Gale Warning 354, NWS Anchorage, AK

374 
FZAK61 PAFC 242300
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
300 PM AKDT THU APR 24 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.

PKZ399-251345-
300 PM AKDT THU APR 24 2014
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 977 MB LOW AT 57N 175W WILL BE A 983 MB LOW AT 55N 151W SAT
NIGHT. THE FRONT ASSOCIATED WITH THIS LOW WILL EXTEND INTO THE
SOUTHERN GULF FRI MORNING AND THEN MOVE TO THE EASTERN GULF BY
SAT NIGHT.

$$

PKZ351-251345-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
300 PM AKDT THU APR 24 2014

...GALE WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...S WIND 10 TO 20 KT. SEAS 6 FT.
.FRI...SE WIND 15 TO 30 KT INCREASING TO 25 TO 35 KT IN THE
AFTERNOON. SEAS 6 TO 11 FT.
.FRI NIGHT...E WIND 30 TO 40 KT. SEAS 10 TO 17 FT. RAIN.
.SAT...E WIND 25 TO 40 KT. SEAS 13 TO 17 FT.
.SAT NIGHT...SE WIND 15 TO 25 KT. SEAS 14 FT.
.SUN THROUGH MON...NE WIND 20 KT. SEAS 9 TO 14 FT.
.TUE...NE WIND 15 KT. SEAS 6 FT.

$$

PKZ352-251345-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
300 PM AKDT THU APR 24 2014

...GALE WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...S WIND 10 TO 20 KT. SEAS 9 FT. RAIN.
.FRI...SE WIND 25 TO 40 KT. SEAS 8 TO 16 FT. RAIN.
.FRI NIGHT...SE WIND 25 TO 40 KT. SEAS 11 TO 16 FT. RAIN.
.SAT...SE WIND UP TO 20 KT. SEAS 11 TO 15 FT.
.SAT NIGHT...SE WIND 15 KT. SEAS 15 FT.
.SUN...SE WIND 20 KT. SEAS 9 TO 16 FT.
.MON THROUGH TUE...NE WIND 20 KT. SEAS 5 TO 10 FT.

$$

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.

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
153 PM AKDT WED APR 23 2014

.ANALYSIS AND UPPER LEVELS...THE UPPER LEVEL HIGH THAT HAS BEEN
OVER THE STATE HAS BEGUN TO PUSH NORTHWESTWARD AS AN UPPER LEVEL
LOW HAS MOVED INTO THE NORTHERN GULF OF ALASKA. THIS IS PRODUCING
EASTERLY FLOW OVER SOUTHWEST AND SOUTHCENTRAL ALASKA TODAY. THERE
ARE A COUPLE OF EASTERLY WAVES...UPPER LEVEL DISTURBANCES MOVING
FROM EAST TO WEST...THAT ARE EMBEDDED IN THIS FLOW. THESE WAVES
HAVE CAUSED SOME OF THE INCREASED CLOUD COVER AND RAIN SHOWERS.
THE JET STREAM IS RUNNING JUST SOUTH OF THE ALEUTIAN ISLANDS AND
IS PROVIDING THE SOURCE FOR A STRENGTHENING LOW SOUTH OF THE
WESTERN ALEUTIANS. THIS WILL CAUSE THE LOW THERE TO RAPIDLY
STRENGTHEN AND ABSORB THE WEAKENING LOW IN THE CENTRAL BERING SEA
TOMORROW AS THAT LOW DOES NOT HAVE ANY UPPER LEVEL SUPPORT.

&&

.MODEL DISCUSSION...MODELS ARE IN GOOD SYNOPTIC AGREEMENT THROUGH
THE REMAINDER OF THE WEEK. ONE ITEM THEY ALL SEEM TO BE CATCHING
UP ON IS THE SPEED AT WHICH THE FIRST EASTERLY WAVE THAT MOVED
THROUGH SOUTHCENTRAL ALASKA TRAVELED THIS MORNING. THIS WAVE HAS
CROSSED THE ALASKA RANGE THIS AFTERNOON AND IS MOVING FASTER THAN
ANTICIPATED BY PREVIOUS MODEL RUNS. THE SECOND EASTERLY WAVE IS
OVER NORTHERN PRINCE WILLIAM SOUND EARLY THIS AFTERNOON AND HEADED
TO THE WEST. THE MODELS MAY HAVE TRIED TO MIX THESE WAVES INTO ONE
PREVIOUSLY AS NEITHER IS VERY STRONG.

