Gale Warning 37, NWS Juneau, AK

742 
FZAK51 PAJK 221236
CWFAJK

COASTAL WATERS FORECAST FOR SOUTHEAST ALASKA
NATIONAL WEATHER SERVICE JUNEAU AK
336 AM AKST SUN JAN 22 2017

SOUTHEAST ALASKA COASTAL WATERS FROM DIXON ENTRANCE TO
CAPE SUCKLING OUT 100 NM

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT THE AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WINDWAVE AND SWELL HEIGHT.

PKZ098-230100-
336 AM AKST SUN JAN 22 2017
.SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS...
A WEATHER FRONT WILL MOVE N TO THE EASTERN GULF SUN...THEN MOVE
E THROUGH SE AK LATE SUN NIGHT AND MON. A SERIES OF FRONTS WILL
MOVE THROUGH THE AREA MON NIGHT INTO LATE WEEK. 

$$

PKZ011-230100-
GLACIER BAY-
336 AM AKST SUN JAN 22 2017

.TODAY...N WIND 15 KT. SEAS 3 FT. FREEZING SPRAY. SNOW IN THE
AFTERNOON. 
.TONIGHT...N WIND 15 KT. SEAS 3 FT. SNOW.
.MON...SE WIND 15 KT. SEAS 3 FT. SNOW AND RAIN. 
.MON NIGHT...SE WIND 20 KT. SEAS 4 FT. 
.TUE...SE WIND 20 KT. SEAS 4 FT. 
.WED...SE WIND 20 KT. SEAS 4 FT. 
.THU...SE WIND 20 KT. SEAS 4 FT. 

$$

PKZ012-230100-
NORTHERN LYNN CANAL-
336 AM AKST SUN JAN 22 2017

.TODAY...N WIND 20 KT. SEAS 7 FT. FREEZING SPRAY. SNOW IN THE
AFTERNOON. 
.TONIGHT...N WIND 20 KT. SEAS 4 FT. FREEZING SPRAY. SNOW.
.MON...N WIND 15 KT BECOMING S IN THE AFTERNOON. SEAS 3 FT.
FREEZING SPRAY IN THE MORNING. SNOW. RAIN IN THE AFTERNOON. 
.MON NIGHT...S WIND 20 KT. GUSTS TO 35 KT. SEAS 4 FT. SNOW AND
RAIN. 
.TUE...S WIND 20 KT. SEAS 4 FT. 
.WED...S WIND 20 KT. SEAS 4 FT. 
.THU...S WIND 15 KT. SEAS 3 FT. 

$$

PKZ013-230100-
SOUTHERN LYNN CANAL-
336 AM AKST SUN JAN 22 2017

...SMALL CRAFT ADVISORY THROUGH THIS MORNING...

.TODAY...N WIND 25 KT DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS
7 FT. FREEZING SPRAY. SNOW IN THE AFTERNOON. 
.TONIGHT...N WIND 15 KT. SEAS 3 FT. SNOW AND RAIN. 
.MON...SE WIND 15 KT. SEAS 3 FT. RAIN AND SNOW. 
.MON NIGHT...SE WIND 20 KT. SEAS 4 FT. RAIN AND SNOW. 
.TUE...SE WIND 20 KT. SEAS 5 FT. 
.WED...SE WIND 25 KT. SEAS 5 FT. 
.THU...S WIND 20 KT. SEAS 4 FT. 

$$

PKZ021-230100-
ICY STRAIT-
336 AM AKST SUN JAN 22 2017

.TODAY...E WIND 20 KT. SEAS 4 FT. SNOW IN THE AFTERNOON. 
.TONIGHT...E WIND 20 KT. SEAS 4 FT. RAIN AND SNOW. 
.MON...SE WIND 15 KT. SEAS 3 FT. SNOW IN THE MORNING. RAIN.
.MON NIGHT...E WIND 20 KT. SEAS 4 FT. 
.TUE...E WIND 25 KT. SEAS 5 FT. 
.WED...E WIND 25 KT. SEAS 5 FT. 
.THU...E WIND 20 KT. SEAS 4 FT. 

$$

PKZ022-230100-
CROSS SOUND-
336 AM AKST SUN JAN 22 2017

...SMALL CRAFT ADVISORY THROUGH THIS AFTERNOON...

