Gale Warning 412, NWS Anchorage, AK

000 
FZAK61 PAFC 131136
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM ADT TUE MAY 13 2008

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.

PKZ399-140200-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 968 MB NORTH PACIFIC LOW WILL INTENSIFY TO 961 MB AS IT MOVES 
TO 51N 153W TUE NIGHT. THE LOW WILL THEN WEAKEN TO 981 MB AS IT 
MOVES TO 58N 149W WED NIGHT.
$$

PKZ351-140200-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM ADT TUE MAY 13 2008

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...S WIND 20 KT. SEAS 16 FT. 
.TONIGHT...E WIND 25 KT INCREASING TO 40 KT AFTER MIDNIGHT. 
SEAS 16 FT. RAIN.
.WED...SE WIND 35 KT. SEAS 21 FT. RAIN.
.WED NIGHT...S WIND 40 KT. SEAS 25 FT. 
.THU...SW WIND 35 KT. SEAS 24 FT. 
.FRI...SE WIND 20 KT. SEAS 17 FT. 
.SAT...NW WIND 20 KT. SEAS 8 FT.  

$$

PKZ352-140200-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W
400 AM ADT TUE MAY 13 2008

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...S TO SE WIND 15 TO 25 KT. SEAS 16 FT. 
.TONIGHT...E WIND 30 KT INCREASING TO 45 KT AFTER MIDNIGHT. 
SEAS 16 FT. RAIN.
.WED...SE WIND 30 TO 40 KT. SEAS 24 FT. RAIN.
.WED NIGHT...S WIND 40 KT. SEAS 27 FT. 
.THU...SW WIND 35 KT. SEAS 23 FT. 
.FRI...SE WIND 20 KT. SEAS 15 FT. 
.SAT...N WIND 25 KT. SEAS 9 FT.  

$$

000 
FZAK61 PAFC 132355
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM ADT TUE MAY 13 2008

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.

PKZ399-141400-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 964 MB LOW AT 47N 156W WILL BE A 970 MB LOW AT 57N 150W WED THEN
MOVE ONSHORE NEAR 60N 151W THU MORNING. HIGH PRESSURE WILL BUILD INTO
THE EASTERN GULF BEHIND THIS LOW THU. 
$$

PKZ351-141400-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM ADT TUE MAY 13 2008

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...E WIND 15 TO 30 KT INCREASING TO 45 KT AFTER MIDNIGHT.
GUSTS TO 55 KT AFTER MIDNIGHT. SEAS 10 FT BUILDING TO 17 FT. RAIN.
.WED...SE WIND 35 KT. SEAS 21 FT. RAIN SHOWERS. 
.WED NIGHT...S WIND 25 TO 40 KT. SEAS 25 FT. RAIN SHOWERS. 
.THU...SW WIND 35 KT. SEAS 18 FT. 
.THU NIGHT...SW WIND 25 KT. SEAS 15 FT. 
.FRI...SE WIND 15 KT. SEAS 12 FT. 
.SAT...NW WIND 20 KT. SEAS 8 FT.
.SUN...W WIND 25 KT. SEAS 8 FT.  

$$

PKZ352-141400-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM ADT TUE MAY 13 2008

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...E WIND 20 TO 35 KT INCREASING TO 45 KT BY MIDNIGHT. SEAS
13 FT BUILDING TO 18 FT. RAIN.
.WED...SE WIND 25 TO 40 KT. SEAS 24 FT. RAIN SHOWERS. 
.WED NIGHT...S WIND 25 TO 40 KT. SEAS 27 FT. 
.THU...SW WIND 35 KT. SEAS 18 FT. 
.THU NIGHT...S WIND 20 KT. SEAS 14 FT. 
.FRI...E WIND 20 KT. SEAS 10 FT. 
.SAT...N WIND 25 KT. SEAS 9 FT. 
.SUN...W WIND 25 KT. SEAS 8 FT.  

$$

000 
FZAK61 PAFC 141117
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM ADT WED MAY 14 2008

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.

PKZ399-150200-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...A 960 MB LOW NEAR 51N 153W
WILL WEAKEN TO 977 MB NEAR 60N 150W THU MORNING BEFORE MOVING
ONSHORE. HIGH PRESSURE WILL BUILD IN THE EASTERN GULF THROUGH THU
NIGHT.

$$

PKZ351-150200-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM ADT WED MAY 14 2008

...STORM WARNING TODAY...

