Gale Warning 50, NWS Fairbanks, AK

619 
FZAK51 PAFG 031143
CWFNSB

COASTAL WATERS FORECAST FOR ARCTIC ALASKA
NATIONAL WEATHER SERVICE FAIRBANKS AK
343 AM AKDT MON SEP 3 2012

ARCTIC ALASKA COASTAL WATERS OUT 100 NM

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT THE AVERAGE OF THE HIGHEST ONE-
THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ298-040245-
343 AM AKDT MON SEP 3 2012

.SYNOPSIS FOR ARCTIC COAST...
A RIDGE OF HIGH PRESSURE WILL PERSIST OVER THE NORTHERN CHUKCHI
SEA AND THE BEAUFORT SEA THROUGH TUESDAY. A 982 MB LOW OVER
KUSKOKWIM BAY WILL MOVE TO THE BERING STRAIT BY NOON TUESDAY
WEAKENING TO 990 MB.

$$

PKZ225-040245-
CAPE THOMPSON TO CAPE BEAUFORT-
343 AM AKDT MON SEP 3 2012

...GALE WARNING IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...NE WINDS 40 KT. SEAS 12 FT. 
.TONIGHT...NE WINDS 40 KT. SEAS 12 FT. RAIN AND FOG.
.TUE...NE WINDS 30 KT. SEAS 12 FT. RAIN AND FOG.
.TUE NIGHT...E WINDS 20 KT. SEAS 8 FT. 
.WED...NE WINDS 15 KT. SEAS 5 FT. 
.WED NIGHT...NW WINDS 20 KT. SEAS 6 FT. 
.THU...W WINDS 20 KT. SEAS 6 FT. 
.FRI...NW WINDS 30 KT. SEAS 6 FT.  

$$

PKZ230-040245-
CAPE BEAUFORT TO POINT FRANKLIN-
343 AM AKDT MON SEP 3 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH EARLY TUESDAY
MORNING...

.TODAY...E WINDS 30 KT. SEAS 8 FT. 
.TONIGHT...NE WINDS 35 KT. SEAS 10 FT. RAIN AND FOG.
.TUE...E WINDS 30 KT. SEAS 10 FT. RAIN AND SNOW. 
.TUE NIGHT...E WINDS 25 KT. SEAS 8 FT. 
.WED...NE WINDS 15 KT. SEAS 5 FT. 
.WED NIGHT...NW WINDS 20 KT. SEAS 5 FT. 
.THU...W WINDS 20 KT. SEAS 6 FT. 
.FRI...NW WINDS 25 KT. SEAS 7 FT.  

$$

PKZ235-040245-
POINT FRANKLIN TO CAPE HALKETT-
343 AM AKDT MON SEP 3 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...E WINDS 15 KT INCREASING TO 25 KT AROUND NOON.
SEAS 6 FT.
.TONIGHT...E WINDS 30 KT. SEAS 9 FT. 
.TUE...E WINDS 30 KT. SEAS 9 FT. RAIN AND SNOW. 
.TUE NIGHT...E WINDS 25 KT. SEAS 8 FT. 
.WED...E WINDS 15 KT. SEAS 6 FT. 
.WED NIGHT...NE WINDS 10 KT. SEAS 5 FT. 
.THU...W WINDS 25 KT. SEAS 9 FT. 
.FRI...W WINDS 25 KT. SEAS 10 FT.  

$$

PKZ240-040245-
CAPE HALKETT TO FLAXMAN ISLAND-
343 AM AKDT MON SEP 3 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...E WINDS 15 KT INCREASING TO 25 KT BY NOON. SEAS 7 FT.
.TONIGHT...E WINDS 30 KT. SEAS 8 FT. 
.TUE...E WINDS 30 KT. SEAS 8 FT. 
.TUE NIGHT...E WINDS 20 KT. SEAS 6 FT. 
.WED...E WINDS 15 KT. SEAS 5 FT. 
.WED NIGHT...SW WINDS 15 KT. SEAS 4 FT. 
.THU...SW WINDS 25 KT. SEAS 7 FT. 
.FRI...SW WINDS 25 KT. SEAS 9 FT.  

$$

PKZ245-040245-
FLAXMAN ISLAND TO DEMARCATION POINT-
343 AM AKDT MON SEP 3 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...E WINDS 15 KT INCREASING TO 25 KT BY NOON. SEAS 7 FT.
.TONIGHT...E WINDS 30 KT. SEAS 8 FT. 
.TUE...E WINDS 25 KT. SEAS 7 FT. 
.TUE NIGHT...E WINDS 15 KT. SEAS 6 FT. 
.WED...E WINDS 15 KT. SEAS 5 FT. 
.WED NIGHT...SW WINDS 20 KT. SEAS 5 FT. 
.THU...SW WINDS 25 KT. SEAS 7 FT. 
.FRI...SW WINDS 25 KT. SEAS 10 FT.  

