Small Craft Advisory 241, NWS Anchorage, AK

494 
FZAK52 PAFC 221149
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
349 AM AKDT WED MAR 22 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.

PKZ199-230100-
349 AM AKDT WED MAR 22 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

BOGOSLOF VOLCANO 53 NM WEST OF DUTCH HARBOR REMAINS ACTIVE. A 
1001 MB LOW 290 NM WEST OF SHEMYA WILL MOVE TO 340 NM NORTHWEST 
OF SHEMYA AT 1005 MB TONIGHT THEN DISSIPATE. A PACIFIC LOW WILL 
MOVE TO 475 NM SOUTHWEST OF ADAK AT 966 MB THU NIGHT.

$$

PKZ150-230100-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
349 AM AKDT WED MAR 22 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...NW WIND INCREASING TO 25 KT. SEAS 5 FT. FREEZING SPRAY.
.TONIGHT...NW WIND 25 KT. GUSTS TO 35 KT OUT OF BAYS AND PASSES. 
SEAS 6 FT. FREEZING SPRAY.
.THU...NW WIND 30 KT. GUSTS TO 40 KT OUT OF BAYS AND PASSES. SEAS 6 
FT. FREEZING SPRAY.
.THU NIGHT...NW WIND 25 KT. SEAS 6 FT.
.FRI...N WIND 20 KT. SEAS 5 FT.
.SAT...NE WIND 15 KT. SEAS 11 FT.
.SUN...NE WIND 20 KT. SEAS 13 FT.

$$

PKZ155-230100-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
349 AM AKDT WED MAR 22 2017

.TODAY...N WIND 15 KT. SEAS 5 FT. FREEZING SPRAY NEAR THE COAST.
.TONIGHT...N WIND 15 KT. SEAS 4 FT. FREEZING SPRAY NEAR THE COAST.
.THU...N WIND 15 KT. SEAS 5 FT. FREEZING SPRAY NEAR THE COAST.
.THU NIGHT...N WIND 15 KT. SEAS 5 FT.
.FRI...E WIND 25 KT. SEAS 7 FT.
.SAT THROUGH SUN...NE WIND 25 KT. SEAS 16 FT.

$$

PKZ160-230100-
BRISTOL BAY-
349 AM AKDT WED MAR 22 2017

.TODAY...N WIND 20 KT.
.TONIGHT...N WIND 15 KT.
.THU...N WIND 10 KT.
.THU NIGHT...NE WIND 15 KT.
.FRI THROUGH SUN...NE WIND 20 KT.

$$

PKZ165-230100-
PORT HEIDEN TO CAPE SARICHEF-
349 AM AKDT WED MAR 22 2017

.TODAY...NE WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT. FREEZING
SPRAY.
.TONIGHT AND THU...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT. 
FREEZING SPRAY.
.THU NIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.FRI THROUGH SUN...NE WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.

$$

PKZ170-230100-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
349 AM AKDT WED MAR 22 2017

.TODAY...NE WIND 20 KT. SEAS 5 FT.
.TONIGHT...NE WIND 15 KT. SEAS 4 FT.
.THU...NE WIND 15 KT. SEAS 3 FT.
.THU NIGHT...E WIND 25 KT. SEAS 5 FT.
.FRI THROUGH SUN...E WIND 30 KT. SEAS 9 FT.

$$

PKZ171-230100-
UNALASKA BAY-
349 AM AKDT WED MAR 22 2017

.TODAY...NE WIND 10 KT. SEAS 3 FT.
.TONIGHT...NE WIND 10 KT. SEAS 3 FT.
.THU...NE WIND 10 KT. SEAS 2 FT.
.THU NIGHT...E WIND 10 KT. SEAS 2 FT.
.FRI...E WIND 25 KT. SEAS 3 FT.
.SAT...E WIND 20 KT. SEAS 3 FT.
.SUN...E WIND 15 KT. SEAS 4 FT.

$$

PKZ172-230100-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
349 AM AKDT WED MAR 22 2017

