Gale Warning 20, NWS Anchorage, AK

048 
FZAK61 PAFC 191248
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST THU JAN 19 2012

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.

PKZ399-200300-
400 AM AKST THU JAN 19 2012
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
HIGH PRESSURE WILL CONTINUE OVER THE NORTHERN GULF OF ALASKA. A 964
MB LOW WILL MOVE TO 52N 146W FRI MORNING AND TO 53N 140W AT 956 MB
EARLY SAT MORNING.
$$

PKZ351-200300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST THU JAN 19 2012

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...E WIND 15 TO 25 KT. SEAS 6 TO 10 FT. FREEZING SPRAY. 
.TONIGHT...E WIND 40 KT. SEAS 14 FT. FREEZING SPRAY. 
.FRI...NE WIND 40 KT. SEAS 14 FT. FREEZING SPRAY. 
.FRI NIGHT...N WIND 35 KT. SEAS 14 FT. 
.SAT...W WIND 20 KT. SEAS 11 FT. 
.SUN...S WIND 25 KT. SEAS 11 FT. 
.MON...SE WIND 25 KT. SEAS 13 FT.  

$$

PKZ352-200300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST THU JAN 19 2012

...GALE WARNING THROUGH FRIDAY...

.TODAY...E WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS 8 FT
BUILDING TO 14 FT IN THE AFTERNOON. 
.TONIGHT...NE WIND 45 KT. SEAS 18 FT. 
.FRI...NE WIND 45 KT. SEAS 20 FT. 
.FRI NIGHT...N WIND 35 KT. SEAS 18 FT. 
.SAT...W WIND 30 KT. SEAS 13 FT. 
.SUN...SW WIND 25 KT. SEAS 12 FT. 
.MON...SW WIND 20 KT. SEAS 11 FT.  
$$

752 
FZAK61 PAFC 200017
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST THU JAN 19 2012

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.

PKZ399-201500-
400 PM AKST THU JAN 19 2012
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 964 MB PACIFIC LOW NEAR 51N 148W WILL MOVE TO 55N 134W
SAT AFTERNOON. A 970 MB LOW WILL FORM NEAR 58N 148W ON SAT.

$$

PKZ351-201500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST THU JAN 19 2012

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...NE WIND 40 KT. SEAS 15 FT. SNOW. FREEZING SPRAY. 
.FRI...NE WIND 30 TO 40 KT. SEAS 19 FT. 
.FRI NIGHT...N WIND 35 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. SEAS
17 FT. 
.SAT...NW WIND 20 KT. SEAS 12 FT. 
.SAT NIGHT...S WIND 25 KT. SEAS 9 FT. 
.SUN...S WIND 25 KT. SEAS 11 FT. 
.MON...SE WIND 25 KT. SEAS 13 FT. 
.TUE...E WIND 30 KT. SEAS 9 FT.  

$$

PKZ352-201500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST THU JAN 19 2012

...STORM WARNING THROUGH FRIDAY...

.TONIGHT...NE WIND 40 TO 50 KT. SEAS BUILDING TO 22 FT. SNOW AND
RAIN. 
.FRI...NE WIND 40 TO 50 KT. SEAS 25 FT. SNOW AND RAIN. 
.FRI NIGHT...N WIND 45 KT. SEAS 22 FT. SNOW AND RAIN. 
.SAT...W WIND 30 KT. SEAS 14 FT. 
.SAT NIGHT...W WIND 25 KT. SEAS 12 FT. 
.SUN...SW WIND 25 KT. SEAS 11 FT. 
.MON...SW WIND 20 KT. SEAS 11 FT. 
.TUE...SW WIND 30 KT. SEAS 10 FT.  

$$

977 
FZAK61 PAFC 201234
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST FRI JAN 20 2012

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.

PKZ399-210300-
400 AM AKST FRI JAN 20 2012
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 959 MB LOW AT 53N 145W WILL MOVE TO 55N 137W LATE SAT MORNING AT
962 MB THEN TO 57N 150W AT 968 MB LATE SAT NIGHT. 
$$

PKZ351-210300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST FRI JAN 20 2012

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE WIND 40 KT. SEAS 20 FT. 
.TONIGHT...N WIND 35 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. SEAS
17 FT. SNOW.
.SAT...NW WIND 20 KT. SEAS 12 FT. 
.SAT NIGHT THROUGH MON...S WIND 25 KT. SEAS 10 FT.
.TUE...W WIND 35 KT. SEAS 13 FT.  

$$

PKZ352-210300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST FRI JAN 20 2012

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE WIND 45 KT. SEAS 25 FT. SNOW.
.TONIGHT...N WIND 40 KT. SEAS 21 FT. SNOW.
.SAT...NW WIND 30 KT. SEAS 14 FT. SNOW.
.SAT NIGHT...W WIND 25 KT. SEAS 12 FT. 
.SUN AND MON...SW WIND 25 KT. SEAS 11 FT. 
.TUE...W WIND 30 KT. SEAS 13 FT.  
$$

118 
FZAK61 PAFC 201520 AAA
OFFAER

OFFSHORE WATERS FORECAST...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
620 AM AKST FRI JAN 20 2012

UPDATED ZONE 352

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.

