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000
FXUS66 KOTX 232121
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
221 PM PDT Mon Apr 23 2018

.SYNOPSIS...
The Inland Northwest will experience high temperatures in the 70s
for the remainder of the work week. Some of our typically warm
lowland spots will have a shot of 80 degrees or more Thursday and
Friday. Cooler and showery weather will likely arrive over the
weekend and linger into early next week.

&&

.DISCUSSION...

Tonight: Cumulus clouds over the mountains of the Idaho Panhandle
will dissipate early this evening with the setting sun. The Inland
Northwest will experience another mainly clear night. Our
typically chilly, sheltered locations in the valleys of northeast
Washington and north Idaho will dip below freezing for a few hours
late tonight, but the majority of the region will remain in the
mid to upper 30s.

Tuesday and Wednesday: Our warming trend will continue Tue into
Wed. Look for high temperatures to be in the 70s both days as high
pressure expands over the Western US. A weak shortwave trough is
progged by the models to dent the ridge on Wed. The most notable
weather this shortwave will produce will be some increasing high
clouds and north winds of 10 to 15 mph down the Okanogan Valley
Wed afternoon and evening. /GKoch

Thursday through Monday: Models are still showing warm and sunny
for Thursday across the region. They disagree starting Friday and
through the weekend with what to do with a cutoff low approaching
northern California. The GFS continues to be consistent with
itself, and the ECMWF is consistent with itself as well. The
Canadian seems to have trended more towards the ECMWF, and have
therefore trended forecast that way as well. We continue to show
Friday as the warmest day and for now have a dry forecast for
Friday and Friday night. Saturday through Monday we bring in a
chance of precipitation, but have lowered the chances for
Saturday. Sunday the EC and Canadian show some wrap around energy
from the closed low digging into California moving up into the
region. So have our highest chance of precipitation Sunday into
early Monday and then begin to dry things out again.

Our warm temperatures will cause snow melt across the mountains.
Rises on local rivers and streams are expected. Many rivers are
currently forecasted to approach flood stage with a few exceeding
that. Please continue to monitor the rivers if you are planning
any outdoor activities this week into next. Water temperatures are
still quite cold and hypothermia can quickly set in. /Nisbet

&&

.AVIATION...
18Z TAFS: Mainly clear skies and light winds will be the rule
across central and eastern Washington as well as north Idaho this
afternoon through Tuesday morning. /GKoch

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  70  45  73  45  75 /   0   0   0   0   0   0
Coeur d`Alene  36  71  42  73  43  74 /   0   0   0   0   0   0
Pullman        33  70  40  72  42  76 /   0   0   0   0   0   0
Lewiston       40  76  47  78  48  80 /   0   0   0   0   0   0
Colville       35  74  40  76  40  77 /   0   0   0   0   0   0
Sandpoint      33  68  37  70  40  73 /   0   0   0   0   0   0
Kellogg        34  69  40  70  41  72 /   0   0   0   0   0   0
Moses Lake     39  76  42  78  45  80 /   0   0   0   0   0   0
Wenatchee      41  73  47  78  49  78 /   0   0   0   0   0   0
Omak           36  74  44  78  45  77 /   0   0   0   0   0   0

&&

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

&&

$$