Wednesday, May24, 2017 L-36.com


Marine Weather and Tides
Elgin, OR

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 5:08AMSunset 8:31PM Wednesday May 24, 2017 8:15 PM PDT (03:15 UTC) Moonrise 4:49AMMoonset 7:08PM Illumination 0% Phase: New Moon; Moon at 29 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 Elgin, OR
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location: 45.61, -117.91     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 250305
afdpdt
area forecast discussion
national weather service pendleton or
805 pm pdt Wed may 24 2017

Update Clouds are increasing from north to south across the
forecast area this evening ahead of a weather disturbance on the
back side of an upper trough over the rocky mountains. There is very
little moisture with this system but may see some showers developing
on Thursday... First over the eastern mountains and then over the
washington cascades and the yakima kittitas valleys as well as the
eastern and northeast mountains. There will be enough instability
Thursday afternoon for there to also be a slight chance of
thunderstorms which will persist into Thursday evening. The
probability of precipitation will be in the chance category over the
washington cascades and over the eastern mountains, with slight
chances elsewhere... Except dry in the lower columbia basin and in
central north central oregon. Precipitation amounts will be light
with perhaps between .05 and .15 of an inch, especially in the
mountains. Snow levels will be high enough where snow will only be
possible over the higher wallowa mountains Thursday afternoon and
evening. On Friday there will be a slight chance of showers and
afternoon thunderstorms mainly just over the northern blue mountains
and over wallowa county. Breezy winds (except for very windy
conditions in the kittitas valley, where there is a wind advisory
until 10 pm this evening) will diminish overnight tonight and become
light in all locations. Winds will remain light on Friday. An upper
ridge will return to the pacific northwest by Saturday morning
resulting in another warming trend that will continue into next
week. 88

Aviation 06z tafs...VFR conditions will prevail through the next
25 hours at all TAF sites... Except at krdm and kbdn where MVFR
conditions may develop in lowered cigs. Elsewhere CIGS will range
from 080-150. Breezy to windy conditions this evening will diminish
and winds will become light and under 15 kts at all TAF sites after
06z this evening. 88

Prev discussion issued 435 pm pdt Wed may 24 2017
short term... Tonight through Saturday... Breezy to windy conditions
will continue through this evening and then winds will decrease
overnight. The upper level low over western canada has shifted into
central canada but is leaving an deepening upper level trough in its
wake. This will place the forecast area under a cool northerly flow
over the next 24 to 48 hours. A weak shortwave dropping south in the
flow will bring some increasing instability to the forecast area
Thursday leading to an increasing chance of showers and possible
thunderstorms through the evening for portions of the forecast area.

There will be some lingering showers and possible thunderstorms
Friday afternoon near the idaho border otherwise a ridge of high
pressure off the coast will begin to move inland Friday bringing
temepratures back to near normal. The ridge will shift over the
forecast area on Saturday for a return of above normal temperatures
through the holiday weekend.

Long term... Late Saturday evening through Wednesday... The pacific
northwest looks to be under an upper level ridge at least through
Tuesday. Thus should see mostly dry conditions with high temps 15 to
20 degrees above seasonal. Also low temps would run around 5 to 10
degrees above seasonal. Subsidence should be fairly strong,
especially over our eastern zones Sunday and Monday. Thus convective
activity should be very limited despite increased heating driven
instability. Will continue to indicate patchy areas of slight chance
thunder along the cascades Sunday and Monday afternoons evenings.

Any stray storms would be quite high based. There is some indication
that a pacific disturbance may begin to approach the region Tuesday,
shifting the ridge axis east towards western idaho. Thus the limited
chances of thunderstorms could shift east to the eastern mountains,
and have continued to show this trend. For Wednesday, mid range
models diverge some on the timing and strength of a possible break
down of the upper ridge due to the aforementioned pacific system.

For now will follow the slower ecmwf, keeping temps well above
seasonal on Wednesday. Will also keep thunderstorm chances limited
to the mountains as well. 90

Preliminary point temps pops
Pdt 46 67 46 75 0 20 20 0
alw 50 70 50 78 0 20 20 0
psc 49 74 49 82 0 10 10 0
ykm 48 76 48 82 0 20 20 0
hri 48 72 47 80 0 10 10 0
eln 46 72 46 80 0 20 20 0
rdm 34 71 38 76 0 10 10 0
lgd 42 63 41 69 10 30 20 10
gcd 41 67 40 73 0 20 30 10
dls 49 76 51 85 0 10 10 0

Pdt watches warnings advisories
Or... None.

Wa... Wind advisory until 10 pm pdt this evening for waz026.

88 90 88


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
La Grande/Union County Airport, OR23 mi20 minN 1110.00 miFair54°F28°F38%1008.5 hPa

Wind History from LGD (wind in knots)
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Last 24hrW11NW12
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1 day agoNW8NW5W3SE6CalmCalmCalmW3CalmCalmCalmCalmCalmSE3NE3SE4E4SW4E7SE6SE9S5NW7NW6
2 days agoNW6CalmN9CalmNE4NW5CalmW3CalmN3CalmN4N3N3N4NW3CalmN3NE5NE4NE3N5N6NW7

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 Pendleton, OR (23,6,7,8)
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Ground Weather Radar Station Pendleton, OR
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weather_mapweather_map weather_map

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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.