THE MODELS DO DIVERGE A BIT STARING EARLY NEXT WEEK BUT THERE
STILL LOOKS TO BE A GENERAL PATTERN EMERGING THAT WE CAN WORK
WITH.
&&

.SHORT TERM FORECAST...
SOUTHCENTRAL ALASKA...THE ATMOSPHERE IS SOMEWHAT UNSTABLE THIS
AFTERNOON WITH RAIN SHOWERS BEING PRODUCED AS THE EASTERLY WAVES
MOVE THROUGH THE AREA. THE PRECIPITATION HAS NOT BEEN AS
WIDESPREAD AS RADAR INDICATES HOWEVER AS THE LOWER ATMOSPHERE
REMAINS FAIRLY DRY CAUSING A GOOD AMOUNT OF THE SHOWERS TO
EVAPORATE INTO VIRGA.
A FRONT IN THE SOUTHWEST GULF OF ALASKA IS PUMPING A BIT OF
MOISTURE INTO THE SOUTHERN HALF KODIAK ISLAND. THE NORTHERN
PORTION INCLUDING THE CITY OF KODIAK IS OUT OF THE MAIN PUSH OF
MOISTURE BUT WILL SEE SOME SHOWERS AS WELL. THERE IS A CHANCE THEY
BECOME MORE WIDESPREAD OVER THE ISLAND THIS EVENING AS THE LATEST
SATELLITE LOOPS INDICATE A LOW THAT DEVELOPED ALONG THIS FRONT IS
EDGING TO THE NORTHWEST.

SOUTHWEST ALASKA...THERE IS SOME INCREASING CLOUDS IN CONJUNCTION
WITH AN EASTERLY WAVE IN THE UPPER KUSKOKWIM VALLEY AND ANOTHER
REGION OF CLOUDS SOUTH OF KING SALMON. IN BETWEEN THERE ARE SOME
SHOWERS DEVELOPING OVER ELEVATED TERRAIN AS THE DAYTIME HEATING
PROVIDES LOW LEVEL LIFT.

BERING SEA/ALEUTIANS...THE LOW IN THE CENTRAL BERING SEA IS
WEAKENING BUT IS STILL IMPACTING THE WEATHER THERE. THE
EASTERN BERING SEA HAS SOME CLOUDS NEAR THE LOW AND ALONG A
DISSIPATING FRONT BUT ALSO HAS A LARGE AREA OF SUNNY SKIES AS
WELL. RAIN SHOWERS PERSIST IN THE WESTERN ALEUTIANS IN THE
NORTHWEST FLOW THERE.
&&

.LONG TERM FORECAST...
THE LOW THAT MOVES INTO THE SOUTHWESTERN GULF FRIDAY NIGHT WILL
REMAIN NEARLY STATIONARY AND SLOWLY WEAKEN THROUGH THE WEEKEND.
THERE IS SOME UNCERTAINTY ADDED TO THE FORECAST AFTER THIS LOW
DISSIPATES AS THE MODELS ARE STRUGGLING TO COME TO A COMMON
SOLUTION AS TO WHAT HAPPENS NEXT. AT THIS TIME THE MOST LIKELY
SCENARIO INVOLVES THE LOW TRACK TO MOVE INTO THE BERING SEA WITH
SOME SEMBLANCE OF HIGH PRESSURE OVER SOUTHERN AND SOUTHWEST
ALASKA...WHICH BUILDS NORTHWARD INTO THE EASTERN INTERIOR PART OF
THE STATE BY THE MIDDLE OF NEXT WEEK.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE
MARINE...GALE WARNING 150 155 165 170 172 173 174 176
FIRE WEATHER...NONE

&&