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Area forecast discussion 
National Weather Service Spokane Washington
922 PM PDT Sat Aug 1 2015

Synopsis....
expect a very hot weekend with afternoon temperatures in the mid
90s to near 105. The ongoing drought combined with high heat and
low humidity will raise concerns for wildfires the next several
days. A cold front will bring temperatures back closer to average
on Tuesday. Temperatures Wednesday through Friday will likely be
at or below average.

&&

Discussion...
update: overall a quiet night in place with an upper ridge
persisting over the region. Main story is the area wildfires which
has contributed quite a smoke to several areas across central and
eastern Washington into north Idaho. The biggest
fire...Wolverine...near Lake Chelan has been putting up the
largest amount of smoke while other fires near Ione and earlier
near Sprague have also been a contributor. With the fires near
Lake Chelan and Ione still burning active as of 9 PM per evidence
from satellite and/or radar with an inversion setting in...there
will likely be quite a bit of smoke around the area tonight.
Forecast has been updated to increase coverage of smoke
tonight...as well as around the Moses Lake, Ephrata, and southern
Okanogan Valley areas for Sunday. Jw

&&

Aviation...
00z tafs: a large plume of elevated smoke will continue to track
towards Grand Coulee, Spokane, and Coeur D'Alene areas tonight
but prevailing surface visibilities should remain VFR...although a
fire near Sprague could track smoke up towards kgeg/ksff/kcoe. As
the inversions sets in...lower level smoke will increase around
Chelan, with the bluesky model keeping this smoke east of keat
again...but impacting kmwh overnight into Sunday morning.
Confidence is not high concerning timing of MVFR visibility as
kmwh...so went with a compromise between timing of bluesky model
and persistance. Some improvement is expected Sunday afternoon at
kmwh as surface winds switch from north-northwest to SW. Jw

&&

Preliminary point temps/pops...
Spokane 63 97 70 94 67 87 / 0 0 0 10 10 10
Coeur D'Alene 58 96 63 94 64 87 / 0 0 0 10 10 20
Pullman 56 97 62 92 60 87 / 0 0 0 10 10 10
Lewiston 66 103 72 98 69 95 / 0 0 10 10 20 10
Colville 56 99 62 95 62 89 / 0 0 0 10 10 20
Sandpoint 50 95 58 91 60 85 / 0 0 0 10 20 20
Kellogg 58 95 58 94 61 85 / 0 0 0 10 20 20
Moses Lake 59 99 69 97 64 93 / 0 0 0 10 0 0
Wenatchee 68 98 76 96 70 91 / 0 0 10 10 10 0
Omak 60 100 70 98 64 92 / 0 0 0 10 10 10

&&

Otx watches/warnings/advisories...
Idaho...heat advisory until 8 PM PDT Sunday for Lewiston area.

Washington... heat advisory until 8 PM PDT Sunday for lower Garfield and
Asotin counties.

&&

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