Area Forecast Discussion
Issued by NWS Fairbanks, AK
FXAK69 PAFG 052215
Northern Alaska Forecast Discussion
National Weather Service Fairbanks AK
115 PM AKST Mon Dec 5 2016
Models in good agreement through 60 hours with upper level
features and movements. Upper high over Barrow will persist
through Wednesday night. Large upper level ridge from well south
of he Aleutians spreading north to Banks Island and then northeast
into the Canadian Archipelago by Tuesday night. High becomes a
Rex block for the most part by Friday.
The upper high will settle back down out of the High Arctic after
the building of the upper level ridge which shoved the center of
the high well north.
Occluded front right near Saint Lawrence Island will continue to
die in place. The winds are diminishing over the area and near
blizzard conditions have ended.
Upper level long wave trough over southeastern mainland Alaska
will persist through most of the week.
A weak Tanana Vally jet has set up in various locations in eastern
Alaska. Lower level mixing is occurring in various locations even
where winds are not reaching the ground level. Temperatures are
varying up to 30 degrees between locations within a very short
distance today and will likely continue through much of the week
with the high pressure locked in over northeastern Alaska and the
low pressure over the Gulf of Alaska.
The Arctic Coast and the West Coast for the most part will have
only higher clouds for the next several days. There will be a
pinch in the gradient with a surface trough near the far eastern
portion of the Arctic Coast. This will be the premise for a brisk
wind over that area.
Coastal Hazard Potential Days 3 and 4...None.
Heavy Freezing Spray Warning for PKZ210-PKZ220-PKZ225-PKZ230.
Small Craft Advisory for PKZ220-PKZ225.
Brisk Wind Advisory for PKZ245.