$$

RF/DJH SEP 12

659 
FZAK51 PAFG 032213
CWFNSB

COASTAL WATERS FORECAST FOR ARCTIC ALASKA
NATIONAL WEATHER SERVICE FAIRBANKS AK
213 PM AKDT MON SEP 3 2012

ARCTIC ALASKA COASTAL WATERS OUT 100 NM

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT THE AVERAGE OF THE HIGHEST ONE-
THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ298-041315-
213 PM AKDT MON SEP 3 2012

.SYNOPSIS FOR ARCTIC COAST...
A RIDGE OF HIGH PRESSURE WILL PERSIST OVER THE NORTHERN CHUKCHI
SEA AND THE BEAUFORT SEA THROUGH TUESDAY. A 985 MB LOW OVER
NORTON SOUND WILL MOVE TO THE BERING STRAIT BY TUESDAY MORNING
WEAKENING TO 992 MB.

$$

PKZ225-041315-
CAPE THOMPSON TO CAPE BEAUFORT-
213 PM AKDT MON SEP 3 2012

...GALE WARNING IN EFFECT THROUGH EARLY TUESDAY MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON...

.TONIGHT...NE WINDS 40 KT. SEAS 12 FT. FOG...RAIN.
.TUE...NE WINDS 30 KT. SEAS 12 FT. FOG...RAIN.
.TUE NIGHT...E WINDS 20 KT. SEAS 8 FT. FOG...RAIN.
.WED...NE WINDS 15 KT. SEAS 5 FT. 
.WED NIGHT...N WINDS 20 KT. SEAS 6 FT. 
.THU...NE WINDS 20 KT. SEAS 6 FT. 
.THU NIGHT...W WINDS 20 KT. SEAS 6 FT. 
.FRI...NW WINDS 30 KT. SEAS 6 FT. 
.SAT...NW WINDS 25 KT. SEAS 6 FT.  

$$

PKZ230-041315-
CAPE BEAUFORT TO POINT FRANKLIN-
213 PM AKDT MON SEP 3 2012

...GALE WARNING IN EFFECT THROUGH EARLY TUESDAY MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON...

.TONIGHT...NE WINDS 35 KT. SEAS 10 FT. FOG...RAIN.
.TUE...NE WINDS 30 KT. SEAS 10 FT. FOG...RAIN.
.TUE NIGHT...E WINDS 25 KT. SEAS 8 FT. FOG...RAIN.
.WED...NE WINDS 20 KT. SEAS 5 FT. RAIN.
.WED NIGHT...NE WINDS 20 KT. SEAS 5 FT. 
.THU...NE WINDS 20 KT. SEAS 5 FT. 
.THU NIGHT...W WINDS 20 KT. SEAS 6 FT. 
.FRI...NW WINDS 25 KT. SEAS 7 FT. 
.SAT...NW WINDS 25 KT. SEAS 6 FT.  

$$

PKZ235-041315-
POINT FRANKLIN TO CAPE HALKETT-
213 PM AKDT MON SEP 3 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.TONIGHT...E WINDS 30 KT. SEAS 9 FT. 
.TUE...E WINDS 30 KT. SEAS 9 FT. FOG...RAIN.
.TUE NIGHT...E WINDS 25 KT. SEAS 8 FT. FOG...RAIN.
.WED...E WINDS 20 KT. SEAS 6 FT. RAIN.
.WED NIGHT...N WINDS 15 KT. SEAS 5 FT. 
.THU...N WINDS 20 KT. SEAS 6 FT. 
.THU NIGHT...SW WINDS 25 KT. SEAS 9 FT. 
.FRI...W WINDS 25 KT. SEAS 10 FT. 
.SAT...W WINDS 25 KT. SEAS 9 FT.  

$$

PKZ240-041315-
CAPE HALKETT TO FLAXMAN ISLAND-
213 PM AKDT MON SEP 3 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...E WINDS 30 KT. SEAS 8 FT. 
.TUE...E WINDS 30 KT. SEAS 8 FT. FOG...RAIN.
.TUE NIGHT...E WINDS 20 KT. SEAS 6 FT. 
.WED...E WINDS 15 KT. SEAS 5 FT. 
.WED NIGHT...NW WINDS 15 KT. SEAS 4 FT. 
.THU...W WINDS 20 KT. SEAS 5 FT. 
.THU NIGHT...SW WINDS 25 KT. SEAS 7 FT. 
.FRI...SW WINDS 25 KT. SEAS 9 FT. 
.SAT...SW WINDS 25 KT. SEAS 9 FT.  

