Monday, May22, 2017 L-36.com


Marine Weather and Tides
Sandpoint, ID

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 4:58AMSunset 8:29PM Monday May 22, 2017 10:35 AM PDT (17:35 UTC) Moonrise 3:34AMMoonset 4:32PM Illumination 9% Phase: Waning Crescent; Moon at 27 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 Sandpoint, ID
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location: 48.28, -116.54     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 221135
afdotx
area forecast discussion
national weather service spokane wa
435 am pdt Mon may 22 2017

Synopsis
Dry conditions with warmer temperatures are expected under a
ridge of high pressure through Tuesday. This will increase
mountain snowmelt and lead to rises on local rivers and streams
in the cascades and across the northern mountains of washington
and idaho. A strong cold front will bring breezy conditions
Tuesday evening and Wednesday along with much cooler temperatures.

Cooler and unsettled weather will likely persist until next
weekend.

Discussion
Today... Upper level ridge of high pressure keeps north idaho
and eastern washington dry and warm. Weak disturbances overtop the
weak ridge and allow for some high clouds at times.

Tonight and Tuesday... The ridge aloft flattens while its axis gets
pushed to the east and into montana as a synoptic scale low pressure
system approaches the british columbia coast. Lower level thermal
ridge remains in place to keep Tuesday the warmest day of the seven
day forecast. /pelatti
Tuesday night through Sunday... The most significant weather event
of the week appears to be shaping up for Tuesday night and
Wednesday. All the latest models are in good agreement in sweeping
a strong and tight upper low through southern british columbia
with a trailing cold front crossing the cascades and breaking into
the columbia basin during this period. This system will be
generally dry with small chances of mountain showers over the
cascades and northern mountains... However the trajectory of the
parent upper low, gradient packing behind the front and a strong
stable layer in the mid levels behind this front will bring the
potential for windy and gusty conditions to the cascade gaps
Tuesday night evolving into breezy to windy conditions down the
okanogan valley and across the basin on Wednesday. Wind advisory
potential especially for the cascades, the waterville plateau and
the okanogan valley will need to be analyzed and refined for
these periods as subsequent model cycles become available.

For the remainder of the period... The offending closed low will
stall over the canadian prairie provinces and direct some wrap
around moisture into the forecast area from the north Thursday
and Friday with cool air aloft promoting afternoon instability.

The potential exists for isolated to scattered thunderstorms over
far eastern washington and the idaho panhandle each of these
afternoons.

Saturday and Sunday look like a re-establishment of a dry upper
ridge for a decreasing chance of showers and storms and a warming
trend for the region.

Temperatures over the region will register a sharp drop to below
average in the wake of the frontal passage on Wednesday with a
slowly increasing trend back to near normal on Friday and then
3 to 5 degrees above normal for the weekend. /fugazzi

Aviation
12z tafs: a ridge of high pressure will remain over the region.

The clear skies and light winds and some high cirrus at times
will allowVFR conditions to prevail. /pelatti

Preliminary point temps/pops
Spokane 80 56 82 48 62 44 / 0 0 0 0 10 10
coeur d'alene 79 51 81 47 62 43 / 0 0 0 10 10 20
pullman 78 52 81 49 61 43 / 0 0 0 0 0 10
lewiston 84 54 88 53 68 47 / 0 0 0 0 0 10
colville 81 53 83 48 63 45 / 0 0 0 0 20 10
sandpoint 77 48 79 44 61 40 / 0 0 0 0 20 20
kellogg 80 46 80 43 57 40 / 0 0 0 0 20 20
moses lake 87 56 91 51 70 47 / 0 0 0 0 0 10
wenatchee 85 60 88 50 67 48 / 0 0 0 0 0 10
omak 85 57 87 49 68 48 / 0 0 0 0 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
Sandpoint, Sandpoint Airport, ID2 mi60 minENE 610.00 miFair66°F39°F37%1023 hPa

Wind History from SZT (wind in knots)
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Last 24hrCalmE5E5E7E8E8CalmCalmCalmW3SW5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE6E6
1 day agoSW4SW5SW4E6SE6E4E5CalmCalmCalmCalmCalmCalmCalmCalmW3CalmCalmCalmCalmCalmNE3SE5SE4
2 days agoE3E4E3SW5S11SE8NE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE7CalmCalmNE10N13
G18
N6S3

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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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Spokane, WA (13,3,4,5)
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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.