Gale Warning 56, NWS Fairbanks, AK

248 
FZAK51 PAFG 231008
CWFNSB

COASTAL WATERS FORECAST FOR ARCTIC ALASKA
NATIONAL WEATHER SERVICE FAIRBANKS AK
208 AM AKDT SAT APR 23 2011

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.

PKZ298-240115-
208 AM AKDT SAT APR 23 2011

.SYNOPSIS FOR ARCTIC COAST...
A RIDGE OF HIGH PRESSURE OVER THE BEAUFORT SEA AND THE NORTHERN
CHUKCHI SEA WILL SLOWLY WEAKEN THROUGH SUNDAY. A TROUGH OF LOW
PRESSURE ACROSS THE SOUTHERN CHUKCHI SEA WILL MOVE INTO THE GULF
OF ANADYR ON SUNDAY. 

$$

PKZ225-240115-
CAPE THOMPSON TO CAPE BEAUFORT-
208 AM AKDT SAT APR 23 2011

...GALE WARNING IN EFFECT THROUGH LATE THIS AFTERNOON...
...BRISK WIND ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
SUNDAY MORNING...

.TODAY...NE WINDS 35 KT.
.TONIGHT...NE WINDS 30 KT.
.SUN...NE WINDS 30 KT. 
.SUN NIGHT...NE WINDS 25 KT.
.MON...N WINDS 15 KT.
.MON NIGHT...N WINDS 15 KT. 
.TUE...S WINDS 10 KT.
.WED...SW WINDS 15 KT.

$$

PKZ230-240115-
CAPE BEAUFORT TO POINT FRANKLIN-
208 AM AKDT SAT APR 23 2011

...BRISK WIND ADVISORY IN EFFECT THROUGH EARLY SUNDAY MORNING
SOUTH OF ICY CAPE...

.TODAY...NE WINDS 20 KT...EXCEPT 30 KT SOUTH OF ICY CAPE. FOG.
.TONIGHT...NE WINDS 20 KT...EXCEPT 30 KT SOUTH OF ICY CAPE. FOG.
.SUN...E WINDS 25 KT.
.SUN NIGHT...NE WINDS 15 KT.
.MON...N WINDS 15 KT. 
.MON NIGHT...S WINDS 10 KT.
.TUE...SW WINDS 10 KT. 
.WED...SW WINDS 10 KT.

$$

PKZ235-240115-
POINT FRANKLIN TO CAPE HALKETT-
208 AM AKDT SAT APR 23 2011

.TODAY...NE WINDS 15 KT. FOG IN THE MORNING.
.TONIGHT...E WINDS 15 KT. FOG.
.SUN...E WINDS 10 KT BECOMING W AFTER NOON.
.SUN NIGHT...W WINDS 10 KT.
.MON...W WINDS 15 KT. 
.MON NIGHT...W WINDS 10 KT. 
.TUE...SW WINDS 10 KT.
.WED...SW WINDS 10 KT.  

$$

PKZ240-240115-
CAPE HALKETT TO FLAXMAN ISLAND-
208 AM AKDT SAT APR 23 2011

.TODAY...NE WINDS 20 KT. FOG IN THE MORNING.
.TONIGHT...NE WINDS 15 KT. FOG.
.SUN...N WINDS 10 KT.
.SUN NIGHT...N WINDS 10 KT BECOMING W.
.MON...W WINDS 15 KT. 
.MON NIGHT...W WINDS 15 KT. 
.TUE...S WINDS 10 KT.
.WED...W WINDS 15 KT.

$$

PKZ245-240115-
FLAXMAN ISLAND TO DEMARCATION POINT-
208 AM AKDT SAT APR 23 2011

.TODAY...E WINDS 15 KT. FOG IN THE MORNING.
.TONIGHT...E WINDS 15 KT. FOG.
.SUN...NE WINDS 10 KT.
.SUN NIGHT...NE WINDS 10 KT BECOMING W. 
.MON...W WINDS 15 KT. 
.MON NIGHT...W WINDS 15 KT. 
.TUE...NE WINDS 10 KT. 
.WED...W WINDS 15 KT.

$$

RL/CB APR 11

241 
FZAK51 PAFG 232126
CWFNSB

COASTAL WATERS FORECAST FOR ARCTIC ALASKA
NATIONAL WEATHER SERVICE FAIRBANKS AK
126 PM AKDT SAT APR 23 2011

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.

