Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
Sandpoint, ID

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 7:01AMSunset 4:05PM Tuesday November 21, 2017 2:16 AM PST (10:16 UTC) Moonrise 10:41AMMoonset 7:45PM Illumination 7% 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 Sandpoint, ID
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location: 48.28, -116.54     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 210549
afdotx
area forecast discussion
national weather service spokane wa
949 pm pst Mon nov 20 2017

Synopsis
Expect wet and mild weather as a series of storm systems brings
several rounds of precipitation this week. Snow levels will be
quite high Tuesday, Wednesday, and Thursday allowing motorists to
travel over mountain passes on wet pavement. Snow levels will
begin to lower just as travelers are heading home Friday into the
weekend.

Discussion
Evening update: minor updates made to the forecast for tonight and
Tuesday morning. Radar shows showers have dwindled this evening
with an exiting mid level wave into montana with just a few
showers lingering over the central panhandle mountains. In the
wake of this wave an abundance of lower level moisture exists over
ne washington into the north idaho panhandle with an abundance of
stratus. This should keep low temperatures a few degrees warmer
than previously thought in places like colville and sandpoint.

Patchy fog is still expected to gradually develop for the valleys
along the east slopes of the cascades into the columbia basin with
relative humidities near 100 percent and areas of clearing.

Breaks in the stratus are also expected for the spokane area
tonight which may allow patchy fog to develop.

Attention then turns to the next system that will spread
precipitation from west to east into the area on Tuesday. Timing
will reach the east slopes early Tuesday morning. The GFS and
ecmwf suggest snow for the methow valley in the morning changing
to a mix of snow... Sleet... And possible brief freezing rain by
early afternoon and then all rain. Overall confidence is low of
significant impacts from sleet freezing rain as temperatures will
be near the freezing mark. The NAM is faster to bring in the
warmer air aloft with a better chance of freezing rain in and
around the methow valley in the morning. Previous cases have
proven the NAM can be too aggressive with the warm air aloft so
will go with the gfs ECMWF solutions which again supports snow in
the morning for the methow valley. Further south in chelan county
model soundings suggest plain and leavenworth likely just above
freezing with rain... With the mountains starting as snow but
quickly changing to rain with pockets of freezing rain possible.

Again with surface temperatures in the mountains near freezing
confidence is low of significant impacts. Thus... No highlights are
expected at this time. Jw

Aviation
06z tafs: areas of clearing in the columbia basin and spokane area
will promote stratus and patchy fog tonight. Exact restrictions
at any given airport carry low confidence as increasing mid and
high clouds will limit widespread development. A moist laden warm
front lifts into the area after 17z with top- down saturation,
widespread rain at the terminals, and mountain obscrns. There may
be a wintry mix for the cascade east slopes Tuesday morning into
the early afternoon including the methow valley airport. Jw

Preliminary point temps pops
Spokane 34 46 41 53 45 57 0 100 100 70 50 60
coeur d'alene 34 45 40 53 44 56 10 100 100 70 50 70
pullman 37 49 44 56 47 59 0 100 100 70 30 70
lewiston 39 53 46 59 48 62 0 80 80 70 20 50
colville 35 41 36 47 40 53 10 100 100 60 40 70
sandpoint 33 41 37 47 41 52 20 100 100 70 70 90
kellogg 32 42 39 49 43 51 10 100 100 80 40 90
moses lake 33 44 38 52 42 60 0 100 80 60 40 30
wenatchee 33 40 36 48 40 55 10 100 40 60 30 50
omak 33 42 36 47 42 54 0 100 70 50 40 70

Otx watches warnings advisories
Id... None.

Wa... None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sandpoint, Sandpoint Airport, ID2 mi21 minSSE 310.00 miMostly Cloudy37°F37°F100%1021 hPa

Wind History from SZT (wind in knots)
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Last 24hrSW6S6S4SW3SE4CalmCalmN3N4NE4NE5N4N3NE7NE6NE7CalmCalmCalmCalmCalmN3CalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS5S5S5S4S5S5S6S7S5SW5SW6W7
G17
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2 days agoS3SW3SW3SW5SW5W4SW4SW4SW3SW4SW4SW4SW3SW3CalmCalmW3CalmCalmCalmCalmCalmCalmCalm

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 (5,6,7,8)
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Ground Weather Radar Station Spokane, WA
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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.