Small Craft Advisory 340, NWS Anchorage, AK

000 
FZAK52 PAFC 192307
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 PM AKDT SUN APR 19 2009

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.

PKZ199-201400-
400 PM AKDT SUN APR 19 2009
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 986 MB LOW 370 NM NORTHWEST OF SHEMYA MOVES WEST AND WEAKENS SUN
NIGHT. A DEVELOPING 1002 MB LOW 150 NM NORTHWEST OF ADAK MONDAY
MORNING MOVES TO 490 NM NORTH OF SHEMYA AT 984 MB TUESDAY AFTERNOON.

$$

PKZ150-201400-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA SITKINAK TO CASTLE
CAPE
400 PM AKDT SUN APR 19 2009

.TONIGHT...N WIND 20 KT. SEAS 6 FT. 
.MON AND MON NIGHT...NW WIND 20 KT. SEAS 5 FT. 
.TUE...W WIND 20 KT. SEAS 4 FT. 
.TUE NIGHT...S WIND 20 KT. SEAS 5 FT. 
.WED...S WIND 30 KT. SEAS 10 FT. 
.THU...SW WIND 25 KT. SEAS 11 FT. 
.FRI...SW WIND 20 KT. SEAS 10 FT.  

$$

PKZ155-201400-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA CASTLE CAPE TO CAPE
SARICHEF
400 PM AKDT SUN APR 19 2009

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW WIND 25 KT. FREEZING SPRAY ALONG THE COAST. SEAS 6 FT. 
.MON...NW WIND 15 KT. SEAS 4 FT. 
.MON NIGHT...S WIND 20 KT. SEAS 4 FT. 
.TUE...S WIND 35 KT. SEAS 8 FT. 
.TUE NIGHT...S WIND 40 KT. SEAS 12 FT. 
.WED...S WIND 30 KT. SEAS 13 FT. 
.THU...SW WIND 25 KT. SEAS 14 FT. 
.FRI...S WIND 25 KT. SEAS 13 FT.  

$$

PKZ160-201400-
BRISTOL BAY WATERS CAPE NEWENHAM TO PORT HEIDEN
400 PM AKDT SUN APR 19 2009

.TONIGHT...NW WIND 15 KT DIMINISHING TO 10 KT AFTER MIDNIGHT.  
.MON...NW WIND 10 KT. 
.MON NIGHT...W WIND 10 KT. 
.TUE AND TUE NIGHT...SE WIND 30 KT. 
.WED...S WIND 25 KT. 
.THU...SW WIND 20 KT. 
.FRI...S WIND 20 KT.  

$$

PKZ165-201400-
PORT HEIDEN TO CAPE SARICHEF
400 PM AKDT SUN APR 19 2009

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT. 
.MON...VARIABLE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT. 
.MON NIGHT...SE WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT. 
.TUE...SE WIND 40 KT. SEAS IN ICE FREE WATERS 8 FT.
.TUE NIGHT...SE WIND 40 KT. SEAS IN ICE FREE WATERS 10 FT. 
.WED...S WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT. 
.THU...SW WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.FRI...S WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT.  

$$

PKZ180-201400-
SOUTHWEST ALASKA WATERS CAPE NEWENHAM TO DALL POINT
400 PM AKDT SUN APR 19 2009

...BRISK WIND ADVISORY MONDAY NIGHT...

.TONIGHT...NE WIND 10 KT. 
.MON...E WIND 10 KT BECOMING SE 15 KT IN THE AFTERNOON.  
.MON NIGHT...SE WIND 25 KT. 
.TUE AND TUE NIGHT...SE WIND 40 KT. 
.WED THROUGH FRI...S WIND 25 KT. 

$$

PKZ170-201400-
EASTERN ALEUTIANS CAPE SARICHEF TO NIKOLSKI
400 PM AKDT SUN APR 19 2009

...GALE WARNING MONDAY NIGHT...

