Gale Warning 124, NWS Anchorage, AK

000 
FZAK61 PAFC 071227
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AST THU FEB 7 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.

PKZ399-080300-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A TROUGH OF LOW PRESSURE WILL PERSIST ALONG THE GULF COAST 
THROUGH THU NIGHT. A 973 MB LOW NEAR 50N 155W FRI MORNING 
WILL MOVE TO NEAR 52N 148W BY FRI NIGHT. 
$$

PKZ351-080300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AST THU FEB 7 2008

...GALE WARNING FRIDAY...

.TODAY...NW WIND 20 TO 30 KT. SEAS 8 FT BUILDING TO 16 FT IN THE
AFTERNOON. FREEZING SPRAY. 
.TONIGHT...N WIND 15 TO 25 KT. SEAS 16 FT. FREEZING SPRAY. 
.FRI...E WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. 
SEAS 16 FT. SNOW. 
.FRI NIGHT...E WIND 40 TO 50 KT. SEAS 24 FT. 
.SAT...N WIND 35 KT. SEAS 21 FT. 
.SUN...SW WIND 25 KT. SEAS 11 FT. 
.MON...NW WIND 15 KT. SEAS 11 FT.  

$$

PKZ352-080300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF 144W
400 AM AST THU FEB 7 2008

...GALE WARNING FRIDAY...

.TODAY...NW WIND 20 TO 30 KT. SEAS 10 BUILDING TO 20 FT IN THE
AFTERNOON. FREEZING SPRAY. 
.TONIGHT...NE WIND 20 TO 30 KT. SEAS 20 FT. 
.FRI...E WIND 35 TO 45 KT. SEAS 22 FT. SNOW AND RAIN. 
.FRI NIGHT...NE WIND 50 KT. SEAS 26 FT. 
.SAT...N WIND 35 KT. SEAS 23 FT. 
.SUN...SW WIND 20 KT. SEAS 13 FT. 
.MON...W WIND 15 KT. SEAS 17 FT.  

$$

000 
FZAK61 PAFC 080010
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
310 PM AST THU FEB 7 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.

PKZ399-081500-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A TROUGH OF LOW PRESSURE WILL PERSIST ALONG THE GULF COAST THROUGH
THU NIGHT. A 973 MB LOW NEAR 50N 152W FRI AFTERNOON WILL MOVE TO 54N
142W AT 975 MB SAT AFTERNOON. 

$$

PKZ351-081500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AST THU FEB 7 2008

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

.TONIGHT...N TO NE WIND 15 TO 25 KT. SEAS 11 TO 17 FT. FREEZING
SPRAY.
.FRI...E WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS
10 TO 16 FT. SNOW SHOWERS. FREEZING SPRAY.
.FRI NIGHT...E WIND 30 TO 45 KT. SEAS 12 TO 21 FT. SNOW SHOWERS.
FREEZING SPRAY.
.SAT...NE WIND 40 KT. SEAS 21 FT. 
.SAT NIGHT...NE WIND 25 KT. SEAS 18 FT. 
.SUN...NE WIND 15 KT. SEAS 13 FT. 
.MON...E WIND 25 KT. SEAS 12 FT. 
.TUE...E WIND 20 KT. SEAS 14 FT.  

$$

PKZ352-081500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AST THU FEB 7 2008

...STORM WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...E TO NE WIND 15 TO 25 KT. SEAS 13 TO 20 FT. 
.FRI...E WIND 35 KT INCREASING TO 50 KT IN THE AFTERNOON. SEAS
12 TO 20 FT. SNOW.
.FRI NIGHT...E WIND 50 KT. SEAS 26 FT. SNOW.
.SAT...NE WIND 45 KT. SEAS 27 FT. 
.SAT NIGHT...NE WIND 30 KT. SEAS 21 FT. 
.SUN...E WIND 25 KT. SEAS 14 FT. 
.MON...E WIND 30 KT. SEAS 15 FT. 
.TUE...S WIND 15 KT. SEAS 17 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
400 PM AST WED FEB 6 2008

