Gale Warning 356, NWS Anchorage, AK

980 
FZAK61 PAFC 251130
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
330 AM AKDT FRI APR 25 2014

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-260145-
330 AM AKDT FRI APR 25 2014
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 975 MB LOW OVER DUTCH HARBOR WILL MOVE TO 55N 155W LATE FRI
NIGHT...THEN STALL AND WEAKEN TO 983 MB BY LATE SAT NIGHT. THE
ASSOCIATED WEATHER FRONT WILL EXTEND INTO THE SOUTHERN GULF FRI
MORNING AND THEN MOVE TO THE NORTHERN AND EASTERN GULF BY SAT
NIGHT.

$$

PKZ351-260145-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
330 AM AKDT FRI APR 25 2014

...GALE WARNING THROUGH SATURDAY...

.TODAY...SE WIND 15 TO 25 KT INCREASING TO 35 KT IN THE
AFTERNOON. SEAS 6 FT BUILDING TO 11 FT IN THE AFTERNOON.
.TONIGHT...E WIND 30 TO 40 KT. SEAS 10 TO 18 FT. RAIN.
.SAT...E WIND 25 TO 40 KT. SEAS 14 TO 18 FT. RAIN.
.SAT NIGHT...E WIND 15 TO 25 KT. SEAS 13 TO 16 FT.
.SUN THROUGH MON...E WIND 10 TO 20 KT. SEAS 8 TO 13 FT.
.TUE...E WIND 15 KT. SEAS 6 FT.

$$

PKZ352-260145-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
330 AM AKDT FRI APR 25 2014

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE WIND 20 TO 35 KT INCREASING TO 30 TO 40 KT IN THE
AFTERNOON. SEAS 8 TO 16 FT. RAIN.
.TONIGHT...SE WIND 25 TO 40 KT. SEAS 11 TO 17 FT. RAIN.
.SAT AND SAT NIGHT...SE WIND 15 KT. SEAS 11 TO 14 FT.
.SUN...SE WIND 20 KT. SEAS 10 TO 16 FT.
.MON THROUGH TUE...NE WIND 15 KT. SEAS 5 TO 10 FT.

$$

161 
FZAK61 PAFC 252345
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
345 PM AKDT FRI APR 25 2014

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-261445-
345 PM AKDT FRI APR 25 2014
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 975 MB LOW NEAR 55N 160W WILL MOVE TO 55N 154W AT 981 MB SAT
AFTERNOON AND THEN REMAIN NEARLY STATIONARY AND WEAKEN TO 986 MB
SUN AFTERNOON.

$$

PKZ351-261445-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
345 PM AKDT FRI APR 25 2014

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...E WIND 30 TO 40 KT. SEAS 10 TO 18 FT. RAIN.
.SAT...E WIND 30 TO 40 KT DIMINISHING TO 20 TO 30 KT IN THE
AFTERNOON. SEAS 14 TO 18 FT. RAIN.
.SAT NIGHT...SE WIND 15 TO 25 KT. SEAS 15 FT. RAIN.
.SUN...SE WIND 20 KT. SEAS 11 TO 14 FT.
.SUN NIGHT...SE WIND 20 KT. SEAS 8 TO 12 FT.
.MON THROUGH WED...E WIND 10 TO 20 KT. SEAS 4 TO 9 FT.

$$

PKZ352-261445-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
345 PM AKDT FRI APR 25 2014

...GALE WARNING TONIGHT...

.TONIGHT...SE WIND 25 TO 40 KT DIMINISHING TO 15 TO 30 KT AFTER
MIDNIGHT. SEAS 12 TO 18 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 14 FT. RAIN.
.SAT NIGHT...SE WIND 15 KT. SEAS 15 FT. RAIN.
.SUN...SE WIND 10 TO 20 KT. SEAS 12 TO 16 FT.
.SUN NIGHT...SE WIND 10 TO 20 KT. SEAS 10 TO 13 FT.
.MON THROUGH WED...E WIND 10 TO 20 KT. SEAS 5 TO 10 FT.

$$

948 
FZAK61 PAFC 261111
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
311 AM AKDT SAT APR 26 2014

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-270130-
311 AM AKDT SAT APR 26 2014
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 978 MB LOW NEAR 55N 157W WILL MOVE TO 53N 153W AT 994 MB EARLY
MON MORNING. THE ASSOCIATED FRONTAL SYSTEM OVER THE NORTHERN GULF
WILL TRACK NORTHWARD AND DISSIPATE BY SUN AFTERNOON.

$$

PKZ351-270130-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
311 AM AKDT SAT APR 26 2014

...GALE WARNING TODAY...

