Gale Warning 192, NWS Anchorage, AK

056 
FZAK61 PAFC 151157
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
357 AM AKDT WED MAR 15 2017

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-160115-
357 AM AKDT WED MAR 15 2017
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A BROAD 987 MB COMPLEX LOW CENTER NEAR 58N 144W WILL REMAIN 
NEARLY STATIONARY WHILE WEAKENING TO 992 MB THROUGH THU 
MORNING...THEN SHIFT TO THE SOUTHEAST GULF BY FRI MORNING. 

$$

PKZ351-160115-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
357 AM AKDT WED MAR 15 2017

.TODAY...N WIND 10 TO 25 KT. SEAS 5 TO 8 FT.
.TONIGHT...N WIND 15 TO 30 KT. SEAS 5 TO 10 FT. FREEZING SPRAY.
.THU...NE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.THU NIGHT...NE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.FRI...N WIND 10 TO 25 KT. SEAS 6 FT.
.SAT THROUGH SUN...SW WIND 10 TO 20 KT. SEAS 5 FT.

$$

PKZ352-160115-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
357 AM AKDT WED MAR 15 2017

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...NW WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.TONIGHT...NW WIND 25 TO 40 KT. SEAS 8 TO 13 FT. FREEZING SPRAY.
.THU...N WIND 20 TO 35 KT. SEAS 8 TO 13 FT.
.THU NIGHT...N WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.FRI...N WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.SAT THROUGH SUN...SW WIND 10 TO 20 KT. SEAS 7 FT.

$$

908 
FZAK61 PAFC 152108
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
108 PM AKDT WED MAR 15 2017

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-161045-
108 PM AKDT WED MAR 15 2017
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A BROAD 987 MB COMPLEX LOW CENTER NEAR 58N 144W WILL REMAIN 
NEARLY STATIONARY WHILE WEAKENING TO 992 MB THROUGH THU 
MORNING...THEN SHIFT TO THE SOUTHEAST GULF BY FRI MORNING. 

$$

PKZ351-161045-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
108 PM AKDT WED MAR 15 2017

.TODAY...N WIND 10 TO 25 KT. SEAS 5 TO 8 FT.
.TONIGHT...N WIND 15 TO 30 KT. SEAS 5 TO 10 FT. FREEZING SPRAY.
.THU...NE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.THU NIGHT...NE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.FRI...N WIND 10 TO 25 KT. SEAS 6 FT.
.SAT THROUGH SUN...SW WIND 10 TO 20 KT. SEAS 5 FT.

$$

PKZ352-161045-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
108 PM AKDT WED MAR 15 2017

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...NW WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.TONIGHT...NW WIND 25 TO 40 KT. SEAS 8 TO 13 FT. FREEZING SPRAY.
.THU...N WIND 20 TO 35 KT. SEAS 8 TO 13 FT.
.THU NIGHT...N WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.FRI...N WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.SAT THROUGH SUN...SW WIND 10 TO 20 KT. SEAS 7 FT.

$$

036 
FZAK61 PAFC 152331
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
331 PM AKDT WED MAR 15 2017

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-161400-
331 PM AKDT WED MAR 15 2017
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A BROAD 988 MB LOW NEAR 59N 147W MOVES TO 57N 145W AT 998 MB THU
AFTERNOON BEFORE PHASING IN WITH LOW SOUTH OF THE GULF OF ALASKA 
BY FRI MORNING. BY SAT MORNING A TROUGH DEVELOPS IN THE NORTHERN 
GULF.

$$

PKZ351-161400-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
331 PM AKDT WED MAR 15 2017

.TONIGHT...N WIND 15 TO 30 KT. SEAS 5 TO 10 FT. FREEZING SPRAY.
.THU...NE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.THU NIGHT...NE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.FRI...N WIND 10 TO 20 KT. SEAS 6 FT.
.FRI NIGHT...NW WIND UP TO 20 KT. SEAS 6 FT.
.SAT THROUGH MON...W WIND UP TO 20 KT. SEAS 3 TO 6 FT.

$$

PKZ352-161400-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
331 PM AKDT WED MAR 15 2017

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...NW WIND 20 TO 35 KT. SEAS 9 TO 15 FT. FREEZING SPRAY.
.THU...N WIND 20 TO 35 KT. SEAS 8 TO 13 FT.
.THU NIGHT...N WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.FRI...N WIND 15 TO 30 KT. SEAS 6 TO 10 FT.
.FRI NIGHT...NW WIND 10 TO 20 KT. SEAS 5 TO 8 FT.
.SAT THROUGH MON...NE WIND UP TO 20 KT. SEAS 5 TO 8 FT.