.TONIGHT...NW WIND 15 KT BECOMING VARIABLE WIND 10 KT AFTER MIDNIGHT.
SEAS 3 FT. 
.MON...S WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS
BUILDING TO 7 FT.
.MON NIGHT...SE WIND 40 KT. SEAS 10 FT. 
.TUE...S WIND 50 KT. SEAS 15 FT. 
.TUE NIGHT...S WIND 35 KT. SEAS 16 FT. 
.WED...S WIND 20 KT. SEAS 14 FT. 
.THU...SW WIND 25 KT. SEAS 14 FT. 
.FRI...S WIND 35 KT. SEAS 16 FT.  

$$

PKZ171-201400-
UNALASKA BAY
400 PM AKDT SUN APR 19 2009

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...NW WIND 15 KT IN THE EVENING BECOMING VARIABLE LESS THAN
10 KT. SEAS 2 FT. 
.MON...S WIND 10 KT INCREASING TO 20 KT IN THE AFTERNOON. SEAS 3 FT.
.MON NIGHT...SE WIND 30 KT. SEAS 5 FT. 
.TUE...SE WIND 45 KT. SEAS 6 FT. 
.TUE NIGHT...S WIND 20 KT. SEAS 3 FT. 
.WED...S WIND 15 KT. SEAS 2 FT. 
.THU...SW WIND 15 KT. SEAS 2 FT. 
.FRI...S WIND 30 KT. SEAS 5 FT.  

$$

PKZ172-201400-
EASTERN ALEUTIANS NIKOLSKI TO ADAK
400 PM AKDT SUN APR 19 2009

...GALE WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...S WIND 20 KT INCREASING TO 30 KT AFTER MIDNIGHT. SEAS
BUILDING TO 9 FT. 
.MON...S WIND 35 KT. SEAS 12 FT. RAIN.
.MON NIGHT...S WIND 45 KT. SEAS 15 FT. RAIN AND SNOW SHOWERS. 
.TUE...SW WIND 45 KT. SEAS 16 FT. 
.TUE NIGHT...S WIND 25 KT. SEAS 13 FT. 
.WED AND THU...SW WIND 25 KT. SEAS 14 FT. 
.FRI...S WIND 35 KT. SEAS 18 FT.  

$$

PKZ175-201400-
WESTERN ALEUTIANS ADAK TO KISKA
400 PM AKDT SUN APR 19 2009

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S WIND 30 KT. SEAS 13 FT. RAIN.
.MON...SW WIND 30 KT BECOMING W 15 KT IN THE AFTERNOON. SEAS 12 FT.
RAIN.
.MON NIGHT...W WIND 15 KT. SEAS 10 FT. 
.TUE THROUGH WED...SW WIND 25 KT. SEAS 13 FT. 
.THU...S WIND 30 KT. SEAS 13 FT. 
.FRI...S WIND 40 KT. SEAS 16 FT.  

$$

PKZ176-201400-
WESTERN ALEUTIANS KISKA TO ATTU
400 PM AKDT SUN APR 19 2009

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW WIND 30 KT BECOMING W 20 KT AFTER MIDNIGHT. SEAS 13 FT.

.MON...W WIND 15 KT. SEAS 12 FT. 
.MON NIGHT...NW WIND 15 KT. SEAS 10 FT. 
.TUE...W WIND 30 KT. SEAS 12 FT. 
.TUE NIGHT...W WIND 40 KT. SEAS 14 FT. 
.WED...W WIND 30 KT. SEAS 13 FT. 
.THU...S WIND 30 KT. SEAS 11 FT. 
.FRI...E WIND 35 KT. SEAS 13 FT.  

$$

PKZ185-201400-
ST MATTHEW ISLAND WATERS
400 PM AKDT SUN APR 19 2009

...GALE WARNING MONDAY NIGHT...

.TONIGHT...SE WIND 25 KT. 
.MON...SE WIND 30 KT. RAIN AND SNOW. 
.MON NIGHT...SE WIND 40 KT. 
.TUE AND TUE NIGHT...SE WIND 45 KT. 
.WED AND THU...S WIND 25 KT. 
.FRI...SE WIND 20 KT.  