PKZ298-241230-
126 PM AKDT SAT APR 23 2011

.SYNOPSIS FOR ARCTIC COAST...
A RIDGE OF HIGH PRESSURE OVER THE BEAUFORT SEA AND THE NORTHERN
CHUKCHI SEA WILL SLOWLY WEAKEN THROUGH SUNDAY. A TROUGH OF LOW
PRESSURE ACROSS THE SOUTHERN CHUKCHI SEA WILL MOVE INTO THE GULF
OF ANADYR ON SUNDAY.

$$

PKZ225-241230-
CAPE THOMPSON TO CAPE BEAUFORT-
126 PM AKDT SAT APR 23 2011

...BRISK WIND ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.TONIGHT...NE WINDS 30 KT. 
.SUN...NE WINDS 30 KT. 
.SUN NIGHT...NE WINDS 25 KT. 
.MON...N WINDS 25 KT. 
.MON NIGHT...N WINDS 15 KT. 
.TUE...W WINDS 10 KT. 
.TUE NIGHT...NW WINDS 10 KT. 
.WED...N WINDS 10 KT. 
.THU...N WINDS 10 KT.  

$$

PKZ230-241230-
CAPE BEAUFORT TO POINT FRANKLIN-
126 PM AKDT SAT APR 23 2011

...BRISK WIND ADVISORY IN EFFECT THROUGH EARLY SUNDAY MORNING...

.TONIGHT...NE WINDS 30 KT. 
.SUN...E WINDS 25 KT DIMINISHING TO 20 KT BY AFTERNOON. 
.SUN NIGHT...NE WINDS 20 KT. 
.MON...W WINDS 15 KT. 
.MON NIGHT...SW WINDS 10 KT. 
.TUE...S WINDS 10 KT. 
.TUE NIGHT...NE WINDS 10 KT. 
.WED...NW WINDS 10 KT. 
.THU...N WINDS 10 KT.  

$$

PKZ235-241230-
POINT FRANKLIN TO CAPE HALKETT-
126 PM AKDT SAT APR 23 2011

.TONIGHT...E WINDS 10 KT. 
.SUN...E WINDS 10 KT BECOMING W. 
.SUN NIGHT...W WINDS 15 KT. 
.MON...W WINDS 15 KT. 
.MON NIGHT...W WINDS 10 KT. 
.TUE...SW WINDS 10 KT. 
.TUE NIGHT...W WINDS 10 KT. 
.WED...W WINDS 10 KT. 
.THU...NW WINDS 10 KT.  

$$

PKZ240-241230-
CAPE HALKETT TO FLAXMAN ISLAND-
126 PM AKDT SAT APR 23 2011

.TONIGHT...E WINDS 15 KT. 
.SUN...NE WINDS 10 KT. 
.SUN NIGHT...W WINDS 15 KT. 
.MON...W WINDS 15 KT. 
.MON NIGHT...W WINDS 15 KT. 
.TUE...SW WINDS 10 KT. 
.TUE NIGHT...N WINDS 10 KT. 
.WED...N WINDS 10 KT. 
.THU...N WINDS 10 KT.  

$$

PKZ245-241230-
FLAXMAN ISLAND TO DEMARCATION POINT-
126 PM AKDT SAT APR 23 2011

.TONIGHT...E WINDS 15 KT. 
.SUN...E WINDS 10 KT BECOMING N. 
.SUN NIGHT...W WINDS 15 KT. 
.MON...W WINDS 15 KT. 
.MON NIGHT...W WINDS 15 KT. 
.TUE...W WINDS 10 KT. 
.TUE NIGHT...NE WINDS 10 KT. 
.WED...NE WINDS 10 KT. 
.THU...NE WINDS 10 KT.  

$$

CF/CC APR 11

NORTHERN ALASKA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE FAIRBANKS AK
418 AM AKDT FRI APR 22 2011

CORRECTED PARAGRAPH THREE

.DISCUSSION...
UPPER LEVELS...A LOW ACROSS NW AK THIS MORNING WILL EXTEND FROM THE
CHUKOTSK PENINSULA TO NEAR ST LAWRENCE ISLAND THIS EVENING...AND
WILL CONTINUE MOVING SOUTHWEST AND INTO THE CENTRAL BERING SEA BY
THE END OF THE WEEKEND. ANOTHER LOW JUST SOUTH OF THE EASTERN
ALEUTIANS WILL SLOWLY MOVE TO NEAR KODIAK ISLAND BY SUN PM.
RIDGING WILL BUILD NORTH FROM BC INTO THE INTERIOR DURING THE
NEXT COUPLE OF DAYS BRINGING A MUCH WARMER AIRMASS TO THE
INTERIOR.