PKZ399-210300-
400 AM AKST FRI JAN 20 2012
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 959 MB LOW AT 53N 145W WILL MOVE TO 55N 137W LATE SAT MORNING AT
962 MB THEN TO 57N 150W AT 968 MB LATE SAT NIGHT. 
$$

PKZ351-210300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST FRI JAN 20 2012

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE WIND 40 KT. SEAS 20 FT. 
.TONIGHT...N WIND 35 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. 
SEAS 17 FT. SNOW.
.SAT...NW WIND 20 KT. SEAS 12 FT. 
.SAT NIGHT THROUGH MON...S WIND 25 KT. SEAS 10 FT.
.TUE...W WIND 35 KT. SEAS 13 FT.  

$$

PKZ352-210300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
620 AM AKST FRI JAN 20 2012

...STORM WARNING THROUGH TONIGHT...

.TODAY...NE WIND 45 TO 55 KT. SEAS 28 FT. SNOW.
.TONIGHT...N WIND 40 TO 50 KT DIMINISHING TO NW 30 TO 40 KT 
AFTER MIDNIGHT. SEAS 22 FT. SNOW.
.SAT...W WIND 30 KT. SEAS 14 FT. SNOW.
.SAT NIGHT...W WIND 25 KT. SEAS 12 FT. 
.SUN AND MON...SW WIND 25 KT. SEAS 11 FT. 
.TUE...W WIND 30 KT. SEAS 13 FT.  
$$

310 
FZAK61 PAFC 210043
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST FRI JAN 20 2012

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.

PKZ399-211500-
400 PM AKST FRI JAN 20 2012
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 954 MB LOW AT 54N 144W WILL MOVE TO 57N 137W SATURDAY EVENING AT
969 MB AND THEN DISSIPATE. LATE SATURDAY NIGHT...A 969 MB LOW WILL
DEVELOP NEAR 58N 148W AND WILL DRIFT TO 58N 151W AT 972 MB SUNDAY
AFTERNOON.

$$

PKZ351-211500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST FRI JAN 20 2012

...GALE WARNING TONIGHT...

.TONIGHT...N WIND 35 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. SEAS
15 TO 21 FT. SNOW.
.SAT...NW WIND 20 KT. SEAS 15 FT. SNOW.
.SAT NIGHT...VARIABLE WIND 15 KT BECOMING S 25 KT AFTER MIDNIGHT.
SEAS 10 FT. SNOW.
.SUN...S WIND 25 KT. SEAS 12 FT. 
.SUN NIGHT...S WIND 25 KT. SEAS 11 FT. 
.MON...S WIND 25 KT. SEAS 9 FT. 
.TUE...W WIND 35 KT. SEAS 9 FT. 
.WED...W WIND 35 KT. SEAS 12 FT.  

$$

PKZ352-211500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST FRI JAN 20 2012

...STORM WARNING TONIGHT...

.TONIGHT...N WIND 35 TO 50 KT BECOMING NW 25 TO 35 KT AFTER MIDNIGHT.
SEAS 22 TO 27 FT. SNOW AND RAIN. 
.SAT...NW WIND 30 KT. SEAS 16 FT. SNOW.
.SAT NIGHT...W WIND 25 KT. SEAS 13 FT. SNOW.
.SUN...SW WIND 25 KT. SEAS 14 FT. 
.SUN NIGHT AND MON...SW WIND 25 KT. SEAS 11 FT. 
.TUE...W WIND 30 KT. SEAS 11 FT. 
.WED...W WIND 35 KT. SEAS 17 FT.  

$$

146 
FZAK61 PAFC 211224
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST SAT JAN 21 2012

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.

PKZ399-220300-
400 AM AKST SAT JAN 21 2012
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 956 MB LOW AT 55N 141W WILL MOVE TO 58N 140W THIS EVENING AT 968 
MB THEN DISSIPATE. A 967 MB LOW WILL DEVELOP NEAR 58N 148W THIS
EVENING AND MOVE TO 55N 152W AT 978 MB BY LATE SUN NIGHT. A 977 MB
LOW WILL DEVELOP NEAR 56N 145W LATE SUN NIGHT. 
$$

PKZ351-220300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST SAT JAN 21 2012

.TODAY...N WIND 15 TO 25 KT. SEAS 15 FT. SNOW.
.TONIGHT AND SUN...SW WIND 25 KT. SEAS 11 FT. SNOW. FREEZING SPRAY.
.SUN NIGHT AND MON...S WIND 25 KT. SEAS 10 FT. 
.TUE AND WED...W WIND 30 KT. SEAS 15 FT. 

$$

PKZ352-220300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST SAT JAN 21 2012

...GALE WARNING TODAY...

