Storm Warning 269, NWS Anchorage, AK

Issued

Dec 31, 2010, 4:00 AM AKST (13:00 UTC)

Expired

Dec 31, 2010, 6:00 PM AKST

In force

14 hr

Issued by

NWS Anchorage, AK

477 
FZAK51 PAFC 311249
CWFAER

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 AM AKST FRI DEC 31 2010

COASTAL WATERS FORECAST FOR THE NORTHERN GULF OF ALASKA COAST
UP TO 100 NM OUT INCLUDING KODIAK ISLAND AND COOK INLET.

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.

PKZ197-010300-
400 AM AKST FRI DEC 31 2010
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...A SERIES OF WEATHER FRONTS WILL MOVE SOUTH TO NORTH
ACROSS THE GULF THROUGH SAT NIGHT.

$$

PKZ120-010300-
CAPE SUCKLING TO GORE POINT
400 AM AKST FRI DEC 31 2010

...GALE WARNING TODAY AND SATURDAY...

.TODAY...S WIND 35 KT BECOMING SW 25 KT IN THE AFTERNOON. SEAS
15 FT. RAIN AND SNOW. 
.TONIGHT...S WIND 15 KT BECOMING SE 25 KT AFTER MIDNIGHT. SEAS
13 FT. RAIN AND SNOW SHOWERS. 
.SAT...SE WIND 40 KT. SEAS 12 FT BUILDING TO 18 FT IN THE AFTERNOON.
RAIN AND SNOW. 
.SAT NIGHT...SE WIND 45 KT. SEAS 20 FT. 
.SUN...SE WIND 45 KT. SEAS 22 FT. 
.MON...SE WIND 40 KT. SEAS 22 FT. 
.TUE...SE WIND 20 KT. SEAS 13 FT.  

$$

PKZ121-010300-
RESURRECTION BAY
400 AM AKST FRI DEC 31 2010

...SMALL CRAFT ADVISORY TODAY...

.TODAY...S WIND 10 KT INCREASING TO 25 KT THIS MORNING. WINDS THEN
DIMINISHING TO 15 KT LATER THIS AFTERNOON. SEAS 5 FT. HIGHER SEAS S
OF CAINES HEAD. RAIN.
.TONIGHT...S WIND 10 KT BECOMING N AFTER MIDNIGHT. SEAS 3 FT
BUILDING TO 5 FT AFTER MIDNIGHT. HIGHER SEAS S OF CAINES HEAD.
SNOW AND RAIN SHOWERS. 
.SAT...N WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. SEAS 5 FT.
HIGHER WINDS AND SEAS S OF CAINES HEAD. RAIN AND SNOW. 
.SAT NIGHT...N WIND 20 KT. SEAS 6 FT. 
.SUN...S WIND 20 KT. SEAS 5 FT. 
.MON...S WIND 15 KT. SEAS 3 FT. 
.TUE...N WIND 10 KT. SEAS 2 FT.  

$$

PKZ125-010300-
PRINCE WILLIAM SOUND
400 AM AKST FRI DEC 31 2010

...GALE WARNING TODAY AND SATURDAY...

.TODAY...SE WIND 35 KT BECOMING S 25 KT IN THE AFTERNOON. SEAS 10 FT
SUBSIDING TO 6 FT IN THE AFTERNOON. RAIN. 
.TONIGHT...SE WIND 10 KT BECOMING E 15 KT AFTER MIDNIGHT. SEAS 4 FT
BUILDING TO 6 FT AFTER MIDNIGHT. RAIN AND SNOW. 
.SAT...E WIND 20 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS 6 FT
BUILDING TO 9 FT IN THE AFTERNOON. RAIN AND SNOW. 
.SAT NIGHT...SE WIND 40 KT. SEAS 10 FT. 
.SUN...SE WIND 30 KT. SEAS 6 FT. 
.MON...E WIND 30 KT. SEAS 6 FT. 
.TUE...E WIND 10 KT. SEAS 2 FT.  

$$

PKZ129-010300-
PASSAGE CANAL
400 AM AKST FRI DEC 31 2010

...GALE WARNING TODAY AND SATURDAY...

.TODAY...E WIND 35 KT DIMINISHING TO 10 KT IN THE AFTERNOON. SEAS
7 FT SUBSIDING TO 2 FT. RAIN. 
.TONIGHT...E WIND 10 KT INCREASING TO 20 KT AFTER MIDNIGHT. SEAS
6 FT. SNOW.
.SAT...E WIND 35 KT. SEAS 7 FT. SNOW AND RAIN. 
.SAT NIGHT...E WIND 35 KT. SEAS 7 FT. 
.SUN...E WIND 30 KT. SEAS 5 FT. 
.MON...E WIND 20 KT. SEAS 3 FT. 
.TUE...E WIND 15 KT. SEAS 2 FT.  

$$

PKZ130-010300-
BARREN ISLANDS AND KAMISHAK BAY WATERS
400 AM AKST FRI DEC 31 2010

...STORM WARNING SATURDAY...