$$

244 
FZAK61 PAFC 161135
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
335 AM AKDT THU MAR 16 2017

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-170130-
335 AM AKDT THU MAR 16 2017
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
TWO 992 MB LOWS AT 58N 149W AND 58N 143W MERGE AND WEAKEN AS THEY
SWEEP ACROSS THE WESTERN GULF OF ALASKA THROUGH FRI MORNING. A 
996 MB LOW FORMS NEAR 55N 139W FRI MORNING AND REMAINS NEARLY 
STATIONARY THROUGH SAT MORNING.

$$

PKZ351-170130-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
335 AM AKDT THU MAR 16 2017

.TODAY...VARIABLE WIND TO 20 KT EXCEPT N 30 KT W OF 148W. 
SEAS 4 TO 9 FT.
.TONIGHT...N WIND 15 TO 30 KT BECOMING 10 TO 20 KT AFTER MIDNIGHT. 
SEAS 5 TO 10 FT.
.FRI...N WIND 10 TO 20 KT. SEAS 6 FT.
.FRI NIGHT...NW WIND UP TO 15 KT. SEAS 4 TO 7 FT.
.SAT THROUGH SUN...W WIND UP TO 20 KT. SEAS 3 TO 6 FT.
.MON...NW WIND 10 KT. SEAS 4 TO 7 FT.

$$

PKZ352-170130-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
335 AM AKDT THU MAR 16 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...VARIABLE WIND TO 15 KT EXCEPT NW WIND 25 TO 40 KT W OF 148W.
SEAS 8 TO 13 FT.
.TONIGHT...N WIND 20 TO 35 KT. SEAS 6 TO 11 FT.
.FRI...N WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.FRI NIGHT...NW WIND 10 TO 20 KT. SEAS 5 TO 8 FT.
.SAT THROUGH SUN...W WIND 10 TO 20 KT. SEAS 4 TO 8 FT.
.MON...N WIND 10 KT. SEAS 7 FT.

$$

619 
FZAK61 PAFC 162317
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
317 PM AKDT THU MAR 16 2017

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-171430-
317 PM AKDT THU MAR 16 2017
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 999 MB LOW NEAR 57N 148W MOVES INTO THE NORTH PACIFIC EARLY
FRI MORNING. A 1004 MB LOW DEVELOPS NEAR 59N 149W FRI NIGHT
AND DRIFTS TO 58N 149W AT 1000 MB SAT AFTERNOON.

$$

PKZ351-171430-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
317 PM AKDT THU MAR 16 2017

.TONIGHT...NE WIND 10 TO 25 KT. SEAS 3 TO 8 FT.
.FRI...N WIND 10 TO 20 KT. SEAS 4 TO 7 FT.
.FRI NIGHT...NW WIND 10 TO 20 KT. SEAS 4 TO 7 FT.
.SAT...W WIND UP TO 20 KT. SEAS 5 FT.
.SAT NIGHT...W WIND 15 KT. SEAS 4 FT.
.SUN THROUGH TUE...N WIND UP TO 15 KT. SEAS 3 TO 7 FT.

$$

PKZ352-171430-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
317 PM AKDT THU MAR 16 2017

...GALE WARNING TONIGHT...

.TONIGHT...VARIABLE WIND TO 15 KT...EXCEPT NW 20 TO 35 KT W OF
148W. SEAS 6 TO 14 FT.
.FRI...N WIND 15 TO 25 KT. SEAS 5 TO 11 FT.
.FRI NIGHT...NW WIND 10 TO 20 KT. SEAS 6 TO 9 FT.
.SAT...W WIND 10 TO 20 KT. SEAS 5 FT.
.SAT NIGHT...W WIND 10 TO 20 KT. SEAS 5 FT.
.SUN THROUGH TUE...NE WIND 15 KT. SEAS 4 TO 8 FT.

$$

996 
FZAK61 PAFC 171137
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
337 AM AKDT FRI MAR 17 2017

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-180145-
337 AM AKDT FRI MAR 17 2017
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
WEAK TROUGHS ROTATE OVER THE GULF OF ALASKA THROUGH SUN MORNING. A 
1001 MB LOW FORMS AT 58N 142W SAT MORNING AND MOVES TO 59N 147W AT 
1003 MB SUN MORNING.

$$

PKZ351-180145-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W-
337 AM AKDT FRI MAR 17 2017

.TODAY...N WIND 10 TO 20 KT. SEAS 4 TO 7 FT.
.TONIGHT...NW WIND 10 TO 20 KT. SEAS 6 FT.
.SAT...W WIND 10 TO 20 KT. SEAS 5 FT.
.SAT NIGHT...SW WIND 10 TO 20 KT. SEAS 3 TO 5 FT.
.SUN...W WIND UP TO 20 KT. SEAS 3 TO 6 FT.
.MON THROUGH TUE...N WIND 15 KT. SEAS 5 FT.

$$

PKZ352-180145-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W-
337 AM AKDT FRI MAR 17 2017

