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000
FXAK69 PAFG 231128
AFDAFG

Northern Alaska Forecast Discussion
National Weather Service Fairbanks AK
328 AM AKDT Tue Apr 23 2024

.SYNOPSIS...
A weather system will approach the west coast on Tuesday and will
bring strong winds, snow and blowing snow to Saint Lawrence
Island on Tuesday. Unsettled weather will continue into Thursday
for the west coast. High pressure will continue to dominate the
Interior through much of the week.



&&

.DISCUSSION...
A 495 dam upper level low over the western Bering will begin to
impact the west coast Tuesday into Thursday weakening to 515 dam
by Thursday and dropping south across the Aleutians on Friday.
Ridging will rebuild over the Interior Tue through Thursday. Cold
850 temps will remain over the north slope through Tuesday.

West coast...Another front will approach the west coast Tuesday
into Wed producing strong winds, snow and blowing snow with low
visibility to Saint Lawrence Island on Tuesday. A Winter Weather
Advisory has been issued. Mixed precip expected across the Seward
Penn and south along the Yukon Delta Coast. Rain/snow showers
will likely continue over the west coast due to upper level
low over the Bering.

Interior...Slightly cooler highs expected through Tuesday. Highs
in the mid to upper 50s over most areas of the Interior. Warming
back to 60 by Wednesday. A chance of isolated showers around the
Interior Tuesday morning, then high pressure builds back over the
area Tuesday afternoon into Thursday.

North slope...A weak front will bring scattered snow showers to
the north slope and Brooks Range today. Light snow accumulations
expected. High pressure will build back over the area Wed and
Thursday. High Temps will warm back up to near 20 above Tuesday
through Thursday.

Extended Forecast Days 4-7...High pressure will dominate the
Interior through much of the week. West coast will remain
unsettled with an upper level low remaining over the Southern
Bering and spinning shortwaves across the west coast Tuesday
through Thursday before moving south across the Central Aleautians
on Friday. Models begin to diverge later next weekend and early
next week. GFS has the upper high hanging on over the Interior
while the ECMWF has an upper level low dropping out of the Arctic.
Leaning towards the GFS solution.

Coastal Hazard Potential Days 3 and 4...None.



&&

.AFG WATCHES/WARNINGS/ADVISORIES...
AK...Winter Weather Advisory for AKZ827.
PK...Brisk Wind Advisory for PKZ801-817-854.
     Brisk Wind Advisory for PKZ802.
     Brisk Wind Advisory for PKZ805.
     Gale Warning for PKZ816.
     Gale Warning for PKZ850.
     Gale Warning for PKZ851.
     Brisk Wind Advisory for PKZ852.
     Brisk Wind Advisory for PKZ853.
&&

$$