Gale Warning 48, NWS Fairbanks, AK

623 
FZAK69 PAFG 232256
OFFAFG

EXPERIMENTAL OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE FAIRBANKS AK
256 PM AKDT SUN SEP 23 2012

OFFSHORE WATERS FORECAST FOR THE US ARCTIC WATERS

SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF
THE COMBINED WIND WAVE AND SWELL HEIGHT. INDIVIDUAL WAVES MAY BE
TWICE AS HIGH.

PKZ599-241230-
256 PM AKDT SUN SEP 23 2012

.SYNOPSIS FOR ARCTIC WATERS...
A 985 MB LOW 60 NM NORTHWEST OF POINT HOPE WILL MOVE TO NEAR
BARROW AS 1005 MB LOW BY 4AM TUE AND THEN MOVE NORTHEAST AND
WEAKEN. A 990 MB LOW 100 NM NORTH OF BARTER ISLAND WILL MOVE TO
300 NM NORTH OF BARTER ISLAND BY 4AM MON AND THEN CONTINUE MOVING
NORTH. 

$$

PKZ500-241230-
WESTERN US ARCTIC OFFSHORE-
256 PM AKDT SUN SEP 23 2012

.TONIGHT...E WINDS 30 KT. SEAS 8 FT.  FOG. SNOW.
.MON...E WINDS 20 KT. SEAS 7 FT. FOG. SNOW.
.MON NIGHT...N WINDS 25 KT. SEAS 9 FT. FREEZING SPRAY. 
.TUE...N WINDS 25 KT. SEAS 9 FT. FREEZING SPRAY. 
.TUE NIGHT...N WINDS 15 KT. SEAS 7 FT. 
.WED...W WINDS 15 KT. SEAS 8 FT. 
.THU...NW WINDS 15 KT. SEAS 8 FT. 
.FRI...W WINDS 15 KT. SEAS 5 FT.  

$$

PKZ505-241230-
CENTRAL US ARCTIC OFFSHORE-
256 PM AKDT SUN SEP 23 2012

.TONIGHT...N WINDS 20 KT. SEAS 7 FT. FOG. 
.MON...W WINDS 25 KT. SEAS 7 FT. FOG. 
.MON NIGHT...W WINDS 30 KT. SEAS 9 FT. FREEZING SPRAY.
.TUE...N WINDS 25 KT. SEAS 10 FT. FREEZING SPRAY. 
.TUE NIGHT...NW WINDS 20 KT. SEAS 9 FT. FREEZING SPRAY. 
.WED...W WINDS 20 KT. SEAS 7 FT. 
.THU...NW WINDS 15 KT. SEAS 6 FT. 
.FRI...W WINDS 20 KT. SEAS 6 FT.  

$$

PKZ510-241230-
EASTERN US ARCTIC OFFSHORE-
256 PM AKDT SUN SEP 23 2012

.TONIGHT...N WINDS 20 KT BECOMING W AFTER MIDNIGHT. SEAS 7 FT. FOG.
.MON...W WINDS 30 KT. SEAS 8 FT. FOG.
.MON NIGHT...SW WINDS 30 KT. SEAS 8 FT. FREEZING SPRAY. FOG.
.TUE...W WINDS 30 KT. SEAS 8 FT. 
.TUE NIGHT...W WINDS 20 KT. SEAS 9 FT. FREEZING SPRAY. 
.WED...W WINDS 15 KT. SEAS 6 FT. 
.THU...N WINDS 20 KT. SEAS 5 FT. 
.FRI...W WINDS 20 KT. SEAS 6 FT.  

$$

SEP 12

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
210 AM AKDT SUN SEP 23 2012

.DISCUSSION...
UPPER AIR...
MODERATELY STRONG SOUTHERLY FLOW ALOFT OVER THE EASTERN
INTERIOR AND ACROSS THE ALASKA RANGE WILL END THIS EVENING
AS A SHORT WAVE TROUGH SWEEPS NORTHWARD...RESULTING IN
A LIGHTER SOUTHWEST FLOW. THIS WILL BRING TO AN END TO
THE CHINOOK WINDS IN THE ALASKA RANGE AND BRING TEMPERATURES
DOWN TO MORE SEASONABLE LEVELS. A LIGHTER SOUTHERLY FLOW
IS EXPECTED TO REDEVELOP OVER THE CENTRAL AND EASTERN
INTERIOR MONDAY NIGHT...BUT THIS WILL BE RATHER SHORT LIVED
AS A BROAD LONG WAVE TROUGH BECOMES ESTABLISHED OVER NORTHERN
ALASKA BY THURSDAY.