.TODAY...SW WIND 30 KT BECOMING W 20 KT IN THE AFTERNOON. SEAS 15 FT
EXCEPT 8 FT W OF THE BARREN ISLANDS. 
.TONIGHT...S WIND 20 KT BECOMING SE 40 KT AFTER MIDNIGHT. SEAS
11 FT. RAIN AND SNOW SHOWERS. 
.SAT...SE WIND 50 KT DIMINISHING TO 40 KT IN THE AFTERNOON. SEAS 16
FT. RAIN. 
.SAT NIGHT...SE WIND 35 KT. SEAS 16 FT. 
.SUN...SE WIND 50 KT. SEAS 18 FT. 
.MON...SE WIND 25 KT. SEAS 17 FT. 
.TUE...NW WIND 25 KT. SEAS 11 FT.  

$$

PKZ132-010300-
SHUYAK ISLAND TO SITKINAK
400 AM AKST FRI DEC 31 2010

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...W WIND 30 KT BECOMING SW 20 KT IN THE AFTERNOON. SEAS
15 FT. RAIN.
.TONIGHT...SE WIND 35 KT. SEAS 16 FT. RAIN AND SNOW SHOWERS. 
.SAT...SE WIND 35 KT. SEAS 18 FT. RAIN.
.SAT NIGHT...SW WIND 35 KT. SEAS 18 FT. 
.SUN...SE WIND 35 KT. SEAS 18 FT. 
.MON...S WIND 25 KT. SEAS 19 FT. 
.TUE...W WIND 20 KT. SEAS 14 FT.  

$$

PKZ138-010300-
SHELIKOF STRAIT
400 AM AKST FRI DEC 31 2010

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...SW WIND 30 KT DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS
9 FT SUBSIDING TO 5 FT IN THE AFTERNOON. RAIN AND SNOW. FREEZING
SPRAY. 
.TONIGHT...NE WIND 30 KT BECOMING NE 40 KT AFTER MIDNIGHT. SEAS 7 FT
BUILDING TO 12 FT AFTER MIDNIGHT. RAIN AND SNOW. 
.SAT...E WIND 40 KT DIMINISHING TO 30 KT IN THE AFTERNOON. SEAS
12 FT. RAIN AND SNOW. 
.SAT NIGHT...S WIND 30 KT. SEAS 7 FT. 
.SUN...E WIND 35 KT. SEAS 8 FT. 
.MON...E WIND 15 KT. SEAS 6 FT. 
.TUE...NW WIND 15 KT. SEAS 4 FT.  

$$

PKZ140-010300-
COOK INLET NORTH OF KAMISHAK BAY AND ENGLISH BAY
400 AM AKST FRI DEC 31 2010

...GALE WARNING SATURDAY...

.TODAY...WINDS BECOMING SW 30 KT THIS MORNING THEN DIMINISHING TO 20
KT THIS AFTERNOON. SEAS IN ICE FREE WATERS 7 FT. SNOW AND RAIN. 
.TONIGHT...E WIND 15 KT BECOMING NE 25 KT AFTER MIDNIGHT. SEAS IN
ICE FREE WATERS 4 FT BUILDING TO 6 FT AFTER MIDNIGHT. SNOW AND RAIN
SHOWERS.  
.SAT...NE WIND 30 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS 8 FT. SNOW AND RAIN.  
.SAT NIGHT...E WIND 35 KT. SEAS IN ICE FREE WATERS 8 FT. 
.SUN...NE WIND 40 KT. SEAS IN ICE FREE WATERS 8 FT. 
.MON...N WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT. 
.TUE...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.  

$$

PKZ141-010300-
KACHEMAK BAY
400 AM AKST FRI DEC 31 2010

...GALE WARNING SATURDAY...

.TODAY...S WIND 25 KT. SEAS 6 FT. RAIN AND SNOW. 
.TONIGHT...SE WIND 15 KT BECOMING E 30 KT AFTER MIDNIGHT. SEAS 2 FT
BUILDING TO 5 FT AFTER MIDNIGHT. SNOW AND RAIN SHOWERS. 
.SAT...E WIND 35 KT. SEAS 5 FT. RAIN AND SNOW. 
.SAT NIGHT...SE WIND 30 KT. SEAS 5 FT. 
.SUN...E WIND 40 KT. SEAS 5 FT. 
.MON...NE WIND 15 KT. SEAS 3 FT. 
.TUE...NW WIND 15 KT. SEAS 2 FT.  

$$

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Dec 30, 5:00 PM AKST, 11 hours earlier.

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
500 PM AKST THU DEC 30 2010

.MODEL DISCUSSION...
MODELS ARE IN GOOD AGREEMENT THROUGH SATURDAY NIGHT. NAM DOES A
SLIGHTLY BETTER JOB ON THE WINDS OVER THE MAINLAND AND ALONG THE
COAST AND THE GFS IS ACCEPTABLE OVER THE GULF AND BERING SEA.

