Gale Warning 548, NWS Anchorage, AK

Issued

Aug 8, 2010, 4:00 PM AKDT (00:00 UTC)

Expired

Aug 9, 2010, 4:00 AM AKDT

In force

12 hr

Issued by

NWS Anchorage, AK

190 
FZAK51 PAFC 082353
CWFAER

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 PM AKDT SUN AUG 8 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.

PKZ197-091200-
400 PM AKDT SUN AUG 8 2010
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A WEATHER FRONT MOVES TO THE WESTERN GULF OF ALASKA THIS EVENING AND
THEN TO THE NORTHERN AND EASTERN GULF MON AFTERNOON.  
$$

PKZ120-091200-
CAPE SUCKLING TO GORE POINT
400 PM AKDT SUN AUG 8 2010

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SE WIND 15 KT INCREASING TO 25 KT AFTER MIDNIGHT. SEAS 3
FT BUILDING TO 5 FT. RAIN SHOWERS. 
.MON...S WIND 20 KT EXCEPT SE 30 KT NEAR THE COAST E OF MONTAGUE
ISLAND. SEAS 8 FT. RAIN.
.MON NIGHT...S WIND 15 KT. ALONG THE COAST E OF MONTAGUE ISLAND...SE
WIND 25 KT. SEAS 8 FT. 
.TUE...S WIND 15 KT. SEAS 7 FT. 
.TUE NIGHT...SW WIND 15 KT. SEAS 7 FT. 
.WED...VARIABLE WIND 10 KT. SEAS 6 FT. 
.THU...S WIND 15 KT. SEAS 6 FT. 
.FRI...SW WIND 20 KT. SEAS 5 FT.  

$$

PKZ121-091200-
RESURRECTION BAY
400 PM AKDT SUN AUG 8 2010

.TONIGHT...S WIND 15 KT. SEAS 3 FT. RAIN.
.MON...S WIND 10 KT. SEAS 2 FT. HIGHER SEAS S OF CAINES HEAD. RAIN.
.MON NIGHT...S WIND 10 KT IN THE EVENING BECOMING VARIABLE LESS THAN
10 KT. SEAS 2 FT. HIGHER SEAS S OF CAINES HEAD. 
.TUE...S WIND 10 KT. SEAS 2 FT. 
.TUE NIGHT AND WED...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. 
.THU...S WIND 10 KT. SEAS 2 FT. 
.FRI...S WIND 15 KT. SEAS 3 FT.  

$$

PKZ125-091200-
PRINCE WILLIAM SOUND
400 PM AKDT SUN AUG 8 2010

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...E WIND 10 KT INCREASING TO 20 KT AFTER MIDNIGHT. SEAS 2 FT
BUILDING TO 4 FT AFTER MIDNIGHT. PATCHY FOG. RAIN SHOWERS. 
.MON...E WIND 30 KT. SEAS 6 FT. RAIN.
.MON NIGHT...SE WIND 25 KT DIMINISHING TO 15 KT AFTER MIDNIGHT. SEAS
4 FT. 
.TUE...SE WIND 15 KT. SEAS 2 FT. 
.TUE NIGHT...SE WIND 10 KT. SEAS 2 FT. 
.WED AND THU...S WIND 10 KT. SEAS 2 FT. 
.FRI...SW WIND 10 KT. SEAS 2 FT.  

$$

PKZ129-091200-
PASSAGE CANAL
400 PM AKDT SUN AUG 8 2010

...SMALL CRAFT ADVISORY MONDAY...

.TONIGHT...E WIND 10 KT INCREASING TO 20 KT AFTER MIDNIGHT. SEAS 1
FOOT BUILDING TO 4 FT AFTER MIDNIGHT. PATCHY FOG. RAIN.
.MON...E WIND 25 KT. SEAS 4 FT. RAIN.
.MON NIGHT...E WIND 20 KT. SEAS 4 FT. RAIN SHOWERS. 
.TUE...E WIND 10 KT. SEAS 2 FT. 
.TUE NIGHT THROUGH THU...VARIABLE WIND LESS THAN 10 KT. SEAS 1 FOOT. 
.FRI...E WIND 10 KT. SEAS 2 FT.  

$$

PKZ130-091200-
BARREN ISLANDS AND KAMISHAK BAY WATERS
400 PM AKDT SUN AUG 8 2010

...GALE WARNING TONIGHT...

