Sunday, August25, 2019 L-36.com


Marine Weather and Tides
Depoe Bay, OR

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:26AMSunset 8:04PM Sunday August 25, 2019 6:16 PM PDT (01:16 UTC) Moonrise 12:02AMMoonset 3:42PM Illumination 21% Phase: Waning Crescent; Moon at 25 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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PZZ255 Coastal Waters From Cascade Head To Florence Or Out 10 Nm- 259 Pm Pdt Sun Aug 25 2019
.small craft advisory in effect through Monday evening...
Tonight..N wind 20 to 25 kt. Gusts to 25 kt, becoming 30 kt until early morning. Wind waves N 5 ft at 7 seconds. W swell 5 ft at 11 seconds.
Mon..N wind 20 to 25 kt. Wind waves N 5 ft at 7 seconds. W swell 5 ft at 10 seconds.
Mon night..N wind 20 to 25 kt. Gusts to 30 kt in the evening. Wind waves N 6 ft at 7 seconds. W swell 4 ft at 10 seconds.
Tue..N wind 10 to 15 kt with gusts to 20 kt. Wind waves N 3 ft at 5 seconds. NW swell 4 ft at 10 seconds.
Tue night..N wind 15 kt with gusts to 20 kt, becoming se 5 kt after midnight. Wind waves N 4 ft at 5 seconds, shifting to the se 2 ft at 4 seconds after midnight. W swell 4 ft at 10 seconds.
Wed..S wind 5 to 10 kt. Wind waves 2 ft. W swell 4 ft.
Wed night..S wind 10 kt with gusts to 15 kt. Wind waves 2 ft. W swell 4 ft.
Thu..S wind 5 to 10 kt. Wind waves 2 ft. NW swell 4 ft.
Fri..SW wind 5 to 10 kt. Wind waves 2 ft. NW swell 3 ft.
PZZ200 259 Pm Pdt Sun Aug 25 2019
Synopsis for the southern washington and northern oregon coast.. High pressure will continue to strengthen over the ne pacific, while thermal low pressure builds northward along the southern or coast. Thermal low pressure is expected to continue building northward into western oregon through Tuesday. A southerly wind reversal appears likely on Wednesday.


7 Day Forecast for Marine Location Near Depoe Bay, OR
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location: 44.8, -124.19     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 252155
afdpqr
area forecast discussion
national service portland or
255 pm pdt Sun aug 25 2019

Synopsis High pressure aloft strengthens early this week over the
pacific northwest with offshore low-level flow developing Monday and
Tuesday. This will bring hot weather to the region, lasting until
mid-week.

Short term Sunday through Tuesday... Models continue to show hot
weather returning early this week as the current zonal flow aloft is
pushed north by a strengthening ridge just off the coast. The ridge
appears to reach maximum strength Tuesday before the axis shifts
east of the cascades Wednesday. The low level flow is expected to
turn more northerly tonight and Monday as a surface ridge of high
pressure pushes inland into british columbia. This will begin to dry
the low levels, and should limit late night and morning marine
clouds mostly to the northern coastal areas.

The low level flow takes on more of an easterly component Monday
night through Tuesday as a thermal-induced surface trough of low
pressure builds north up the coast. As inland 850 mb temperatures
climb into the 20-22c range by 00z Wed and the offshore flow extends
to the coast, will see very warm temperatures over most of the
forecast area including the coast Tuesday. With a mild night
expected due to presence of the surface trough both Monday night and
Tuesday night, we may see some inland low elevation locations in the
valleys and cascade foothills nearing heat advisory criteria.

On Wednesday models agree on shifting the thermal induced trough
inland, turning the low level flow back to onshore. The upper ridge
however only weakens slightly, so air mass remains quite warm with
850 mb temperatures remaining 22c or even a little warmer. The upper
level flow however opens up to the south in advance of a couple of
shortwaves lifting north towards the region. This should allow some
mid or high level clouds to begin to spread into the region which
coupled with a modest onshore flow will bring cooler temperatures to
the coast, and perhaps a few degrees cooling to the interior.

