Saturday, January19, 2019 L-36.com


Marine Weather and Tides
Cannon Beach, 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 7:44AMSunset 5:02PM Saturday January 19, 2019 6:23 PM PST (02:23 UTC) Moonrise 3:37PMMoonset 6:23AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 253 Pm Pst Sat Jan 19 2019
.small craft advisory for hazardous seas in effect through Sunday afternoon...
Tonight..E wind 5 to 10 kt with gusts to 15 kt. Wind waves se 1 ft at 4 seconds. W swell 14 ft at 12 seconds. Chance of showers before dark, then rain in the evening. Showers after midnight.
Sun..E wind 5 to 10 kt. Wind waves E 1 ft at 4 seconds. W swell 12 ft at 12 seconds, subsiding to 9 ft at 11 seconds in the afternoon. Showers.
Sun night..N wind 10 kt with gusts to 15 kt. Wind waves N 2 ft at 4 seconds. W swell 6 ft at 10 seconds. Showers in the evening. Patchy fog after midnight.
Mon..NW wind 5 to 10 kt. Gusts to 15 kt in the morning. Wind waves nw 2 ft at 4 seconds. W swell 7 ft at 10 seconds.
Mon night..S wind 10 to 15 kt with gusts to 20 kt. Wind waves S 4 ft at 4 seconds. W swell 6 ft at 10 seconds. Rain.
Tue..S wind 15 to 20 kt with gusts to 25 kt. Wind waves 5 ft. W swell 5 ft. Rain.
Tue night..S wind 15 to 20 kt with gusts to 25 kt. Wind waves 5 ft. W swell 9 ft. Rain.
Wed..W wind 10 to 15 kt. Wind waves 4 ft. W swell 13 ft.
Thu..NE wind 5 to 10 kt. Wind waves 2 ft. W swell 11 ft.
PZZ200 253 Pm Pst Sat Jan 19 2019
Synopsis for the southern washington and northern oregon coast.. Low pressure well off the central oregon coast Sunday dives south and weakens Sunday night. High pressure builds back over the waters on Monday followed by a cold front late Monday night and Tuesday.


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 192240
afdpqr
area forecast discussion
national weather service portland or
240 pm pst Sat jan 19 2019

Synopsis A series of fronts will produce rain and cascade snow
tonight through Monday morning. There will be a brief break in the
rain Monday before another series of fronts bring another round of
rain and cascade snow Monday night through Wednesday. High pressure
and dry weather is likely late in the week and possibly through next
weekend.

Short term Tonight through Tuesday... Rain is mostly limited to the
lane county cascades and cascade foothills late this afternoon as a
front stalls across SW oregon. The front will move north back over nw
oregon tonight as a trough deepens over the NE pacific. This front
will spread rain and cascade snow tonight through Sunday morning. The
highest rainfall will be south of salem, and expect little to no rain
across SW washington. The oregon coast and coast range between
florence and lincoln city, the central willamette valley, and the
south willamette valley can expect 0.3 to 0.8 inch of rain tonight
through Sunday morning. Higher totals are expected over the oregon
cascade foothills where 0.5 to 1 inch is expected. Rainfall totals
north of salem including the portland metro area will be be between
0.15 and 0.30 inch.

The snow level will be around 4500 feet, and expect travel
difficulties across the cascade passes tonight and Sunday morning,
and have issued a winter weather advisory for the oregon cascades for
elevations above 4500 feet.

A shortwave trough moves over the region Sunday afternoon through
Monday morning continuing showers. The showers will again be
concentrated south of salem where an additional 0.2 to 0.5 inch of
rain is possible Sunday afternoon through Monday morning. Snow levels
will be around 3500 feet where 2 to 4 inches of new snow is possible.

Drier and sunnier weather is expected for Monday as high pressure
moves into the area. Clearing skies, lingering surface moisture, and
light winds will likely lead to areas of fog in the interior valleys
and along the coast early Monday morning, mainly north of salem.

Astronomical high tides may result in minor flooding along the south
washington and north oregon coasts each afternoon through at least
Monday and the coastal flood advisory for tidal overflow continues.

A surface low moving onto the british columbia coast will bring a
warm front across SW washington and NW oregon Monday night and
Tuesday. Snow levels will start at low around 2500 feet with the
onset of precipitation, but rise rapidly rise to above 5000 feet
limiting snow totals. ~tj

Long term Tuesday night through Saturday... Tuesday night into
Wednesday has a quasi-stationary front over the area. This feature
will keep precipitation chances up, which will be reinforced by the
next cold front associated with an alaskan low according to the gfs.

