAS 6 FT.
.WED...N WIND 20 KT. SEAS 6 FT.
.WED NIGHT...N WIND 15 KT. SEAS 8 FT.
.THU...E WIND 20 KT. SEAS 7 FT.
.FRI THROUGH SAT...E WIND 25 KT. SEAS 13 FT.

$$

PKZ175-190100-
SEGUAM ISLAND TO ADAK BERING SIDE-
333 AM AKDT TUE APR 18 2017

.TODAY...E WIND 15 KT. SEAS 4 FT.
.TONIGHT...NE WIND 15 KT. SEAS 3 FT.
.WED...N WIND 15 KT. SEAS 4 FT.
.WED NIGHT...N WIND 15 KT. SEAS 5 FT.
.THU...E WIND 20 KT. SEAS 5 FT.
.FRI THROUGH SAT...E WIND 25 KT. SEAS 12 FT.

$$

PKZ176-190100-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
333 AM AKDT TUE APR 18 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...E WIND 20 KT. SEAS 7 FT.
.TONIGHT...NE WIND 20 KT. SEAS 6 FT.
.WED...N WIND 15 KT. SEAS 8 FT.
.WED NIGHT...N WIND 15 KT. SEAS 8 FT.
.THU...SE WIND 30 KT. SEAS 9 FT.
.FRI...E WIND 30 KT. SEAS 14 FT.
.SAT...E WIND 25 KT. SEAS 13 FT.

$$

PKZ177-190100-
ADAK TO KISKA-
333 AM AKDT TUE APR 18 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E WIND 25 KT. SEAS 9 FT.
.TONIGHT...E WIND 20 KT. SEAS 10 FT.
.WED...E WIND 15 KT. SEAS 10 FT.
.WED NIGHT...E WIND 20 KT. SEAS 7 FT.
.THU THROUGH FRI...E WIND 30 KT. SEAS 14 FT.
.SAT...E WIND 25 KT. SEAS 13 FT.

$$

PKZ178-190100-
KISKA TO ATTU-
333 AM AKDT TUE APR 18 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE WIND 25 KT. SEAS 11 FT.
.TONIGHT...SE WIND 20 KT. SEAS 11 FT.
.WED...SE WIND 25 KT. SEAS 10 FT.
.WED NIGHT...SE WIND 30 KT. SEAS 11 FT.
.THU...E WIND 35 KT. SEAS 18 FT.
.FRI...NE WIND 30 KT. SEAS 18 FT.
.SAT...NE WIND 25 KT. SEAS 12 FT.

$$

PKZ179-190100-
PRIBILOF ISLANDS NEAR SHORE WATERS-
333 AM AKDT TUE APR 18 2017

.TODAY...NW WIND 15 KT. SEAS 4 FT.
.TONIGHT...N WIND 20 KT. SEAS 5 FT. AREAS OF FOG.
.WED...N WIND 20 KT. SEAS 5 FT. FREEZING SPRAY.
.WED NIGHT...N WIND 15 KT. SEAS 4 FT.
.THU THROUGH FRI...E WIND 15 KT. SEAS 5 FT.
.SAT...NE WIND 20 KT. SEAS 7 FT.

$$

PKZ180-190100-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
333 AM AKDT TUE APR 18 2017

.TODAY...NE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.TONIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED NIGHT...N WIND 10 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.THU THROUGH FRI...E WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.SAT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

PKZ181-190100-
NORTH AND WEST OF NUNIVAK ISLAND-
333 AM AKDT TUE APR 18 2017

.TODAY...N WIND 15 KT.
.TONIGHT...N WIND 20 KT.
.WED...N WIND 15 KT.
.WED NIGHT...NE WIND 15 KT.
.THU THROUGH FRI...NE WIND 15 KT.
.SAT...NE WIND 20 KT.

$$

PKZ185-190100-
SAINT MATTHEW ISLAND WATERS-
333 AM AKDT TUE APR 18 2017

.TODAY...N WIND 15 KT. SEAS IN ICE FREE WATERS 5 FT.
.TONIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.WED...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.WED NIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.THU...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.FRI THROUGH SAT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.

$$

274 
FZAK52 PAFC 182157
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
ISSUED BY NATIONAL WEATHER SERVICE FAIRBANKS AK
157 PM AKDT TUE APR 18 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.

