Area Forecast Discussion
Issued by NWS Spokane, WA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
484
FXUS66 KOTX 060602
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1002 PM PST FRI FEB 5 2016

.SYNOPSIS...
Another frontal system will arrive tonight bringing rain to the
lowlands and snow to the mountains. It will become windy after
midnight tonight with gusts up to 45 mph over southeast
Washington, the Palouse, and West Plains. Dry weather and light
winds will develop on Sunday and continue through mid week as a
strong high pressure system sets up over the region. More active
weather is expected by the end of the work week.


&&

.DISCUSSION...
The cold front is moving across eastern Washington as of 10 pm.
This feature is much weaker than forecast since it dropped much of
its moisture as it crested the Cascades. Stronger downslope flow
has limited the amount of precipitation falling other than the
slopover near the crest. The areal coverage of the Winter Weather
Advisory has been trimmed to exclude some locations away from the
crest. Have opted to keep the advisory going since we are
expecting convergence bands to develop tonight that could bring
periods of locally heavy snow. High resolution models are favoring
the Highway 2-Stevens Pass area. There are scattered radar returns
along the crest but so far the most consolidated bands remain
south of the forecast area closer to I-90/Stampede Pass.

&&

.AVIATION...
06Z TAFS: A cold front is east of KEAT/KMWH at 06Z and will pass
through the eastern TAF sites by 08Z. Ahead and along this front
expect mainly rain showers with possible MVFR ceilings. Ahead of
the front especially over the eastern TAF sites LLWS is expected
after sunset decouples the boundary layer until FROPA. Breezy and
gusty conditions will occur with the FROPA with precipitation
quickly tapering off...except for the Idaho Panhandle and possibly
the KCOE TAF site where upslope post- frontal showers will
continue into the morning hours. Generally decreasing winds and
VFR conditions will prevail during the day Saturday. Once winds
become light after 00Z Sunday...the threat of low stratus and fog
will return. /EK


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        33  40  28  40  30  43 /  70  10   0  10   0   0
Coeur d`Alene  32  40  26  39  30  44 / 100  20  10  10   0   0
Pullman        36  42  30  44  33  48 /  60  10  10  10   0   0
Lewiston       40  50  32  50  35  54 /  20  10  10  10   0   0
Colville       30  39  27  36  29  41 /  60  10   0  10   0   0
Sandpoint      29  39  27  36  29  41 / 100  30  10  10   0   0
Kellogg        32  36  26  37  30  43 / 100  60  10  10   0   0
Moses Lake     32  46  29  43  31  45 /  10   0   0  10   0   0
Wenatchee      29  42  29  38  30  40 /  10  10   0  10   0   0
Omak           30  40  26  34  29  38 /  10   0   0  10   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Winter Weather Advisory until 8 AM PST Saturday for East Slopes
     Northern Cascades.

&&

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.