Gale Warning 360, NWS Anchorage, AK

469 
FZAK62 PAFC 011156
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
356 AM AKDT Fri Jun 1 2018

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-020045-
356 AM AKDT Fri Jun 1 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 980 mb low at 48N 164E moves to 55N 176W at 966 mb by Sat 
morning and then to 60N 176E at 974 mb by Sun morning.

$$

PKZ411-020045-
Bering Sea Offshore West of 180 and East of the International
Dateline-
356 AM AKDT Fri Jun 1 2018

...GALE WARNING THROUGH SATURDAY...

.TODAY...SE wind 15 to 30 kt increasing to 30 to 45 kt in the
afternoon. Seas 7 ft building to 13 ft. Patchy fog. Rain.
.TONIGHT...SE wind 30 to 45 kt. Seas 11 to 19 ft. Rain.
.SAT...SW wind 25 to 40 kt. Seas 14 to 22 ft. Rain showers.
.SAT NIGHT...SW wind 20 to 35 kt. Seas 13 to 21 ft.
.SUN...SW wind 15 to 30 kt. Seas 8 to 16 ft.
.MON THROUGH TUE...N wind up to 20 kt. Seas 7 to 12 ft.

$$

PKZ412-020045-
Bering Sea Offshore 171W to 180 and North of 56N-
356 AM AKDT Fri Jun 1 2018

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...S wind 10 to 25 kt. Seas 4 to 7 ft.
.TONIGHT...SE wind 30 to 45 kt. Seas 9 to 14 ft. Rain.
.SAT...SE wind 25 to 40 kt. Seas 14 to 19 ft. Rain.
.SAT NIGHT...S wind 25 to 35 kt. Seas 15 to 20 ft.
.SUN...S wind 15 to 30 kt. Seas 10 to 18 ft.
.MON...E wind 10 to 20 kt. Seas 9 ft.
.TUE...NE wind 10 to 20 kt. Seas 7 ft.

$$

PKZ413-020045-
Bering Sea Offshore 171W to 180 and South of 56N-
356 AM AKDT Fri Jun 1 2018

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 10 to 20 kt becoming SE 20 to 35 kt in the 
afternoon. Seas 3 to 8 ft.
.TONIGHT...SE wind 30 to 45 kt. Seas 10 to 18 ft. Rain.
.SAT...S wind 25 to 40 kt. Seas 14 to 22 ft. Rain showers.
.SAT NIGHT...SW wind 25 to 40 kt. Seas 16 to 22 ft.
.SUN THROUGH MON...SW wind 15 to 30 kt. Seas 9 to 17 ft.
.TUE...NW wind 10 to 20 kt. Seas 6 to 9 ft.

$$

PKZ414-020045-
Bering Sea Offshore East of 171W-
356 AM AKDT Fri Jun 1 2018

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...S wind up to 10 kt increasing to 10 to 15 kt in the 
afternoon. Seas 4 ft.
.TONIGHT...S wind 10 to 20 kt becoming SE 20 to 35 kt after 
midnight. Seas 4 to 9 ft.
.SAT...SE wind 20 to 35 kt. Seas 7 to 12 ft. Rain.
.SAT NIGHT...S wind 15 to 30 kt. Seas 9 to 14 ft.
.SUN THROUGH MON...SE wind 10 to 25 kt. Seas 7 to 12 ft.
.TUE...E wind 15 kt. Seas 5 to 8 ft.

$$

034 
FZAK62 PAFC 012255
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
255 PM AKDT Fri Jun 1 2018

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-021300-
255 PM AKDT Fri Jun 1 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 972 MB low at 52N 169E will intensify to 965 MB at 55N 175E
Friday night then weaken to 981 MB at 59N 173E Sunday afternoon.  
A low will move off the southern Kamchatka Peninsula Saturday 
night and be a 987 mb low at 54N 174E Sunday afternoon. 

$$

PKZ411-021300-
Bering Sea Offshore West of 180 and East of the International
Dateline-
255 PM AKDT Fri Jun 1 2018

