Scientific Forecaster Discussion
Northern Alaska forecast discussion
National Weather Service Fairbanks Alaska
217 PM akdt Sat Mar 28 2015
Aloft...models in good agreement with upper level 514 dam low
near Barrow forecasted to slide southwest and be over Seward Penn
by 10 am Monday morning. Long wave trough will remain over the
West Coast through Tuesday. A 510 dam low around 300 nm south of
Kodiak will anchor the upper level trough and slowly rotate
cyclonically around the northwestern Gulf through the weekend and
will be located near Kodiak Island by Sunday. Weak ridging will
linger over the interior with a few ripples of energy moving from
the south to the north on Sunday. Not much precipitation expected from
these weak shortwaves for the interior only middle and upper level
clouds moving across the area.
Surface...broad low pressure will persist over Mainland Alaska
with a weak trough extending into the southern Arctic plain.
976 mb low pressure in the northern Gulf of Alaska will move
inland and weaken on Sunday.
North Slope...upper level low will bring some light snow showers
to the eastern parts of the Brooks range with light snowfall
accumulations through Sunday.
Interior... surface temperatures in the central and southern interior
are expected to remain above normal with daytime temperatures near
50 this afternoon and in the middle to upper 40s the next couple of
days with slight cooling back to seasonal norms by Tuesday. The
snow pack over southern interior continues to wither and will
continue to see slow melting and runoff especially over southerly
exposures during the day. Chinook winds possible in the Alaska
Range but remaining under advisory level through Tuesday.
brisk Wind Advisory for pkz210.