.TODAY...NE WIND 15 KT. SEAS 6 FT.
.TONIGHT...N WIND 10 KT. SEAS 5 FT.
.THU...VARIABLE WIND 10 KT. SEAS 5 FT.
.THU NIGHT...E WIND 25 KT. SEAS 6 FT.
.FRI...E WIND 35 KT. SEAS 15 FT.
.SAT THROUGH SUN...E WIND 30 KT. SEAS 19 FT.

$$

PKZ173-230100-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
349 AM AKDT WED MAR 22 2017

.TODAY...E WIND 15 KT. SEAS 5 FT.
.TONIGHT...SE WIND 10 KT. SEAS 5 FT.
.THU...E WIND 20 KT. SEAS 4 FT.
.THU NIGHT...E WIND 30 KT. SEAS 9 FT.
.FRI...E WIND 35 KT. SEAS 15 FT.
.SAT THROUGH SUN...E WIND 30 KT. SEAS 14 FT.

$$

PKZ174-230100-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
349 AM AKDT WED MAR 22 2017

.TODAY...E WIND 15 KT. SEAS 7 FT.
.TONIGHT...SE WIND 10 KT. SEAS 7 FT.
.THU...SE WIND 10 KT INCREASING TO 20 KT IN THE AFTERNOON. SEAS 6 
FT.
.THU NIGHT...E WIND 35 KT. SEAS 11 FT.
.FRI...E WIND 40 KT. SEAS 20 FT.
.SAT...E WIND 30 KT. SEAS 22 FT.
.SUN...E WIND 25 KT. SEAS 18 FT.

$$

PKZ175-230100-
SEGUAM ISLAND TO ADAK BERING SIDE-
349 AM AKDT WED MAR 22 2017

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...E WIND 20 KT. SEAS 6 FT.
.TONIGHT...SE WIND 15 KT. SEAS 5 FT.
.THU...SE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS
5 FT.
.THU NIGHT...E WIND 35 KT. SEAS 11 FT.
.FRI...E WIND 40 KT. SEAS 16 FT.
.SAT THROUGH SUN...E WIND 30 KT. SEAS 14 FT.

$$

PKZ176-230100-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
349 AM AKDT WED MAR 22 2017

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

.TODAY...E WIND 15 KT. SEAS 8 FT.
.TONIGHT...SE WIND 10 KT. SEAS 6 FT.
.THU...SE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS
9 FT.
.THU NIGHT...E WIND 40 KT. SEAS 17 FT.
.FRI...E WIND 40 KT. SEAS 22 FT.
.SAT...SE WIND 25 KT. SEAS 22 FT.
.SUN...E WIND 25 KT. SEAS 15 FT.

$$

PKZ177-230100-
ADAK TO KISKA-
349 AM AKDT WED MAR 22 2017

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...E WIND 15 KT IN THE MORNING BECOMING VARIABLE 10 KT. SEAS
6 FT.
.TONIGHT...VARIABLE WIND 10 KT. SEAS 6 FT.
.THU...E WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS 6
FT BUILDING TO 10 FT.
.THU NIGHT...E WIND 40 KT. SEAS 19 FT.
.FRI...E WIND 40 KT. SEAS 22 FT.
.SAT...E WIND 30 KT. SEAS 20 FT.
.SUN...E WIND 30 KT. SEAS 15 FT.

$$

PKZ178-230100-
KISKA TO ATTU-
349 AM AKDT WED MAR 22 2017

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...S WIND 15 KT. SEAS 7 FT.
.TONIGHT...S WIND 15 KT. SEAS 5 FT.
.THU...E WIND 30 KT. SEAS 8 FT.
.THU NIGHT...E WIND 40 KT. SEAS 18 FT.
.FRI...E WIND 40 KT. SEAS 22 FT.
.SAT...E WIND 35 KT. SEAS 20 FT.
.SUN...NE WIND 30 KT. SEAS 16 FT.

