Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Bay Center, WA

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 6:22AMSunset 8:12PM Saturday August 24, 2019 2:14 PM PDT (21:14 UTC) Moonrise 11:55PMMoonset 2:42PM Illumination 32% Phase: Waning Crescent; Moon at 24 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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PZZ110 Grays harbor bar- 851 am pdt Sat aug 24 2019 combined seas 4 to 6 ft. Bar conditions light. Maximum ebb currents will occur around 1115 am Saturday and 1215 am Sunday.
PZZ100 851 Am Pdt Sat Aug 24 2019
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will continue through Monday before turning offshore on Tuesday as a thermal trough builds north along the west coast.


7 Day Forecast for Marine Location Near Bay Center, WA
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location: 46.63, -123.95     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 241529
afdpqr
area forecast discussion
national service portland or
828 am pdt Sat aug 24 2019

Synopsis A weak upper level disturbance slides north of the area,
bringing seasonable temperatures to the region. High pressure begins
to rebuild by late Sunday and strengthens over the pacific northwest
through early next week, with above normal temperatures across the
region expected.

Short term Saturday through Monday... No changes. Previous
discussion follows. Variable mid and high level clouds continue to
move across the region, as seen in the latest satellite imagery. A
weak upper level impulse continues to advance into southern british
columbia this morning, maintaining a westerly flow across the
pacific northwest. An associated weak front will enhance lift across
the northern portions of the forecast area through around midday
today as it passes across the area. This will bring some light rain
showers, mostly north of the columbia river from the long beach
peninsula east through around kelso. Some very light rain may
develop in the oregon coast range as far south as around banks and
forest grove, though very minimal amounts, if any, are likely. The
bigger impact, however, of this system will be enhanced morning
cloud cover and a slightly more humid air mass which will maintain
temperatures several degrees below seasonal normals for Saturday and
Sunday.

With increasing onshore low-level flow on Saturday night and Sunday,
expect more widespread clouds into the interior Sunday morning than
this morning. By late Sunday night and especially into Monday, 500 mb
heights build across the region build to 5800-5900m range as strong
high pressure builds across pacific northwest. This sets the stage
for a notable warm-up starting on Monday, with a warming air mass and
developing subsidence inversion. The low-level flow will begin to
turn more northerly, so expect less in the way of morning clouds and
a faster warm-up as a result. A thermal trough building over southern
oregon with continue to push north on Monday, and may even induce
some offshore low-level flow. If this doesn't occur Monday, it likely
will by Tuesday. Cullen

Long term Monday night through Friday... No changes. Previous
discussion follows. High pressure continue to strengthen into
Tuesday next week. Expect clear skies under the subsidence inversion
and strong high pressure to push temperatures well into the 90s
across the interior lowlands on Tuesday and likely Wednesday as
well. The trend in the last few runs of the model guidance has been
for a weaker offshore flow pattern to develop. This would enable a
faster return to onshore flow late in the week.

Additionally, remnant energy from a tropical cyclone may enhance the
breakdown of the upper ridge and also inject additional moisture in
the mid-levels of the atmosphere late Wednesday and into Thursday.

Forecast precipitable water values across the region are as high as
1.5-1.75" across portions of the forecast area during this time, and
the mid-level instability could be sufficient to get a few showers or
thunderstorms generated across a portion of the cascades. As a
result, have introduced a mention of thunderstorm chances in the area
around willamette pass Thursday evening. Also trended temperatures
few degrees cooler each of Thursday and Friday as a result of the
increasing moisture pushing across the region, but it looks to
nonetheless remain quite warm into the later portions of next week.

Cullen

Aviation MostlyVFR conditions observed early this morning, but a
slow moving cold front pushing onto the coast will bring more clouds
and some patchy showers to the coast and coast range today. Expect
MVFR conditions to develop along the north coastal areas this
morning, with local ifr conditions in areas of light rain through
midday, around 20z. Further south along the coast areas of MVFR cigs
are likely to develop later in the morning and in the afternoon,
after 18z. Along the entire coast, it is likely that once developed,
the MVFR conditions will persist overnight. Inland areas are expected
to remainVFR through the next 24 hours, except there is a good
chance for MVFR CIGS to develop and spread up the lower columbia
past kpdx and kttd after 10z.