$$

PKZ245-041315-
FLAXMAN ISLAND TO DEMARCATION POINT-
213 PM AKDT MON SEP 3 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...E WINDS 30 KT. SEAS 8 FT. 
.TUE...E WINDS 25 KT DIMINISHING TO 15KT BY AROUND NOON. 
SEAS 7 FT. RAIN.
.TUE NIGHT...E WINDS 10 KT. SEAS 5 FT. 
.WED...E WINDS 15 KT. SEAS 5 FT. 
.WED NIGHT...W WINDS 15 KT. SEAS 5 FT. 
.THU...W WINDS 25 KT. SEAS 5 FT. 
.THU NIGHT...SW WINDS 25 KT. SEAS 7 FT. 
.FRI...SW WINDS 25 KT. SEAS 10 FT. 
.SAT...SW WINDS 20 KT. SEAS 9 FT.  

$$

CF/SDB SEP 12

476 
FZAK51 PAFG 040938
CWFNSB

COASTAL WATERS FORECAST FOR ARCTIC ALASKA
NATIONAL WEATHER SERVICE FAIRBANKS AK
138 AM AKDT TUE SEP 4 2012

ARCTIC ALASKA COASTAL WATERS OUT 100 NM

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT THE AVERAGE OF THE HIGHEST ONE-
THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ298-050045-
138 AM AKDT TUE SEP 4 2012

.SYNOPSIS FOR ARCTIC COAST...
A 1017 MB HIGH 500 NM NORTH OF DEMARCATION POINT WILL MOVE EAST
TODAY AND INTO THE SOUTHWEST CANADIAN ARCHIPELAGO THIS EVENING. A
990 MB LOW WILL DEVELOP ALONG THE BEAUFORT SEA COAST WEDNESDAY
MORNING AND WILL STRENGTHEN TO 980 MB 250 NM NORTH OF DEMARCATION
POINT BY 4 AM AKDT THURSDAY.

$$

PKZ225-050045-
CAPE THOMPSON TO CAPE BEAUFORT-
138 AM AKDT TUE SEP 4 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...NE WINDS 30 KT BECOMING SE DECREASING TO 20 KT AFTER
NOON. SEAS 11 FT SUBSIDING TO 7 FT. RAIN.
.TONIGHT...SE WINDS 20 KT BECOMING NE. SEAS 7 FT SUBSIDING TO 5 FT.
.WED...NE WINDS 20 KT. SEAS 5 FT. 
.WED NIGHT...N WINDS 20 KT. SEAS 6 FT. 
.THU...NE WINDS 25 KT. SEAS 8 FT. 
.THU NIGHT...N WINDS 25 KT. SEAS 9 FT. 
.FRI...N WINDS 20 KT. SEAS 7 FT. 
.SAT...NW WINDS 15 KT. SEAS 4 FT.

$$

PKZ230-050045-
CAPE BEAUFORT TO POINT FRANKLIN-
138 AM AKDT TUE SEP 4 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TONIGHT...

.TODAY...E WINDS 30 KT. SEAS 9 FT...HIGHEST OFFSHORE.
.TONIGHT...E WINDS 25 KT. SEAS SUBSIDING TO 6 FT.
.WED...NE WINDS 20 KT. SEAS 6 FT. 
.WED NIGHT...NE WINDS 20 KT. SEAS 6 FT. 
.THU...NE WINDS 20 KT. SEAS 7 FT. 
.THU NIGHT...N WINDS 20 KT. SEAS 7 FT. 
.FRI...NW WINDS 15 KT. SEAS 5 FT.
.SAT...NW WINDS 15 KT. SEAS 4 FT.

$$

PKZ235-050045-
POINT FRANKLIN TO CAPE HALKETT-
138 AM AKDT TUE SEP 4 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY WEDNESDAY
MORNING...

.TODAY...E WINDS 30 KT. SEAS 9 FT...HIGHEST OFFSHORE.
.TONIGHT...E WINDS 25 KT. SEAS 8 FT. 
.WED...E WINDS 20 KT. SEAS 7 FT. 
.WED NIGHT...N WINDS 20 KT. SEAS 7 FT. 
.THU...N WINDS 20 KT. SEAS 9 FT. 
.THU NIGHT...NW WINDS 20 KT. SEAS 9 FT. 
.FRI...W WINDS 20 KT. SEAS 8 FT. 
.SAT...W WINDS 20 KT. SEAS 5 FT.

$$

PKZ240-050045-
CAPE HALKETT TO FLAXMAN ISLAND-
138 AM AKDT TUE SEP 4 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS MORNING...