$$

PKZ179-230100-
PRIBILOF ISLANDS NEAR SHORE WATERS-
349 AM AKDT WED MAR 22 2017

.TODAY...E WIND 15 KT. SEAS 4 FT. FREEZING SPRAY.
.TONIGHT...E WIND 10 KT. SEAS 3 FT.
.THU...E WIND 10 KT. SEAS 2 FT.
.THU NIGHT...E WIND 20 KT. SEAS 4 FT.
.FRI THROUGH SAT...E WIND 30 KT. SEAS 9 FT.
.SUN...NE WIND 25 KT. SEAS 8 FT.

$$

PKZ180-230100-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
349 AM AKDT WED MAR 22 2017

.TODAY...N WIND 20 KT.
.TONIGHT THROUGH THU NIGHT...N WIND 20 KT.
.FRI THROUGH SUN...NE WIND 20 KT.

$$

PKZ181-230100-
NORTH AND WEST OF NUNIVAK ISLAND-
349 AM AKDT WED MAR 22 2017

.TODAY...NE WIND 10 KT.
.TONIGHT THROUGH THU NIGHT...N WIND 10 KT.
.FRI THROUGH SUN...NE WIND 20 KT.

$$

PKZ185-230100-
SAINT MATTHEW ISLAND WATERS-
349 AM AKDT WED MAR 22 2017

.TODAY...E WIND 10 KT. SEAS IN ICE FREE WATERS 4 FT.
.TONIGHT...E WIND 10 KT. SEAS IN ICE FREE WATERS 4 FT.
.THU...VARIABLE WIND 10 KT E OF SAINT MATTHEW ISLAND...SE 15 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 3 FT.
.THU NIGHT...E WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.FRI THROUGH SAT...E WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.SUN...E WIND 25 KT. SEAS IN ICE FREE WATERS 9 FT.

$$

800 
FZAK52 PAFC 222353
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
353 PM AKDT WED MAR 22 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.

PKZ199-231330-
353 PM AKDT WED MAR 22 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
BOGOSLOF VOLCANO 53 NM WEST OF DUTCH HARBOR REMAINS ACTIVE. A 
1001 MB LOW 350 NM WEST OF SHEMYA MOVES WEST BEFORE DISSIPATING 
BY THU AFTERNOON. A 966 MB LOW MOVES 680 NM SOUTHWEST OF SHEMYA 
THU AFTERNOON BEFORE MOVING 380 NM SOUTHWEST OF ADAK AT 968 MB FRI
AFTERNOON. AN ASSOCIATED FRONT APPROACHES THE WESTERN ALEUTIANS 
THU AFTERNOON MOVES INTO THE WESTERN/CENTRAL BERING FRI AFTERNOON.

$$

PKZ150-231330-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
353 PM AKDT WED MAR 22 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...NW WIND 30 KT. GUSTS TO 40 KT OUT OF BAYS AND PASSES. SEAS
6 FT. FREEZING SPRAY.
.THU...NW WIND 30 KT. GUSTS TO 40 KT OUT OF BAYS AND PASSES. SEAS 6 
FT. FREEZING SPRAY.
.THU NIGHT...NW WIND 30 KT. SEAS 6 FT. FREEZING SPRAY.
.FRI...N WIND 20 KT. SEAS 5 FT.
.FRI NIGHT...N WIND 15 KT. SEAS 4 FT.
.SAT...NE WIND 15 KT. SEAS 11 FT.
.SUN THROUGH MON...N WIND 20 KT. SEAS 12 FT.

$$

PKZ155-231330-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
353 PM AKDT WED MAR 22 2017

.TONIGHT...N WIND 20 KT. GUSTS TO 30 KT OUT OF BAYS AND PASSES E OF
THE SHUMAGIN ISLANDS. SEAS 5 FT. FREEZING SPRAY.
.THU...N WIND 20 KT. GUSTS TO 30 KT OUT OF BAYS AND PASSES E OF THE 
SHUMAGIN ISLANDS IN THE MORNING. SEAS 5 FT.
.THU NIGHT...N WIND 15 KT. SEAS 5 FT.
.FRI...E WIND 20 KT. SEAS 4 FT.
.FRI NIGHT...E WIND 25 KT. SEAS 8 FT.
.SAT THROUGH SUN...NE WIND 25 KT. SEAS 16 FT.
.MON...N WIND 20 KT. SEAS 12 FT.

