Thursday, May23, 2019 L-36.com


Marine Weather and Tides
Lewiston, 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 5:05AMSunset 8:24PM Wednesday May 22, 2019 10:10 PM PDT (05:10 UTC) Moonrise 12:00AMMoonset 8:16AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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 Lewiston, ID
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location: 46.39, -116.98     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 222356
afdotx
area forecast discussion
national weather service spokane wa
456 pm pdt Wed may 22 2019

Synopsis
Temperatures will warm up the next couple of days with highs into
the 70s and low 80s. Afternoon showers and thunderstorms are
expected over the northern cascades Thursday afternoon but will
taper off in the evening. By Friday, a weather disturbance will
take up residence over western washington resulting in a good
chance of showers and afternoon thunderstorms for most of the
inland northwest. The disturbance will then drop south of the
area for the holiday weekend with a chance of showers mainly for
Saturday.

Discussion
Today through Friday morning: a mostly east-northeast upper flow
continues over the eastern washington and the northern panhandle
region through at least Thursday morning. As the upper low over
the great basin and central rockies begins to push northeast into
the north central us, a more northwest upper flow will increase
across the cwa. Much of the inland northwest will remain dry for
the most part except for the the western areas of the CWA where
the possibility of a few showers and isolated thunderstorms may
develop along the northern cascades. Increased pops Thursday
afternoon along will surface CAPE ranging 800-1200 j kg will
increase the chances isolated thunderstorms over the area.

Individual cells will be slow moving along the crest and
contribute to localized, but brief rainfall. Confidence is low as
to any widespread flooding concerns in the cascades Thursday
afternoon. By Friday morning, the region will begin to come under
the influence of a deepening upper low over southern bc dropping
southeast into north-central washington. Highs over the CWA will
range in the mid to high 70s across eastern washington and the
northern panhandle with parts of the columbia basin topping out
in the low 80s. Aky
Monday through Wednesday: there is good agreement between the
medium range models that showers will decreasing Monday into
Tuesday as our weekend trough drifts across the great basin into
the central rockies. The GFS and ECMWF forecast enough residual
instability Monday afternoon for the mention of scattered showers
and embedded thunderstorms over the cascades as well as the
southern idaho panhandle and southeast washington. Elsewhere, the
memorial day holiday should end on a pleasant note with dry
weather, afternoon temperatures mainly in the 70s, and north winds
in the 5 to 15 mph range. Low chances for showers remain in the
forecast for the mountains of the idaho panhandle Tuesday and
Wednesday, but if any rain does fall it should be light in the
absence of any significant synoptic scale feature to act as a
lifting mechanism. Afternoon temperatures will be in the mid 70s
to low 80s... About 5 to 8 degrees above average as we round out
the month of may. Gkoch

Aviation
00z tafs: scattered to broken mid high clouds will continue to move
west over the region with TAF sites remainingVFR through the
period. Clearing is expected aft 03-06z for geg-sff-coe-puw-lws.

High clouds will remain for mwh-eat. Gusty northeast winds will
tapper off btwn 01-03z. Thursday aft 19z CU will pop across the
region. Showers and thunderstorms will be possible for the
cascades, but only have mention of vcsh for eat attm.

Preliminary point temps pops
Spokane 47 76 50 65 44 64 0 0 10 60 40 30
coeur d'alene 46 76 49 64 44 66 0 0 0 70 30 30
pullman 45 73 47 65 42 62 0 0 0 50 30 40
lewiston 50 78 55 73 49 69 0 0 0 60 30 40
colville 40 79 42 66 40 66 0 0 10 70 40 40
sandpoint 45 74 48 63 46 65 0 0 10 70 40 40
kellogg 47 72 50 63 47 63 0 0 0 70 30 40
moses lake 51 83 53 75 47 71 0 0 10 40 30 20
wenatchee 55 80 57 72 51 68 0 10 0 40 30 40
omak 52 80 53 68 50 69 0 10 10 70 40 50

Otx watches warnings advisories
Id... None.

Wa... None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lewiston, Lewiston-Nez Perce County Airport, ID2 mi75 minENE 510.00 miFair65°F36°F34%1013 hPa

Wind History from LWS (wind in knots)
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Last 24hrW3S3S3S3S3W4SE3W3SW3CalmCalmNW3NE54E13
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1 day agoN4N4NW36
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NW7NW6W5NW7NW5NW8NW11NW11NW11NW11NW9W8NW8W64S8SW8S6W3Calm
2 days agoE11E10E10NE9E6E5E4S3S4CalmCalmCalmNW4NE5NW6NW8NE44N3W7NW5W4W4W4

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 (1,6,7,8)
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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.