.TODAY...E WINDS 30 KT DECREASING TO 20 KT AFTER NOON. SEAS 9 FT
SUBSIDING TO 7 FT...HIGHEST OFFSHORE.
.TONIGHT...E WINDS 20 KT. SEAS SUBSIDING TO 5 FT.
.WED...E WINDS 15 KT. SEAS 5 FT.
.WED NIGHT...NW WINDS 15 KT. SEAS 5 FT. 
.THU...W WINDS 20 KT. SEAS 8 FT. 
.THU NIGHT...W WINDS 25 KT. SEAS 9 FT. 
.FRI...W WINDS 25 KT. SEAS 9 FT. 
.SAT...W WINDS 20 KT. SEAS 5 FT.  

$$

PKZ245-050045-
FLAXMAN ISLAND TO DEMARCATION POINT-
138 AM AKDT TUE SEP 4 2012

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS MORNING...

.TODAY...E WINDS 25 KT BECOMING NE 15 KT. SEAS 8 FT SUBSIDING TO 5 FT. 
.TONIGHT...E WINDS 10 KT. SEAS 4 FT.
.WED...E WINDS 15 KT. SEAS 5 FT. 
.WED NIGHT...W WINDS 30 KT. SEAS 7 FT.
.THU...W WINDS 30 KT. SEAS 10 FT.
.THU NIGHT...W WINDS 30 KT. SEAS 10 FT. 
.FRI...W WINDS 25 KT. SEAS 10 FT. 
.SAT...W WINDS 20 KT. SEAS 5 FT.  

$$

JK/CB SEP 12

NORTHERN ALASKA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE FAIRBANKS AK
259 AM AKDT SUN SEP 2 2012

CORRECTED LINE 3 IN SIGNIFICANT RAIN PARAGRAPH

.DISCUSSION...

UPPER AIR...
A VERY ACTIVE AND PROGRESSIVE PATTERN WILL CONTINUE WITH
A SERIES OF SHORT WAVE TROUGHS AND RIDGES ALOFT TRAVERSING
THE NORTHERN ALASKA FORECAST AREA. A WEAKENING SHORT WAVE
WILL BE EXITING NORTHEAST ACROSS THE EASTERN INTERIOR THIS
MORNING. THE NEXT SHORT WAVE...WHICH WILL BE STRONGER...WILL
ARRIVE OVER THE SOUTHWEST ALASKA MAINLAND LATE SUNDAY
NIGHT...EXITING NORTH TO THE ARCTIC COAST BY TUESDAY AFTERNOON.
THIS WILL BE FOLLOWED BY A VERY STRONG SHORT WAVE ARRIVING OVER
THE SOUTHWEST ALASKA MAINLAND TUESDAY EVENING AND SWEEPING
NORTHEASTWARD ACROSS THE MAINLAND THROUGH WEDNESDAY AFTERNOON.

SURFACE...
986 MB LOW ABOUT 100 MILES SOUTHWEST OF THE PRIBILOFS AT 10 PM
SATURDAY WILL MOVE TO KUSKOKWIM BAY BY 4 AM MONDAY WITH CENTRAL
PRESSURE AROUND 982 MB. LOWEST CENTRAL PRESSURE WILL BE NEAR 980
MB THIS AFTERNOON. BY 4 AM TUESDAY THE LOW WILL OVER THE WESTERN
SEWARD PENINSULA FILLING TO AROUND 990 MB. A MUCH STRONGER LOW
WILL BE MOVING ACROSS THE SOUTHERN BERING SEA MONDAY NIGHT
AND TUESDAY...LOWEST CENTRAL PRESSURE WILL BE AROUND 972 MB
MON EVENING WITH THE CENTER AROUND 100 MILES WEST NORTHWEST OF
ADAK. BY TUESDAY EVENING...THE LOW WILL BE ABOUT 100 MILES
SOUTH OF NUNIVAK ISLAND WITH CENTRAL PRESSURE AROUND 976 MB.