$$

PKZ160-231330-
BRISTOL BAY-
353 PM AKDT WED MAR 22 2017

.TONIGHT...N WIND 15 KT.
.THU...N WIND 10 KT.
.THU NIGHT...N WIND 10 KT.
.FRI...NE WIND 15 KT.
.FRI NIGHT...NE WIND 25 KT.
.SAT...NE WIND 25 KT.
.SUN...NE WIND 20 KT.
.MON...N WIND 15 KT.

$$

PKZ165-231330-
PORT HEIDEN TO CAPE SARICHEF-
353 PM AKDT WED MAR 22 2017

.TONIGHT...N WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT. PATCHY
FREEZING FOG.
.THU...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT. FREEZING SPRAY
AND PATCHY FREEZING FOG.
.THU NIGHT...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT. FREEZING
SPRAY AND PATCHY FREEZING FOG.
.FRI...E WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT.
.FRI NIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SAT THROUGH SUN...NE WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.MON...NE WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.

$$

PKZ170-231330-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
353 PM AKDT WED MAR 22 2017

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...NE WIND 15 KT. SEAS 3 FT.
.THU...NE WIND 15 KT. SEAS 3 FT.
.THU NIGHT...E WIND 25 KT. SEAS 5 FT.
.FRI AND FRI NIGHT...E WIND 30 KT. SEAS 8 FT.
.SAT THROUGH SUN...E WIND 30 KT. SEAS 10 FT.
.MON...NE WIND 25 KT. SEAS 8 FT.

$$

PKZ171-231330-
UNALASKA BAY-
353 PM AKDT WED MAR 22 2017

.TONIGHT...NE WIND 10 KT. SEAS 2 FT.
.THU...N WIND 10 KT. SEAS 2 FT.
.THU NIGHT...E WIND 10 KT. SEAS 2 FT.
.FRI...E WIND 20 KT. SEAS 3 FT.
.FRI NIGHT...E WIND 25 KT. SEAS 4 FT.
.SAT...E WIND 25 KT. SEAS 4 FT.
.SUN THROUGH MON...NE WIND 15 KT. SEAS 4 FT.

$$

PKZ172-231330-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
353 PM AKDT WED MAR 22 2017

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 5 FT.
.THU...VARIABLE WIND 10 KT. SEAS 5 FT.
.THU NIGHT...E WIND 15 KT INCREASING TO 25 KT AFTER MIDNIGHT. SEAS
6 FT.
.FRI...E WIND 35 KT. SEAS 12 FT.
.FRI NIGHT...E WIND 35 KT. SEAS 18 FT.
.SAT...E WIND 35 KT. SEAS 20 FT.
.SUN...E WIND 30 KT. SEAS 18 FT.
.MON...NE WIND 20 KT. SEAS 14 FT.

$$

PKZ173-231330-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
353 PM AKDT WED MAR 22 2017

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 5 FT.
.THU...VARIABLE WIND 10 KT BECOMING SE 20 KT IN THE AFTERNOON.
SEAS 4 FT.
.THU NIGHT...E WIND 30 KT. SEAS 9 FT.
.FRI AND FRI NIGHT...E WIND 40 KT. SEAS 17 FT.
.SAT...E WIND 35 KT. SEAS 16 FT.
.SUN...E WIND 30 KT. SEAS 13 FT.
.MON...E WIND 25 KT. SEAS 10 FT.

$$

PKZ174-231330-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
353 PM AKDT WED MAR 22 2017

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 7 FT.
.THU...VARIABLE WIND 10 KT BECOMING SE 20 KT IN THE AFTERNOON.
SEAS 6 FT.
.THU NIGHT...E WIND 35 KT. SEAS 12 FT.
.FRI AND FRI NIGHT...E WIND 40 KT. SEAS 21 FT.
.SAT...E WIND 35 KT. SEAS 22 FT.
.SUN THROUGH MON...E WIND 25 KT. SEAS 17 FT.

