Strong Wind in Washington, October 25, 2014

Area Forecast Discussion
National Weather Service Spokane WA
1037 PM PDT SAT OCT 25 2014

.SYNOPSIS...
Tonight into Sunday will be quite windy as a strong low pressure
system brings rain and gusty conditions to the Inland Northwest.
The weather will be relatively quiet on Monday before a moisture
laden storm system brings more widespread rain on Tuesday.
A mild autumn pattern is expected to return Wednesday and Thursday
with the potential of wet weather returning Friday into the
weekend.

&&

.DISCUSSION...
A cold upper level trough is moving inland with the trough cusp
dynamics swinging into the Inland Northwest. This is allowing
scattered showers to continue across the forecast area with the
focus along the Cascade crest and the northeast zones tonight. The
associated surface low is presently over southwest British
Columbia with a strong surface pressure gradient building over the
Inland Northwest. Winds have been increasing with gusts of 35 to
40 kts with some of the windy spots occasionally higher. The wind
advisory is verifying nicely but we will have to keep an eye on a
few areas that may need to be added to the advisory. The pressure
gradient will tighten across the northeast as the surface low
tracks east. The Purcell Trench will see winds increasing
overnight and may flirt with advisory criteria. Winds will
diminish a bit around sunrise but gusts will increase again
Sunday afternoon in the unstable post frontal air mass. /Kelch

&&

.AVIATION...
06z TAFs: Scattered showers will continue to affect the mountains
of NE WA, the NE Blue Mts and Idaho panhandle mts tonight. South
to southwest winds have increased and will continue to gust at 30
to 40 kts. The winds should decrease slightly by early Sunday
morning but will increase and become gusty again after 18Z Sunday.
The surface pressure gradient between a deep low over southern BC
and a high to our south will gradually slacken late Sunday with
winds diminishing to around 12 to 15 kts by 02Z Monday. /EK

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        44  53  35  50  39  49 /  70  20  20   0  20  80
Coeur d'Alene  43  52  34  48  36  49 /  70  40  30  10  20  80
Pullman        43  53  35  52  39  51 /  60  30  30  10  20  70
Lewiston       48  59  40  55  40  56 /  60  30  30  10  10  50
Colville       44  53  32  52  38  48 /  80  30  10   0  30  80
Sandpoint      42  49  33  48  34  47 / 100  90  20  10  20  80
Kellogg        42  45  34  45  33  43 /  90  50  50  20  20  80
Moses Lake     45  60  33  55  42  54 /  50  10   0   0  50  60
Wenatchee      45  59  39  55  43  54 /  20  10   0   0  50  60
Omak           42  56  33  52  39  50 /  60  20   0   0  50  60

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Wind Advisory until 3 PM PDT Sunday for Lower Garfield and
     Asotin Counties-Spokane Area-Upper Columbia Basin-
     Washington Palouse.

&&