.TONIGHT...WEST OF THE BARREN ISLANDS...SE WIND 35 KT DIMINISHING TO
20 KT AFTER MIDNIGHT. SEAS 8 FT. EAST OF THE BARREN ISLANDS...SE WIND
25 KT BECOMING SW AFTER MIDNIGHT. SEAS 6 FT BUILDING TO 9 FT. RAIN
SHOWERS. 
.MON...WEST OF THE BARREN ISLANDS...SE WIND 25 KT. SEAS 6 FT. EAST OF
THE BARREN ISLANDS...SW WIND 25 KT. SEAS 10 FT. RAIN.
.MON NIGHT...WEST OF THE BARREN ISLANDS...SE WIND 25 KT. SEAS 6 FT.
EAST OF THE BARREN ISLANDS...S WIND 20 KT. SEAS 9 FT.
.TUE...S WIND 20 KT. SEAS 8 FT. 
.TUE NIGHT...SW WIND 20 KT. SEAS 7 FT. 
.WED...SW WIND 15 KT. SEAS 6 FT. 
.THU AND FRI...S WIND 20 KT. SEAS 6 FT. 

$$

PKZ132-091200-
SHUYAK ISLAND TO SITKINAK
400 PM AKDT SUN AUG 8 2010

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 11 FT. RAIN.
.MON...SW WIND 30 KT. SEAS 13 FT. 
.MON NIGHT...SW WIND 25 KT. SEAS 12 FT. 
.TUE...SW WIND 20 KT. SEAS 10 FT. 
.TUE NIGHT...SW WIND 20 KT. SEAS 9 FT. 
.WED...SW WIND 15 KT. SEAS 7 FT. 
.THU...S WIND 20 KT. SEAS 8 FT. 
.FRI...SW WIND 15 KT. SEAS 5 FT.  

$$

PKZ138-091200-
SHELIKOF STRAIT
400 PM AKDT SUN AUG 8 2010

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 8 FT. RAIN.
.MON...S WIND 25 KT. SEAS 9 FT. 
.MON NIGHT...SW WIND 25 KT. SEAS 8 FT. 
.TUE AND TUE NIGHT...SW WIND 20 KT. SEAS 6 FT. 
.WED...S WIND 15 KT. SEAS 5 FT. 
.THU...S WIND 20 KT. SEAS 5 FT. 
.FRI...VARIABLE WIND 10 KT. SEAS 3 FT.  

$$

PKZ140-091200-
COOK INLET NORTH OF KAMISHAK BAY AND ENGLISH BAY
400 PM AKDT SUN AUG 8 2010

.TONIGHT...NE WIND 15 KT. SEAS 3 FT. RAIN.
.MON...VARIABLE WIND 15 KT. SEAS 2 FT. RAIN.
.MON NIGHT...S WIND 20 KT EXCEPT VARIABLE 10 KT N OF KALGIN ISLAND.
SEAS 4 FT. 
.TUE...S WIND 20 KT. SEAS 4 FT. 
.TUE NIGHT...S WIND 15 KT. SEAS 3 FT. 
.WED...SW WIND 15 KT. SEAS 3 FT. 
.THU...S WIND 20 KT. SEAS 4 FT. 
.FRI...S WIND 15 KT. SEAS 3 FT.  

$$

PKZ141-091200-
KACHEMAK BAY
400 PM AKDT SUN AUG 8 2010

.TONIGHT...SE WIND 15 KT. SEAS 2 FT. RAIN.
.MON...SE WIND 10 KT BECOMING SW 15 KT IN THE AFTERNOON. SEAS
BUILDING TO 3 FT. 
.MON NIGHT...SE WIND 15 KT. SEAS 2 FT. 
.TUE...SW WIND 10 KT. SEAS 2 FT.
.TUE NIGHT...SE WIND 15 KT. SEAS 2 FT. 
.WED THROUGH FRI...SW WIND 10 KT. SEAS 2 FT.  
$$

NWS Anchorage, AK wrote its last area forecast discussion before this gale warning went out at Aug 8, 2:05 PM AKDT, 1 hour 55 minutes earlier.

