Wednesday, May23, 2018 L-36.com


Marine Weather and Tides
Athol, ID

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 4:57AMSunset 8:30PM Wednesday May 23, 2018 3:56 AM PDT (10:56 UTC) Moonrise 2:02PMMoonset 2:37AM Illumination 61% Phase: Waxing Gibbous; Moon at 8 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 Athol, ID
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location: 47.98, -116.56     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 230929
afdotx
area forecast discussion
national weather service spokane wa
229 am pdt Wed may 23 2018

Synopsis
Scattered slow moving thunderstorms will develop this afternoon
and this evening. Locally heavy rain will be possible with
highest chance for heavy downpours over the central and southern
idaho panhandle. More showers and thunderstorms are expected
Thursday and Friday. Drier and seasonably warm conditions are
expected over the memorial day weekend.

Discussion
Today through Thursday: the closed low continues to slowly move
out of the desert southwest. An upper level low develops over
eastern wa today which will provide the kicker for renewed
showers and thunderstorms once again. Today the potential for
thunder will be just about everywhere, especially by late
afternoon and through the early evening hours. The best
instability and moisture will reside across SE wa and nc id. Winds
will be fairly light, and so slow moving thunderstorms like we
have seen the last several days will be expected again today.

Heavy rain and lightning will be the main threat, but we could
also see small graupel and gusty winds with any storms that
develop. Thunderstorms will decrease through the evening with
showers through the night across eastern wa and north id as energy
exits the area to the northeast. Thursday the ridge will build as
another closed low moves toward california. The potential for
afternoon and early evening thunderstorms continues. Temperatures
will remain about 10 degrees above average for this time of the
year. For the valleys that is highs in the 80s and lows in the 50s
to around 60. Nisbet
Friday: the evening runs of the gfs, nam, and ECMWF have trended
drier during the day fri. Shower and thunderstorm activity
emerging out of oregon is slower than previously advertised. By
the time the models push the shortwave into our region, westerly
surface winds are expected to stabilized much of central
washington and columbia basin. At this time, it looks like the
best shot of showers and thunderstorms will be during the evening
as the shortwave interacts with the axis of highest instability
over the southern panhandle into western montana. In a nutshell,
precipitation chances have been decreased for the majority of the
inland northwest during the day fri. Afternoon temperatures have
been raised into the lower to mid 80s since it appears we will
have clouds develop later in the day.

Saturday: the passage of an open 500mb trough on Sat morning is
expected to produce a chance of showers. By the afternoon, the
moisture plume will likely be swept east of our region with the
exception of a few lingering showers over the high terrain of
shoshone county in idaho. Sat should be our coolest day of the
holiday weekend with afternoon highs in the mid 70s to low 80s.

Sunday, Monday and Tuesday: by Sun and mon, low pressure
languishing over utah will influence our weather less as it
becomes cutoff and the inland northwest will become increasingly
influenced by drier westerly flow off the pacific. Small chances
of showers have been retained over the southern idaho panhandle
and camas prairie, but the rest of the inland northwest should be
mostly clear. Temperatures will climb into the upper 70s and low
80s Sun and the lower to mid 80s by mon. There is decent
agreement in the medium range models that a broad pacific trough
will approach on tue. This scenario would likely produce enough
onshore flow to knock a few degrees off our high temps tue
followed by breezy conditions and mountain showers on wed. Gkoch

Aviation
06z tafs: the region will remain in an unstable pattern, with
disturbances rounding a broad great basin low. Through 08-09z an
instability -shra -tsra will linger over id and east wa. But the
risk of one passing a TAF site is limited. There is a limited risk
some may develop overnight around the lower id panhandle and
columbia basin with some elevated instability, but the risk is
limited. The threat re-develops Wednesday, with the best chances
in the late afternoon to evening. This threat will develop around
most of the region, but these should be isolated to scattered in
nature. PrimarilyVFR conditions are expected. J. Cote'

Preliminary point temps pops
Spokane 81 59 81 58 81 55 20 40 30 10 10 20
coeur d'alene 81 58 79 56 80 54 20 40 40 10 10 30
pullman 77 56 77 56 77 54 30 40 40 20 10 50
lewiston 82 60 83 60 82 59 30 40 40 30 10 50
colville 84 57 83 54 84 55 10 30 30 30 10 20
sandpoint 81 54 78 52 81 52 20 40 40 20 10 30
kellogg 77 54 76 53 79 51 40 80 40 30 20 40
moses lake 87 59 87 57 84 55 10 20 10 10 10 10
wenatchee 85 60 86 59 83 56 30 30 10 10 10 10
omak 85 59 86 56 84 55 20 20 10 20 10 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
Coeur d'Alene Airport - Pappy Boyington Field, ID20 mi2 hrsE 410.00 miFair58°F50°F75%1010.4 hPa
Sandpoint, Sandpoint Airport, ID22 mi82 minN 010.00 miFair50°F46°F88%1010.8 hPa

Wind History from COE (wind in knots)
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Last 24hrE4NE4NE6NE4NE8N8NE11N10N9N8N7N8NE8N7E8E6S8SE3CalmN6SE7N3E4NE6
1 day agoS5SE4NE3N6NE4SE4SW766SW5W7S7S6S6S7S7S6S6SE6S7SE8NE4SE4E4
2 days agoE7NE6NE8NE9NE9N9NE63W6W54E4N5N6W8SW7W6S5S4S5S6S6S6W3

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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wmap_P
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.