.TODAY...N WIND 15 TO 25 KT. SEAS 6 TO 10 FT.
.TONIGHT...NW WIND 10 TO 20 KT. SEAS 5 TO 9 FT.
.SAT...W WIND 10 TO 20 KT. SEAS 6 FT.
.SAT NIGHT...W WIND 10 TO 20 KT. SEAS 5 FT.
.SUN...W WIND 10 TO 20 KT. SEAS 5 TO 8 FT.
.MON THROUGH TUE...N WIND 20 KT. SEAS 5 TO 8 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
445 AM AKDT Tue Mar 14 2017

.ANALYSIS AND UPPER LEVELS...
The longwave trough is continuing to deepen over the mainland and
Gulf of Alaska this morning as it is reinforced by a trio of
shortwaves dropping southward from the arctic, the first of which
is now exiting the area south of Kodiak Island. In terms of
sensible weather the story remains very much the same as in
recent days with dry offshore flow promoting clear and cold
conditions across the bulk of the southern mainland. A tight
pressure gradient and cold air flowing out of the interior
continues to support gusty north winds across Southcentral AK,
especially through favored areas such as Valdez/Thompson Pass and
the Matanuska Valley. These winds are periodically being enhanced
by the numerous upper level waves transiting the region. A broad
surface low is spinning in place over the central gulf, bringing a
few showers to the coastal waters but keeping locations along the
north gulf coast limited to increasing mid level cloudiness as
the dry offshore flow has thus far prevented any precipitation
from reaching the ground. Out west, strong high pressure anchored
over the western Bering continues to yield benign conditions
across the region.

&&

.MODEL DISCUSSION...
Continued to utilize Hi-Res NAM guidance for the morning package
as outflow winds remain the primary short term forecast
challenge. Models remain in good synoptic agreement through the
latter half of the week as the mainland trough continues to deepen
and the Bering ridge weakens slightly but remains in control.

&&

.AVIATION...
PANC...VFR conditions and northerly winds will persist through
Wednesday morning. Increased gustiness is expected by early
afternoon as another disturbance drops southward across the Cook
Inlet region.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
Colder air will continue to pour southward as a series of short-
waves drop south across the state through Wednesday. This will
lead to tightening pressure and thermal gradients which in turn
will lead to strengthening winds, especially through coastal gaps.
Expect widespread gusty winds, especially during the daytime
hours. Temperatures will show an overall downward trend, though
there will still be large swings between night-time and day-time
temperatures thanks to the long hours of sunshine.

A low complex will persist over the Gulf, with surface lows and
upper level short-waves rotating around a fairly stationary
center. Some waves will try to push onshore along the north Gulf
coast and Prince William Sound, though the strong offshore flow
and very dry low level air will limit precip chances. If any snow
does reach the ground it will be very light.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
The forecast seems to be stuck on repeat. Stuck between a trough
in the Gulf and a ridge in the Bering, the mainland will continue
to see arctic air advected southward by these two systems. The
large scale pattern holds through for the next two days, producing
continued cold, clear, and windy conditions for most of the
mainland. The strongest winds will reside at higher elevations,
and around the Greater Bristol Bay region. Temperatures will
continue to creep lower, but March sun and strong northerly wind
will keep them elevated from what could be realized with current
850 mb temperatures.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
High pressure remains in control of the Bering Sea. A weak
boundary on the north/east side of the high will keep chances for
snow across the central Bering. Otherwise, the main story is gusty
winds through the Alaska Peninsula, where storm-force gusts
through bays and passes can be expected for the next couple days.

&&

.LONG TERM FORECAST (Days 3 through 7)...

High pressure will persist over the eastern Bering and mainland AK
on Thu. Cold air over the interior will intensify the pressure
gradient along the Gulf coast with occasional gusty outflow
conditions through channeled terrain. Impulses moving around the
Gulf low will provide coastal sections with a chance of light
snow. In the west, gusty channeled flow will persist through the
AKpen, while a small craft to gale force front with rain and snow
moves over the western and central Aleutians.

For days 4 through 7...High pressure will persist over the
northern Bering and mainland AK through the weekend. With
persistent cold air over the mainland and low pressure oscillating
around the Gulf, periods of gusty outflow winds can also be
expected. Some snow is also possible along the Gulf coast. In the
west, the front will stall over the western and central Aleutians
during the weekend, with rain and snow and some gale force winds.
The rest of the Aleutians as well as southwest AK will remain dry
through the weekend.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None
MARINE...Gale Warning 119 120 121 127 128 130 131 132 136 137 138
					  139 150
		 Heavy Freezing Spray Warning 121 127 138 139 141

&&

SYNOPSIS AND MODEL DISCUSSION...CB
AVIATION...CB
SOUTHCENTRAL ALASKA...SEB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MTL
LONG TERM...DS