.TODAY...NW WIND 35 KT. SEAS 16 TO 22 FT. SNOW.
.TONIGHT AND SUN...SW WIND 30 KT. SEAS 13 TO 18 FT. FREEZING SPRAY. 
.SUN NIGHT AND MON...SW WIND 20 KT. SEAS 10 FT. 
.TUE AND WED...W WIND 35 KT. SEAS 17 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
200 PM AKST WED JAN 18 2012

.MODEL DISCUSSION...MODELS GENERALLY INITIALIZED WELL ON SYNOPTIC
FEATURES. THE NAM AND ECMWF FORECAST TRENDS LOOK THE BEST IN THE
SHORT TERM AND WILL BE USED WITH SOME ADJUSTMENTS FOR THIS FORECAST
ISSUANCE.

.UPPER LEVELS....UPPER LEVELS...THE LARGE BLOCKING HIGH OVER THE
EASTERN BERING SEA ON TUE HAS MOVED TO OVER EASTERN RUSSIA. A BROAD
TROUGH EXTENDS FROM SE ALASKA TO SOUTH OF THE EASTERN ALEUTIANS. THE
HIGH OVER EASTERN RUSSIA WILL REMAIN STATIONARY WITH LITTLE CHANGE IN
INTENSITY THROUGH SAT AFTERNOON. A LOW MOVING SOUTH ACROSS THE
BEAUFORT SEA FRI MOVES TO OVER SOUTHCENTRAL ALASKA SAT.

.SHORT TERM FORECAST...
.SOUTHCENTRAL...THE HIGH PRESSURE RIDGE OVER THE MAINLAND HAS
WEAKENED SOME OVER THE LAST 24 HRS. GAP FLOWS ACROSS THE NORTH GULF
AND THE MATANUSKA VALLEY HAVE DECREASED WITH WEAKENING PRESSURE
GRADIENTS AND LESS FAVORABLE FLOW ALOFT. PRESSURE GRADIENTS WILL
CONTINUE TO WEAKEN ACROSS THE AREA TONIGHT AND THU. PRESSURE
GRADIENTS AND SUPPORTING NE FLOW ALOFT WILL INCREASE LATE THU NIGHT
AND FRI AND CONTINUE INTO SAT...SO BRISK GAP FLOWS SHOULD REDEVELOP
ALONG THE NORTH GULF AND THE MATANUSKA VALLEY. PRESSURE GRADIENTS
ACROSS MUCH OF THE AREA WILL INCREASE ON SAT AS LOW PRESSURE MOVES
INTO THE NORTHERN GULF. EXPECT INCREASING CLOUDS AND CHANCES OF SNOW
THIS WEEKEND. INCREASING CLOUDS WILL HELP TEMPERATURES REBOUND A
LITTLE...ESPECIALLY ALONG THE COASTS...HOWEVER...850 MB TEMPS COOL
OVER THE REMAINDER OF THE AREA THROUGH SUN.

.SOUTHWEST MAINLAND...STRONG NORTHEAST FLOW WILL CONTINUE TO OCCUR
ACROSS MUCH OF THE SOUTHWEST MAINLAND OVER THE NEXT FEW DAYS. THE
UPPER LEVEL RIDGE THAT IS PROGRESSING SOUTHWESTWARD WILL INCREASE THE
INTERIOR PRESSURE...AND WILL SUPPORT GUSTY WINDS. MEANWHILE...COLD
AIR CONTINUES TO BUILD IN THE INTERIOR NORTH BENEATH THE HIGH. A
REINFORCING COLD FRONT WILL MOVE THROUGH THE REGION THURSDAY WHICH
WILL SUPPORT OFFSHORE WINDS AND CONTINUE TO SUPPORT BELOW NORMAL
TEMPERATURES. EXPECT WIND CHILL ADVISORY CONDITIONS TO CONTINUE
THROUGH THU MORNING.

.ALEUTIANS...HIGH PRESSURE CONTINUES TO BUILD INTO THE WESTERN
BERING. COLD AIR ADVECTION ACROSS THE REGION CONTINUES TO SUPPORT
INSTABILITY SHOWERS. A SHORT WAVE WILL MOVE THROUGH THE EASTERN
ALEUTIANS TODAY AND BRING GUSTY WINDS THROUGH THE EVENING HOURS.
ANOTHER SHOT OF COLD AIR WILL SURGE ACROSS THE BERING THURSDAY AS A
COLD FRONT MOVES FROM THE EAST TO WEST.

.LONG TERM FORECAST...MODELS INDICATE THAT THE UPPER LEVEL BLOCKING
HIGH WILL DOMINATE THE REGION FOR THE NEXT WEEK. MODELS ARE
INDICATING THAT AN UPPER LEVEL TROUGH WILL MOVE INTO THE MAINLAND
ALASKA BY THE MIDDLE OF THE WEEKEND...WHICH WOULD ALLOW FOR MORE
UNSETTLED WEATHER TO OCCUR.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...WIND CHILL ADVISORY ZONE 155.
MARINE...GALE 121,132,126,127,352,150,155,170,172,175,176,351,352,411
              413.
FIRE WEATHER...NONE

RMC JAN 12