$$

PKZ175-231330-
SEGUAM ISLAND TO ADAK BERING SIDE-
353 PM AKDT WED MAR 22 2017

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SE WIND 15 KT. SEAS 5 FT.
.THU...SE WIND 25 KT. SEAS 5 FT.
.THU NIGHT...E WIND 35 KT. SEAS 11 FT.
.FRI AND FRI NIGHT...E WIND 40 KT. SEAS 18 FT.
.SAT...E WIND 35 KT. SEAS 16 FT.
.SUN THROUGH MON...E WIND 30 KT. SEAS 13 FT.

$$

PKZ176-231330-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
353 PM AKDT WED MAR 22 2017

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SE WIND 15 KT. SEAS 6 FT.
.THU...SE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS
9 FT.
.THU NIGHT...E WIND 35 KT INCREASING TO 45 KT AFTER MIDNIGHT. SEAS
13 FT BUILDING TO 18 FT AFTER MIDNIGHT.
.FRI...E WIND 45 KT. SEAS 24 FT.
.FRI NIGHT...E WIND 40 KT. SEAS 23 FT.
.SAT...E WIND 30 KT. SEAS 22 FT.
.SUN THROUGH MON...E WIND 25 KT. SEAS 15 FT.

$$

PKZ177-231330-
ADAK TO KISKA-
353 PM AKDT WED MAR 22 2017

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 6 FT.
.THU...E WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS 6
FT BUILDING TO 10 FT IN THE AFTERNOON.
.THU NIGHT...E WIND 45 KT. SEAS 15 FT BUILDING TO 20 FT AFTER
MIDNIGHT.
.FRI AND FRI NIGHT...E WIND 40 KT. SEAS 23 FT.
.SAT...E WIND 35 KT. SEAS 19 FT.
.SUN THROUGH MON...E WIND 30 KT. SEAS 15 FT.

$$

PKZ178-231330-
KISKA TO ATTU-
353 PM AKDT WED MAR 22 2017

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...S WIND 15 KT. SEAS 5 FT.
.THU...E WIND 30 KT. SEAS 8 FT.
.THU NIGHT...E WIND 40 KT. BERING SIDE, SEAS 9 FT BUILDING TO 14
FT AFTER MIDNIGHT. PAC SIDE, SEAS 14 FT BUILDING TO 21 FT AFTER 
MIDNIGHT.
.FRI AND FRI NIGHT...E WIND 40 KT. SEAS 23 FT.
.SAT...E WIND 35 KT. SEAS 19 FT.
.SUN THROUGH MON...NE WIND 30 KT. SEAS 16 FT.

$$

PKZ179-231330-
PRIBILOF ISLANDS NEAR SHORE WATERS-
353 PM AKDT WED MAR 22 2017

.TONIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU...VARIABLE WIND 10 KT. SEAS 2 FT.
.THU NIGHT...E WIND 20 KT. SEAS 4 FT. FREEZING SPRAY.
.FRI AND FRI NIGHT...E WIND 30 KT. SEAS 9 FT.
.SAT...E WIND 30 KT. SEAS 10 FT.
.SUN THROUGH MON...NE WIND 25 KT. SEAS 8 FT.

$$

PKZ180-231330-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
353 PM AKDT WED MAR 22 2017

.TONIGHT...N WIND 20 KT.
.THU...N WIND 20 KT.
.THU NIGHT...NE WIND 20 KT.
.FRI AND FRI NIGHT...NE WIND 20 KT.
.SAT THROUGH MON...N WIND 20 KT.

$$

PKZ181-231330-
NORTH AND WEST OF NUNIVAK ISLAND-
353 PM AKDT WED MAR 22 2017

.TONIGHT...VARIABLE WIND 10 KT.
.THU...VARIABLE WIND 10 KT.
.THU NIGHT...VARIABLE WIND 10 KT.
.FRI AND FRI NIGHT...NE WIND 15 KT.
.SAT THROUGH MON...N WIND 20 KT.