.TODAY...E WIND 25 KT. SEAS 6 FT. SNOW. RAIN IN THE AFTERNOON. 
.TONIGHT...E WIND 20 KT. SEAS 6 FT. S SWELL. RAIN AND SNOW.
.MON...E WIND 15 KT. SEAS 6 FT. S SWELL. RAIN AND SNOW IN THE
MORNING, THEN RAIN IN THE AFTERNOON. 
.MON NIGHT...E WIND 25 KT. SEAS 7 FT. S SWELL. RAIN AND SNOW. 
.TUE...E WIND 25 KT. SEAS 10 FT BUILDING TO 14 FT. 
.WED...E WIND 25 KT. SEAS 14 FT. 
.THU...E WIND 25 KT. SEAS 13 FT. 

$$

PKZ031-230100-
STEPHENS PASSAGE-
336 AM AKST SUN JAN 22 2017

.TODAY...N WIND 20 KT. SEAS 6 FT...HIGHEST OVER THE FAR NW PART.
.TONIGHT...N WIND 20 KT BECOMING SE LATE. SEAS 4 FT. SNOW. RAIN
LATE. 
.MON...SE WIND 20 KT. SEAS 4 FT. SNOW IN THE MORNING. RAIN.
.MON NIGHT...SE WIND 20 KT. GUSTS TO 35 KT. SEAS 4 FT. RAIN
AND SNOW. 
.TUE...SE WIND 25 KT. SEAS 5 FT. 
.WED...SE WIND 20 KT. SEAS 4 FT. 
.THU...SE WIND 25 KT. SEAS 5 FT. 

$$

PKZ032-230100-
NORTHERN CHATHAM STRAIT-
336 AM AKST SUN JAN 22 2017

...SMALL CRAFT ADVISORY DUE TO SEAS THROUGH EARLY THIS MORNING...

.TODAY...N WIND 20 KT. SEAS 8 FT EARLY IN THE MORNING SUBSIDING 
TO 5 FT...HIGHEST SEAS NORTHERN AREA. SNOW AND RAIN IN THE 
AFTERNOON.
.TONIGHT...N WIND 15 KT BECOMING SE 20 KT LATE. SEAS 4 FT. RAIN 
AND SNOW.
.MON...SE WIND 20 KT. SEAS 4 FT. SNOW IN THE MORNING. RAIN.
.MON NIGHT...SE WIND 20 KT. SEAS 4 FT. RAIN AND SNOW. 
.TUE...S WIND 20 KT. SEAS 4 FT. 
.WED...S WIND 20 KT. SEAS 4 FT. 
.THU...S WIND 20 KT. SEAS 4 FT. 

$$

PKZ033-230100-
SOUTHERN CHATHAM STRAIT-
336 AM AKST SUN JAN 22 2017

.TODAY...N WIND 20 KT. SEAS 4 FT. SNOW AND RAIN IN THE MORNING. 
.TONIGHT...NE WIND 20 KT. SEAS 4 FT. RAIN LATE. 
.MON...SE WIND 15 KT. SEAS 3 FT...EXCEPT 6 FT NEAR OCEAN ENTRANCES.
RAIN IN THE MORNING. 
.MON NIGHT...S WIND 20 KT. SEAS 4 FT. 
.TUE...S WIND 20 KT. SEAS 4 FT. 
.WED...S WIND 20 KT. SEAS 4 FT. 
.THU...SE WIND 25 KT. SEAS 5 FT. 

$$

PKZ034-230100-
FREDERICK SOUND-
336 AM AKST SUN JAN 22 2017

.TODAY...N WIND 20 KT. SEAS 4 FT. 
.TONIGHT...NE WIND 20 KT. SEAS 4 FT. 
.MON...SE WIND 15 KT. SEAS 3 FT. SNOW IN THE MORNING. RAIN.
.MON NIGHT...SE WIND 20 KT. GUSTS TO 35 KT. SEAS 4 FT. 
.TUE...SE WIND 25 KT. SEAS 5 FT. 
.WED...SE WIND 25 KT. SEAS 5 FT. 
.THU...SE WIND 25 KT. SEAS 5 FT. 

$$

PKZ035-230100-
SUMNER STRAIT-
336 AM AKST SUN JAN 22 2017

.TODAY...NE WIND 20 KT. SEAS 4 FT. 
.TONIGHT...E WIND 15 KT. SEAS 3 FT. 
.MON...E WIND 15 KT. SEAS 3 FT. SNOW IN THE MORNING. RAIN.
.MON NIGHT...E WIND 20 KT. GUSTS TO 35 KT. SEAS 4 FT. 
.TUE...E WIND 25 KT. SEAS 5 FT. 
.WED...E WIND 25 KT. SEAS 5 FT. 
.THU...E WIND 25 KT. SEAS 5 FT. 

$$

PKZ036-230100-
CLARENCE STRAIT-
336 AM AKST SUN JAN 22 2017

...SMALL CRAFT ADVISORY THIS AFTERNOON...

