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219
FXUS66 KOTX 251758
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1058 AM PDT SAT OCT 25 2014

.SYNOPSIS...

A series of systems will pass through the region during the period.
The first system today is expected to bring the threat of isolated
thunderstorms and high winds to the region. Remnants of Hurricane Ana
on Tuesday will deliver widespread rainfall to the Inland
Northwest. Another rain producing system is possible by next
weekend.

&&

.DISCUSSION...
Made a few updates to the forecast this morning based on radar and
satellite trends. The shield of high clouds from the baroclinic
leaf is slowing moving across extreme eastern Washington and
north Idaho. This should give much of the region partly sunny
skies with not much in the way of precipitation for the morning
and web cams show little if any fog. The only exception being in
the Cascade valleys where the high clouds departed early enough
and radiational cooling led to early morning fog. Mild
temperatures are expected as the region remains in the warm sector
for much of the day. The cold front will be slowly approaching
from the southwest and bring a a swath of showers to the Cascades
by midday and spreading eastward through the afternoon. There is a
small chance of embedded thunderstorms with the showers which
could kick up some winds at times./rfox

&&

.AVIATION...
18z TAFs: A shield of high clouds will push east as the frontal
boundary pushes eastward. A few showers will continue to move
across the northern Cascades toward the Okanogan Highlands. Some
prefrontal convection may develop in north Idaho by mid afternoon
with an embedded thunderstorm possible, but the main band of
showers will increase over the Cascades after 22z and push
eastward through the evening. Expect areas of MVFR with the rain.
Winds will veer from east to south with an increase in gustiness
into the evening. The rain should taper off late evening and
overnight as south to southwest winds get stronger with gusts of
30-40kt possible. The winds should decrease slightly by early
Sunday morning. /rfox

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        64  44  52  36  50  38 /  20  70  30  10  10  20
Coeur d`Alene  65  43  52  36  48  34 /  20  70  40  30  20  20
Pullman        69  43  52  37  51  36 /  20  60  30  20  10  10
Lewiston       71  48  58  41  56  40 /   0  60  20  20  10  10
Colville       62  44  53  32  51  35 /  30  80  50  20  10  20
Sandpoint      62  43  49  34  46  33 /  10  80  70  30  20  20
Kellogg        62  42  45  36  43  31 /  10  90  50  50  30  20
Moses Lake     64  46  59  35  55  40 /  20  50  10  10   0  30
Wenatchee      62  43  58  40  56  43 /  30  50  20  10   0  50
Omak           59  41  54  34  52  39 /  60  60  30  10   0  40

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Wind Advisory from 8 PM this evening to 3 PM PDT Sunday for
     Lower Garfield and Asotin Counties-Spokane Area-Upper
     Columbia Basin-Washington Palouse.

&&

$$





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