$$

PKZ185-231330-
SAINT MATTHEW ISLAND WATERS-
353 PM AKDT WED MAR 22 2017

.TONIGHT...VARIABLE WIND 10 KT. SEAS IN ICE FREE WATERS 4 FT.
.THU...VARIABLE WIND 10 KT E OF SAINT MATTHEW ISLAND...SE 15 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 3 FT.
.THU NIGHT...VARIABLE WIND 10 KT E OF SAINT MATTHEW ISLAND...E 20 KT
W OF SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 4 FT. FREEZING 
SPRAY.
.FRI AND FRI NIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.SAT THROUGH MON...NE WIND 25 KT. SEAS IN ICE FREE WATERS 10 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
420 AM AKDT Tue Mar 21 2017

.ANALYSIS AND UPPER LEVELS...
The blocking ridge remains over the eastern Bering with a trough
to its east stretching north and south through Southcentral
Alaska. The trough is bringing snow to areas around the north
Gulf coast, but the ridging has kept it away from the Cook Inlet
area. To the west of the ridge a low is tracking north to the west
of the Western Aleutians bringing rain and snow to the area.

&&

.MODEL DISCUSSION...
The models are in good agreement through the mid term with only
minor variations with low placement moving into the mid term.

&&

.AVIATION...
PANC...VFR conditions and light winds will persist.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The upper level trough is holding firm over Southcentral Alaska
along a north-south line from near Cantwell to Seward and then
into the western Gulf of Alaska. This will keep precipitation
east of the trough and confined to the north Gulf coast today with
everything shifting slowly eastward the next few days.

A weak surface low in the Gulf is increasing the gradient over
Prince William Sound with the strongest winds expected in the
Thompson Pass area today. There will be some gusty winds through
channeled terrain in the Alaska Range but not as strong as the
Prince William Sound area.

This also means that Anchorage and other areas west of the Kenai,
Chugach and Talkeetna mountains will remain mostly sunny during
the days and clear at night. In summary: Not much change in the
weather over the next few days.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
The Bering Sea ridge will continue to support dry northerly flow
over the southwest mainland through the middle of the week. This
means more of the same across the area, with sunny skies and
diurnally driven gusty winds during the afternoon. Temperatures
will remain below seasonal norms, with overnight lows continuing
to dip near zero as a result of more optimal radiative cooling
processes owing to clear skies and subsiding winds.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The strong blocking ridge over the eastern Bering will continue
to dominate the pattern through the next few days. This will
bring more sunshine to the Pribilofs, Eastern Aleutians, and
Akpen, though some marine stratus may still sneak in at times. A
weak front extending from a low near the Kamchatka Peninsula will
continue to bring rain and Small Craft Advisory conditions to the
Western Aleutians through Wednesday before lifting north of the
area. A weak wave south of Adak will also bring light rain to the
central part of the chain through Wednesday night.

&&

.LONG TERM FORECAST (Days 3 through 7/Wednesday night through Monday)...
The blocking ridge will remain firmly entrenched over the Bering
Sea until next weekend when it appears this long pattern (which
has been in place for all of March) will finally break down. Until
then, expect continued mostly dry and cool conditions over the
southern mainland. A series of short-wave troughs dropping down
from the Arctic will re-supply cold air and lead to occasional
increases in winds later this week, especially along the Gulf
coast and Alaska Peninsula. A semi-permanent surface low will set
up over the east or northeast Gulf. As short-waves dive into
Southcentral they may tap into some of this moisture and spread
some light snow northward to portions of the Copper River Basin
and eastern Prince William Sound.

Meanwhile, a strengthening subtropical jet will undercut the
upper ridge, driving eastward across the north Pacific Friday
through Saturday. With a weakened ridge left in place over the
eastern Bering, this will allow a deep storm system to move to
the Aleutians Thursday night and Friday. More significantly, this
storm will then progress eastward along the Aleutians and Alaska
Peninsula next weekend as the upper ridge retreats to the Arctic.
This will open the way for precip and warmer air to move into the
southern mainland as soon as early next week.

&&

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

&&

SYNOPSIS AND MODEL DISCUSSION...DK
SOUTHCENTRAL ALASKA...EZ
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...CB
LONG TERM...SEB