.TODAY...E WIND 55 KT BECOMING SE WIND 45 KT BY NOON. SEAS BUILDING
TO 22 FT. RAIN SHOWERS. 
.TONIGHT...S WIND 40 KT. SEAS 25 FT. 
.THU...SW WIND 30 KT. SEAS 24 FT. 
.THU NIGHT...SW WIND 20 KT. SEAS 17 FT. 
.FRI...W WIND 15 KT. SEAS 12 FT. 
.SAT...W WIND 20 KT. SEAS 7 FT. 
.SUN...W WIND 15 KT. SEAS 7 FT.  

$$

PKZ352-150200-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM ADT WED MAY 14 2008

...STORM WARNING TODAY...

.TODAY...SE WIND 55 KT DIMINISHING TO 45 THIS MORNING. SEAS BUILDING
TO 25 FT.  
.TONIGHT...SW WIND 40 KT. SEAS 27 FT. 
.THU...SW WIND 30 KT. SEAS 22 FT. 
.THU NIGHT...S WIND 15 KT. SEAS 16 FT. 
.FRI...SE WIND 20 KT. SEAS 11 FT. 
.SAT...S WIND 20 KT. SEAS 8 FT. 
.SUN...W WIND 20 KT. SEAS 7 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
505 AM ADT MON MAY 12 2008

.MODEL DISCUSSION...
MODELS IN VERY GOOD AGREEMENT ALLOWING FOR ONLY MINOR EDITS TO
INHERITED FORECAST. GFS WAS USED AS THE OVERALL SOLUTION AGAIN FOR
ITS GOOD RUN TO RUN CONSISTENCY.

.ANALYSIS AND UPPER LEVELS...
LARGE TROUGH OVER THE ENTIRE BERING AND ALEUTIANS AND INTO WESTERN
ALASKA WITH A CLOSED STACKED LOW OVER THE AK PENN. UPPER RIDGE TRIES
TO HOLD ON OVER THE WESTERN COAST OF NORTH AMERICA. AT THE
SURFACE...A STRONG OCCLUDED FRONT IS NEARING THE NORTH GULF COAST
FROM THE AK PENN LOW. THE FRONT IS PUSHING AGAINST THE SURFACE
REFLECTED WEST COAST RIDGE THAT EXTENDS ALONG THE NORTH GULF COAST.
THE PRESSURE GRADIENT IS PRODUCING STORM FORCE WINDS IN THE NORTHERN
COASTAL WATERS AND VERY STRONG WINDS OVER LAND INCLUDING HIGH WIND
WARNING CRITERIA THROUGH EASTERN TURNAGAIN ARM. THE FRONTAL
PRECIPITATION IS FALLING IN A DOWNSLOPE PATTERN ACROSS SOUTHERN
SOUTHCENTRAL DUE TO THE SOUTHEASTERLY FLOW. SHOWERS ARE SPREAD ACROSS
SOUTHWEST AK AS THE MOISTURE IS WRUNG OUT FROM THE ALASKA RANGE AND
OVER THE BERING IN THE NORTHWESTERLY FLOW.

.SHORT TERM FORECAST...
EAST AND SOUTH OF THE ALASKA RANGE...CLOUD COVER WILL STRETCH ACROSS
SOUTHCENTRAL TO DECREASE THE PREVIOUS FIRE WEATHER THREAT. THE
FRONTAL PRECIPITATION WILL STAY CONFINED MAINLY TO THE COASTAL ZONES
AS THE RIDGING TRIES TO HOLD ON THE THE NORTH GULF COAST.
SOUTHEASTERLY FLOW WILL KEEP THE PRECIPITATION IN A DOWNSLOPE PATTERN
UNTIL EARLY TUESDAY MORNING WHEN WINDS TURN MORE SOUTHERLY. SHOWERS
WILL THEN STICK AROUND THROUGH WEDNESDAY AS AN UPPER TROUGH SLOWLY
PASSES OVERHEAD. THE NEXT NORTH PACIFIC LOW WILL PUSH A FRONTAL BAND
TOWARD THE NORTH GULF COAST WEDNESDAY AFTERNOON FOR ANOTHER ROUND OF
WIND AND RAIN FOR SOUTHCENTRAL.

SW MAINLAND...STRONG GAP WINDS WILL CONTINUE TODAY THEN WEAKEN
TUESDAY AS THE AK PENN LOW WEAKENS AND MOVES TO THE WEST. EXPECT
SHOWERS TO STAY AROUND UNDER THE UPPER TROUGH. WEDNESDAY WILL SEE AN
INCREASE IN THE CHANCE FOR RAIN FOR BRISTOL BAY AS FLOW TURNS FROM
THE SOUTHEAST TO THE SOUTH.

BERING AND ALEUTIANS...SHOWERY WEATHER WILL CONTINUE AS THE LARGE
UPPER TROUGH HOLDS OVER THE AREA THROUGH MIDWEEK.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND WARNING 125
MARINE...STORM 120
      ...GALE 125 130 132 138 140 155 170 175 176
FIRE WEATHER...NONE

LR MAY 08