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SE wind 30 to 45 kt. Seas 12 to 20 ft. Rain.
.SAT...SW wind 25 to 40 kt. Seas 15 to 23 ft. Widespread rain
showers.
.SAT NIGHT...SW wind 25 to 40 kt diminishing to 20 to 30 kt after
midnight. Seas 14 to 22 ft.
.SUN...SW wind 10 to 25 kt. Seas 9 to 14 ft.
.SUN NIGHT...SW wind up to 20 kt. Seas 7 to 10 ft.
.MON THROUGH WED...N wind up to 20 kt. Seas 6 to 10 ft.

$$

PKZ412-021300-
Bering Sea Offshore 171W to 180 and North of 56N-
255 PM AKDT Fri Jun 1 2018

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...SE wind 30 to 45 kt. Seas 7 to 12 ft building to 10 to
18 ft after midnight. Rain.
.SAT...SE wind 25 to 40 kt. Seas 14 to 20 ft. Rain.
.SAT NIGHT...S wind 30 kt. Seas 16 to 21 ft. Rain showers.
.SUN...S wind 20 to 30 kt. Seas 12 to 20 ft.
.SUN NIGHT...SE wind 10 to 20 kt. Seas 8 to 13 ft.
.MON...E wind 10 to 20 kt. Seas 6 to 9 ft.
.TUE THROUGH WED...N wind 10 to 20 kt. Seas 4 to 7 ft.

$$

PKZ413-021300-
Bering Sea Offshore 171W to 180 and South of 56N-
255 PM AKDT Fri Jun 1 2018

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SE wind 30 to 45 kt. Seas 11 to 19 ft. Rain.
.SAT...S wind 30 to 40 kt. Seas 15 to 23 ft. Widespread rain
showers.
.SAT NIGHT...SW wind 25 to 40 kt. Seas 16 to 24 ft.
.SUN...S wind 15 to 30 kt. Seas 11 to 18 ft.
.SUN NIGHT...S wind 10 to 25 kt. Seas 7 to 11 ft.
.MON THROUGH WED...NW wind up to 20 kt. Seas 6 to 11 ft.

$$

PKZ414-021300-
Bering Sea Offshore East of 171W-
255 PM AKDT Fri Jun 1 2018

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...S wind 10 to 25 kt becoming SE 20 to 35 kt after
midnight. Seas 4 to 9 ft. Rain.
.SAT...SE wind 25 to 40 kt. Seas 7 to 12 ft. Rain.
.SAT NIGHT...S wind 15 to 30 kt. Seas 9 to 15 ft. Rain.
.SUN...S wind 10 to 20 kt. Seas 9 to 15 ft.
.SUN NIGHT...SE wind 10 to 20 kt. Seas 7 to 11 ft.
.MON THROUGH TUE...E wind up to 15 kt. Seas 5 to 8 ft.
.WED...NE wind 15 kt. Seas 4 ft.

$$

396 
FZAK62 PAFC 021159
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
359 AM AKDT Sat Jun 2 2018

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-030030-
359 AM AKDT Sat Jun 2 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 965 mb low at 55N 175E will move to 60N 176E at 974 mb by Sun
morning. A 984 mb low at 53N 165E Sun morning will move to 54N 174W 
at 996 mb by Mon morning.

$$

PKZ411-030030-
Bering Sea Offshore West of 180 and East of the International
Dateline-
359 AM AKDT Sat Jun 2 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 30 to 45 kt. Seas 16 to 25 ft. Widespread rain
showers.
.TONIGHT...SW wind 25 to 40 kt diminishing to 20 to 30 kt after
midnight. Seas 14 to 22 ft.
.SUN...SW wind 15 to 25 kt becoming S 10 to 20 kt in the afternoon. 
Seas 9 to 14 ft.
.SUN NIGHT...SW wind up to 15 kt. Seas 7 to 10 ft.
.MON...W wind up to 20 kt. Seas 6 to 9 ft.
.TUE THROUGH WED...N wind up to 20 kt. Seas 6 ft.

