Area Forecast Discussion
Issued by NWS Spokane, WA

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FXUS66 KOTX 060352
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
852 PM PDT TUE MAY 5 2015

.SYNOPSIS...
A low pressure system will result in afternoon convection once
again on Wednesday...mainly over the Cascades and Okanogan Highlands.
The weather will generally be dry and warm through the end of the
workweek, except for a small chance of mountain showers over the
Idaho Panhandle. Temperatures will moderate a bit by the weekend
as another weak disturbance approaches the coast. This feature
will likely pass into the area early next week with a return to
cooler temperatures and a chance of precipitation.


&&

.DISCUSSION...
Isolated showers continue across the Cascade crest and northeast
mountains this evening. There are also a few light returns showing
up on radar across the lower basin but these are likely not
reaching the ground as the 00Z OTX RAOB shows a rather dry sub-
cloud layer. The upper low pressure center is starting to drift
south but the best forcing remains over the Cascades. This is
where any continued shower activity will remain overnight.
Convective showers will likely blossom again Wednesday afternoon
under the cold pool aloft and there remains a slight chance of
thunder but little convection developed today and instability
won`t be much stronger tomorrow. Minor adjustments were made to
the current forecast package but no major changes made for this
update. /Kelch

&&

.AVIATION...
00Z TAFS: An upper level low pressure system will slowly move
into northwest WA tonight. The TAF sites will generally see flat
cumulus diminish after sunset. Best chance for showers this
evening and overnight will be across the Cascade Mtns and Okanogan
Highlands. There is also a chance for thunderstorms across these
areas during the afternoon/evening hours today and Wednesday,mainly
near the Canadian border. Winds will be breezy with gusts between
20-30 kts through the early evening, diminishing tonight, then
kicking up again Wednesday after 17Z. /EK



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        35  60  39  68  42  71 /  10  20  10  10   0  20
Coeur d`Alene  34  61  37  67  40  69 /  10  20  10  10   0  20
Pullman        32  59  37  67  37  69 /  10  10   0  10  10  20
Lewiston       38  65  42  72  45  74 /  10  10  10  10  10  10
Colville       34  64  38  71  41  74 /  10  30  20   0   0  20
Sandpoint      31  60  34  67  35  67 /  10  20  10  10   0  20
Kellogg        35  59  37  65  37  67 /  10  10  10  10  10  20
Moses Lake     36  66  40  74  45  78 /  10  20  10   0   0  10
Wenatchee      41  64  44  75  47  78 /  10  30  20   0   0  10
Omak           35  65  38  72  42  76 /  10  30  20   0   0  10

&&

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

$$



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