$$

PKZ179-201400-
PRIBILOF ISLANDS NEAR-SHORE WATERS
400 PM AKDT SUN APR 19 2009

...GALE WARNING MONDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT. PATCHY
FOG. 
.MON...SE WIND 25 KT. SEAS IN ICE FREE WATERS BUILDING TO 6 FT. 
.MON NIGHT...SE WIND 30 KT INCREASING TO 40 KT AFTER MIDNIGHT. SEAS
IN ICE FREE WATERS 10 FT. 
.TUE...SE WIND 45 KT. SEAS IN ICE FREE WATERS 15 FT.
.TUE NIGHT...S WIND 20 KT. SEAS IN ICE FREE WATERS 9 FT. 
.WED...S WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT. 
.THU...SW WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.FRI...S WIND 30 KT. SEAS IN ICE FREE WATERS 8 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
400 PM AKDT SAT APR 18 2009

.ANALYSIS AND UPPER LEVELS...THE UPPER LEVEL PATTERN HAS NOT CHANGED
MUCH THE LAST FEW DAYS. THE UPPER LEVEL LOW IN CENTERED JUST EAST OF
KODIAK ISLAND WITH THE UPPER LEVEL RIDGE OVER THE CENTRAL BERING SEA.
THIS PATTERN IS NOW SLOWLY PROGRESSING EASTWARD WITH THE RIDGE
EXPECTED TO MOVE OVER THE EASTERN BERING SEA AND SOUTHWEST ALASKA BY
MONDAY. THE CURRENT UPPER LEVEL LOW IN THE GULF WILL WEAKEN AS THE
RIDGE BECOMES THE DOMINATE FEATURE OVER THE STATE IN THE FIRST HALF
OF NEXT WEEK.
ON THE WEST SIDE OF THE RIDGE LIES THE NEXT FRONT AND LOW PRESSURE
SYSTEM. THE LOW COMPLEX IS WELL WEST OF THE FORECAST AREA BUT THE
FRONT WILL MAKE IT INTO THE WESTERN ALEUTIANS TONIGHT AND THEN
CONTINUE TO MOVE STEADILY EASTWARD INTO THE CENTRAL BERING SEA
MONDAY.

.SHORT TERM FORECAST...NUMEROUS RAIN SHOWERS ARE ROTATING AROUND THE
LOW IN THE GULF. SOME OF THESE COULD CHANCE TO SNOW SHOWERS ALONG THE
GULF COAST OVERNIGHT. THE STRONGEST DISTURBANCE ROTATING AROUND THIS
LOW WILL MOVE UP ALONG THE COAST BY MIDNIGHT AND THEN INTO THE COOK
INLET AND KODIAK AREAS AFTER MIDNIGHT. THE AFTERNOON FORECAST WILL
INCREASE THE CHANCES OF PRECIPITATION OVERNIGHT IN THE ENTIRE COOK
INLET REGION DUE TO THE STRENGTH OF THIS EASTERLY WAVE.
CLEARING SKIES IN SOUTHWEST ALASKA MAY DROP TEMPERATURES INTO THE
SINGLE DIGITS AGAIN OVERNIGHT IN THE KUSKOKWIM DELTA.
THE NORTHERLY FLOW WILL PERSIST IN THE EASTERN BERING SEA. THERE IS A
CONSIDERABLE AMOUNT OF STRATUS IN THE CENTRAL AND EASTERN BERING SEA
WHICH IS ENHANCED BY THE COLD AIR FLOWING OFF THE ICE EDGE WHICH IS
UNUSUALLY EXTENSIVE AND FAR SOUTH FOR THIS TIME OF YEAR.

.LONG TERM FORECAST...THE UPPER LEVEL RIDGE WILL BE LOCATED OVER THE
EASTERN BERING SEA AND SOUTHWEST ALASKA MONDAY. THE RIDGE WILL THEN
MOVE SLOWLY EASTWARD REACHING THE ALCAN BORDER WEDNESDAY NIGHT. THIS
WILL KEEP MOST OF THE MAINLAND PART OF THE STATE IN SPRINGLIKE
WEATHER DURING THE FIRST PART OF THE WEEK. A STRONG FRONT WITH DEEP
MOISTURE WILL MOVE IN BEHIND THE RIDGE AND BRING PRECIPITATION BACK
INTO THE AREA LATER IN THE WEEK.

.MODEL DISCUSSION...MODELS ARE IN RELATIVELY GOOD AGREEMENT THROUGH
TUESDAY.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE 172 175 176.
FIRE WEATHER...NONE.

APR 09