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Area Forecast Discussion
National Weather Service Spokane WA
846 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 Wasington 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
raditational 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...
06Z TAFS: A warm front lifting into eastern WA and north ID will
bring areas of mainly light rain. The band of light rain has
lifted north of all TAF sites. Low level moisture and light winds
behind the warm front will promote low stratus and patchy fog for
KEAT and KMWH through at least 18Z Saturday. Confidence is low
that MVFR cigs may develop at KLWS but light downsloping winds
may keep VFR conditions there. Shower threat develops again
through the afternoon Saturday. This will be accompanied by
increased winds with gusts increasing to 25 to 30 kts after 03Z
Sunday.


12Z TAFS: The warm front lifted north with light rain in most
areas. Now that we are in the warm sector, expected a bit more fog
but the high clouds and breezy conditions are preventing any
widespread fog from developing. The exception is KEAT where a IFR
ceilings persist. This morning we expect conditions to improve
briefly before winds in most TAF locations turn southeast and
eventually southwest. The approaching cold front will bring
widespread rain showers with the very slight chance of
thunderstorms to the eastern sites...not enough of a threat to
include in the TAF. Ceilings and visibilities will remain marginal
to VFR in rain as winds continue to turn southwesterly and very
gusty by late evening. Updates to TAFs at 12z were limited to
adjusting for improved morning ceilings and adding stronger winds
in the last 6 hours.


&&

.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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