Wednesday, September19, 2018 L-36.com


Marine Weather and Tides
Bellevue, ID

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:21AMSunset 7:40PM Wednesday September 19, 2018 2:33 PM MDT (20:33 UTC) Moonrise 4:08PMMoonset 12:54AM Illumination 74% Phase: Waxing Gibbous; Moon at 10 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 192028
afdpih
area forecast discussion
national weather service pocatello id
228 pm mdt Wed sep 19 2018

Short term Tonight through Friday night
a cold front tonight will bring scattered showers to central idaho
with only isolated activity elsewhere. The driving shortwave
trough axis approaching western idaho will push through the region
tonight dragging a relatively dry cold front with it. The dry air
is evident on the multi-layered water vapor imagery this
afternoon, pushing through central nv into southeast id. Winds
will pick up in the cold advection behind the front tonight, but
model trends have favored a weaker trough, and thus weaker mixing
of surface winds.

A return to dry conditions is expected for Thursday, save for our
extreme northeastern zone near island park. A few lingering
showers and clouds are possible here through about midday. Dry
zonal flow will clear skies across the region, and moderate
temperatures heading into the early weekend.

Tax

Long term Saturday through Wednesday
dry weather is expected through much of the weekend, although the
next cold front is poised to move into our northwest by Sunday
afternoon. The upper-level flow amplifies Saturday allowing
heights to build through the region. For this reason, the forecast
has been trended towards the bullishly warm mex guidance,
especially in the favored downslope areas of the snake plain.

Sunday temperatures and resulting rh values will be tricky,
depending ultimately on the timing of the front.

Confidence in the overall pattern next week is waning. Guidance
remains fairly consistent on digging a deep trough into the
western us after Sunday's cold front. The problem has been the
placement of the trough and resultant weather it sets up for us.

There will be a cool down for Monday and perhaps Tuesday, but the
big pattern shift that was discussed 24-48 hrs ago appears fairly
transient with cool and dry weather giving way to another warmup
towards the middle of next week. How strong of a warmup remains to
be seen.

Tax

Aviation A cold front is forecast to cross SE idaho this evening,
reaching a byi-sun line around 00z, pih to ida between 00-01z and
dij by 03z. This will cause a wind shift to the SW at ksun and dij,
and simply an increase in winds at byi, ida, pih and dij, with gusts
in the 20-30kt range possible along and behind the front, before
winds begin to subside towards 06z. Am carrying vcsh at all taf
sites, but this should be mainly virga or sprinkles accompanied by a
vfr mid deck. Hrrr paints the potential for MVFR stratus from 12-15z
thu at ida but have disregarded this potential ATTM due to the
forecast dry nature of the boundary layer. Gusty afternoon SW winds
in the 10-20 kt with occasional higher gusts expected at byi, pih,
ida and dij between mainly 19-00z tomorrow afternoon. Ad tax

Fire weather Combination of wind gusts and low humidity will be
near critical levels for the remainder of the afternoon and early
evening hours. A relatively dry surface cold front will push in from
the west, bringing some stronger wind gusts to fire weather zones
410, 413, and 425 this evening as humidity begins to recover.

Despite the absence of fire weather headlines today, there is
potential for rapid fire spread given the near record low erc
values. Isolated dry thunderstorms will also be a threat this
afternoon and evening, mainly along the utah border and across the
salmon-challis, however the threat is low. Any activity should taper
off late tonight. Fire weather headlines were also considered for
Thursday afternoon for zones 425 and 410 due to the expected
combination of critical rh and wind gusts in the craters of the moon
vicinity. Due to the combination of only a small portion of both
zones predicted to exceed critical thresholds and after coordination
with local fire dispatch centers, we opted against a fire weather
headline. The next period of impactful fire weather is expected
Saturday as another mainly dry cold front is forecast to swing
through the region. The combination of gusty winds and low relative
humidity will again combine to elevate fire weather concerns.

Otherwise, seasonable temperatures and continued dry weather is
currently anticipated to continue into at least early next week.

Ad tax

Pih watches warnings advisories
None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hailey, Friedman Memorial Airport, ID16 mi46 minSE 10 G 2010.00 miClear68°F33°F28%1013.2 hPa

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Last 24hrS10
G16
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S5SW5S4W4NW3NW7W7--NW7NW7NW10NW9NW9NW8NW8NW10NW6NW8NW4SE8SE10SE10
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1 day agoE9E8S9S9S5CalmNW7NW7NW10--NW9NW10NW12NW13NW10NW10
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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.
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Wind Forecast for Pocatello, ID (16,3,4,5)
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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.