Monday, May29, 2017 L-36.com


Marine Weather and Tides
Oroville, WA

Version 3.4
What's New / NOTES
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 4:55AMSunset 8:56PM Monday May 29, 2017 8:04 AM PDT (15:04 UTC) Moonrise 9:19AMMoonset 12:00AM Illumination 17% Phase: Waxing Crescent; Moon at 4 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 Oroville, WA
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location: 49.16, -119.25     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 291123
afdotx
area forecast discussion
national weather service spokane wa
423 am pdt Mon may 29 2017

Synopsis
High pressure continues over the inland northwest through Tuesday
with unseasonably warm temperatures. There is a small chance of
thunderstorms in the higher elevations, otherwise expect dry
weather. This warm spell will contribute to rises on rivers from
the cascades into north idaho. A cold front arrives Tuesday night
with a better chance of showers and thunderstorms. This will be
followed by cooler and unsettled weather for Wednesday into the
rest of the week.

Discussion
´╗┐today through Tuesday: warm weather continues, with limited shower
and thunderstorm chances. A ridge of high pressure centered over
the inland NW this morning will start to edge east. Moisture
lingering around the north to eastern CWA and increasing toward
the cascades with be accompanied by the reemergence of afternoon
instability. Subtle vorticity lobes in the westerly flow and
orographic ascent will lead to an increase in cumulus about the
mountain zones this afternoon. This will be accompanied by a
slight risk for showers and thunderstorms in the cascades, the
northern wa and id panhandle mountains, as well as the blues.

Tonight the risk will wane for most locations with the loss of
daytime heating, though some threat may linger near the cascade
crest with the onshore flow. Tuesday the ridge axis shifts into
the northern rockies and the southwest flow increases. Moisture
further deepens around the cascades ahead of the approaching
system. A limited shower and thunderstorm threat will be found
near the blues and far northeastern mountains with the afternoon
heating and instability. A better threat of showers and
thunderstorms will be developing within the cascades, especially
late. Middle to high clouds will gradually increase from the west
elsewhere. Easterly winds will increase. Temperatures will remain
above normal by about 10-15 degrees, with afternoon highs in the
80s to lower 90s. Tuesday will be the warmest day for most spots.

The main exception will be toward the cascades where the increased
onshore flow and increased cloud cover and shower chances may
hold temperatures down compared to today. J. Cote'
Tuesday night and Wednesday: models are in good agreement in
breaking down the warm upper ridge with an initial short wave
passage and surface cold front Tuesday night and into Wednesday
morning. The main frontal transit will occur overnight Tuesday and
into Wednesday morning... Not the most favorable time for serious
thunderstorm activity... However enough mid level instability and
plenty of moisture will be able to be exploited by the short wave
dynamics to produce a few thunderstorms moving off the cascades in
the evening and nocturnally transiting the basin and northern
mountains overnight... And redeveloping with a surface based
instability component during the day Wednesday concentrated over
the idaho panhandle. Otherwise... Breezy conditions will develop
over the basin as cooler air behind the front invades through the
cascade gaps. A general threat of showers with a few thunderstorms
looks plausible during this evolution.

Wednesday night through Sunday: although timing differences
develop between models through this period... All of them depict a
series of short wave disturbances transiting the forecast area in
a more progressive pattern for the remainder of the week and into
next weekend. None of these waves look particularly strong... But
each will be capable of triggering some showers or a few
thunderstorms mainly over the mountains north and east of the
basin... With occasionally breezy conditions in the basin itself.

Temperatures will cool back into the normal range during this
pattern... With mainly 70s readings in the populated areas during
the day and 40s to lower 50s at night. Fugazzi

Aviation
12z tafs: dominating ridge will lead toVFR conditions at all taf
sites. Isolated thunderstorms possible near the cascade crest and
over the higher terrain of northeast wa and the northern id
panhandle this afternoon, away from the tafs. J. Cote'

Preliminary point temps pops
Spokane 86 60 87 58 75 53 10 0 0 40 20 10
coeur d'alene 84 56 86 55 74 51 10 0 0 30 20 20
pullman 83 55 85 55 73 52 10 0 0 20 20 30
lewiston 90 59 91 61 80 56 10 0 0 20 20 30
colville 87 56 87 58 76 52 10 0 0 40 40 20
sandpoint 83 53 84 54 75 49 10 10 10 10 40 40
kellogg 84 53 84 53 76 47 10 10 0 10 30 50
moses lake 92 58 94 60 83 55 10 0 0 40 10 10
wenatchee 90 64 89 58 80 58 10 10 10 30 10 10
omak 89 58 90 60 81 53 10 10 10 50 40 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
Omak, Omak Airport, WA50 mi72 minN 510.00 miFair61°F48°F65%1017.7 hPa

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Last 24hrCalmCalmCalmSE4SW8SW7SW11S6SW7SW6SW5CalmW3W7W7NW7NW5W5CalmNW4N4N3N5N5
1 day agoCalmNE3CalmSW4S7S9SW9S10SW9SW6S5S6SW4W3W5W7W7W6NW6CalmW4NW3CalmCalm
2 days agoN6NE5NE533Calm54SW3CalmSW5W3NW3NW9W7W8NW4N3W5NW3N3CalmNW3NE3

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 (11,2,3,4)
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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.