PKZ199-191100-
157 PM AKDT TUE APR 18 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A WEATHER FRONT OVER BRISTOL BAY WILL MOVE WEST TONIGHT AND WILL SIT
OVER THE EASTERN ALEUTIANS THROUGH THU. HIGH PRESSURE WILL SIT OVER THE
CENTRAL ALEUTIANS THROUGH THU MORNING. 

$$

PKZ150-191100-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
157 PM AKDT TUE APR 18 2017

.TONIGHT...NW WIND 15 KT. SEAS 6 FT.
.WED...VARIABLE WIND 10 KT. SEAS 4 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU...E WIND 15 KT. SEAS 3 FT.
.THU NIGHT...NE WIND 20 KT. SEAS 6 FT.
.FRI THROUGH SAT...NE WIND 25 KT. SEAS 14 FT.
.SUN...NE WIND 15 KT. SEAS 9 FT.

$$

PKZ155-191100-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
157 PM AKDT TUE APR 18 2017

.TONIGHT...NW WIND 15 KT. SEAS 6 FT.
.WED...VARIABLE WIND 10 KT. SEAS 5 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU...NE WIND 15 KT. SEAS 4 FT.
.THU NIGHT...E WIND 20 KT. SEAS 4 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 11 FT.
.SUN...NE WIND 15 KT. SEAS 9 FT.

$$

PKZ160-191100-
BRISTOL BAY-
157 PM AKDT TUE APR 18 2017

.TONIGHT...NW WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.WED...NE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.WED NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS IN ICE FREE
WATERS
2 FT.
.THU...E WIND 10 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.THU NIGHT...E WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.
.FRI...NE WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT.
.SAT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.SUN...NE WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.

$$

PKZ165-191100-
PORT HEIDEN TO CAPE SARICHEF-
157 PM AKDT TUE APR 18 2017

.TONIGHT...NW WIND 15 KT. SEAS 4 FT. PATCHY FOG.
.WED...NW WIND 15 KT. SEAS 3 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT. PATCHY FOG.
.THU...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU NIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI...NE WIND 15 KT. SEAS 4 FT.
.SAT...NE WIND 20 KT. SEAS 8 FT.
.SUN...NE WIND 15 KT. SEAS 7 FT.

$$

PKZ170-191100-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
157 PM AKDT TUE APR 18 2017

.TONIGHT...N WIND 15 KT. SEAS 5 FT.
.WED...N WIND 15 KT. SEAS 4 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT. PATCHY FOG.
.THU...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.FRI...E WIND 20 KT. SEAS 5 FT.
.SAT THROUGH SUN...NE WIND 20 KT. SEAS 9 FT.

$$

PKZ171-191100-
UNALASKA BAY-
157 PM AKDT TUE APR 18 2017

.TONIGHT...NW WIND 15 KT. SEAS 4 FT.
.WED...N WIND 15 KT. SEAS 3 FT.
.WED NIGHT...NW WIND 10 KT IN THE EVENING BECOMING VARIABLE LESS
THAN 10 KT. SEAS 3 FT.
.THU...VARIABLE WIND LESS THAN 10 KT. SEAS 3 FT.
.THU NIGHT...E WIND 10 KT. SEAS 2 FT.
.FRI THROUGH SUN...N WIND 10 KT. SEAS 3 FT.

$$

PKZ172-191100-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
157 PM AKDT TUE APR 18 2017

.TONIGHT...N WIND 15 KT. SEAS 6 FT.
.WED...N WIND 15 KT. SEAS 6 FT.
.WED NIGHT...VARIABLE WIND 10 KT. SEAS 5 FT.
.THU...VARIABLE WIND 10 KT. SEAS 5 FT.
.THU NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.FRI...E WIND 20 KT. SEAS 7 FT.
.SAT...NE WIND 20 KT. SEAS 11 FT.
.SUN...N WIND 15 KT. SEAS 11 FT.

$$

PKZ173-191100-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
157 PM AKDT TUE APR 18 2017

.TONIGHT...N WIND 15 KT. SEAS 4 FT.
.WED...N WIND 15 KT. SEAS 4 FT.
.WED NIGHT...N WIND 15 KT. SEAS 4 FT.
.THU...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU NIGHT...SE WIND 20 KT. SEAS 3 FT.
.FRI THROUGH SAT...E WIND 25 KT. SEAS 11 FT.
.SUN...NE WIND 15 KT. SEAS 9 FT.

$$

PKZ174-191100-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
157 PM AKDT TUE APR 18 2017

.TONIGHT...NE WIND 15 KT. SEAS 6 FT.
.WED...N WIND 20 KT. SEAS 6 FT.
.WED NIGHT...N WIND 15 KT. SEAS 7 FT.
.THU...VARIABLE WIND 10 KT. SEAS 6 FT.
.THU NIGHT...SE WIND 25 KT. SEAS 5 FT.
.FRI...E WIND 30 KT. SEAS 13 FT.
.SAT...E WIND 25 KT. SEAS 13 FT.
.SUN...NE WIND 15 KT. SEAS 12 FT.

