Storm Warning 173, NWS Anchorage, AK

000 
FZAK61 PAFC 281143
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AST FRI DEC 28 2007

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.

PKZ399-290300-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...A 986 MB LOW AT 58N 148
WILL REMAIN NEARLY STATIONARY THROUGH LATE TONIGHT THEN MOVE EAST TO
58N 143W AT 993 MB BY SAT AFTERNOON AND STALL AGAIN. A 987 MB LOW AT
54N 156W THIS AFTERNOON WILL BE NEAR 54N 147W BY LATE TONIGHT. THIS
LOW WILL MOVE TO 54N 137W BY SAT AFTERNOON AT 992 MB THEN MOVE EAST
AND DISSIPATE SAT NIGHT. 

$$

PKZ351-290300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AST FRI DEC 28 2007

...GALE WARNING TODAY AND SATURDAY...

.TODAY...W TO SW WIND 35 KT. SEAS 21 FT. 
.TONIGHT...SW WIND 30 KT. SEAS 18 FT. 
.SAT...S WIND 40 KT BECOMING NW IN THE AFTERNOON. SEAS 18 FT. SNOW
SHOWERS. 
.SAT NIGHT...W WIND 35 KT. SEAS 18 FT. 
.SUN...S WIND 25 KT. SEAS 12 FT. 
.MON...E WIND 45 KT. SEAS 23 FT. 
.TUE...E WIND 35 KT. SEAS 23 FT.  

$$

PKZ352-290300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AST FRI DEC 28 2007

...GALE WARNING TODAY AND SATURDAY...

.TODAY...W WIND 35 KT. SEAS 26 FT. 
.TONIGHT...SW WIND 20 KT BECOMING W 30 KT AFTER MIDNIGHT. SEAS
20 FT. 
.SAT...W WIND 40 KT. SEAS 20 FT. 
.SAT NIGHT...W WIND 45 KT. SEAS 24 FT. 
.SUN...S WIND 30 KT. SEAS 17 FT. 
.MON...E WIND 45 KT. SEAS 25 FT. 
.TUE...E WIND 35 KT. SEAS 23 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
500 AM AST THU DEC 27 2007

.MODEL DISCUSSION...MODELS IN OKAY AGREEMENT. GFS PREFERRED DUE TO
GOOD RUN TO RUN CONSISTENCY.

A 973 MB LOW NEAR THE ALASKA PENINSULA WILL MOVE INTO THE
SOUTHWESTERN INTERIOR AND DISSIPATE BY FRIDAY AFTERNOON. THE
ASSOCIATED WEATHER FRONT EXTENDS ACROSS THE EASTERN BERING SEA AND
BRISTOL BAY. IT WILL PASS OVER KODIAK ISLAND TODAY THEN BECOME NEARLY
STATIONARY ALONG THE GULF COAST ON FRIDAY. PLENTY OF SNOW AND RAIN
ALONG AND IN ADVANCE OF FRONT. GALE AND STORM FORCE NORTHWESTERLIES
ALONG THE REAR FLANK OF THE LOW. VISIBILITIES REDUCED TO ONE MILE OR
LESS AT TIMES IN SNOW AND BLOW SNOW THIS MORNING ACROSS THE PRIBILOFS
AND PORTIONS OF THE EASTERN ALEUTIANS AND ALASKA PENINSULA.

THE PRESSURE GRADIENT ALONG THE GULF COAST WILL REMAIN TIGHT THROUGH
THIS EVENING THEN GRADUALLY SLACKEN WHEN A 978 MB TRIPLE POINT LOW
DEVELOPS ALONG THE FRONT THIS EVENING. THE LOW WILL RAPIDLY DEEPEN TO
978 MB APPROX 60 NM NORTHWEST OF KODIAK CITY THU EVENING THEN WEAKEN
TO 986 MB 60 NM SOUTH OF YAKUTAT FRI NIGHT. GALE FORCE
NORTHEASTERLIES ALONG THE NORTH GULF COAST WILL HOLD THROUGH THIS
EVENING THEN RAPIDLY DIMINISH BY FRIDAY MORNING.

SNOW WILL DEVELOP ACROSS THE WHOLE OF SOUTHCENTRAL ALASKA ONCE AGAIN
TONIGHT AS THE TRIPLE POINT PASSES ALONG THE NORTH GULF COAST.
HOWEVER SIGNIFICANT SNOW ACCUMULATIONS SHOULD BE CONFINED TO KODIAK
ISLAND PRINCE WILLIAM SOUND AND PORTIONS OF THE KENAI PENINSULA.

A 983 MB LOW JUST SOUTH OF ST MATTHEW ISLAND WILL STRENGTHEN TO 975
MB THU NIGHT THEN WEAKEN TO 985 MB FRI NIGHT. BROAD WEST TO NORTHWEST
FLOW WILL ESTABLISH ITSELF ACROSS THE WHOLE OF THE BERING TODAY AND
PERSIST THROUGH THE WEEKEND. EXPECT SCATTERED CAA SNOW SHOWERS.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND 181
MARINE...STORM 150 155 160 165 179
         GALE  120 130 132 138 140 170 171
         SPRAY 160 165 180 185
FIRE WEATHER...NONE.

ASB DEC 07