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Juneau, Alaska 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Juneau AK
National Weather Service Forecast for: Juneau AK
Issued by: National Weather Service Juneau, AK
Updated: 11:04 am AKST Nov 21, 2024
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 29. Southeast wind around 25 mph, with gusts as high as 45 mph.
Mostly Sunny
Tonight

Tonight: Mostly clear, with a low around 21. Southeast wind around 25 mph becoming northeast after midnight. Winds could gust as high as 40 mph.
Mostly Clear
Friday

Friday: Sunny, with a high near 27. Northeast wind around 25 mph.
Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 21. East wind around 25 mph.
Mostly Clear
Saturday

Saturday: Sunny, with a high near 24. Northeast wind 25 to 30 mph.
Sunny
Saturday
Night
Saturday Night: Mostly clear, with a low around 17.
Mostly Clear
Sunday

Sunday: Sunny, with a high near 26.
Sunny
Sunday
Night
Sunday Night: Partly cloudy, with a low around 22.
Partly Cloudy
Monday

Monday: Mostly sunny, with a high near 29.
Mostly Sunny
Hi 29 °F Lo 21 °F Hi 27 °F Lo 21 °F Hi 24 °F Lo 17 °F Hi 26 °F Lo 22 °F Hi 29 °F

High Wind Warning
 

This Afternoon
 
Mostly sunny, with a high near 29. Southeast wind around 25 mph, with gusts as high as 45 mph.
Tonight
 
Mostly clear, with a low around 21. Southeast wind around 25 mph becoming northeast after midnight. Winds could gust as high as 40 mph.
Friday
 
Sunny, with a high near 27. Northeast wind around 25 mph.
Friday Night
 
Mostly clear, with a low around 21. East wind around 25 mph.
Saturday
 
Sunny, with a high near 24. Northeast wind 25 to 30 mph.
Saturday Night
 
Mostly clear, with a low around 17.
Sunday
 
Sunny, with a high near 26.
Sunday Night
 
Partly cloudy, with a low around 22.
Monday
 
Mostly sunny, with a high near 29.
Monday Night
 
A chance of snow after 3am. Mostly cloudy, with a low around 28.
Tuesday
 
A chance of snow. Mostly cloudy, with a high near 33.
Tuesday Night
 
A chance of snow. Mostly cloudy, with a low around 29.
Wednesday
 
A chance of snow. Partly sunny, with a high near 32.

 

Forecast from NOAA-NWS for Juneau AK.

Weather Forecast Discussion
764
FXAK67 PAJK 211229
AFDAJK

Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
329 AM AKST Thu Nov 21 2024

.SHORT TERM.../Through Thursday/... The forecast remains largely
unchanged, with an ongoing outflow even likely to continue through
the remainder of the week. A broad area of ridging over Alaska
remains entrenched, as a blocking pattern increasingly takes hold
with sharp areas of troughing on either side serving to mitigate
any imminent departure of the ridge. For SE AK, this means that
cold weather, clear skies, and wind look set to continue. The wind
will at least marginally diminish in some areas for much of
Thursday as the pressure gradient weakens somewhat in conjunction
with a decaying low located W of Washington State. However, the
decaying low will be replaced by a new low as cyclogenesis occurs
along the SE periphery of the trough axis, and so expect
wind speeds to begin ramping back up again by Thursday night into
Friday.

Still anticipate windy conditions for many land-based locations,
though think that at least for downtown Juneau and Douglas, wind
gusts will drop below 60 mph beyond early Thursday morning. Only
minimal changes were to made to the forecast - mainly to
temperatures through the current time frame in order to reflect
the (somewhat) warmer conditions caused by turbulent mixing.
Forecaster confidence is above average.

.LONG TERM.../Friday into early next week/... Blocking pattern
developing over the region means that conditions will remain
relatively unchanged through the weekend and into early next week
across the panhandle. High pressure will continue over the
interior, though may shift further east into British Columbia by
the start of next week. This could lead to a slight weakening of
northerly outflow winds, but enhance outflow winds from NE and
easterly oriented valleys and interior passes.

Any chance of precipitation returning to the panhandle rests on the
blocking ridge over the western gulf breaking down. Deterministic
models are attempting to do so, or at least weaken the ridge such
that a short wave can develop in the northern gulf. If this comes to
fruition, snow showers could be expected along the outer coast
sometime Monday into Tuesday with the potential to reach into the
Icy Strait corridor and central panhandle. However, ensembles
guidance are still leaning towards the ridge remaining strong into
early next week. For those looking for more snow, this potential
trough early next week looks to be fairly dry with ensemble
guidance suggesting 24 hr snow totals of 1.5 to 2.5 inches by
Wednesday.

This far out, there is a high confidence in the overall synoptic
pattern with outflow winds continuing and relatively dry conditions
through the weekend. With no significant storms currently showing up
in model guidance in the mid and long range, the blocking ridge
could be around for a while, which means generally below normal
temperatures and continuing dry conditions potentially into the
Thanksgiving holiday.

&&

.AVIATION...VFR SKC with outflow winds continuing. LLWS and
turbulence through the morning before winds at ridgetop diminish
for a few hours. Expect elevated NE winds at ridgetop to return
Friday.

&&

.MARINE...Gale force outflow winds through northern inner
channels and interior passes/river valleys for the northeast gulf
coast, and out of Cross sound. With the persistent winds in Lynn
Canal and down Chatham Strait, have enhanced seas through
Thursday. Winds diminish a bit on Thursday for some of the inner
channels before intensifying again late Thursday night into
Friday.

&&

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Strong Wind through this afternoon for AKZ318.
     Strong Wind until 6 AM AKST early this morning for AKZ319.
     High Wind Warning until 6 AM AKST early this morning for AKZ325.
     Strong Wind from 6 AM this morning to noon AKST today for AKZ325.
MARINE...Gale Warning for PKZ012-013-031-644.
     Small Craft Advisory for PKZ011-022-032>036-641>643-651-652-
     661>664-671-672.

&&

$$

SHORT TERM...GFS
LONG TERM....STJ
AVIATION...GJS
MARINE...GFS
HYDROLOGY...99

Visit us at http://www.weather.gov/Juneau
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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