Scientific Forecaster Discussion

Return to Local Conditions & Forecast

Without Abbreviations
With Abbreviations

Area forecast discussion 
National Weather Service Spokane Washington
1032 PM PDT Sat Aug 29 2015

Synopsis...
look for the wind to decrease early this evening as our fast
moving cold front moves out of the inland northwest. A vigorous
upper level disturbance will bring the inland northwest some much
needed rain on Sunday. Area wildfires will have a good chance of a
tenth to a quarter inch of rain. A cool and moist weather pattern
is expected much of next week.



&&

Discussion...
evening update to allow the remaining red flag warnings and wind
advisories to expire as winds diminish and relative humidity is
recovering. South to southwest winds will remain breezy across
the area with occasional gusts of 25 to 35 mph possible this
evening but advisory criteria winds are no longer expected.
Visibility has also improved across the region as gusty winds
diminish and will no longer loft the dust into the air. Most of
the showers that followed the frontal passage have moved off into
Montana this evening, but another batch of precipitation is
affecting western Washington and the Cascade crest. This is associated
with the upper trough that will pivot across the region later
tonight and Sunday. More showers will be on the way overnight
along with a slight chance of thunderstorms under the cold pool
aloft. These showers should bring a better chance of wetting rains
to area wildfires. Areas of smoke will pool in some of the
valleys tonight as the inversion sets up but any showers will help
to limit this. /Kelch

&&

Aviation...
06z tafs: a narrow band of showers and isolated thunderstorms
will track in the vicinity of klws through 08z. A more substantial
area of showers will continue to slowly push east of the Cascade
crest tonight, moving across eastern Washington and north Idaho overnight and
Sunday as an upper level trough pivots across the region over the
next 24 hours. Winds have diminished this evening but will
increase and start to become gusty again after 15z Sunday morning.
All taf sites will likely be affected by -shra at some point with
the most likely time period between 14z- 20z with the passage of
the cold pool aloft. Confidence is low that any taf site will see
thunderstorms but the more favorable site is kcoe after 18z
Sunday. Smoke may again affect the region if area wildfires flare
up again but confidence remains low on timing and location of
smoke plumes. Gusty afternoon winds will diminish after sunset
Sunday. /Ek




&&

Preliminary point temps/pops...
Spokane 53 66 51 70 53 72 / 20 80 10 20 10 10
Coeur D'Alene 52 63 49 70 51 72 / 20 80 10 20 10 10
Pullman 52 65 49 73 51 73 / 20 60 10 10 0 10
Lewiston 58 72 54 81 57 81 / 20 70 10 10 10 10
Colville 51 68 50 71 50 72 / 30 90 10 30 20 30
Sandpoint 50 61 48 67 49 70 / 20 90 20 30 10 20
Kellogg 49 60 46 70 48 73 / 30 90 20 20 10 10
Moses Lake 55 75 54 77 55 77 / 40 80 10 10 10 20
Wenatchee 56 74 54 75 55 75 / 70 40 10 10 10 20
Omak 52 74 51 74 51 74 / 70 50 10 20 20 30

&&

Otx watches/warnings/advisories...
Idaho...none.
Washington...none.
&&

$$

National Weather Service Glossary of Abbreviations