Friday, January19, 2018 L-36.com


Marine Weather and Tides
Metaline Falls, 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 8:27AMSunset 5:20PM Friday January 19, 2018 4:21 PM MST (23:21 UTC) Moonrise 10:01AMMoonset 8:18PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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 Metaline Falls, WA
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location: 49.49, -117.29     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 192224
afdotx
area forecast discussion
national weather service spokane wa
224 pm pst Fri jan 19 2018

Synopsis
A slightly cooler but still very moist maritime air mass will
allow snow to return on area mountain passes and some minor
accumulations in the valleys as well this weekend. An active
weather pattern will continue into next week with light to
moderate snow possible Sunday into Monday and again Tuesday into
Wednesday.

Discussion
Tonight through Saturday night... Satellite shows a mid level wave
over vancouver island and NW washington this afternoon. This will
track east tonight reaching central washington this evening and
then NE washington and N idaho overnight into Saturday morning.

Weak lift combined with west-southwest upslope winds will focus
the best chances for precipitation into the cascades crest and
mountains of NE washington and N idaho. Mid level westerly flow
should keep the wenatchee area and most of the columbia basin dry.

Precipitation type with this system will be mainly snow with wet
bulb temperatures near or below freezing this afternoon. Although
a bit milder temps in lower portions of spokane today (lower 40s)
and wet bulb temps above freezing may result in a rain snow mix
overnight with the best chances for light accumulations above 2000
feet. Saturday afternoon evening the upper trough passes overhead
across NE wa N idaho keeping showers going in the form of valley
rain snow with snow in the mountains. Snow accumulations in the
valleys of NE washington and N idaho will generally range from 1
to 2 inches through Saturday morning with 3 to 6 inches in the
mountains into Saturday evening. A brief short wave ridge noses in
Saturday night ahead of the next weather system. Jw
Sunday through Monday night... An unsettled weather pattern is
expected through the week. A robust storm is expected Sunday,
exiting to the east on Monday. Model guidance is still showing the
moisture with this disturbance is well above normal, but each
model run has been coming in slightly drier. We still expect
widespread light to moderate precipitation. Southeast-south
surface to 850 winds will overcome the typical cascade shadow
effect through the day Sunday. Snow type will be a bit of a
challenge. Cooler air will bank up against the terrain surrounding
the columbia basin and the palouse. Meanwhile a surge of warm air
will move north through the eastern basin, and the palouse. So
the precipitation for the eastern basin and the palouse will start
out as snow or a rain snow mix and turn over to rain Sunday
morning. For the remainder of the area precipitation will be as
snow. The challenges is the area between highway 26 and highway 2
where we could easily bust the forecast. Guidance shows the
rain snow line up to about highway 2 or maybe a little further
north. But if temperatures are off by a degree or two the
rain snow line could be quite different. Otherwise snow and
locally heavy snow in the mountains will be possible. The
mountains could easily see 4—8 inches of snow, and near a foot
near the cascade crest, the mountain valleys 3-5 inches. The upper
basin and the spokane-coeur d'alene corridor may see 1-3 inches,
but confidence in this is rather low. Southerly winds will be on
the increase through the day Sunday with sustained 10-20 mph and
gusts 15-25 mph.

Tuesday through Friday... A flat ridge will build into the region
behind the trough passage Monday night and Tuesday. Showers will
linger in the mountains and possibly into the palouse and west
plains, otherwise dry and slightly cooler. But the break in the
weather will be brief as another cooler robust weather system will
move into the region Tuesday night and lasts through Thursday. It
is a little early to get into specifics but this storm looks
similar to the Sunday Monday storm, although possibly wetter.

Showers will linger into Friday. Tobin

Aviation
00z tafs: a moist boundary layer along with low level upslope will
result in MVFR stratus over northern wa N idaho this evening with
occasional MVFR CIGS possible for the kgeg ksff kcoe TAF sites.

Vfr conditions should persist this evening at kpuw klws kmwh while
a low ifr stratus deck lingers at keat. The next weather system
moves in overnight into Saturday morning producing -sn over ne
wa N idaho with lowering CIGS and visibilities. A moist boundary
layer lingers into Saturday with an abundance of stratus expected
with ifr CIGS gradually rising to MVFR. Kpuw will be on edge of
the highest boundary layer moisture but may see MVFR conditions
Saturday morning.

Preliminary point temps pops
Spokane 31 38 28 37 29 37 50 30 10 30 100 20
coeur d'alene 32 39 28 36 30 36 60 60 40 20 100 30
pullman 33 39 29 39 32 39 30 30 20 20 80 20
lewiston 35 45 31 43 33 44 10 10 10 20 50 10
colville 30 38 28 35 28 36 60 30 20 60 100 20
sandpoint 31 38 29 35 31 35 70 70 40 20 100 50
kellogg 29 37 27 34 29 34 60 70 60 20 90 50
moses lake 33 45 30 41 30 42 20 10 10 80 40 10
wenatchee 32 42 28 34 27 37 10 10 20 80 30 10
omak 31 37 26 35 25 35 30 10 30 100 70 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
Boundary County Airport, ID75 mi51 minSW 710.00 miOvercast37°F28°F70%1010.8 hPa

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Last 24hrSW3SW4CalmSW6CalmCalmCalmCalmSW5CalmCalmCalmCalmCalmCalmSW5SW5SW5CalmSW5S9SW6
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1 day agoCalmCalmCalmSE3CalmCalm--S3CalmCalm--CalmSE5S3SE5SE5CalmS3S7SW3CalmSW5SW5SW6
2 days agoS3SW3CalmSE3S4CalmE4N3CalmE4CalmCalmSE3CalmSE3CalmCalmCalmSE3E3CalmCalmCalmCalm

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 (18,4,5,8)
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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.