High Wind Warning 1, NWS Juneau, AK

534 
WWAK77 PAJK 110532
NPWAJK

URGENT - WEATHER MESSAGE
National Weather Service Juneau AK
832 PM AKST Wed Jan 10 2024

AKZ325-111400-
/O.CON.PAJK.HW.W.0001.240111T0600Z-240111T2100Z/
City and Borough of Juneau-
Including the city of Juneau
832 PM AKST Wed Jan 10 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST THURSDAY...

* WHAT...Northeast winds 15 to 25 mph with gusts up to 65 mph 
  expected.

* WHERE...Downtown Juneau and Douglas.

* WHEN...From 9 PM this evening to noon AKST Thursday.

* IMPACTS...High winds will blow around unsecured objects and 
  may damage property and cause power outages. Travel will be 
  difficult.

* ADDITIONAL DETAILS...A mountain wave will develop in Downtown 
  Juneau. The strongest winds will occur late Wednesday evening 
  through Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure vessels and loose objects that could
be blown around or damaged by the wind.

Report any damage to the National Weather Service by visiting
weather.gov/Juneau/StormReports

&&

$$

233 
WWAK77 PAJK 111342
NPWAJK

URGENT - WEATHER MESSAGE
National Weather Service Juneau AK
442 AM AKST Thu Jan 11 2024

AKZ325-112100-
/O.CON.PAJK.HW.W.0001.000000T0000Z-240111T2100Z/
City and Borough of Juneau-
Including the city of Juneau
442 AM AKST Thu Jan 11 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST TODAY...

* WHAT...Northeast winds 15 to 25 mph with gusts up to 65 mph 
  expected.

* WHERE...Downtown Juneau and Douglas.

* WHEN...Through noon AKST Thursday.

* IMPACTS...High winds will blow around unsecured objects and 
  may damage property and cause power outages. Travel will be 
  difficult.

* ADDITIONAL DETAILS...A mountain wave will develop in Downtown
  Juneau. The strongest winds will occur Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure vessels and loose objects that could
be blown around or damaged by the wind.

Report any damage to the National Weather Service by visiting
weather.gov/Juneau/StormReports

&&

$$

060 
WWAK77 PAJK 112034
NPWAJK

URGENT - WEATHER MESSAGE
National Weather Service Juneau AK
1134 AM AKST Thu Jan 11 2024

AKZ325-112145-
/O.EXP.PAJK.HW.W.0001.000000T0000Z-240111T2100Z/
City and Borough of Juneau-
Including the city of Juneau
1134 AM AKST Thu Jan 11 2024

...HIGH WIND WARNING WILL EXPIRE AT NOON AKST TODAY...

Some breezy conditions will linger through the rest of the day
near downtown Juneau.

$$

Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
525 AM AKST Wed Jan 10 2024

.SHORT TERM...Northerly outflow winds continue unabated as the
pressure and thermal gradient strengthen across the panhandle,
while a ridge across the Gulf keeps SE AK free of precipitation.
Clear skies for most locations will help keep temperatures on the
cooler side through the day, with the low sun angle resulting only
in minor solar heating through the day. Low temperatures
Wednesday night will be colder than the previous night, with
single digit or marginally warmer temperatures expected across
most of the panhandle. A Wind Chill Advisory is in effect for the
Klondike Highway, and wind chills could get as low as -40F
Wednesday night through Thursday morning as winds gust up to 40
mph. A weak low, whose cyclogenesis is largely due to interaction
between the ridge in the Gulf and outflow winds, could bring some
cloud cover to the NE Gulf Coast, but am not expecting anything
significant with this meso low at this time.

Besides the cold weather, the other story is winds. Alongside
breezy conditions for some parts of the panhandle, a High Wind
Watch has been issued for Juneau - particularly Downtown Juneau
and Douglas, from Wednesday evening through Thursday afternoon.
The potential for a mountain wave event exists, and winds could
gust as high as 65 mph. Confidence remains on the lower side in
this event - cross barrier flow remains weaker than ideal. Should
a strong mountain wave develop, the highest wind gusts will occur
between Wednesday evening and Thursday morning.

.LONG TERM.../Thursday to the weekend/ The big story in the
mid range forecast remains the ongoing outflow which will continue
to bring significantly colder temperatures into the weekend. Overall
trend will be for temperatures across the Panhandle to continue
dropping as mentioned in the short  with the lowest temperatures
seen Friday morning with minor warming possible Saturday and more
warming Sunday as high pressure over the Canadian interior weakens
slightly. By Thursday, daytime highs will struggle to reach the low
to mid 20s for central and southern outer coastal communities.
Communities far from the coast will see daytime highs in the teens,
while in the far north higher elevations will be in the single
digits. For Friday and Saturday mornings, majority of the panhandle
will see low temperatures in the single digits, with the far
northern communities (especially at elevation) approaching 0.
With temperatures dropping consistently through Friday, wind chill
will be a factor for any prolonged outdoor activities in areas
that normally see outflow winds. A special weather statement has
been broadcast for this cold outbreak.