$$

PKZ412-030030-
Bering Sea Offshore 171W to 180 and North of 56N-
359 AM AKDT Sat Jun 2 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 25 to 40 kt. Seas 14 to 20 ft. Rain.
.TONIGHT...S wind 25 to 35 kt. Seas 17 to 22 ft. Rain showers.
.SUN...S wind 15 to 30 kt. Seas 12 to 20 ft.
.SUN NIGHT...SE wind 10 to 20 kt. Seas 7 to 12 ft.
.MON THROUGH WED...N wind up to 15 kt. Seas 5 to 8 ft.

$$

PKZ413-030030-
Bering Sea Offshore 171W to 180 and South of 56N-
359 AM AKDT Sat Jun 2 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 30 to 40 kt. Seas 15 to 23 ft. Widespread rain
showers.
.TONIGHT...SW wind 25 to 40 kt. Seas 16 to 24 ft.
.SUN...S wind 15 to 25 kt. Seas 10 to 18 ft.
.SUN NIGHT...S wind up to 20 kt. Seas 7 to 11 ft.
.MON...W wind up to 15 kt. Seas 5 to 8 ft.
.TUE THROUGH WED...NW wind up to 20 kt. Seas 6 ft.

$$

PKZ414-030030-
Bering Sea Offshore East of 171W-
359 AM AKDT Sat Jun 2 2018

...GALE WARNING TODAY...

.TODAY...SE wind 25 to 40 kt. Seas 8 to 13 ft. Rain.
.TONIGHT...S wind 15 to 30 kt. Seas 9 to 16 ft. Rain.
.SUN...S wind 10 to 20 kt. Seas 10 to 15 ft.
.SUN NIGHT...SE wind 10 to 20 kt. Seas 7 to 11 ft.
.MON THROUGH WED...NE wind up to 15 kt. Seas 4 to 7 ft.

$$

777 
FZAK62 PAFC 022313
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
313 PM AKDT Sat Jun 2 2018

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-031230-
313 PM AKDT Sat Jun 2 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
A 970 mb low at 58N 178E moves to 57N 170E at 998 mb for Mon
afternoon. Its front wraps over the Northern Bering into Western
Alaska through Mon afternoon. A 983 mb low at 53N 164E on Sun
morning moves to 55N 167W at 997 mb by Mon afternoon. Its front
sweeps the Aleutians to the Alaska Peninsula by Mon afternoon.

$$

PKZ411-031230-
Bering Sea Offshore West of 180 and East of the International
Dateline-
313 PM AKDT Sat Jun 2 2018

...GALE WARNING TONIGHT...

.TONIGHT...W wind 25 to 40 kt becoming SW 20 to 30 kt after
midnight. Seas 15 to 23 ft.
.SUN...SW wind 15 to 30 kt. Seas 9 to 14 ft.
.SUN NIGHT...SW wind 10 to 20 kt. Seas 7 to 10 ft.
.MON...SW wind up to 15 kt. Seas 8 ft.
.MON NIGHT...SW wind up to 15 kt. Seas 7 ft.
.TUE THROUGH THU...N wind up to 20 kt. Seas 5 ft.

$$

PKZ412-031230-
Bering Sea Offshore 171W to 180 and North of 56N-
313 PM AKDT Sat Jun 2 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 25 to 35 kt. Seas 17 to 24 ft. Rain showers.
.SUN...S wind 15 to 30 kt. Seas 13 to 21 ft.
.SUN NIGHT...SE wind 10 to 20 kt. Seas 9 to 12 ft.
.MON...E wind up to 15 kt. Seas 7 ft.
.MON NIGHT...NE wind up to 15 kt. Seas 7 ft.
.TUE THROUGH THU...N wind up to 15 kt. Seas 5 ft.

$$

PKZ413-031230-
Bering Sea Offshore 171W to 180 and South of 56N-
313 PM AKDT Sat Jun 2 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 25 to 40 kt. Seas 16 to 25 ft.
.SUN...S wind 15 to 25 kt. Seas 10 to 18 ft.
.SUN NIGHT...S wind 10 to 20 kt. Seas 9 ft. Rain.
.MON...NW wind up to 15 kt. Seas 7 ft.
.MON NIGHT...NW wind up to 15 kt. Seas 6 ft.
.TUE THROUGH THU...NW wind 10 to 20 kt. Seas 4 to 7 ft.

