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fxus66 kotx 290529 
afdotx

Area forecast discussion
National Weather Service Spokane Washington
1029 PM PDT Wed Jun 28 2017

Synopsis...
lingering showers and a few thunderstorms will move across
northeast Washington and the Idaho Panhandle this evening with
drying conditions and clearing skies late tonight. Beginning
Thursday, the weather will be dry and mild through the remainder
of the week. The weekend will see continued dry weather but warmer
temperatures. Monday and Tuesday have the potential to be dry and
breezy raising concerns for grass fires heading into July fourth.

&&

Discussion...
rest of tonight...satellite shows a short wave dropping out of
Canada and impacting mainly the north and east reaches of the
forecast area with regional radar indicating a mass of mainly
showers over the northeast mountains...north Idaho and the
northeastern Columbia Basin...with a few residual thunderstorms
along the leading edge of the shower mass moving into Montana at
830 PM. The inter-trough vorticity field and cold pool aloft will
promote a only slow decrease in showers overnight under the
trough cusp...however the whole thing will quickly Swale out of
the region Thursday morning.

As the upper trough Hooks south and east...expect a tapering off
of residual showers overnight from north to south...a trend which
is already apparent on radar...with only a few showers remaining
over the high terrain of Idaho by dawn.

Over the western reaches of the forecast area further shower
activity will be sparse...with the main issue being continued
breezy conditions...northwest through the Cascade gaps and
northerly down the Okanogan Valley and out into the western
Columbia Basin. While relative humidities have increased to above
critical values allowing the expiration of the red flag
warning...these winds will continue to aggravate suppression of
the active fires in the deep basin for the rest of the
night...with a good decrease in winds to more manageable
velocities on Thursday.

Evening forecast updates have been published to tweak winds in the
basin and downplay the threat of further thunderstorm activity
over the northeast...although simple showers will continue
through much of the night especially in the Idaho Panhandle.
/Fugazzi

&&

Aviation...
06z tafs: a line of showers with VFR ceilings associated with a
short wave disturbance dropping from north to south through the
region will pass through the kgeg...ksff and kcoe between 06z and
08z with clearing skies soon after. This line will pass through
kpuw and klws between 08z and 10z then move off to the east with
clearing skies by dawn Thursday. The western taf sites will
remain dry. The region will be mainly clear on Thursday but
wildfires near kmwh may affect visibility with fu during the
afternoon and evening hours at kmwh and keat with light winds
preventing efficient dispersion of the smoke plume. /Mjf

&&

Preliminary point temps/pops...
Spokane 56 82 60 87 60 87 / 50 0 0 0 0 0
Coeur D'Alene 52 80 55 85 57 85 / 60 0 0 0 0 10
Pullman 52 78 54 85 57 84 / 40 0 0 0 0 0
Lewiston 58 85 59 93 62 90 / 10 0 0 0 0 0
Colville 51 84 54 88 57 89 / 50 0 0 0 10 20
Sandpoint 48 78 50 83 54 83 / 60 0 0 0 10 10
Kellogg 50 76 53 83 55 82 / 60 10 0 0 0 10
Moses Lake 56 88 59 94 61 92 / 0 0 0 0 0 0
Wenatchee 59 88 63 91 63 89 / 0 0 0 0 0 0
Omak 54 87 57 91 60 91 / 20 0 0 0 10 10

&&

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