River Flood Watch 12, NWS Spokane, WA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
829 AM PDT Wed Jun 6 2012

.SYNOPSIS...
Low pressure will remain over the region. The resulting low
pressure pattern will favor numerous weather systems to pass over
the region so below normal temperatures and showery weather will
continue for much of this workweek and into the weekend. Drier and
warmer weather could arrive by early next week.

&&

.DISCUSSION...
Rest of Today...Satellite indicates a moist upper level low
circulation over northwest Montana. Wrap-around moisture from this
feature is producing a persistent area of rain and high elevation
snow across northeast Washington and north Idaho. It appears from
satellite extrapolation and model data that the offending closed
low will slowly migrate northward during the day today...taking
it's moisture with it...but this will be a very slow process.
Thus...any improvement or drying trend will occur on the margin of
the current precipitation shield. The Spokane CDA area and points
south and east will probably experience a slow tapering off of
steady light rain starting around 11am or noon...but the threat of
showers will probably continue through the day. North of this
area including the Northeast Washington Mountains and North Idaho
zone...little or no noticeable drying will occur today with a
general continuation of light rain. Web cameras indicate snow
covered road across Stevens Pass and it is expected that light
snow will probably continue for much of the day...but the road
surface may very well warm up to melt the snow by afternoon. Given
the anomalously late season nature of this winter driving
regime...have opted to issue a focused Winter Weather Advisory
specifically for the pass until 1 pm. Zone forecast and State
Forecast Product have been updated. /Fugazzi

&&

.AVIATION...
12Z TAFS: A band of light to moderate precipitation will pivot
through the Idaho Panhandle and northeast Washington today. Expect
occasional MVFR conditions around KGEG/KSFF/KCOE with the
precipitation, before the band shifts north around 15-18Z Wednesday.
This will leave drier but continued breezy conditions for most TAF
sites. Gusts between 20-30kts will be a threat. However winds should
begin to decrease through the afternoon to early evening as the low
pulls away and the pressure gradients slacken.

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        53  41  67  43  59  41 / 100  10  50  70  30  30
Coeur d'Alene  49  40  69  46  58  43 / 100  10  50  80  40  40
Pullman        55  39  66  44  55  40 /  30   0  40  70  40  40
Lewiston       63  45  73  50  62  47 /  20   0  40  60  30  30
Colville       50  42  70  48  62  45 / 100  20  60  70  50  50
Sandpoint      47  40  67  46  58  42 / 100  30  40  80  70  70
Kellogg        47  41  65  44  54  42 / 100  10  40  80  70  70
Moses Lake     66  46  68  47  64  46 /   0   0  60  50  20  20
Wenatchee      65  48  62  47  62  47 /   0   0  60  30  20  20
Omak           63  41  67  44  64  43 /  20  10  70  60  40  40

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Winter Weather Advisory until 1 PM PDT this afternoon for
     Okanogan Highlands.

&&