$$

PKZ414-031230-
Bering Sea Offshore East of 171W-
313 PM AKDT Sat Jun 2 2018

.TONIGHT...SW wind 15 to 30 kt. Seas 9 to 16 ft. Rain.
.SUN...S wind 10 to 20 kt. Seas 9 to 15 ft.
.SUN NIGHT...SE wind 10 to 20 kt. Seas 8 to 11 ft.
.MON...E wind up to 15 kt. Seas 6 ft.
.MON NIGHT...NE wind up to 15 kt. Seas 5 ft.
.TUE THROUGH WED...NE wind up to 15 kt. Seas 5 ft.
.THU...N wind 10 kt. Seas 3 ft.

$$

546 
FZAK62 PAFC 031149
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
349 AM AKDT Sun Jun 3 2018

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-040100-
349 AM AKDT Sun Jun 3 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 985 mb low at 53N 172E will move to 54N 161W at 1002 mb Tue 
morning. A weak front over the Alaska Peninsula will remain 
nearly stationary through Tue morning.

$$

PKZ411-040100-
Bering Sea Offshore West of 180 and East of the International
Dateline-
349 AM AKDT Sun Jun 3 2018

.TODAY...SW wind 15 to 30 kt. Seas 8 to 16 ft.
.TONIGHT...SW wind 10 to 20 kt. Seas 7 to 10 ft.
.MON...SW wind 10 to 15 kt. Seas 6 to 9 ft.
.MON NIGHT...SW wind up to 15 kt. Seas 7 ft.
.TUE THROUGH THU...NE wind up to 15 kt. Seas 5 ft.

$$

PKZ412-040100-
Bering Sea Offshore 171W to 180 and North of 56N-
349 AM AKDT Sun Jun 3 2018

.TODAY...S wind 20 to 30 kt. Seas 13 to 21 ft.
.TONIGHT...SE wind 10 to 20 kt. Seas 9 to 13 ft.
.MON...E wind 10 to 15 kt. Seas 8 ft.
.MON NIGHT...NE wind up to 15 kt. Seas 6 ft.
.TUE THROUGH WED...NE wind up to 15 kt. Seas 5 ft.
.THU...N wind 15 kt. Seas 4 ft.

$$

PKZ413-040100-
Bering Sea Offshore 171W to 180 and South of 56N-
349 AM AKDT Sun Jun 3 2018

.TODAY...SW wind 15 to 25 kt. Seas 11 to 18 ft.
.TONIGHT...S wind 10 to 20 kt. Seas 9 ft. Rain.
.MON...NW wind 10 to 15 kt. Seas 8 ft.
.MON NIGHT...NW wind up to 15 kt. Seas 6 ft.
.TUE THROUGH THU...N wind up to 10 kt. Seas 4 ft.

$$

PKZ414-040100-
Bering Sea Offshore East of 171W-
349 AM AKDT Sun Jun 3 2018

.TODAY...S wind 10 to 20 kt. Seas 9 to 15 ft.
.TONIGHT...SE wind 10 to 20 kt. Seas 8 to 12 ft.
.MON...E wind 10 to 15 kt. Seas 7 ft.
.MON NIGHT...NE wind up to 15 kt. Seas 5 ft.
.TUE THROUGH WED...N wind up to 15 kt. Seas 4 ft.
.THU...NW wind 15 kt. Seas 4 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
445 AM AKDT Thu May 31 2018

.ANALYSIS AND UPPER LEVELS...

The longwave pattern features a broad area of troughing that spans
from the Eastern Bering across Southwest Alaska and into the Gulf
Of Alaska. The remnants of a surface low circulation are
southeast of Kodiak. Currently, there is a ridge over the Western
Aleutians. The latest satellite imagery has a widespread area of
low level and mid level clouds from the Alaska Peninsula to
Cordova. The four radars monitoring the area of responsibility
all have something on them. The Kenai radar just has isolated
showers, but the radar at Bethel and Middleton Island are much
more active.

&&

.MODEL DISCUSSION...