$$

PKZ175-191100-
SEGUAM ISLAND TO ADAK BERING SIDE-
157 PM AKDT TUE APR 18 2017

.TONIGHT...NE WIND 15 KT. SEAS 3 FT.
.WED...N WIND 15 KT. SEAS 4 FT.
.WED NIGHT...N WIND 15 KT. SEAS 4 FT.
.THU...NE WIND 15 KT. SEAS 3 FT.
.THU NIGHT...E WIND 25 KT. SEAS 5 FT.
.FRI...E WIND 30 KT. SEAS 12 FT.
.SAT...E WIND 25 KT. SEAS 12 FT.
.SUN...NE WIND 20 KT. SEAS 9 FT.

$$

PKZ176-191100-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
157 PM AKDT TUE APR 18 2017

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

.TONIGHT...NE WIND 20 KT. SEAS 6 FT.
.WED...N WIND 15 KT. SEAS 8 FT.
.WED NIGHT...N WIND 15 KT. SEAS 8 FT.
.THU...E WIND 20 KT. SEAS 6 FT.
.THU NIGHT...SE WIND 30 KT. SEAS 10 FT.
.FRI...E WIND 30 KT. SEAS 14 FT.
.SAT...E WIND 25 KT. SEAS 13 FT.
.SUN...E WIND 20 KT. SEAS 11 FT.

$$

PKZ177-191100-
ADAK TO KISKA-
157 PM AKDT TUE APR 18 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...E WIND 20 KT. SEAS 9 FT.
.WED...E WIND 15 KT. SEAS 9 FT.
.WED NIGHT...E WIND 20 KT. SEAS 7 FT.
.THU...E WIND 30 KT. SEAS 8 FT.
.THU NIGHT...E WIND 35 KT. SEAS 15 FT.
.FRI...E WIND 30 KT. SEAS 14 FT.
.SAT...E WIND 25 KT. SEAS 13 FT.
.SUN...E WIND 25 KT. SEAS 9 FT.

$$

PKZ178-191100-
KISKA TO ATTU-
157 PM AKDT TUE APR 18 2017

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

.TONIGHT...SE WIND 20 KT. SEAS 11 FT.
.WED...SE WIND 25 KT. SEAS 10 FT.
.WED NIGHT...SE WIND 30 KT. SEAS 11 FT.
.THU...E WIND 35 KT. SEAS 15 FT.
.THU NIGHT...E WIND 40 KT. SEAS 19 FT.
.FRI...NE WIND 35 KT. SEAS 18 FT.
.SAT THROUGH SUN...NE WIND 25 KT. SEAS 12 FT.

$$

PKZ179-191100-
PRIBILOF ISLANDS NEAR SHORE WATERS-
157 PM AKDT TUE APR 18 2017

.TONIGHT...N WIND 20 KT. SEAS 5 FT. AREAS OF FOG.
.WED...N WIND 20 KT. SEAS 5 FT.
.WED NIGHT...N WIND 15 KT. SEAS 4 FT. AREAS OF FREEZING FOG.
.THU...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU NIGHT...SE WIND 15 KT. SEAS 3 FT.
.FRI...E WIND 15 KT. SEAS 4 FT.
.SAT THROUGH SUN...NE WIND 20 KT. SEAS 7 FT.

$$

PKZ180-191100-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
157 PM AKDT TUE APR 18 2017

.TONIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED NIGHT...N WIND 10 KT BECOMING SE AFTER MIDNIGHT. SEAS IN ICE
FREE WATERS 2 FT.
.THU...E WIND 10 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.THU NIGHT...E WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.FRI...E WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.SAT THROUGH SUN...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

PKZ181-191100-
NORTH AND WEST OF NUNIVAK ISLAND-
157 PM AKDT TUE APR 18 2017

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

$$

PKZ185-191100-
SAINT MATTHEW ISLAND WATERS-
157 PM AKDT TUE APR 18 2017

.TONIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.WED...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.WED NIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.THU AND THU NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.FRI THROUGH SUN...NE WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
432 PM AKDT Sun Apr 16 2017

.ANALYSIS AND UPPER LEVELS...

The generally benign stretch of weather for much of Southern
Alaska continues this afternoon. This is largely due to a lack of
strong upper level features anywhere near southern Alaska. A weak
front is stalled north of the Alaska Range, but ample dry air is
precluding precipitation development. The upper level ridge over
Southcentral is breaking down and becoming rather diffuse. A weak
vertically stacked low south of the eastern Aleutians continues
to funnel moisture northward into Southwest Alaska and the eastern
Bering.

