Friday, August23, 2019 L-36.com


Marine Weather and Tides
Cannon Beach, 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 6:21AMSunset 8:08PM Friday August 23, 2019 12:31 PM PDT (19:31 UTC) Moonrise 11:17PMMoonset 1:33PM Illumination 43% Phase: Third Quarter Moon; Moon at 23 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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PZZ250 Coastal Waters From Cape Shoalwater Wa To Cascade Head Or Out 10 Nm- Waters From Cape Shoalwater Wa To Cascade Head Or From 10 To 60 Nm- 225 Am Pdt Fri Aug 23 2019
Today..N wind 10 to 15 kt. Wind waves N 3 ft at 4 seconds. NW swell 4 ft at 8 seconds.
Tonight..NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Wind waves nw 2 ft at 4 seconds. NW swell 4 ft at 9 seconds.
Sat..NW wind 5 to 10 kt. Wind waves W 2 ft at 4 seconds. W swell 6 ft at 10 seconds.
Sat night..N wind 10 to 15 kt. Wind waves N 3 ft at 4 seconds. W swell 6 ft at 12 seconds.
Sun..N wind 10 to 15 kt. Wind waves N 3 ft at 4 seconds. NW swell 7 ft at 11 seconds.
Sun night..N wind 15 kt with gusts to 20 kt. Wind waves N 4 ft at 5 seconds. NW swell 7 ft at 10 seconds.
Mon..N wind 20 to 25 kt. Wind waves 5 ft. NW swell 6 ft.
Tue..N wind 20 to 25 kt. Wind waves 5 ft. NW swell 6 ft.
PZZ200 225 Am Pdt Fri Aug 23 2019
Synopsis for the southern washington and northern oregon coast.. High pressure over the waters with a thermal low along the north california and south oregon coast will continue through Friday. A trough temporarily weakens the high pressure during the weekend.


7 Day Forecast for Marine Location Near Cannon Beach, OR
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location: 45.83, -123.94     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 231850 aaa
afdpqr
area forecast discussion... Update
national service portland or
1150 am pdt Fri aug 23 2019
updated aviation discussion

Synopsis Seasonable weather through this weekend, with areas of
morning clouds. Warmer weather is expected next week with interior
temperatures likely warming into the upper 80s to lower 90s.

Short term Today through Monday... Satellite imagery shows mostly
clear skies early this morning with stratus forming just offshore of
the south washington coast. Light north to northwest winds should
expand the stratus south along the coast and inland up the lower
columbia river valley this morning, but do not expect the low clouds
to make it to the portland vancouver metro area due to an upper
ridge. Increased sunshine this morning will allow for slightly warmer
temperatures this afternoon than what was observed yesterday
(Thursday).

An upper trough approaching british columbia will flatten the upper
ridge today for a more zonal weather pattern that will persist
through Sunday. A surface low associated with the upper trough to the
north will form a weak surface front that will brush by the south
washington coast and willapa hills on Saturday. This will result in
increased clouds along the coast and extreme SW washington, and
occasional light rain. This weak front and clouds will result in
slight cooling Saturday afternoon. Seasonal weather is expected for
Sunday with clouds returning to the coast and parts of the willamette
valley in the morning and clearing in the afternoon continuing
seasonal temperatures, that will be slightly warmer than Saturday.

The upper ridge begins to amplifies on Monday beginning a warming
trend. ~tj

Long term No changes. Previous discussion follows... Monday night
through Thursday... Stronger ridging builds next week, but confidence
remains low in exactly how hot temperatures will get. Models diverge
by Tuesday regarding the location and strength of thermal troughing,
which will have a significant impact on temperatures. If troughing
builds such that we end up with strong offshore flow, temperatures
next week could be quite hot - at least in the mid 90s for a day or
two. But if offshore flow is limited, temperatures will remain
slightly more moderate, maybe reaching 90 for a couple of days. The
place with the biggest swing based on the flow pattern will be the
coast, which can get just as hot or even hotter than inland areas
with strong offshore flow but otherwise remains quite moderate.

Didn't make a ton of changes to the forecast temperatures in the long
term period due to significant model changes in the last 24 hours and
previously mentioned model discrepancies. Bowen

Aviation MVFR CIGS return to the coast late this afternoon but
more likely tonight. Expect some -ra or -dz from about ktmk
northward on the coast after 11z Saturday. For inland locations,
expectVFR conditions through 18z Saturday.

Kpdx and approaches...VFR. Light winds becoming northwest around 10
kt later this afternoon through evening hours. Mh bowen

Marine High pressure over the waters will weaken this
morning, relaxing the winds over the waters. The high pressure
continues weaken into the weekend as a weak trough moves
through. The high pressure strengthens again early next week for
a return to a more typical summer pattern.

Seas around 6 feet will continue through the weekend, the likely
build a couple of feet as more persistent northerly winds develop
early next week. Mh

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 19 mi49 min 61°F1014.6 hPa
46096 26 mi51 min N 14 G 16 58°F 63°F1014.8 hPa
46243 - Clatsop Spit, OR - 162 28 mi31 min 63°F4 ft
ASTO3 - 9439040 - Astoria, OR 28 mi43 min WSW 1.9 G 4.1 65°F 69°F1014.1 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 36 mi41 min N 14 G 16 60°F 62°F4 ft1015.6 hPa (-0.6)54°F
46248 - Astoria Canyon, OR (179) 43 mi31 min 62°F4 ft

Wind History for Garibaldi, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR23 mi96 minNNW 810.00 miFair63°F55°F76%1015.1 hPa

Link to 5 minute data for KAST

Wind History from AST (wind in knots)
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Last 24hrN8NW7W10NW11NW11NW12NW12NW10NW12N8CalmCalmSE4SE3SE4E3CalmCalmSE5SE4CalmE4N8NW4
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SW12W5NW6NW11NW9NW13NW7N4NW4CalmCalmSE3SE3S5SE4SE3CalmSE3Calm3NW6N7
2 days agoSW10SW9SW9SW13
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S7S5CalmSE4SE4SE4CalmCalmSE3SE3W3E3CalmE5E7NE6S11
G21

Tide / Current Tables for Nehalem, Nehalem River, Oregon
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Nehalem
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Fri -- 01:45 AM PDT     1.19 feet Low Tide
Fri -- 06:25 AM PDT     Sunrise
Fri -- 07:17 AM PDT     4.70 feet High Tide
Fri -- 07:58 AM PDT     Last Quarter
Fri -- 01:06 PM PDT     2.11 feet Low Tide
Fri -- 02:32 PM PDT     Moonset
Fri -- 06:57 PM PDT     6.48 feet High Tide
Fri -- 08:10 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.81.31.21.72.53.54.34.74.64.23.52.92.32.12.33.14.25.36.26.56.35.64.73.6

Tide / Current Tables for Brighton, Nehalem River, Oregon
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Brighton
Click for Map
Fri -- 12:43 AM PDT     1.59 feet Low Tide
Fri -- 06:25 AM PDT     Sunrise
Fri -- 06:51 AM PDT     5.16 feet High Tide
Fri -- 07:58 AM PDT     Last Quarter
Fri -- 12:04 PM PDT     2.82 feet Low Tide
Fri -- 02:32 PM PDT     Moonset
Fri -- 06:31 PM PDT     7.11 feet High Tide
Fri -- 08:10 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.71.622.73.64.555.24.94.33.63.12.833.64.65.66.577.16.65.64.43.2

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 Portland, OR (15,3,4,5)
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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.