Models are in good consensus through Sunday with the major
synoptic features. The NAM GFS and ECMWF have converged one the
solution that brings the new low which is currently east of Japan
towards the Western Aleutians. Then moves the low north of the
chain and into the Western/Central Bering. The global models are
in sync with both the intensity and timing. The NCEP RMOP/Relative
Measure Of Predictability for the Western Aleutian low is handily
in high confidence territory. For the low south of Kodiak the
models steer it into the Gulf of Alaska and slowly pushing
southeastward.

&&

.AVIATION...
PANC...VFR conditions expected this forecast period. The radar for
Kenai (PAHG) has detected s few showers over the Cook Inlet. Added
VCSH to the TAF to account for the possibility of them approaching
the aerodrome.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)...
Most areas will begin to see a gradual clearing trend today as the
Gulf low slowly exists the area and weakens. This will will allow
for warmer and drier conditions from the interior and Yukon
Territory to move into the area, along with a strengthening
thermal trough that will be the focus for convection into this
weekend. After breaks in the clouds form over much of
Southcentral later this morning, expect diurnal shower development
over most areas north of the Kenai with isolated thunderstorms
over the Copper River Basin. The thermal trough will then begin to
intensify on Friday and Saturday, allowing for more widespread
thunderstorm development around the Copper River Basin and Susitna
Valley, as well as the potential for isolated thunderstorms from
Eagle River area into the Matanuska Valley on Friday and possibly
Saturday. Otherwise this pattern will allow for more seasonable
temperature with sea breezes expected along the usual areas along
Cook Inlet and the North Gulf Coast into this weekend.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
Cyclonic flow on the eastern periphery of the weakening Bering low
will continue to support cool and showery conditions today across
the southwest mainland. Extensive cloud cover and onshore flow
will generally limit thunderstorm potential this afternoon,
although a few isolated strikes will be possible in the Lower
Kuskokwim Valley if the area can get a few breaks of sunshine to
help destabilize the atmosphere. Diurnal convective activity
should be more prevalent across the region by Friday and
continuing into Saturday as the pattern transitions to a warmer
offshore flow regime and the thermal trough is reestablished from
the Kuskokwim Valley into Greater Bristol Bay. This will yield
more widespread thunderstorm potential over the course of the next
few afternoons/evenings.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
A relatively quiet pattern will continue through Friday morning as
the weakening low supports scattered to numerous showers across
the eastern half of the Bering while transient ridging promotes
even more benign conditions out west. Attention then turns to an
unseasonably strong low poised top enter the western Bering on
Friday. The associated front should be strong enough to produce
a narrow swath of storm force winds as it enters the Western
Aleutians, with more widespread storms then developing Friday
night into Saturday in cold advection on the back side of the
system. The front will track east across the Bering through
Saturday afternoon, bringing a quick shot of heavier rain to much
of the chain before weakening rapidly by the time it reaches the
Akpen late Saturday.

&&

.LONG TERM FORECAST (Days 3 through 7)...
Models have come into somewhat better agreement with regards to
the progression of the upper level pattern this weekend through
early next week. The deep, vertically stacked Bering low will
gradually fill as it meanders around the western Bering through
the weekend. The weakening associated frontal system will reach
the eastern Bering and Alaska Peninsula Saturday night and then
stall out and shear apart along the Southwest Alaska coast on
Sunday. A frontal wave will develop along a trailing section of
the front south of the Alaska Peninsula Sunday night but will
track off to the east well south of the Gulf Monday and Tuesday.

The broad upper level low over the Bering will progress gradually
east to be centered over central Bering Monday with a trough
elongating east Tuesday to stretch across the Alaska Peninsula
and into the western Gulf. The entire pattern will then continue
to shift to the south and east with upper level low centered over
the Alaska Peninsula and western Gulf Wednesday through Friday.
Of the all the various model solutions from yesterday's runs, this
one will bring the coolest overall weather. Easterly flow to the
north of the low will bring persistently showery weather to
Southwest Alaska while troughs and fronts rotating through the
Gulf will bring rain to the Gulf coast and cool, generally cloudy
onshore flow further inland to Southcentral Alaska.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...GALE 413 411 175 176. STORM 177 178.

&&

SYNOPSIS AND MODEL DISCUSSION...PJS
SOUTHCENTRAL ALASKA...DEK
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...CB
LONG TERM...JR