Sunday, August25, 2019

Marine Weather and Tides
Oroville, WA

Version 3.4
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at Allen

Sunrise 6:02AMSunset 7:58PM Sunday August 25, 2019 9:51 AM PDT (16:51 UTC) Moonrise 12:26AMMoonset 4:38PM Illumination 24% Phase: Waning Crescent; Moon at 25 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 251136
area forecast discussion
national weather service spokane wa
436 am pdt Sun aug 25 2019

Today will continue to be breezy with high temperatures mainly in
the 80s. The upcoming week will be be warm, with temperatures
climbing into the 80s and 90s by mid week and remain quite warm
through Friday or Saturday. There will be a low end chance for
showers near the end of the week. The labor day weekend looks
warmer than average and potentially breezy.

Today through Monday: jet stream over eastern washington and
north idaho gets tilted in a more northwest to southeast orientation
as ridging shows some amplification off the coast. In addition small
shortwaves drop down this flow, coupled with some moisture tied into
this flow allow for a bit more cloud cover and minor pops for very
light showers in spots today into this evening, mainly within close
proximity to the cascade crest and vicinity of british columbia
border. In addition the close proximity of the jet stream will allow
today to be another breezy day and slightly cooler compared to
yesterday in some locations. Monday the ridge amplification off the
coast continues and the axis migrates closer to the coast which
pushes the jet stream and its associated storm track away to the
north and east. This is marked in the forecast with the beginning of
a warming trend along with less cloud cover, no pops, and less wind.

Tuesday through Thursday... The dry northwest flow over the region
will get pushed to the east as the ridge of high pressure
strengthens over the pac NW Tuesday and Wednesday. Temperatures
will warm into the mid 80s to mid 90s. This is 5-10 degrees above
normal for lat august. In addition relative humidity will be quite
dry with poor to moderate relative humidity recoveries on the mid
slopes and ridges. This will once again hasten the drying out of
fuels and push most areas back into being susceptible to new fire
starts. Winds will be light, but mainly out of the northeast to
southeast. Model guidance is showing high level moisture advecting
up into the region from the south Wednesday and Thursday.

Moisture moving up from the south under a ridge would usually give
a concern of convection. Right now all indications are that this
moisture will be well up in the atmosphere and when the flow turns
to westerly Thursday afternoon most of that moisture should stay
south. In addition the models are not showing much in the way in
mid and upper level instability. The best chances would be
Thursday night. That is well out in the forecast and we will keep
an eye on this, but for now will put a slight chance across the
panhandle mountains and the blues.

Friday through Sunday... A second low will drop out of the gulf of
alaska and model guidance wants to bring that trough through the
pac NW sometime between Saturday night and Sunday night. The
ensemble models are in better agreement than the deterministic
models and are going with a slower solution. The ridge will begin
to bend down Friday and Saturday before breaking down Sunday
night. While temperatures will remain warm through the weekend
they should cool off a degree or two Friday and Saturday, and
likely 3-5 degrees more on Sunday. So no big changes to the
forecast at the end of the extended period. The labor day weekend
will begin warm and very dry Friday and Saturday, with cooler
temperatures and breezy gusty winds possible Sunday and Monday.


12z tafs: a weak weather system clipping the area today will
bring flat cumulus along with a band of passing mid level clouds.

This system will also bring another round of gusty west winds today
but with lower speeds compared to those observed on Saturday.

Vfr conditions are expected to continue at all TAF sites.

Preliminary point temps pops
Spokane 77 51 81 50 85 53 0 10 0 0 0 0
coeur d'alene 76 48 79 49 84 51 0 10 0 0 0 0
pullman 76 45 78 45 84 49 0 0 0 0 0 0
lewiston 83 56 85 54 91 58 0 0 0 0 0 0
colville 80 41 85 42 89 46 0 10 0 0 0 0
sandpoint 74 45 78 44 82 48 0 10 0 0 0 0
kellogg 71 51 75 50 80 54 10 10 0 0 0 0
moses lake 83 51 85 52 88 54 0 0 0 0 0 0
wenatchee 82 56 84 60 88 62 0 0 0 0 0 0
omak 81 52 84 54 88 57 0 0 0 0 0 0

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 Airport, WA50 mi58 minN 1210.00 miFair70°F42°F37%1015.4 hPa

Link to 5 minute data for KOMK

Wind History from OMK (wind in knots)
Last 24hrN13N12N10W5W4W4E6NE7N7NW9NW11NW12NW10N9NW6N7N10NW6NW6W7N5Calm4N12
1 day agoSE4S5S11SE7W5N15N19
2 days agoN13N14

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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GOES Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Spokane, WA (12,3,4,5)
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Ground Weather Radar Station Spokane, WA
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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 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 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.