Outflow winds will continue into Friday, though should begin to
drop in magnitude as the gradient over the interior begins to
slacken and also become more parallel to the inner channels. With
persistent outflow winds along Lynn Canal, fully developed seas
of up to 9 ft will likely not begin to subside until later in the
day Thursday. Combined with the cold temperatures, freezing spray
remains likely for interior passes and Lynn Canal through Friday.

As expected, guidance is playing catch up in terms of keeping the
ridge in place for longer and pushing the return of precipitation
back, with a front now not expected to make its way to the panhandle
until later in the day Saturday or possibly Sunday. With the cold
air in place over the panhandle, initial precipitation will be snow
with some potential for a transition to mix or rain for the outer
coastal communities.

&&

.AVIATION...VFR conditions continue this morning as some patches of
low clouds hanging around the panhandle while some upper level
clouds move across the area. The biggest concern today is going to
be the turbulence across the region, especially for places that
were listed in the afternoon discussion from yesterday. Most of
this turbulence will likely remain below ridge tops as the outflow
pattern continues. Otherwise, conditions are expected to remain
clear and cold for the TAF period.

&&

.MARINE...Outflow winds will continue as the pressure gradient and
thermal gradient tightens. N Lynn Canal, S Lynn, and Stephens
Passage will see gale to near gale force winds with small craft
winds for most other channels. Expecting long wind fetch to
increase seas from Lynn Canal down Chatham Strait. Arctic air
moving in addition to the increased winds will increase
probability of freezing spray tonight into Wednesday. Heavy
freezing spray expected for Lynn Canal, Stephen's Passage
(particularly in the vicinity of Taku Inlet), and Sumner Strait.

&&

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Wind Chill Advisory until 6 AM AKST Friday for AKZ318.
     Strong Wind from 9 AM AKST this morning through this evening for
     AKZ325.
     High Wind Watch from this evening through Thursday afternoon for
     AKZ325.
MARINE...Heavy Freezing Spray Warning for PKZ012.
     Heavy Freezing Spray Warning for PKZ012.
     Heavy Freezing Spray Warning for PKZ013.
     Heavy Freezing Spray Warning for PKZ031.
     Heavy Freezing Spray Warning for PKZ031.
     Heavy Freezing Spray Warning for PKZ035.
     Gale Warning for PKZ012-013-643-644-651-663-664.
     Small Craft Advisory for PKZ011-021-022-031>036-053-641-642-652-
     661-662-671-672.

&&

SHORT TERM...GFS
LONG TERM....STJ
AVIATION...SF

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

Special Weather Statement
National Weather Service Juneau AK
1059 AM AKST Wed Jan 10 2024

AKZ317-319>332-112100-
City and Borough of Yakutat-Haines Borough and Klukwan-
Glacier Bay-Eastern Chichagof Island-
Cape Fairweather to Lisianski Strait-City and Borough of Sitka-
Admiralty Island-City and Borough of Juneau-Petersburg Borough-
Western Kupreanof Island and Kuiu Island-Prince of Wales Island-
City and Borough of Wrangell-Ketchikan Gateway Borough-
City of Hyder-Annette Island-
Including the cities of Yakutat, Haines, Gustavus, Hoonah,
Tenakee Springs, Elfin Cove, Pelican, Sitka, Angoon, Juneau,
Petersburg, Kake, Port Alexander, Craig, Klawock, Hydaburg,
Coffman Cove, Thorne Bay, Wrangell, Ketchikan, Hyder,
and Metlakatla
1059 AM AKST Wed Jan 10 2024

...VERY COLD TEMPERATURES AND WIND CHILLS THIS WEEK...

The first significant outflow event of this Winter season has
begun for Southeast Alaska. Overnight lows will decrease with
each passing night through at least Thursday night. Early Friday
morning temperatures will range from the middle teens on the
central outer coast to 10 degrees below zero at higher elevations
along the Haines and Klondike Highways. Residents are encouraged
to take precautions early to prevent the freezing and bursting of
vulnerable plumbing both indoors and outdoors. Pets and other
animals normally maintained outdoors should also be attended to
before temperatures become dangerously cold.

In addition to the very cold temperatures, wind chill will become
a hazard as well in those locations that typically experience
windy conditions during outflow events with more northerly
locations experiencing the coldest values. Specifically, interior
passes near the coast mountains, Haines & the Haines Highway, and
downtown Juneau. As with the overnight lows, wind chill values
will become lower with each passing night through at least late
Thursday or early Friday morning. Hazardous and potentially
dangerous wind chills are most likely in more northerly locations
and close to the coast mountains.