Area Forecast Discussion
Issued by NWS Spokane, WA

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FXUS66 KOTX 180351
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
850 PM PDT WED SEP 17 2014

.SYNOPSIS...
A weak cold front will move through Washington and Idaho on
Thursday. The front will push temperatures closer to normal and
bring the potential for widely scattered showers on Thursday. A
high pressure ridge will return Friday and promote warm and dry
weather through the weekend.


&&

.DISCUSSION...
Evening update: tracking a jet streaking coming up through
CA/southern OR and projected to advance toward northeast
OR/southeast WA/central ID late overnight into Thursday morning.
Both the HRRR and NAM Hi-Res have been indicating some shower
threat expanding up through south-central/eastern OR and southern
ID the Blues/Camas Prairie and Central Panhandle between 09Z and
15 or 18Z Thursday (late overnight into Thursday morning). Some
guidance suggest perhaps as far northwest as the Pullman area, but
confidence is not great enough to go that far north. I wouldn`t be
surprised to see some sprinkles that far north though. Overall I
increased PoPs and sky cover over southeast WA through the central
Panhandle. I kept some mention of smoke in that region through
early overnight before the potential shower threat will less than
threat. But this will continue to be assessed. Otherwise the
forecast looks on track and overall the precipitation that comes
with this system still does not look overwhelming. /J. Cote`

&&

.AVIATION...
00Z TAFS: A moist southwest flow and approaching cold front/upper
trough will impact the Inland NW over the next 24 or so hours. The
system appears to stretch and split moving inland, but will still
provide some increased cloud cover and the threat of a few
showers. The best shower chances will be near the Cascades,
including EAT, and over the northeast mountains going into later
tonight into Thursday. There is a small threat near the GEG to COE
and PUW/LWS sites, but the risk is still low to mention in the
TAF. There is also the potential for a few thunderstorms across
the NE MTNS of WA and north ID, but the risk for this is also low.
As the front pushes through look for increased winds Thursday
afternoon, with gusts in the 20 to 25kt range. Lastly, smoke from
nearby wildfires will locally reduce visibilities to MVFR
conditions near PUW/LWS this evening, possibly into the morning,
but guidance suggests its intensity wanes over Wednesday evening.
/J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        58  80  56  76  51  80 /   0  20  10  10   0   0
Coeur d`Alene  55  80  55  76  50  80 /   0  20  20  10   0   0
Pullman        53  80  53  76  49  81 /   0  20  10   0   0   0
Lewiston       60  86  59  82  56  86 /   0  20  10   0   0   0
Colville       53  81  51  80  47  83 /  10  30  20  10   0   0
Sandpoint      49  75  51  73  46  76 /   0  30  30  10  10   0
Kellogg        55  77  53  72  50  78 /  10  30  20  10   0   0
Moses Lake     58  83  56  84  52  86 /  10  10  10   0   0   0
Wenatchee      64  82  61  83  58  84 /  20  20  10   0   0   0
Omak           58  82  55  82  49  85 /  20  30  20   0   0   0

&&

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

$$



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