Friday, May24, 2019 L-36.com


Marine Weather and Tides
Seneca, OR

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 6:11AMSunset 9:15PM Friday May 24, 2019 11:49 AM MDT (17:49 UTC) Moonrise 12:51AMMoonset 10:26AM Illumination 68% Phase: Waning Gibbous; Moon at 20 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 Seneca, OR
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location: 43.93, -118.64     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 241700
afdpdt
area forecast discussion
national weather service pendleton or
1000 am pdt Fri may 24 2019

Short term Water vapor imagery showing upper low moving into
the pacific northwest. Large area of clouds and showers out ahead
of the low is currently moving across the forecast area. This will
continue through the morning before moving off to the east. Will
likely see some clearing in the afternoon as the center of the low
moves overhead. Instability is weak but expect scattered showers
with isolated thunderstorms possible over the mountains. Westerly
winds will be increasing as well becoming breezy to windy in many
locations. Cooler temperatures today as compared to yesterday with
highs down 5-10 degrees. 94
aviation... 18z tafs... Sct-bkn 050-100 ft clouds will continue
through the day and most of tonight. Isolated to scattered showers
this morning across southeast wa and eastern or will continue to
drift east. Isolated afternoon thunderstorms are possible over the
mountains and possibly near kalw and kpdt. Chances are weaker at
kpsc and kykm. Overall chances of precipitation are fairly modest,
so have used mostly vcsh vcts. Winds will increase during this
morning, and most TAF sites will have 10-20 kt winds gusting to 25-
30 kts through early evening. At kdls, winds of 20-30 kts with gusts
to 40 kts are possible this afternoon.

Prev discussion issued 503 am pdt Fri may 24 2019
short term...

Friday through Sunday... A shortwave dropping down from british
columbia today will carve out an upper low over oregon and
washington and this low will move a bit south and east before
weakening on Saturday. There is not a lot of moisture with this
system, but enough instability that there could be a few showers
and thunderstorms, especially over eastern areas today. Saturday
looks mainly dry, with the exception of the cascades and eastern
mountains. As the shortwave moves across we will see gusty nw
winds developing, with northwesterly gusts to around 30 mph
possible.

By Saturday night, a second, stronger upper low will be moving
down the washington and oregon coasts and then moving ashore in
northern central california on Sunday. This low will bring an
increase in precip chances especially over central and eastern
areas and increasing instability will bring more thunderstorm
chances as well.

Long term... Sunday night through Friday... Sunday night a large
trough will be over the west coast with an upper low at the base
of the trough over california. Wrap around moisture from the low
will give much of the area showers with a slight chance of early
evening thunderstorms over the eastern oregon mountains and in
central oregon. The low will be moving east and will be over new
mexico Monday. Showers and thunderstorms will be decreasing Monday
afternoon and evening but there should still be a slight chance
of showers and thunderstorms mainly in the eastern oregon
mountains. By Tuesday the low will have moved off to the midwest
but a weak wave moving through the broad trough that develops will
keep a slight chance of showers in the mountains. By Wednesday,
models differ, with the GFS forming a weak low over northern
california while other models have a weak disorganized north flow
over the area. Have maintained the current dry forecast for now
though the GFS has showers over the mountains and central oregon.

By Thursday whatever low develops will have sunk south into
central california. Both the GFS and ECMWF show a slight chance
of showers in the eastern oregon mountains and in central oregon.

By Friday, the trough finally shifts east and a westerly flow
develops. The forecast for Friday is dry aside from a slight
chance of showers in wallowa county. Temperatures through the
period will be in the mid 70s to mid 80s in the lower elevations
with 60s to lower 70s in the mountains Monday to Wednesday then
warming to the mid 60s to mid 70s by Friday. Perry

Preliminary point temps pops
Pdt 68 42 66 46 40 10 10 20
alw 69 46 69 49 50 20 10 20
psc 75 49 70 53 40 20 10 20
ykm 72 46 67 49 40 10 30 20
hri 72 46 69 48 40 10 10 20
eln 66 46 63 47 40 10 40 30
rdm 64 37 59 40 40 0 10 50
lgd 62 41 63 45 70 30 20 30
gcd 63 39 61 43 60 20 20 30
dls 66 47 64 48 40 0 10 20

Pdt watches warnings advisories
Or... None.

Wa... None.

94 84


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burns Municipal Airport, OR29 mi57 minVar 310.00 miMostly Cloudy53°F45°F74%1013.7 hPa

Wind History from BNO (wind in knots)
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Last 24hrN10N10
G15
N10N8N4N14
G20
N14N12
G18
N12NW12N8W4NW8NW7NW7NW7NE4NW44E3E4CalmNE53
1 day agoN14
G23
N19
G25
N21
G29
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G27
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G26
N16
G23
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G25
N15
G24
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N17
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G22
N14N12N6E13
G16
NE5W5NW6NW5N10N13N9N11N10
2 days ago3SW12SW8N5W4S5SE9E4NW14W9NW7W4W6NW8NW10W7NW8NW12NW9N6N10N14
G19
N13
G20
N14
G22

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Pendleton, OR (13,3,4,5)
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Ground Weather Radar Station Boise, 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.