.MODEL DISCUSSION...MODELS ARE DOING WELL IN THE SHORT TERM AND WITH
THE OVERALL PATTERN THROUGH THE WEEKEND. THE DIFFERENCES IN THE
MODELS START AROUND 72 HOURS OUT AND DEAL WITH THE MOVEMENT OF THE
LOW THAT WILL BE AFFECTING THE GULF OF ALASKA. THE DIFFERENCES CAN BE
SUMMED UP BY THE GFS AND NAM ARE MOVING THE LOW INTO THE EASTERN GULF
NEAR THE QUEEN CHARLOTTE ISLANDS BY SATURDAY WHILE THE ECMWF HAS IT
REMAINING TO THE SOUTH OF KODIAK ISLAND SATURDAY. AFTER CLOSE
EXAMINATION OF THE TWO SOLUTIONS THE GFS IS FAVORED DUE TO THE WAY IT
FITS BETTER IN CONJUNCTION TO THE UPPER LEVEL PATTERNS. WITH A STRONG
LOW SOUTH OF THE WESTERN ALEUTIANS BY SATURDAY A MORE EASTERLY
POSITIONING OF A LOW IS PREFERRED. IN ADDITION TO THE THE GS HAS BEEN
STABLE WITH ITS SOLUTIONS THE PAST FEW RUNS.

.ANALYSIS AND UPPER LEVELS...SURFACE HIGH PRESSURE PERSISIT OVER THE
ALASK INTERIOR AND THE NORTHERN BERING SEA. THE FRONTAL ZONE REMAINS
ALONG THE ALEUTIAN ISLANDS INTO THE SOUTHERN GULF OF ALASKA. THE
TROUGH ALONG THE NORTH GULF COAST ALSO PERSISTS AND IS CAUSING SOME
SCATTERED SNOW SHOWERS IN THE NORTHERN GULF.
THE JET STREAM REMAINS SOUTH OF THE FORECAST AREA AND WILL REMAIN SO
INTO THE WEEKEND.
AN UPPER LEVEL TROUGH IS OVER THE COPPER RIVER BASIN AND NORTH GULF
COAST. THIS TROUGH WILL MOVE EASTWARD OVERNIGHT AND ALLOW UPPER LEVEL
NORTHWEST FLOW TO INCREASE OVER SOUTH CENTRAL ALASKA.

.SHORT TERM FORECAST...THE INCREASED UPPER LEVEL FLOW IN CONJUNCTION
WITH THE HIGH PRESSURE IN THE INTERIOR AND TROUGH ALONG THE NORTH
GULF COAST WILL COMBINE TO INCREASE GAP WINDS ALONG THE NORTH GULF
COAST TONIGHT. WINDS ARE EXPECTED TO REACH WARNING LEVELS THROUGH
THOMPSON PASS AND THE COPPER RIVER DELTA TONIGHT THROUGH THURSDAY
MORNING. OTHER WINDS AREAS SUCH AS THE MATANUSKA RIVER VALLEY WILL
ALSO REMAIN WINDY INTO THURSDAY.
SNOW SHOWERS CONTINUE OVER THE ALEUTIANS ISLANDS AS THE FRONTAL ZONE
REMAINS STATIONARY IN THE AREA. THE PRIBILOF ISLANDS WILL CONTINUE TO
HAVE MOSTLY CLEAR SKIES BUT THE STRONG PRESSURE GRADIENT BETWEEN THE
LOWER PRESSURE ALONG THE ALEUTIAN ISLANDS AND THE RIDGE IN THE
NORTHERN BERING SEAS WILL CONTINUE TO BRING STIFF EASTERLY WINDS..AND
PERIODS OF BLOWING SNOW ON SAINT GEORGE ISLAND.
STIFF NORTHEAST WINDS AND TEMPERATURES WELL BELOW ZERO WILL CONTINUE
IN THE KUSKOKWIM DELTA AS WIND CHILL READINGS GET DOWN TO 40 BELOW OR
COLDER.

.LONG TERM FORECAST...LITTLE CHANGE IN THE FORECAST INTO THE WEEKEND.
THE ONLY EXCEPTION WILL BE AROUND KODIAK ISLAND WHERE THE LOW MOVING
INTO THE GULF WILL BRING IN A CHANCE OF SNOW BY THURSDAY NIGHT AND
SNOW WILL BE LIKELY FRIDAY. WINDS MAY ALSO BE A FACTOR AND CAUSE
BLOWING SNOW.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND WARNING 131 135.
MARINE...GALE 132 150 155 165 170 172 175 176 179.
         HEAVY FREEZING SPRAY 120 - 141 160 165 179 185.
FIRE WEATHER...NONE.

FEB 08