SURFACE...A RIDGE ACROSS THE HIGH ARCTIC FROM THE EAST SIBERIAN SEA
TO THE BEAUFORT SEA WILL GRADUALLY RETREAT BACK INTO SIBERIA DURING
THE NEXT DAYS. A 978 MB LOW 250 MILES SSW OF COLD BAY AT 12Z THIS
MORNING WILL GET ABSORBED BY A NEW LOW TO IT'S SOUTH AND MOVE TO
THE AK PENINSULA AND WEAKEN TO A 990 MB LOW BY SUN PM. A FRONTAL
BOUNDARY EXTENDS FROM THE LOW TO NEAR MCGRATH AND EXTENDS JUST
NORTH OF THE AK RANGE EARLY THIS MORNING. THE FRONT WILL WEAKEN TO
AN INVERTED TROUGH AND WILL EXTEND FROM BRISTOL BAY TO NEAR NOME
BY 00Z SUN.

INTERIOR...AS THE UPPER RIDGE CONTINUES TO BUILD INTO THE INTERIOR
FROM BC THE AIRMASS WILL CONTINUE TO WARM THROUGH 00Z SUN. THE 850
MB TEMP ON THE PAFA 12Z SOUNDING WAS -6C THIS MORNING...AND BOTH
THE GFS AND NAM HAVE 850 MB TEMPS WARMING TO ABOVE 0C BY SAT NIGHT
AND THEN REMAINING NEARLY STEADY INTO EARLY NEXT WEEK. SHOULD SEE
TEMPS AOA 50F ACROSS THE SOUTHERN INTERIOR THIS WEEKEND WITH A
NOTICEABLE WARM-UP ALL THE WAY TO THE SOUTHEAST BROOKS RANGE BY
SUNDAY. DEVELOPING CHINOOK FLOW TODAY WILL LIKELY PRODUCE SOME
SCATTERED RAIN AND SNOW SHOWERS ALONG THE SOUTH SLOPES OF THE AK
RANGE...BUT WITH NO PRECIPITATION IMMEDIATELY DOWNWIND OF THE
RANGE. A FEW SNOW SHOWERS ARE POSSIBLE FURTHER TO THE NORTH ACROSS
THE UPLANDS IN ZONE 220. THE WIND WILL PICK UP TODAY IN THE
TYPICALLY WINDY AREAS IN AND NEAR THE AK RANGE WITH GUSTS TO 50
MPH POSSIBLE THIS AFTERNOON AND EVENING.

NORTH SLOPE...COLDER AIR WILL REMAIN LOCKED UP IN THE VALLEYS OF THE
BROOKS RANGE AND ALONG THE COASTAL PLAIN.  A MODERATE EAST TO
NORTHEAST WIND OF 15 TO 25 MPH WILL PRODUCE AREAS OF STATUS AND
FOG...BUT NO ORGANIZED SNOWFALL IS EXPECTED THROUGH THE WEEKEND.
THE AIRMASS WILL BEGIN TO SLOWLY MODERATE BY SUNDAY AS THE UPPER
RIDGE CONTINUES TO BUILD TO THE NORTH.

WEST COAST...THE AIRMASS ALONG THE WEST COAST WILL MODERATE THE
NEXT COUPLE OF DAYS AS THE UPPER LOW SWINGS OUT ACROSS THE NORTHERN
BERING SEA TO THE DATELINE BY 00Z SUN. PRECIPITATION IS EXPECTED TO
BE FOCUSED ALONG THE FRONTAL BOUNDARY ASSOCIATED WITH THE LOW TO
THE SOUTH. BY SAT PM THE AIRMASS SHOULD HAVE MODERATED ENOUGH THAT
MOST OF THE PRECIPITATION WILL CHANGE FROM SNOW TO RAIN...BUT IT
REMAINS COLD ENOUGH FROM ABOUT NOME WEST FOR MORE SNOW THAN RAIN.
IT LOOKS LIKE ENOUGH GRADIENT FOR BRISK WINDS FOR THE NEXT FEW
FORECAST PERIODS FROM ABOUT ICY CAPE SOUTH.

&&

.FIRE WEATHER...CHINOOK FLOW EXPECTED THROUGH THE AK RANGE THROUGH
SAT MORNING. WIND GUSTS TO 50 MPH ARE POSSIBLE AT THE TYPICAL
WINDY SPOTS IN AND NEAR THE ALASKA RANGE. MINIMUM RH'S SHOULD
REMAIN ABOVE 30 PCT.

&&

.HYDROLOGY...NONE ATTM. A WARM-UP WILL SEND TEMPS INTO THE 50S IN
THE SOUTHERN INTERIOR THIS WEEKEND WHICH WILL INCREASE RUNOFF FROM
SNOWMELT. THE RISK OF ICE JAMS WILL BE ON THE INCREASE IN THE
SOUTHERN INTERIOR INTO THE MIDDLE TANANA VALLEY DURING THE NEXT
WEEK TO 10 DAYS AS TEMPS REMAIN MILD.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
BRISK WIND ADVISORY FOR PKZ200-PKZ210-PKZ220-PKZ225-PKZ230.
&&

CB APR 11