.TODAY...E WIND 25 TO 40 KT. SEAS 13 TO 18 FT. RAIN.
.TONIGHT...SE WIND 15 TO 25 KT. SEAS 14 FT. RAIN.
.SUN...SE WIND 20 KT. SEAS 13 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 9 TO 13 FT.
.MON...E WIND 10 TO 20 KT. SEAS 6 TO 10 FT.
.TUE THROUGH WED...NE WIND 15 KT. SEAS 3 TO 7 FT.

$$

PKZ352-270130-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
311 AM AKDT SAT APR 26 2014

.TODAY...SE WIND 15 KT. SEAS 11 TO 17 FT. RAIN.
.TONIGHT...SE WIND 15 KT. SEAS 15 FT. RAIN.
.SUN...SE WIND 15 KT. SEAS 13 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 11 FT.
.MON...E WIND 15 KT. SEAS 6 TO 11 FT.
.TUE THROUGH WED...NE WIND UP TO 15 KT. SEAS 3 TO 7 FT.

$$

809 
FZAK61 PAFC 262320
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
320 PM AKDT SAT APR 26 2014

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-271415-
320 PM AKDT SAT APR 26 2014
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 981 MB LOW NEAR 55N 156W WILL STEADILY WEAKEN TO 1001 MB NEAR
51N 152W MON AFTERNOON. A WEATHER FRONT STALLED ALONG THE NORTH
GULF COAST WILL WEAKEN IN PLACE AND DISSIPATE SUN EVENING.

$$

PKZ351-271415-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
320 PM AKDT SAT APR 26 2014

.TONIGHT...SE WIND 15 TO 25 KT. SEAS 14 FT. RAIN.
.SUN...SE WIND 10 TO 20 KT. SEAS 10 TO 13 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 8 TO 12 FT.
.MON...E WIND 15 KT. SEAS 6 TO 10 FT.
.MON NIGHT...E WIND 10 TO 20 KT. SEAS 6 FT.
.TUE THROUGH THU...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

PKZ352-271415-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
320 PM AKDT SAT APR 26 2014

.TONIGHT...S WIND 10 TO 15 KT. SEAS 15 FT. RAIN.
.SUN...S WIND 15 KT. SEAS 11 TO 14 FT. RAIN.
.SUN NIGHT...SE WIND 15 KT. SEAS 10 TO 13 FT. RAIN.
.MON...SE WIND 15 KT. SEAS 7 TO 10 FT.
.MON NIGHT...E WIND 15 KT. SEAS 5 TO 8 FT.
.TUE THROUGH THU...NE WIND 15 KT. SEAS 3 TO 8 FT.

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
526 AM AKDT THU APR 24 2014

.ANALYSIS AND UPPER LEVELS...
RELATIVELY QUIET CONDITIONS PREVAIL ACROSS THE SOUTHERN MAINLAND
THIS MORNING AS A WEAK UPPER TROUGH TRACKS WESTWARD TOWARDS THE
LOWER KUSKOKWIM VALLEY...SPREADING SCATTERED MID LEVEL CLOUDINESS
OVER MUCH OF THE REGION. A WEAK SURFACE TROUGH/DECAYING FRONTAL
BOUNDARY OVER THE WESTERN GULF CONTINUES TO BRING RAIN SHOWERS TO
KODIAK ISLAND. A BROAD UPPER LEVEL TROUGH ENCOMPASSES MOST OF THE
BERING SEA...WITH A NEW NORTH PACIFIC LOW POISED TO BECOME THE
DOMINANT FEATURE TODAY AS IT TRACKS TOWARDS THE CENTRAL ALEUTIANS
FROM THE SOUTHWEST AND ABSORBS THE PREVIOUS LOW CENTER WHICH HAD
BEEN IN PLACE OVER THE SOUTHERN BERING. THIS IS KEEPING ABUNDANT
LOW CLOUDS AND SCATTERED SHOWERS OVER MUCH OF THE BERING.

&&

.MODEL DISCUSSION...
MODELS REMAIN IN GOOD SYNOPTIC AGREEMENT IN THE SHORT TERM.
GUIDANCE HAS TRENDED FURTHER NORTH WITH THE NEXT EASTERLY WAVE
MOVING OUT OF THE YUKON TERRITORY THIS AFTERNOON...WHICH SHOULD KEEP
THE BULK OF THE ASSOCIATED SHOWER ACTIVITY NORTH OF THE COPPER
RIVER BASIN. MEANWHILE...THE NORTH PACIFIC LOW WILL TRACK ALONG
THE ALEUTIAN CHAIN AND ALASKA PENINSULA THROUGH THE REMAINDER OF
THE WEEK BEFORE STALLING AND GRADUALLY WEAKENING SOUTH OF KODIAK
ISLAND DURING THE WEEKEND AS ANOTHER STRONGER FRONT MOVES THROUGH
THE GULF FRIDAY INTO SATURDAY. GENERALLY CONTINUED TO UTILIZE A
GFS/EC BLEND FOR THE FORECAST WITH SOME NAM INCLUDED EARLY ON FOR
ITS ENHANCED DETAIL.