SIGNIFICANT RAINFALL...
WIDESPREAD RAIN DEVELOPING ON THE WEST COAST SOUTH OF
THE SEWARD PENINSULA AND THE SOUTHERN PARTS OF THE WESTERN
INTERIOR SUNDAY AFTERNOON WITH THE APPROACH OF THE NEXT SYSTEM.
WIDESPREAD RAIN SPREADING NORTHWARD OVER MOST OF THE WEST COAST
AND WESTERN INTERIOR SUNDAY NIGHT AND CONTINUING INTO MONDAY. OVER
THE WEST COAST AND WESTERN INTERIOR THROUGH MONDAY... WIDESPREAD
RAINFALL AMOUNTS OF 0.5 TO 1 INCH EXPECTED...WITH SOME LOCAL
AMOUNTS OF UP TO 1.5 INCHES. ANOTHER EPISODE OF WIDESPREAD RAIN
SPREADING NORTHWARD ACROSS THE WEST COAST AND WESTERN INTERIOR
FROM MID DAY TUESDAY INTO TUESDAY NIGHT.

CHINOOK WINDS IN AND NEAR ALASKA RANGE PASSES...
SOUTH WINDS IN AND NEAR ALASKA RANGE PASSES WILL INCREASE
DURING THE DAY TODAY...GUSTS TO AROUND 50 MPH LIKELY IN THE
NORMALLY WINDY SPOTS TONIGHT AND MONDAY. WINDS MAY DIMINISH
SOME MONDAY NIGHT INTO TUESDAY MORNING BUT INCREASE AGAIN
TUESDAY AFTERNOON AS VERY STRONG SOUTHERLY FLOW ALOFT DEVELOPS.
STRONG WINDS LIKELY CONTINUING INTO WEDNESDAY. 700 MB WINDS
ACROSS THE ALASKA RANGE ARE PROGGED TO MAX OUT AT 60-80 KT.
MAXIMUM SURFACE GUSTS WILL ALMOST CERTAINLY REACH THE ADVISORY
LEVEL...GUSTS TO 70+ MPH WILL BE POSSIBLE IN THE MOST WIND
PRONE SPOTS.

MEDIUM RANGE FORECAST DISUSSION...
AN ACTIVE AND PROGRESSIVE PATTERN IS EXPECTED DURING THE MEDIUM
RANGE.  AT THE START OF THE MEDIUM RANGE TUE NIGHT A DEEP VERTICALLY
SFC LOW WILL BE FOUND IN THE SE BERING SEA.  THE LOW MOVES INTO THE
SW MAINLAND OF AK WED AND THEN WEAKENS AND QUICKLY EJECTS TO THE
NORTHEAST AND ENDS UP IN THE ARCTIC OCEAN BY THU MORNING.  A
MODERATE TO STRONG CHINOOK EXPECTED AHEAD OF THE LOW THAT WILL
BRING AT LEAST ADVISORY LEVEL AND POSSIBLY WARNING LEVEL WINDS TO
THE FAVORED WINDY SPOTS IN/NEAR THE AK RANGE.  THE FLOW TURNS
SOUTHWEST AS THE LOW PULLS AWAY ALLOWING AREAS OF RAIN AND A MUCH
COOLER AIR MASS TO SWEEP EAST ACROSS THE CENTRAL AND EASTERN
INTERIOR.  MODEL SPREAD THEN INCREASES LATE IN THE WEEK INTO NEXT
WEEKEND.  IT APPEARS LIKELY THAT NORTHERN AK WILL BE UNDER AN UPPER
TROUGH WITH COOL AND UNSETTLED WEATHER.  THE DETAILS OF SHORTWAVES
MOVING EAST ACROSS THE BERING AS WELL AS ENERGY THAT MAY DROP DOWN
INTO NORTHERN AK FROM THE HIGH ARCTIC REMAIN HIGHLY UNCERTAIN. CB

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NORTH TO NORTHEAST
GALES THROUGH THE BERING STRAIT AND OVER THE NORTHWEST
CAPES MONDAY...DIMINISHING MONDAY NIGHT. NO COASTAL FLOODING
EXPECTED BUT THERE WILL BE ROUGH SEAS THROUGH THE BERING
AND OFFSHORE FROM THE NORTHWEST CAPES.

&&

.HYDROLOGY...
A FLOOD WATCH REMAINS IN EFFECT FOR THE KOYUKUK RIVER AT
ALLAKAKET AND HUGHES. THE KOYUKUK RIVER BELOW THE JOHN RIVER
CRESTED SATURDAY AFTERNOON AND IS NOW FALLING. THE KOYUKUK
RIVER AT BETTLES APPEARS TO HAVE CRESTED SATURDAY AND
SATURDAY EVENING AND WILL LIKELY STARTING TO FALL SLOWLY
TODAY.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
FLOOD WATCH FOR THE KOYUKUK RIVER AT ALLAKAKET AND HUGHES.

SMALL CRAFT ADVISORY FOR PKZ220-PKZ225-PKZ230-PKZ240-PKZ245.
&&

RF/CB SEP 12