Tuesday, December18, 2018 L-36.com


Marine Weather and Tides
Bellevue, 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 8:01AMSunset 5:08PM Tuesday December 18, 2018 8:23 PM MST (03:23 UTC) Moonrise 2:37PMMoonset 3:13AM Illumination 88% Phase: Waxing Gibbous; Moon at 11 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 Bellevue, ID
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location: 43.53, -114     debug


Area Discussion for - Pocatello, ID
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Fxus65 kpih 182050
afdpih
area forecast discussion
national weather service pocatello id
150 pm mst Tue dec 18 2018

Short term Latest satellite and radar imagery shows the initial
band of precipitation advancing into the eastern highlands about
idaho falls and rexburg area. The main push of moisture is still
crossing the west side of the state. Stanley so far has reported
0.05 inches of precipitation, snow at hailey with a current
temperature of 34f. Surface temperatures from burley to pocatello
are about 45f, a bit warmer than anticipated and snow levels perhaps
100 to 200 feet higher. More of a rain snow mix is expected for this
evening along the i-15 corridor as far north as camas, and along us-
20 as far as ashton may well see mixed precipitation. After midnight
some of the precipitation will change over to snow. A winter weather
advisory remains in effect for portions of the central mountains and
the eastern highlands between swan valley and macks inn. A cold
front will cross the snake plain 3 to 6 am. Winds in the southern
snake plain are expected to increase to 20 to 30 mph for a couple
of hours and then gradually decrease through Wednesday morning.

By noon Wednesday some light snow will linger in the highlands
near the wyoming border, otherwise a ridge of high pressure will
build in. The next disturbance is moving about 6 hours faster than
previously forecast and should make stanley Thursday by evening
and be east of the state by Friday afternoon. This looks to be a
fast mover, mountain snows limited to around 1 to 3 inches and for
the lower valleys, an inch or less. Rs

Long term Fri night through christmas night. The longwave pattern
has northwesterly flow with a weak ridge at the west coast and a
weakening trough in the middle of the country. The flow is moderate
until christmas day, when the steering flow weakens considerably.

Even with the ridge, flow is nearly flat, the amplitude is so low.

Once again, this means that shortwaves will dominate the solutions
in the medium range, and so there is a high degree of uncertainty in
timing, likely very little agreement between the ECMWF and gfs, and
continued large swings in run-to-run solutions even in one model.

There are some weak impulses moving through on Fri night through sat
night, with little agreement between the GFS and ECMWF on locations,
but there is agreement on little to no precipitation during that
time, making them the best travel days for christmas. On sun,
conditions should take a turn for the worse in general, although
just exactly what locations will be the most affected are uncertain.

A trough coming in from the west is bringing moderate to heavy
precipitation to the forecast area at least through Sun night. For
christmas eve day, there is still a huge difference of opinion
between the GFS and the ecmwf. The GFS is very wet, with as much as
an inch of precipitation on Mon alone in portions of the sawtooth,
while the ECMWF has less than 0.10 inch. This potentially wet
scenario has been present for a while, but the GFS went one way
(much wetter) while the ECMWF went the other (much drier). So a very
broad brush is needed for christmas eve, and likely christmas day
right now. The cause of all this disagreement and model swings is a
closed low that has been placed in numerous locations in the last
several days, and where it will track makes a huge difference in
precipitation for any particular location. So there is a threat of
precipitation, but have no idea on amounts. Even temperature-wise,
there is quite a bit of disagreement at the end of this period. The
bottom line continues to be unsettled weather from Sun onwards.

Messick

Aviation Widely scattered showers will continue to hamper
operations at the airports this afternoon and evening, but the
stratus takes over for the problems by morning, at least at some of
the airdromes. Kdij will have the biggest problems overnight, as it
will be the last to see the moisture clear out. Kida also expected
to have some issues in the morning. Ksun will have conditions that
should bring closure to most aircraft, but by early Wednesday the
northwest flow should bring clearing. The issue common to all
airdromes is the elevated wind, even in kdij and ksun. Messick

Pih watches warnings advisories
Winter weather advisory until 11 am mst Wednesday for idz064-066-
072-073.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hailey, Friedman Memorial Airport, ID16 mi34 minE 47.00 miOvercast37°F32°F81%1017.3 hPa

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Last 24hrCalmCalmW4NW5NW3NW5NW8NW5NW7NW5NW6NW7W5NW4NW4CalmS5SE7SE6SE7SE4CalmE4E4
1 day agoNW8NW9NW10NW10NW13
G19
NW16NW9NW12NW8NW5NW8N3NW6NW6CalmSE3CalmSE8SE9SE5SE6SE7SE4E6
2 days agoNW3W3W3NW6NW7NW6NW7NW7NW9NW12NW8NW10
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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    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 Pocatello, ID (22,6,7,8)
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Ground Weather Radar Station Pocatello/Idaho Falls, ID
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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.