Sunday, October22, 2017 L-36.com


Marine Weather and Tides
Winthrop, 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 7:30AMSunset 6:00PM Sunday October 22, 2017 3:35 PM PDT (22:35 UTC) Moonrise 9:18AMMoonset 7:00PM Illumination 8% 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 Winthrop, WA
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location: 48.47, -120.18     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 222112
afdotx
area forecast discussion
national weather service spokane wa
212 pm pdt Sun oct 22 2017

Synopsis
After decreasing showers and wind this evening... Mild and dry
conditions will return on Monday and linger through the week. This
may be interrupted briefly by a fast moving weather system on
Wednesday that will bring a shot of moisture and breezy winds,
then conditions will dry out again later in the week.

Discussion
Tonight through Sunday... Model agreement between the latest gfs
and ECMWF models is pretty good and consistent leading to a high
confidence forecast regarding the overall weather pattern for the
next week. A strong upper level ridge will build over the region
tonight through Tuesday night... With a northerly trajectory
shortwave passing through on Wednesday... Followed by another
strong ridge aloft through next weekend.

Tonight will be a period of improvement with only a few lingering
showers along the cascade crest and driving into the idaho
panhandle. Winds will remain breezy and gusty into the
evening... But subside below advisory criteria around sunset with
the wind advisory expiring at 5pm. Moderate winds will continue
overnight in the basin... But the sheltered valleys north of the
basin will become light and variable... Maybe even calm overnight
and with recent rain fall this will promote pockets of fog in many
of the valleys. While overnight lows will generally remain above
freezing... The aforementioned sheltered valleys may dip below
freezing for Monday morning. Monday and Tuesday look like pleasant
and mild dry autumn days with little weather to speak of other
than repeated patchy morning fog.

For Wednesday a short wave trough will drop out of british
columbia and bring a chance of showers... Rain showers with snow
levels remaining very high for this time of year(around 8000 feet
or higher)... With the best chance of showers over the cascades
and northeast basin mountains while the associated west to
northwest mid level flow shadows the basin. While scattered
showers are probable in the upslope regions... This does not look
like a sustained or significant precipitation event.

The next strong upper level ridge will aggressively build into
the region after Wednesday's disturbance. Some breezy northerly to
northeast winds will flow down the okanogan valley and into the
basin under the northerly flow aloft until the ridge axis moves
onshore and transits the area this weekend... Keeping the forecast
area dry and mostly clear with near normal high and low
temperatures. Fugazzi

Aviation
18z tafs: a cold front passage has pushed the clouds and main
precipitation threat away from most TAF sites, save for possible
few near puw coe... Maybe lws. Winds will continue to blow through
the afternoon, though should steadily decline especially after
23-01z. Recent precipitation, bl moisture and a developing
south southeast flow overnight and early Monday will bring the
threat of ifr stratus and patchy fog around geg sff coe puw,
though confidence is better toward sff coe. Additionally the
developing easterly flow may start to clear out puw before other
sites. J. Cote'

Preliminary point temps pops
Spokane 39 54 37 58 40 57 0 0 0 0 0 20
coeur d'alene 38 54 36 58 40 56 10 0 0 0 0 30
pullman 40 56 40 62 42 60 10 0 0 0 0 20
lewiston 43 62 42 65 44 66 10 0 0 0 0 20
colville 35 55 35 55 36 55 0 0 0 0 0 20
sandpoint 34 52 34 55 35 53 10 0 0 0 0 40
kellogg 37 50 36 58 38 54 20 0 0 0 0 50
moses lake 38 60 35 61 37 62 0 0 0 0 0 10
wenatchee 40 59 38 59 41 62 10 0 0 0 0 10
omak 34 57 35 57 36 58 0 0 0 0 0 20

Otx watches warnings advisories
Id... Wind advisory until 5 pm pdt this afternoon for coeur d'alene
area-idaho palouse.

Wa... Wind advisory until 5 pm pdt this afternoon for lower garfield
and asotin counties-spokane area-upper columbia basin-
washington palouse.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Omak Airport, WA35 mi42 minNE 1110.00 miFair62°F30°F31%1018.9 hPa

Wind History from OMK (wind in knots)
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Last 24hrS4SE4CalmCalmSE4CalmCalmCalmCalmSW4S5S5S3SW7SE8SW7S5S6SE5SE634NW8NE11
1 day agoSW9S9S5S4S4SE3CalmSW4S6W4SW4SE9SW7S5S6S10S8S9S5S8S9S8SW7SW7
2 days agoCalmSE5SW5SE4CalmCalmSW5S7S5S5S6SE10S8S9S7S8S8CalmS4S5S6S6S12S11

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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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.