Flood in Idaho, May 7 to 11, 2018

Area Forecast Discussion
National Weather Service Spokane WA
909 PM PDT Mon May 7 2018

.SYNOPSIS...
Low pressure will pull away from the region with drier conditions
expected tonight. Another storm system approaches the area and
showers will return by Tuesday night along with cooler
temperatures. As the system moves away and conditions improve
Wednesday night...another low pressure system moves into the
Pacific Northwest with another round of showers expected Thursday
night and Friday. Warmer and drier conditions are forecast this
weekend.

&&

.DISCUSSION...
Showers and thunderstorms have seen a rapid decline through the
evening hours. Mid level instability is declining across the
northeast portion of the region and not enough energy moving
across to sustain showers. We will see cloud cover declining
through the rest of tonight with mostly clear skies. This will
allow the mountain valleys to radiate with patchy fog expected
for Tuesday morning. /SVH

&&

.AVIATION...
00z TAFS: Wraparound moisture from a system over western MT will
continue to bring clouds and a slight chance of showers to GEG SFF
COE PUW LWS through early evening. Skies will generally be VFR
however brief MVFR cigs will be possible should a shower go over one
of the sites. The other locations...EAT and MWH will generally see
clear skies through the night. The big question for later tonight is
will low clouds and fog develop late tonight. Based on wind forecast
and a relatively saturated lower atmosphere, the chances are good
fog and stratus will develop over the NE third of WA and much of the
ID Panhandle, however whether or not it impact a TAF site is
questionable. Best chances for fog/stratus and possible IFR
conditions will be for SFF and GEG, however not confident enough to
put that as a prevailing condition in the forecast. Any which forms
should readily burn off before 19z. fx

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        51  76  54  66  45  58 /  10   0  30  70  10  30
Coeur d'Alene  52  75  54  63  43  58 /  10   0  30  80  10  30
Pullman        49  75  54  65  44  57 /  10   0  30  70   0  20
Lewiston       53  82  59  72  48  64 /  10   0  40  60  10  20
Colville       50  79  54  70  44  60 /  20  10  30  80  10  40
Sandpoint      50  73  52  62  41  56 /  20  10  20  60  10  40
Kellogg        47  72  50  61  40  54 /  10   0  30  60  10  30
Moses Lake     50  79  59  76  46  67 /   0   0  60  50   0  10
Wenatchee      55  78  59  74  47  63 /   0   0  90  50   0  20
Omak           51  76  59  74  45  63 /   0   0  30  80  20  40

&&

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

&&