Saturday, November18, 2017 L-36.com


Marine Weather and Tides
Oakesdale, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:55AMSunset 4:12PM Saturday November 18, 2017 11:31 AM PST (19:31 UTC) Moonrise 7:52AMMoonset 5:51PM Illumination 0% Phase: New Moon; Moon at 29 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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7 Day Forecast for Marine Location Near Oakesdale, WA
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location: 47.08, -117.23     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 181721
afdotx
area forecast discussion
national weather service spokane wa
issued by national weather service pendleton or
920 am pst Sat nov 18 2017

Synopsis
Dry conditions and seasonable temperatures will prevail today and
tonight. Precipitation chances will increase Sunday afternoon
into Sunday night. Moderate to heavy mountain snow is expected
Sunday night over the cascades and Monday in the idaho panhandle
mountains. A mild and wet storm system Tuesday into Wednesday will
bring another round of rain to the region.

Discussion A low amplitude mid upper ridge will cross the
region today, flattening out tonight into early Sunday. Expect
dry conditions and seasonable temperatures area wide under this
regime. No significant changes to the ongoing forecast is
expected through tonight.

For Sunday through Monday night... A gulf of alaska trough will
dig off the bc coast, with a significant shortwave trough entering
the area late Sunday, exiting into western mt by Monday night.

Initial precip will move into the cascades early Sunday,
gradually spreading east into the columbia basin Sunday
afternoon evening, and across southeast wa and the central id
panhandle Sunday night. A deep moist flow will result in a
sustained period of precip for all areas Sunday night into Monday.

Storm total liquid amounts will range from 0.75 to 1.50 inches
for the east slopes of the cascades and the central northern id
panhandle mountains, to 0.25 to 0.50 inches for the foothills, and
0.10 to 0.25 inches for the columbia basin. Significant mountain
snows will be possible down to pass levels and will monitor for
winter weather highlights.

Monday night through Friday... Storm system responsible for the
wet and snowy weather Sunday night Monday moves treks away to the
southeast and in turn its connection to subtropical moisture makes
a similar exit away from the area. The situation gets a bit
complicated however due to model differences as the GFS allows for
a distinct 12 hour or so break due to transient shortwave ridging
while the more favored ECMWF passes yet another disturbance
through the area. Will continue the strategy utilized in the
previous forecast by utilizing a blend of the two which will focus
the higher pops primarily over the southern portion of the
forecast area Monday night. A well maintained significant
subtropical moisture feed off the coast gets better resolved
Tuesday and by Tuesday afternoon there are hints from earlier
models that the tip of the moisture stream may make enough
progress eastward to stream moisture northeast and over the north
cascades and some distance into the columbia basin and okanogan
highlands. The plume has a good north to south orientation to it
such that by Tuesday night into Wednesday there will be minimal to
no downsloping effect in the lee of the cascades when a low
pressure system tied into the plume passes through. This will
result in substantial precipitation with very high snow levels (as
high as 7-9 thousand feet msl) and warm temperatures. This warm
wet rainfall will aid in compacting the mountain snow at higher
elevations and may work to erode a good amount of it from about
4500 feet msl and below. In fact the seven day temperature
forecast should peak with Wednesdays high temperature. The rain
and the resulting mountain runoff is likely to result in higher
streamflow Wednesday and Thursday but there is enough snow in the
mountains to absorb a significant quantity of the snow and slow
the runoff to just result in a slight bump in terms of streamflow
increase but nothing to suggest any main stem river flooding. Pops
remain somewhat high for Wednesday night into Thursday as there
models hint at additional disturbances digging into the weakening
remnants of the plume remaining off the coast but going with the
idea that the moisture plume is pretty much worn out at this point
in time the expectation is some slight cooling and lowering of
snow levels should take place. Will show a further decrease in
pops coupled with some warming for Thursday night into Friday as
models hint at disturbances digging southward in the large
offshore trof that could further interrupt divert any moisture
stream positioned between the large offshore trof and narrow
inland ridging which would limit the moisture any disturbances
passing through eastern washington and northern idaho would have
to work with.

Aviation 18z tafs: a flat ridge will persist through Sunday with
abundant mid and high level clouds passing through the region. Areas
of MVFR conditions due to stratus are dissipating this morning. Dc

Preliminary point temps pops
Spokane 43 30 44 36 44 34 0 0 20 90 40 30
coeur d'alene 41 30 43 35 42 33 0 0 20 90 50 30
pullman 44 32 47 36 46 37 0 0 10 100 60 40
lewiston 49 32 50 40 51 39 0 0 10 90 60 40
colville 39 28 40 33 41 32 0 10 50 100 50 20
sandpoint 39 27 41 34 39 30 10 0 20 100 60 30
kellogg 38 26 42 32 39 33 10 0 10 100 80 40
moses lake 46 29 46 35 48 31 0 0 20 60 10 10
wenatchee 44 31 43 33 45 33 0 0 30 50 10 10
omak 41 30 40 31 42 33 0 10 50 70 10 10

Otx watches warnings advisories
Id... None.

Wa... None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pullman / Moscow Regional Airport, WA23 mi39 minE 710.00 miFair40°F30°F70%1028.8 hPa

Wind History from PUW (wind in knots)
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Last 24hrW19
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1 day agoSW13
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2 days agoE12SE14SE14SE9SE12SE11SE9SE12SE4E5SW5W5CalmSW6NW11W9W10S53SW14SW10SW9SW11SW13

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Spokane, WA (14,3,4,5)
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Ground Weather Radar Station Spokane, WA
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.