Long term Wednesday night through Sunday... Wednesday night, a
ridge set up over the pacific northwest becomes negatively tilted
and the flow becomes more south-southwesterly. An marine push will
bring cloud cover to much of northwest oregon southwest washington
Wednesday night which will allow temperatures to cool slightly,
albeit remaining quite warm, on Thursday. In addition to the onshore
flow, a short wave trough, stemming from the south pacific, is
wrapped in ample moisture and advecting over the area through the
flow of the ridge. As the shortwave moves inland, the combination of
increased precipitable water and southerly flow sets the environment
up for a chance of rain showers west and along the crest of the
cascades. Thursday, with increased moisture, the shortwave
intensifying instability and daytime heating, there is a slight
chance of thunderstorms along the crest through the afternoon. Once
this shortwave passes through the area on Thursday, the persistent
ridge over the area will keep conditions dry, and a typical summer
pattern of morning clouds with afternoon clearing will be the norm
through the weekend. -muessle

Aviation ExpectVFR conditions under mostly clear skies
through this evening. High pressure strengthens tonight which
should allow a strong, but shallow, marine layer to develop in
the interior and bring localized MVFR stratus to areas east of
i-5. Suspect coverage in the interior tomorrow morning will be
similar to this morning. The forecast for the coast is a little
more tricky. With weak onshore flow we should see some MVFR
stratus redevelop tonight, especially along the north coast, but
as the winds start to become more offshore tomorrow morning this
status should dissipate quickly resulting in widespreadVFR
conditions by late tomorrow morning.

Kpdx and approaches...VFR conditions under mostly clear skies
expected through tonight. We could see some MVFR stratus move
onto the terminal between 13-17z tomorrow morning, but like today
any flight restrictions should be brief. 64

Marine High pressure continues to strengthen over the NE pac
today with thermal low pressure building along the south oregon
coast. This will cause n-nw winds to increase across our coastal
waters this afternoon, with gusts to 25 kt likely south of
tillamook head. While there may be some brief easing near the
immediate coastline late tonight and early Monday morning, winds
will remain strong beyond 5-10 nm offshore. Winds strengthen
further Monday afternoon and evening, with local gale force gusts
to 35 kt possible across our southern waters, especially near
capes. These strong winds will drive very steep wind waves,
with seas as high as 9 ft with average periods of 6 or 7 seconds.

The thermal trough over southern oregon will build northward into
the north oregon waters Tuesday and Wednesday. This may push the
stronger winds further offshore by midweek, and may open the door
for a southerly wind reversal on Wednesday. 64 weagle

Pqr watches warnings advisories
Or... Fire weather watch from Monday afternoon through Tuesday
evening for east slopes of the central oregon coast range-
north oregon coast range-willamette valley.

Wa... Fire weather watch from Monday afternoon through Tuesday
evening for clark county lowlands.

Pz... Small craft advisory until 11 am pdt Tuesday for waters from
cape shoalwater wa to florence or from 10 to 60 nm.

Small craft advisory until 11 pm pdt Monday for coastal waters
from cascade head to florence or out 10 nm.

Small craft advisory until 11 pm pdt this evening for coastal
waters from CAPE shoalwater wa to cascade head or out 10
nm.

Small craft advisory from noon to 11 pm pdt Monday for coastal
waters from CAPE shoalwater wa to cascade head or out 10
nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBEO3 - 9435380 - South Beach, OR 14 mi47 min NNW 13 G 23 64°F 53°F1020.8 hPa
NWPO3 - Newport, OR 14 mi17 min N 22 G 25 58°F
46050 - STONEWALL BANKS - 20NM West of Newport, OR 19 mi27 min N 23 G 27 8 ft1022.1 hPa

Wind History for South Beach, Yaquina River, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Newport, Newport Municipal Airport, OR17 mi42 minN 17 G 257.00 miFair63°F55°F77%1022 hPa

Link to 5 minute data for KONP

Wind History from ONP (wind in knots)
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Last 24hrNW9----N5----------CalmCalmCalmCalmCalmCalmNE5NW7N10N12
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1 day agoN11
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N13--N3--CalmCalmCalmCalmCalmCalmNE3E3CalmCalmSW3NW5SW4W7W5NW7NW7NW8N8
2 days agoN12
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N7--N8CalmCalm--NE4E3E3E4E5CalmNE3E3E3NW9N11N11N11
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NW11N13N16
G19

Tide / Current Tables for Depoe Bay, Oregon
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Kernville, Siletz River, Oregon
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Kernville
Click for Map
Sun -- 01:01 AM PDT     Moonrise
Sun -- 03:56 AM PDT     0.52 feet Low Tide
Sun -- 06:29 AM PDT     Sunrise
Sun -- 10:12 AM PDT     4.06 feet High Tide
Sun -- 03:18 PM PDT     2.26 feet Low Tide
Sun -- 04:40 PM PDT     Moonset
Sun -- 08:05 PM PDT     Sunset
Sun -- 09:04 PM PDT     5.76 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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32.11.20.70.50.81.52.33.23.843.93.532.52.32.42.93.74.75.45.85.65

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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Wind Forecast for Portland, OR (21,6,7,8)
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Ground Weather Radar Station Portland, OR
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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.