000
FXUS66 KOTX 010551
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
951 PM PST Sun Feb 28 2021

.SYNOPSIS...
Another weak disturbance Monday into Tuesday could bring very light
snow mostly over the mountains. A warming trend is then expected
from mid to late week with dry conditions Wednesday through
Friday. Next weekend temperatures will cool back to seasonal
normals by the end of the weekend along with a chance of mainly
mountain showers.


&&

.DISCUSSION...
Through Monday night: Tonight, very light snow will continue for
the Panhandle and is expected to shift towards primarily the
northern Panhandle and northeast Washington mountains by tomorrow
morning. Moisture advection from the Southeast brings the chance
of fog and low stratus development tonight and tomorrow morning,
primarily for the northern valleys and Cascade valleys. This may
spill into places such as Wenatchee, the Waterville Plateau, and
the Spokane- CDA corridor. Monday highs are expected to be near
normal with temperatures generally in the mid 40s to lower 50s.
Chances of very light snow increase for the mountains late Monday
into early Tuesday as a weak wave begins to move into the area. RC

Tuesday through Sunday: Models are in good agreement of a weak
wave moving through the region on Tuesday for a chance of light
snow along the Cascade crest and Idaho Panhandle mountains with
conditions remaining dry elsewhere. After this wave passes an
upper trough digs off the coast placing the region in a milder
southwest flow aloft Wednesday through Friday. This will translate
to a warming trend with highs by Friday widespread in the 50s with
some of the warmest spots such as Moses Lake and Lewiston topping
out in the low 60s. For next weekend the offshore trough ejects
inland but there remains timing issues of when resulting in lower
confidence with the Saturday temperatures. Temperatures though
should still trend down especially by Sunday. There is also some
indication that the front could stretch and weaken prior to moving
east of the Cascades and thus should be mainly a light precipitation
producer. JW

&&

.AVIATION...
06Z TAFS: The overall trend has been for clouds to thin out this
evening. Winds have also diminished as we move into a period of
relatively quiet weather. Over the next 36 hours, the challenge
will be whether any MVFR CIGs develop. Some guidance is indicating
a surge of low level moisture moving across southeast WA that may
result in lower CIGs over the Palouse and especially at KPUW
during the morning hours. Outside of some localized lower
ceilings, the trend of improving conditions will continue
resulting in VFR throughout the Inland Northwest until Tuesday.
/AB

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        31  47  32  45  29  50 /   0   0   0   0   0   0
Coeur d`Alene  29  45  32  43  28  48 /  10   0   0   0   0   0
Pullman        28  44  30  44  29  48 /   0   0   0   0   0   0
Lewiston       30  51  35  51  33  53 /   0   0   0  10   0   0
Colville       31  46  30  45  27  46 /  10  10  10   0   0   0
Sandpoint      32  43  33  41  29  45 /  20  10  10  10   0   0
Kellogg        29  43  33  41  30  47 /  10   0  20  10   0   0
Moses Lake     33  53  32  53  29  53 /   0   0   0   0   0   0
Wenatchee      33  52  32  50  29  50 /   0   0   0   0   0   0
Omak           34  47  32  48  28  49 /  10  10  10   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.

&&

$$