SURFACE...A 987 MB LOW OVER KOTZEBUE SOUND WILL MOVE TO
NORTHWEST OF CAPE LISBURNE BY LATE TONIGHT WHILE DEVELOPING A
TIGHTER CIRCULATION. AS THE LOW LIFTS NORTHWARD...STRONG WEST
TO SOUTHWEST WINDS WILL DEVELOP OVER THE CHUKCHI SEA COAST...WITH
SMALL CRAFT ADVISORY WINDS DEVELOPING OVER KOTZEBUE SOUND. THE
LOW IS PROGGED TO MOVE NORTHEAST AND WEAKEN MONDAY AND MONDAY
NIGHT...BUT MODEL SOLUTIONS VARY SO THERE IS SOME UNCERTAINTY IN
THE POSITION AND STRENGTH OF THE SYSTEM. WIND GUSTS NEAR THE
ALASKA RANGE ARE NOW BELOW ADVISORY LEVELS...BUT THE NORMALLY WIND
SPOTS IN AKZ223 AND AKZ226 COULD SEW A FEW GUSTS TO 50 MPH LATER
TODAY AS ONE FINAL SHORT BURST OF STRONGER WINDS ALOFT MOVES
ACROSS THE ALASKA RANGE.

COASTAL HAZARD POTENTIAL...

HIGH SURF IS EXPECTED TO BEGIN AT SHISMAREF LATE THIS
MORNING AND SPREAD TO THE REST OF THE COAST TO POINT HOPE
INCLUDING KOTZEBUE SOUND BY LATE SUNDAY AFTERNOON. HIGH SURF
CONDITIONS WILL CONTINUE THROUGH MONDAY. THE STRONGEST WINDS AND
HIGHEST SURF WILL BE ALONG THE COAST FROM KIVALINA NORTH SUNDAY
NIGHT AND MONDAY. ALONG THE COAST IN AKZ210 LESS WAVE ACTION
IS EXPECTED BUT SEA LEVELS WILL LIKELY BE ELEVATED.

&&

.HYDROLOGY...
A FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM AKDT SUNDAY
FOR THE NENANA RIVER FROM CARLO CREEK TO ITS MOUTH AT THE TANANA
RIVER. AFTER A LONG CREST BETWEEN 14.5 AND 14.9 FEET...THE NENANA
RIVER AT HEALY HAS STARTED TO FALL. THE STAGE AT 11 PM SAT WAS
14.0 FEET. THE NENANA RIVER AT HEALY EXPECTED TO CONTINUE TO FALL
TODAY AND TONIGHT. DOWNRIVER FROM HEALY...THE RIVER WILL REMAIN
HIGH AND NEAR ITS CREST FOR MOST OF TODAY. THE LOWER REACHES OF
THE RIVER NEAR NENANA ARE EXPECTED TO FALL BELOW FLOOD STAGE BY
THIS EVENING.

.FIRE WEATHER...GUSTY WINDS CONTINUING NEAR THE ALASKA RANGE TODAY
BUT MIN RH WILL NOT BE LOW ENOUGH FOR RED FLAGS.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
FLOOD WARNING FOR THE NENANA RIVER FROM CARLO CREEK ITS
MOUTH AT THE TANANA RIVER.

WIND ADVISORY FOR AKZ223-AKZ226.

HIGH SURF ADVISORY FOR AKZ207-AKZ209-AKZ210.

SMALL CRAFT ADVISORY FOR PKZ200-PKZ210-PKZ215-PKZ230-PKZ235.

GALE WARNING FOR PKZ220-PKZ225.
&&

RF SEP 12