Alaska Extended Forecast Discussion
National Weather Service College Park MD
521 PM EDT Sun Jun 7 2026

Valid 12Z Thu 11 Jun 2026 - 12Z Mon 15 Jun 2026


...Guidance Evaluation/Preferences...

Guidance solution clustering remains better than normal through 
medium-range time scales, bolstering forecast confidence. A 
favored model/ensemble mean/machine learning blend offers a solid
forecast basis that tends to mitigate many of the lingering 
smaller scale system differences as consistent with individual 
predictability. This plan maintains good WPC product continuity. 

...Weather/Hazards Highlights...

A slow moving and persistent Arctic Ocean closed upper low/trough
will dominate the far north in contrast to a continuing pattern 
with a series of mid- latitude cyclones slowly tracking east- 
northeast across the North Pacific to the south of the state 
through the medium- range forecast period. Much of Mainland Alaska
will be sandwiched in between these two synoptic regimes. 

Impulse energy/light snows working underneath the main Arctic low
may periodically work down toward an initially cooled North Slope
early in this pattern. However, a warming trend for the northern 
Mainland will also support more above normal temperatures across 
western Alaska and the Interior this period.

Meanwhile, expect periods of light to moderate rain/showers 
across the southern portion of the state with energies wrapping 
around the northern periphery of Pacific cyclones. There is a
growing signal for an emerging heavy rainfall threat heading into
next weekend with wrapping moisture/enhanced inflow from SouthCentral
Alaska back to Kodiak Island/vicinity with proximity to a slow to
lift/stalling Gulf of Alaska low and deepened triple-point low.

Schichtel


Additional 3-7 Day Hazard Information can be found on the WPC 
medium range hazards outlook chart at:
https://www.wpc.ncep.noaa.gov/threats/threats.php

WPC medium range Alaskan products including 500mb, surface
fronts/pressures progs and sensible weather grids can also be
found at:

https://www.wpc.ncep.noaa.gov/alaska/ak_5dayfcst500_wbg.gif
https://www.wpc.ncep.noaa.gov/alaska/akmedr.shtml
https://www.wpc.ncep.noaa.gov/alaska/ak_5km_gridsbody.html