&&

.SHORT TERM FORECAST...
SOUTHCENTRAL ALASKA...
A FEW SHOWERS WILL REMAIN POSSIBLE THIS AFTERNOON OVER THE COPPER
RIVER BASIN AS THE NEXT EASTERLY WAVE PASSES TO THE NORTH...WITH
THE BEST CHANCE OVER THE ALASKA RANGE AND THE WRANGELL MOUNTAINS.
OTHERWISE...THE REST OF THE AREA SHOULD REMAIN DRY TODAY WITH THE
EXCEPTION OF THE KENAI PENINSULA...WHERE A FEW GLANCING SHOWERS
WILL ALSO BE POSSIBLE AS ANOTHER WAVE ROTATES THROUGH THE
NORTHWESTERN GULF AND INTO THE SOUTHWEST MAINLAND. THIS WAVE WILL
ALSO SERVE TO ENHANCE GAP FLOWS THROUGH TURNAGAIN ARM AND THE KNIK
RIVER VALLEY. ENHANCED ONSHORE FLOW WILL BRING SHOWERS TO THE GULF
COAST TONIGHT...WITH ANOTHER SHOT OF PRECIPITATION IN STORE THIS
WEEKEND AS THE NEXT FRONT TRACKS THROUGH THE GULF.

SOUTHWEST ALASKA...
A WEAK WAVE MOVING ACROSS THE AREA WILL TRIGGER A FEW AFTERNOON
AND EVENING SHOWERS TODAY. MORE WIDESPREAD SHOWERS WILL ARRIVE
FRI AS THE FRONT ASSOCIATED WITH THE ALEUTIAN LOW MOVES OVER THE
REGION. PRECIPITATION WILL DIMINISH OVER THE KUSKOKWIM VALLEY AND
DELTA FRI NIGHT...BUT WILL PERSIST OVER THE BRISTOL BAY AREA
THROUGH SUN AS THE LOW SLIDES EAST.

BERING SEA/ALEUTIANS...
THE CONSOLIDATION OF THE BERING TROUGH AND THE NORTH PACIFIC LOW
TODAY WILL BRING RAIN AND SNOW SHOWERS TO THE WESTERN ALEUTIANS
THAT PERSIST INTO SAT. HIGH PRESSURE WILL THEN BUILD IN FROM THE
WEST AND END SHOWERS OVER THE WEST BY SUN. WHILE THIS IS HAPPENING
AN ASSOCIATED FRONT WILL BRING STEADY RAIN TO THE CENTRAL AND THEN
EASTERN ALEUTIANS THROUGH TONIGHT...BEFORE CHANGING TO RAIN AND
SNOW SHOWERS ON THE WESTERN FLANK OF THE LOW THAT PERSIST THROUGH
THE WEEKEND.

&&

.LONG TERM FORECAST...
EXTENDED MODELS ARE BEGINNING TO TREND IN THE DIRECTION OF THE EC.
THE KAMCHATKA LOW THAT HAD BEEN FEATURED THE LAST SEVERAL DAYS IS
NO MORE...SINCE IT WILL RAPIDLY CURVE AND HEAD FOR EASTERN RUSSIA
SUN AND MON...WITH ONLY A WEAK FRONT ENTERING THE BERING.
INSTEAD...WEAK HIGH PRESSURE WILL REMAIN OVER THE BERING UNTIL A
NORTH PACIFIC LOW REACHES THE WESTERN ALEUTIANS TUE AND THEN
MOVES INTO THE BERING WHERE IT STALLS FOR SEVERAL DAYS. IN THE
EAST...HIGH PRESSURE BUILDS IN AS THE LOW SOUTH OF THE AKPEN
WEAKENS OVER THE SOUTHERN GULF. BY MIDWEEK A LOW BEGINS HEADING TO
KODIAK ISLAND AND THE AKPEN.

THESE FEATURES WILL BRING SOME SHOWERS TO THE BERING EARLY NEXT
WEEK...AND THEN SIGNIFICANT RAIN AND WIND THROUGH THE END OF THE
WEEK. IN THE EAST...EXCEPT FOR RAIN EARLY OVER KODIAK
ISLAND...SOME AFTERNOON AND EVENING SHOWERS CAN BE EXPECTED
THROUGH MIDWEEK OVER THE INTERIOR.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE
MARINE...GALE 132 150 155 170 172 173 174 175 176
FIRE WEATHER...NONE

&&

CB/DS APR 14