Wednesday, December12, 2018 L-36.com


Marine Weather and Tides
Dover, ID

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:25AMSunset 3:57PM Wednesday December 12, 2018 3:42 AM PST (11:42 UTC) Moonrise 12:16PMMoonset 10:05PM Illumination 24% Phase: Waxing Crescent; Moon at 5 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 Dover, ID
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location: 48.27, -116.6     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 121051
afdotx
area forecast discussion
national weather service spokane wa
251 am pst Wed dec 12 2018

Synopsis
Rain and snow will linger over the idaho panhandle this morning
with continuing moderate to heavy mountain accumulations. It will
be windy today with gusts to 40 mph over the palouse, and breezy
conditions elsewhere. A series of weather systems Thursday
through the weekend will bring the potential for a mix of rain and
snow in the lowlands and snow over the mountains.

Discussion
Today through Friday:
the frontal system has now pushed south and east of our forecast
area. Moist westerly flow aloft has now set up across the region,
with snow showers persisting over the orographically-favored
areas of the cascades and the idaho panhandle. Expect these
showers to gradually weaken in intensity and become more isolated
in coverage through the course of today. Elsewhere, west to
southwest winds have picked up last evening and this morning in
the wake of the frontal system. As of this writing, local gusts up
to 40 mph have been reported along the palouse, and higher gusts
over exposed ridges of the blue mountains. Pressure gradients are
projected to be at their peak early this morning, and slowly
weaken through the day. Locally breezy conditions are likely to
continue however through tonight and possibly into Thursday.

The next storm system in line is racing toward the eastern
pacific, reaching the west coast later today. This system will
likely take on a more northerly trajectory than the previous one,
with the atmospheric river aimed at the canadian cascades.

Precipitation totals with this next system are likely to be less
than Tuesday's system with more in the way of precipitation
shadowing in the lee of the cascades. That being said, hi-res
models are starting to hint at a precipitation band moving through
eastern wa into northern id late Wednesday night into Thursday
morning. We've bumped up precipitation chances in this timeframe,
and if it does indeed occur, a quick half inch to inch of snowfall
will be possible in the lowland areas. A couple of inches will be
possible north of coeur d'alene, from sandpoint to bonners ferry.

The next weather system then arrives on Friday. A fair bit of
forecast uncertainty continues with this system. The ECMWF favors
a split-flow solution, which would diminish the chances of
precipitation across our forecast area. The GFS brings more
consolidated energy through the region, which would favor valley
rain and mountain snow. Made minimal changes to the forecast in
this timeframe, given the considerable forecast uncertainty.

Dang
Saturday through Tuesday: longwave pattern shows a change as the
longwave trof retrogrades a bit to the west and away from the coast
coupled with longwave ridge amplification and placement over the
western us. The juxtaposition of the two favors a warm southwest to
northeast approach for storm system to utilize and pass through
eastern washington and north idaho, thus forecast temperatures
remain on the warm side of what would be considered climo through
this time interval coupled with snow level oscillation favoring more
of a rain or possibly brief non-accumulation snow transitioning to
rain for valley and lowland locations with all snow generally above
4000 feet msl. Saturday is a bit of an exception to this as a cold
and conditionally unstable airmass remaining for a spell Friday
night in the wake of Friday's weather system passage will allow for
efficient radiational cooling as transient shortwave ridging moves
in which allows for a cool and dry forecast for Saturday, otherwise
additional shortwave disturbances with not very efficient taps into
subtropical moisture may move through Sunday, Monday, and Tuesday.

Pelatti

Aviation
06z tafs: the cold front is currently located from around kpdx in
northwest or to kcoe in northern id. Precipitation is winding down
across the spokane coeur d'alene corridor with moderate to light
rain expected at kpuw and klws through about 10z. MVFR conditions
will be possible across the spokane area into coeur d'alene and on
the palouse. However, there will be quite a bit of wind that will
keep low levels mixed, so I do expected there to be some breaks in
the stratus as well. Kpuw and klws will also see low level wind
shear with around 45 kts of wind out of the west expected at the
top of the mixed layer. These winds will mix down to the surface
with gusts to around 30 kts possible for kgeg, kpuw and klws.

Svh

Preliminary point temps pops
Spokane 37 31 39 29 41 29 0 30 40 10 20 30
coeur d'alene 37 31 39 29 41 30 10 30 50 20 20 40
pullman 38 30 40 31 41 31 10 10 30 10 10 30
lewiston 45 33 45 32 45 33 0 0 20 0 10 20
colville 40 29 40 26 41 26 0 50 50 30 30 30
sandpoint 36 30 37 28 39 30 20 80 90 40 30 50
kellogg 34 29 37 28 40 29 70 40 60 20 20 50
moses lake 43 32 44 29 41 29 0 20 10 0 10 10
wenatchee 41 33 41 31 38 29 10 50 40 10 20 20
omak 40 30 40 30 38 26 0 40 30 20 20 20

Otx watches warnings advisories
Id... Winter storm warning until noon pst today for central panhandle
mountains.

Winter storm warning until 4 am pst early this morning for
northern panhandle.

Wa... Winter storm warning until 4 am pst early this morning for east
slopes northern cascades.

Winter weather advisory until 10 am pst this morning above 4500
feet for northeast blue mountains.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sandpoint, Sandpoint Airport, ID3 mi48 minSW 810.00 miOvercast36°F33°F93%1004.1 hPa

Wind History from SZT (wind in knots)
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Last 24hrS4S5SW4S4S4S5SW6SW8SW5SW5SW4S5S4S3CalmCalmCalmCalmCalmCalmS6SW4SW7SW7
1 day agoCalmCalmCalmCalmS3CalmSW3CalmS5S4S5S4SW3SW5SW5SW6SW6SW6S5SW6W5SW4SW5SW4
2 days agoN9W4CalmNE6NE10N7NE12NE8N7NE8NE8NE4NE5CalmCalmCalmCalmN4CalmCalmCalmCalmCalmCalm

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Spokane, WA (6,6,7,8)
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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.