For Southcentral, high pressure has been strengthening over the
western Gulf today. As a result, winds have been up-Inlet through
much of the morning. Accompanying those southerly winds is more
low-level moisture and a capping inversion above it which
developed in just 12 hours between yesterday afternoon's sounding
and this morning's. The extra moisture and capping inversion have
led to the development of stratus clouds across all of the western
Kenai, Anchorage Bowl, and the eastern Susitna Valley. A bit more
instability has flushed out those clouds in the Matanuska Valley,
implying the inversion there is not as strong. Widespread stratus
is also over nearly all of the Gulf today as well, though there
are a few breaks south of the Kenai Peninsula and lower Cook
Inlet. A neat looking swirl in the stratus is present south of
Cordova, but it's unlikely it's producing much change to the
sensible weather at the surface. The stratus has kept temperatures
significantly cooler today than yesterday, with Kenai having the
most profound effect thus far. As of 1pm, Kenai is 12 degrees
cooler than that same time yesterday!

For Southwest Alaska, broad southerly flow is bringing moisture
and extensive cloud cover to much of the area, with a thickening
cumulus field over the Lower Kuskokwim Valley. A few showers are
on radar near Dillingham and Bethel but they appear to be very
light.

The western edge of the cloud cover over southwest Alaska and the
eastern Bering is right along the Pribilofs. West of the
Pribilofs, partly cloudy skies with some scattered cumulus are
evident making for a pretty nice day across the central Aleutians.
For the western Aleutians, clouds are slowly building ahead of
the next storm system.

&&

.MODEL DISCUSSION...

Models continue to remain in excellent agreement over the next few
days with only weak systems affecting the area. The higher
resolution NAM continues to be the model of choice with forecast
confidence remaining high. The forecast challenge continues to
be forecasting how the stratus near Cook Inlet behaves. While
precipitation out of it seems unlikely anywhere in Southcentral,
the presence of stratus has a profound impact on temperatures over
the area, as detailed in the Analysis section. With high pressure
over the Gulf expected to diminish tonight, a return of northerly
winds will begin scouring out the stratus across the area, but
determining how quickly that happens will be the challenge.

&&

.AVIATION...
PANC...The stratus will dissipate this evening then reform again
tonight resulting in the airport flirting with MVFR conditions
again overnight tonight. Winds will follow diurnal trends.

&&
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...

High pressure in the Gulf with a decaying trough of low pressure
along the Alaska Range will keep southerly flow from Kodiak Island
and the western Kenai to the Susitna Valley. This will keep low
clouds over this area tonight. The rest of the region will have
dry northerly flow, although some clouds will form along the weak
trough near the Alaska Range. On Mon, after persistent morning
clouds and patchy fog near Cook Inlet, the upper trough will
dissipate and dry high pressure will begin to spread across the
forecast area. This will continue through Wed, although clouds and
a few showers over the Wrangell Mountains and Alaska Range will
be associated with a weak backdoor front from Canada.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
Rather benign weather conditions ensue through the beginning of
the week as a weak trough remains across the eastern Bering and
high pressure builds to the east. Isolated to scattered showers
will develop periodically along upper level short waves
propagating in from the Bering.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...

Low pressure just south of the eastern Aleutians weakens as it
shifts north into the Bering tonight. Light rain and snow is
expected to continue along the surface trough as a deformation
zone aloft stretches along the eastern waters. New energy diving
in from Kamchatka helps revive low pressure over the eastern
Bering with a new upper low center developing mid week. Much of
the central and western waters will be under the influence of a
ridge building in from the north keeping winds relatively light
with partly cloudy skies. The highest impacts will be along the
Aleutians as a North Pacific front moves into the Chain early
Monday bringing rain and low end gale winds through Monday night.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The models remain in good agreement through next weekend. An
upper level closed high pressure is still positioned over the
North Slope. This synoptic feature extends southward into central
interior, and gradually moves westward through Wednesday. Look
for a northerly fetch accompanied by slightly cooler temperatures
through the aforementioned region. While the Southwest Alaska
region has an upper level closed low, and a weak trough positioned
near Galena extending eastward through Fairbanks area by Thursday.
This feature gets kicked out into the eastern Bering near Nunivak
Island by Friday. This should bring a showery regime to the
Southwest Alaska region before an amplified upper level ridge
builds into the Southcentral region, and builds westward heading
into next weekend. Meanwhile, upstream from this amplified ridge
the lower Gulf will have troughing, which brings a rainy pattern
to the aforementioned region extending northward into the northern
Gulf coastal communities by next weekend.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...GALES 178.

&&

SYNOPSIS AND MODEL DISCUSSION...SA
SOUTHCENTRAL ALASKA...DS
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KH
LONG TERM...PD