Kpdx and approaches...VFR conditions are likely to prevail through
this evening. There is a good chance for seeing MVFR ceilings with
marine clouds spreading into the area after 11z Sunday morning.

Marine No changes. Previous discussion follows. A decaying cold
front has weakened the high pressure system over the NE pacific, so
winds will be lighter across the coastal waters today with speeds 15
kt or less. As this front dissipates, high pressure will reassert
itself over the NE pacific, causing n-nw winds to increase across
our coastal waters Sunday. Will issue a small craft advisory for our
southern waters Sunday afternoon and evening for the stronger winds
gusting up to 25 kt. It appears very likely that this advisory will
need to be extended through Monday afternoon and evening, as both
the high pressure system over the NE pacific and a thermal trough
over SW oregon intensify. Increasing wind wave component will result
in increasingly choppy seas Sunday and Monday.

The thermal trough over southern oregon is modeled to build
northward into the north oregon waters toward the middle of next
week. This may push the stronger winds further offshore Tuesday
and Wednesday, while lighter offshore flow prevails for the
coastal waters. Weagle pyle

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory from noon to 11 pm pdt Sunday for coastal
waters from cascade head or to florence or out 60 nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TOKW1 - 9440910 - Toke Point, WA 5 mi81 min NW 8.9 G 9.9 64°F 66°F1016.5 hPa
WPTW1 - 9441102 - Westport, WA 21 mi99 min WNW 9.9 G 11 62°F 63°F1016.3 hPa
46211 - Grays Harbor, WA (036) 22 mi45 min 62°F5 ft
46243 - Clatsop Spit, OR - 162 30 mi45 min 63°F4 ft
ASTO3 - 9439040 - Astoria, OR 31 mi75 min SW 2.9 G 6 64°F 69°F1016.8 hPa (+1.3)
46099 41 mi205 min NW 7.8 60°F 1015.8 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 44 mi85 min NNW 5.8 G 7.8 62°F 64°F5 ft1017.4 hPa (+1.6)60°F

Wind History for Toke Point, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA24 mi22 minW 138.00 miMostly Cloudy67°F60°F79%1017 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)
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Last 24hrW11W11NW7NW7NW5W7NW6NW7CalmNW4NW4CalmW4W4SW7SW5S5S7SW7SW6SW6SW6W10W13
1 day agoW9W10W10W9W9NW7W3NW5NW3NW3CalmCalmCalmCalmCalmN3CalmE3CalmE5SE5S3SW3W7
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Tide / Current Tables for Bay Center, Palix River, Willapa Bay, Washington
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Bay Center
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Sat -- 12:14 AM PDT     Moonrise
Sat -- 02:39 AM PDT     0.98 feet Low Tide
Sat -- 06:25 AM PDT     Sunrise
Sat -- 08:39 AM PDT     5.86 feet High Tide
Sat -- 02:20 PM PDT     3.07 feet Low Tide
Sat -- 03:41 PM PDT     Moonset
Sat -- 08:10 PM PDT     Sunset
Sat -- 08:11 PM PDT     7.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.91.91.111.93.14.25.15.75.85.44.63.83.43.13.24.25.76.87.67.97.775.7

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
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Sat -- 12:14 AM PDT     Moonrise
Sat -- 02:42 AM PDT     0.00 knots Slack
Sat -- 05:04 AM PDT     1.13 knots Max Flood
Sat -- 06:25 AM PDT     Sunrise
Sat -- 08:40 AM PDT     -0.00 knots Slack
Sat -- 11:22 AM PDT     -1.39 knots Max Ebb
Sat -- 02:17 PM PDT     0.00 knots Slack
Sat -- 03:43 PM PDT     Moonset
Sat -- 04:51 PM PDT     1.43 knots Max Flood
Sat -- 08:11 PM PDT     Sunset
Sat -- 08:19 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.4-1.8-0.80.30.91.110.80.5-0.3-1-1.4-1.3-1-0.30.71.31.41.20.80.2-0.6-1.7-2.5

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 (17,4,5,8)
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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.