.ANALYSIS AND UPPER LEVELS...
.UPPER LEVELS...THE UPPER RIDGE OVER THE EASTERN GULF AND WESTERN
CANADA CONTINUES TO MOVE EAST. THE MAIN UPPER LOW OVER THE NORTHERN
BERING IS SLOWLY DRIFTING SOUTH. THE SOUTH TO SOUTHWEST FLOW FORMED
BY THIS PATTERN HAS MOVED A WARM, MOIST MARINE AIRMASS INTO THE
SOUTHERN MAINLAND. A SHORT-WAVE TROUGH OVER THE SOUTHEASTERN BERING
AND THE ALASKA PENINSULA IS MOVING IS PIVOTING NORTHEAST AROUND THE
UPPER LOW.

.AT THE SURFACE...THE WARM FRONT OVER THE GULF OF ALASKA MOVED ONTO
THE CENTRAL GULF COAST THEN DISSIPATE THIS MORNING. A MODERATE LOW
DEVELOPED SOUTH OF KODIAK ISLAND THIS MORNING AND IS CURRENTLY MOVING
NORTH. ANOTHER LOW NEAR DUTCH HARBOR HAS BECOME NEARLY STATIONARY AND
CONTINUES TO WEAKEN THROUGH TODAY. AREAS OF SNOW HAD DEVELOPED
OVERNIGHT ALONG THE CENTRAL GULF COAST, THE KENAI PENINSULA AND
ANCHORAGE BUT THESE CHANGED TO SHOWERS BY EARLY MORNING. SNOW
CONTINUES TO FALL OVER THE SUSITNA VALLEY WHILE RAIN AND SNOW FALLS
OVER THE EASTERN KENAI PENINSULA. THE OCCLUDED FRONT OVER BRISTOL
WEDNESDAY DISSIPATED OVER SOUTHWEST ALASKA WEDNESDAY NIGHT.

.SHORT TERM FORECAST...
THE UPPER LOW WILL BECOME NEARLY STATIONARY OVER THE CENTRAL BERING
FRIDAY. THE UPPER RIDGE WILL REMAIN OVER WESTERN CANADA THROUGH
SATURDAY. THIS WILL KEEP A SOUTH TO SOUTHWEST FLOW OVER THE SOUTHERN
MAINLAND. THE UPPER SHORT-WAVE TROUGH WILL MOVE INTO THE KUSKOKWIM
DELTA, BRISTOL BAY AND KODIAK ISLAND TONIGHT THEN THROUGH
SOUTHCENTRAL ALASKA FRIDAY.

SOUTHCENTRAL ALASKA...THE SURFACE SOUTH OF KODIAK ISLAND WILL MOVE
NORTH INTO THE KENAI PENINSULA TONIGHT THEN DISSIPATE OVER CENTRAL
INTERIOR FRIDAY EVENING. MORE RAIN AND SNOW WILL DEVELOP ALONG THE
CENTRAL GULF COAST AND KENAI PENINSULA THIS EVENING. THE SNOW OVER
THE SUSITNA VALLEY WILL INTENSIFY TONIGHT AND SATURDAY WITH HIGHEST
ACCUMULATIONS EXPECTED ALONG THE WEST SIDE OF THE VALLEY. THE
PRECIPITATION WILL BECOME SHOWERS FRIDAY NIGHT BUT RAIN AND  SNOW
WILL REDEVELOP ALONG THE GULF COAST AS THE SOUTHERLY FLOW STRENGTHEN
AGAIN OVER THE GULF.

SOUTHWEST ALASKA...AREAS OF SNOW WILL DEVELOP OVER BRISTOL BAY AND
THE LOWER KUSKOKWIM VALLEY TONIGHT AND EARLY FRIDAY. MORE SNOW IS
EXPECTED FRIDAY NIGHT AND SATURDAY AS A LOW PRESSURE SYSTEM NEAR
DUTCH HARBOR FRIDAY EVENING MOVES INTO THE KUSKOKWIM DELTA COAST
SATURDAY. GUSTY EAST TO SOUTHEAST WINDS WILL ALSO DEVELOP OVER THE
REGION SATURDAY AND PRODUCE AREAS OF BLOWING SNOW.

BERING SEA...NORTH TO NORTHEAST FLOW WILL CONTINUE OVER THE CENTRAL
AND WESTERN BERING THROUGH SATURDAY. A LOW SOUTH OF THE CENTRAL
ALEUTIANS WILL CURVE NORTH ACROSS THE EASTERN ALEUTIANS FRIDAY
EVENING AND MOVE ONTO THE DELTA COAST SATURDAY. RAIN WILL MOVE INTO
THE EASTERN ALEUTIANS AND THE ALASKA PENINSULA FRIDAY AND FRIDAY
NIGHT THEN BECOME SHOWERS SATURDAY.

.LONG TERM FORECAST...
THE OVERALL UPPER LEVEL PATTERN DOES NOT CHANGE MUCH INTO THE
BEGINNING OF NEXT WEEK, SO THE WETTER WARMER WEATHER WILL PERSIST.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HEAVY SNOW WARNING FOR SUSITNA VALLEY.
MARINE...GALE 120 125 127 128 129 130 132 138 150 185
FIRE WEATHER...NONE.

NM DEC 10

Storm Warnings in Alaska, 2010Every storm warning in 2010

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.