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
205 PM AKDT SUN AUG 8 2010

.ANALYSIS AND UPPER LEVELS...A BROAD REGION OF LOW PRESSURE
ENCOMPASSES THE BERING AND EXTENDS INTO WESTERN MAINLAND ALASKA. A
STRONG PRESSURE GRADIENT EXISTS ALONG THE SOUTHERN FLANK OF THE LOW
PRESSURE AND IS SUPPORTING A 140 KT JET AT 300MB ABOVE THE ALEUTIAN
ISLANDS. A WIDE RIDGE COVERS THE GULF OF ALASKA.

.AT THE SURFACE...A POTENT 979 MB LOW IS CENTERED JUST TO THE
NORTHWEST OF THE PRIBILOF ISLANDS. AN OCCLUDED FRONT EXTENDS FROM
THIS LOW ACROSS THE BERING TO THE EAST AND THEN CURVES ALONG THE
WESTERN COAST OF THE ALASKA MAINLAND. THIS FRONT HAS BEEN SUPPORTING
RAIN ACROSS MUCH OF SOUTHWEST MAINLAND ALASKA THIS MORNING AND
LIGHTNING NEAR NUNIVAK ISLAND. THIS FRONT IS EXPECTED TO PROGRESS
TOWARDS SOUTHCENTRAL ALASKA BY THIS AFTERNOON.

.MODEL DISCUSSION...MODELS ARE IN DECENT AGREEMENT TODAY FOR THE
SHORT TERM SO A BLEND WAS USED. MODELS BEGIN TO DIVERGE ON THE TIMING
OF A BERING LOW BY NEXT WEDNESDAY SO BLENDED TOWARDS HPC GUIDANCE.

.SHORT TERM FORECAST...
.SOUTHCENTRAL ALASKA...AN OCCLUDED FRONT WILL APPROACH THE
SOUTHCENTRAL REGION AND GULF THIS AFTERNOON BRINGING THE CHANCE FOR
STEADY RAIN ACROSS MUCH OF THE REGION INTO TONIGHT. EXPECT SHOWERS TO
LINGER ACROSS THE AREA OVER THE NEXT SEVERAL DAYS...ESPECIALLY ALONG
THE COAST AS MOIST SOUTHWESTERLY FLOW PERSISTS AFTER THE FRONT.
STRONG WINDS ARE POSSIBLE ALONG TURNAGAIN ARM AND HIGHER ELEVATIONS
SUNDAY THROUGH MONDAY NIGHT...AS THE FRONT PASSES THROUGH.

.SOUTHWEST ALASKA...AN OCCLUDED FRONT ASSOCIATED WITH A BERING LOW
WILL CONTINUE TO PROGRESS NORTHEASTWARD TODAY. HOWEVER...SHOWERS WILL
CONTINUE TO BE POSSIBLE OVER THE NEXT SEVERAL DAYS AS THE BERING LOW
MOVES EASTWARD TOWARDS THE COAST.

.BERING SEA...EXPECT RAIN AND STRONG WINDS TO CONTINUE TO IMPACT MUCH
OF THE ALEUTIANS INTO MONDAY AS A STRONG LOW NEAR THE PRIBILOFS
GRADUALLY MOVES INLAND TO THE NORTHEAST. RAIN WILL BEGIN TO DIMINISH
ACROSS THE WESTERN ALEUTIANS TONIGHT AND THE CENTRAL ALEUTIANS BY
MONDAY AFTERNOON.

.LONG TERM FORECAST...UPPER LEVEL LOW PRESSURE WILL CONTINUE TO
DOMINATE THE BERING FOR MUCH OF THE WEEK. MOIST SOUTHWESTERLY FLOW
WILL CONTINUE ACROSS THE WEST AND SOUTHCENTRAL MAINLAND RESULTING IN
UNSETTLED WEATHER. MODELS ARE HINTING AT A RIDGE BUILDING A WEEK FROM
NOW BUT THERE IS CURRENTLY MUCH UNCERTAINTY IN THE MODELS AND LOW
CONFIDENCE IN THIS SOLUTION.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALES 130 170 172 175.
FIRE WEATHER...NONE.

ELN AUG 10

Gale Warnings in Alaska, 2010Every gale 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.