The ECMWF on the other hand has the quasi-stationary front over the
area, but it lacks the reinforcing alaskan low seen in the GFS for
the same time frame. Noting this disagreement I have leaned into the
gfs and climatology. The models then snap back into agreement, as
they both show a ridge of high pressure developing over the area on
Friday and will be the major feature through the weekend. Overall
precipitation chances will increase for the middle of next week, but
will slowly decrease as the weekend approaches. Temperatures are
expected to be on the mild side, with snow levels above 4500 to 5000
feet through the extended period of time. 42

Aviation 00z TAF package expectations: another low pressure
area will approach the coast this evening moving over southwest
oregon early Sunday evening. This will lift rain, light winds,
and lower CIGS north across the area. Only have moderate
confidence regarding the details, but expect MVFR CIGS overnight
to last into Sunday afternoon. Exception will be for keug and
konp where periods of vlifr conditions under low clouds and vsby
are expected overnight and Sunday morning.

Kpdx and approaches... ExpectVFR conds through about 20 06z when
rain will return. Added rain should bring a drop in vsby as
lower levels moisten up some. Main impact will be after 20 13z
when surface winds go vrb which allows lower clouds to also
develop. May not see much improvement with ifr conds continuing
through 20 18z. Feel modestly confident conds will improve to
MVFR CIGS around 020 by 20 20z along withVFR vsbys. Jbonk

Marine Winds have eased as expected, but seas are stubbornly
holding up longer than expected. A 20 ft wsw swell is
occasionally appearing at buoy 89. It seems to be headed north
of the columbia as buoy 29 is holding steady around 18 ft.

Unfortunately satellite based wave data nor other buoys are
helping to determine much how much longer we can expect the
elevated seas. Ww3 forecast data would imply there should be a
3-5 ft drop in combined wave height over the next several hour,
however, so will continue that trend but using the slightly
higher starting point.

Sunday, a weak low pressure system approaches and clips our
waters as it dives south Sunday night and Monday. This may bring
another round of small craft advisory winds to the central
oregon outer waters late Sunday night and will wait to see what
the next set of model runs brings before issuing and advisory since
it's very marginal. Seas will continue to ease finally falling
below 10 ft around mid-day Sunday.

Benign conditions continue into Monday as high pressure once
again builds over our waters. Late Monday night, a large surface
low moves across the alaskan panhandle dragging another front
across the waters. The model consensus is now a little weaker
with this front with gusts more likely to run 20-30 kt through
Tuesday night. Seas should return toward the low to middle
teens.

Another low pressure center crosses the central bc coast
Wednesday morning then slides south along the coast. Might get
gusts around 25 kt as it nears puget sound and weakens. Seas will
continue above 10 ft from the previous system and then appear to fall
below 10 ft Thursday afternoon. Jbonk

Pqr watches warnings advisories
Or... Coastal flood advisory from 11 am to 2 pm pst Sunday for north
oregon coast.

Coastal flood advisory from noon to 3 pm pst Monday for north
oregon coast.

Winter weather advisory from 10 pm this evening to noon pst
Sunday for cascades in lane county-northern oregon
cascades.

Wa... Coastal flood advisory from 11 am to 2 pm pst Sunday for south
washington coast.

Coastal flood advisory from noon to 3 pm pst Monday for south
washington coast.

Pz... Small craft advisory for hazardous seas until 1 pm pst Sunday
for coastal waters from CAPE shoalwater wa to florence or
out 60 nm.

Small craft advisory for rough columbia river bar until 8 am
pst Sunday.

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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 mi41 min 50°F1022.4 hPa
46243 - Clatsop Spit, OR - 162 28 mi53 min 51°F17 ft
ASTO3 - 9439040 - Astoria, OR 28 mi35 min SSE 4.1 G 5.1 50°F 44°F1021.3 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 36 mi33 min S 7.8 G 12 51°F 52°F18 ft1021.6 hPa (+0.0)48°F
46248 - Astoria Canyon, OR (179) 43 mi53 min 52°F19 ft

Wind History for Garibaldi, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR23 mi28 minSSE 35.00 miFog/Mist49°F46°F93%1021.5 hPa

Wind History from AST (wind in knots)
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Tide / Current Tables for Nehalem, Nehalem River, Oregon
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Nehalem
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Sat -- 05:12 AM PST     2.50 feet Low Tide
Sat -- 06:22 AM PST     Moonset
Sat -- 07:49 AM PST     Sunrise
Sat -- 10:37 AM PST     8.57 feet High Tide
Sat -- 03:37 PM PST     Moonrise
Sat -- 05:03 PM PST     Sunset
Sat -- 06:29 PM PST     -0.89 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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65.54.73.72.92.52.83.95.57.28.38.57.96.753.11.3-0.1-0.8-0.70.323.85.4

Tide / Current Tables for Brighton, Nehalem River, Oregon
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Brighton
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Sat -- 04:10 AM PST     3.34 feet Low Tide
Sat -- 06:22 AM PST     Moonset
Sat -- 07:49 AM PST     Sunrise
Sat -- 10:11 AM PST     9.40 feet High Tide
Sat -- 03:38 PM PST     Moonrise
Sat -- 05:03 PM PST     Sunset
Sat -- 05:27 PM PST     -1.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.45.74.73.83.33.64.55.97.58.89.49.186.13.81.6-0.1-1.1-1-0.11.63.55.36.5

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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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.