.TODAY...SE WIND 20 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS
5 FT.
.TONIGHT...SE WIND 20 KT. SEAS 4 FT. 
.MON...SE WIND 20 KT. SEAS 4 FT. RAIN IN THE AFTERNOON. 
.MON NIGHT...SE WIND 20 KT. SEAS 4 FT. 
.TUE...SE WIND 25 KT. SEAS 6 FT. 
.WED...SE WIND 25 KT. SEAS 5 FT. 
.THU...SE WIND 25 KT. SEAS 9 FT. 

$$

Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
540 AM AKST Sat Jan 21 2017

.SHORT TERM...High pressure will remain over the Yukon through
tonight. A weak trof will develop N into the eastern gulf tonight.
Weakening shortwave trof will move NW into the SE gulf late
tonight.

Main forecast concerns will be winds, cloud cover, and potential
for precip. Right now, strongest winds are over the N inner
channels with 35-50 KT N winds over most of that area. Models
suggest the pressure gradient will weaken slowly this afternoon
and tonight, which should allow winds to decrease in that area.
In the Juneau area, a Taku wind is occurring downtown and near
Douglas with gusts to 70 mph. These winds should weaken late this
morning and afternoon as cross barrier flow weakens some. Keeping
the HWW going until 18z for the Taku winds. Other areas will
generally have SCA level winds on the inner channels...and 20-25
KT over the outer waters. Will maintain wind chill advisory for
White Pass for this morning as well.

Clouds right now are mostly high and thin. As warm advection
develops in upper levels this afternoon and tonight, thicker high
clouds and some mid-level clouds will move in. As shortwave trof
and weak sfc trof develop tonight, clouds will thicken and lower
over the gulf and far southern area.

Precip potential will be mainly with the weak trof over the gulf
and shortwave trof moving into the SE gulf. Think most of the
precip that develops initially will remain over the gulf, but some
may clip the far S area late tonight as precip begins to expand in
areal coverage.

.LONG TERM...Period begins with an upper trough digging into the
gulf from S central AK. Models in fairly good agreement this
perturbation will move across SE AK into Mon as a surface wave
develops over the gulf. Precip will gradually move into the outer
coast Sun and expand Nwd into the N central gulf by Sun
afternoon/evening, then push E across the panhandle Mon. Enough
cold air will remain over the region for an precip to begin as
snow before warm air advection takes over and changes precip to
rain. Light accumulations expected across most of the area Mon before
N winds diminish and shift to Sly. As this initial WAA works N,
hi-res guidance suggest the potential for some patchy freezing
precip possible, however, areas coverage remains very spotty and
shifts significantly from run to run. The real warming takes hold
Tue as a deep upper low moves to 55N/165W. This will result in
deep SW flow developing across the panhandle with a series of minor
perturbations ejecting across the region. GEFS progs low level
temps warming to about 1-1.5 standard deviations above normal, so
precip type at sea level will be all liquid except for the far N
panhandle. These quick moving systems will have limited moisture
so do not anticipate more than an couple of inches of snow. This
pattern will persist through mid week before models prog a strong
ridge to build over BC and shift W. This ridge is supported well
by ensembles and GEFS shows pretty good predictability so expect
drier weather heading into the weekend. Minor changes to inherited
forecast mainly for adding temporal resolution.

Biggest challenge remains ptype/potential snow amounts with first
wave Mon-Tue. Latest guidance progs the low remaining further
offshore, so colder air may persist longer, but precip amounts
would be be limited.

&&

.AJK Watches/Warnings/Advisories...
PUBLIC...High Wind Warning until 9 AM AKST this morning for AKZ025.
     Strong Wind from 9 AM AKST this morning through this afternoon
     for AKZ025.
     Wind Chill Advisory until 9 AM AKST this morning for AKZ018.
MARINE...Heavy Freezing Spray Warning for PKZ031.
     Heavy Freezing Spray Warning for PKZ011-012.
     Heavy Freezing Spray Warning for PKZ013.
     Storm Warning for PKZ012.
     Gale Warning for PKZ013-031.
     Small Craft Advisory for PKZ011-021-022-032>036-041>043.
     Small Craft Advisory due to Seas for PKZ051.
&&

BC/RWT

Visit us at http://www.weather.gov/Juneau

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JUNEAU AK
1019 AM AKST SAT JAN 21 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 AM     NON-TSTM WND GST 1 NNE DOUGLAS           58.29N 134.39W
01/21/2017  M84.00 MPH                          AK   MESONET

            PEAK WIND 84 MPH MEASURED AT MARINE EXCHANGE AML DOCK.

0651 AM     NON-TSTM WND GST 1 NNE DOUGLAS           58.29N 134.38W
01/21/2017  M84.00 MPH                          AK   MESONET

            PEAK WIND 84 MPH MEASURED AT ALASKA MARINE EXCHANGE AJ
            DOCK.

0930 AM     NON-TSTM WND GST JUNEAU                  58.30N 134.41W
01/21/2017  M51.00 MPH                          AK   MESONET

            PEAK WIND 51 MPH MEASURED AT JUNEAU FEDERAL BUILDING
            ROOF.

&&

TPA