Sunday, October22, 2017 L-36.com


Marine Weather and Tides
Grayland, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:43AMSunset 6:15PM Sunday October 22, 2017 3:49 PM PDT (22:49 UTC) Moonrise 9:30AMMoonset 7:20PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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- 257 Pm Pdt Sun Oct 22 2017
.small craft advisory for rough bar in effect through Monday evening... Combined seas 12 to 14 ft this evening, subsiding to 10 to 12 ft late tonight through Monday. Bar conditions rough, except severe during the ebb current this evening. Expect breakers at times, mainly during the ebbs. Maximum ebb currents will occur around 7 pm this evening and 715 am Monday.
PZZ100 257 Pm Pdt Sun Oct 22 2017
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will weaken this evening. A ridge will build over the pacific northwest giving offshore flow across western washington late tonight through Tuesday. A weak cold front will move southeast across the area Wednesday. Northerly offshore flow will prevail Thursday and Friday as a ridge builds over southern british columbia.

7 Day Forecast for Marine Location Near Grayland, WA
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location: 46.86, -124.07     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 222110
afdpqr
area forecast discussion
national weather service portland or
210 pm pdt Sun oct 22 2017

Synopsis Decreasing showers through tonight. Then high pressure
builds over the region, with dry weather for much of the coming week.

Exception will be some threat of showers Wed wed night. Otherwise,
dry, with mild days and coolish nights, along with areas of late
night morning fog and low clouds. Bit stronger offshore flow later in
the week may well keep most areas fog free.

Short term Tonight through Tuesday... Westerly flow aloft over the
region, with variable clouds over the region. Air mass not all that
much colder, so shower activity is not all that widespread or
organized. Will keep scattered showers this evening for most areas,
with decreasing trend overnight. With the westerly flow, showers will
be most common against the cascades, and to some degree, over the
coast range and willapa hills. Snow levels remain well above the
passes, generally 7000 to 8000 feet.

High pressure will build over the region later tonight, and
especially mon. This will end the shower threat overnight. But with
breaks in the cloud cover, and moist ground with light winds, will
see fog low clouds form later tonight, with most it being most
extensive between 5 am and 10 am mon. Would not be surprised to see
locally dense fog as well. Extent and timing of onset of fog will
depend lot on how much the higher clouds break.

Once the cloud clouds fog dissipates later Mon am, will see sunshine
and mild temperatures across much the region. Will trend light
offshore Mon night through tue. Think may be enough to keep fog
patchy at worst along the coast, but still areas of fog and low
clouds for interior valleys. Again, like Monday, fog low clouds will
dissipate later Tue am, leaving region sunny and mild.

Hydrology Most rivers levels are dropping slowly. Still have some
concern for a few rivers, namely tualatin and luckiamute as they
could still reach flood stage. Will keep flood watch for parts of
northwest oregon. Otherwise, flood warnings remain in effect for the
grays, siletz, and clackamas rivers. rockey.

Long term Tuesday night through Saturday... No changes. Previous
forecasts is as follows: strong ridge of high pressure will buckle
slightly Wednesday, allowing the tail end of a cold front to clip
mainly our northern zones with a chance for showers. Models show
decent agreement that we will otherwise be dry through Saturday as a
strong upper ridge builds over the NE pacific and pacific northwest.

Given all the rain we have had this weekend, there will be plenty of
ground moisture for fog in the valleys. This may cause some
challenges regarding sky cover and temperatures later in the week as
valley inversions become established. Strengthening inversions may
also result in air quality and stagnation issues later this week.

Cooler air east of the cascades may support high pressure there and
east winds through the gorge, which would tend to limit the fog and
air stagnation issues in the portland metro area, but it is difficult
to tell these details this far out in time. Weagle.

Aviation Vfr prevailing with scattered showers this afternoon
and evening. High pressure will build over the area overnight and
clouds will thin. This will lead to a mixture of fog and low
stratus late tonight and Mon morning. Fog will probably have less
coverage than stratus, but expect areas of low MVFR to ifr
conditions.

Kpdx and approaches...VFR prevailing with scattered showers.

Showers end this evening with fog or low stratus developing
overnight with low MVFR to ifr conditions expected Mon morning.

Marine Winds continue to ease this afternoon, but showers
bringing some gusts to near 20 kt. Winds will continue to
decrease tonight as high pressure builds over the waters and
inland. High pressure remains through the first part of this
week. An inverted surface trough along the coast strengthens mon
night and tue, which will produce northerly wind gusts around
20-25 kt. This will be short lived as a weak cold front drops
south into our waters on wed, bringing moderate small craft
northerlies behind this feature. The inverted surface trough
under high pressure returns late in the week with small craft
advisory wind speeds possible.

Seas in the 12 to 14 ft range this afternoon will slowly subside
to below 10 ft late Mon afternoon or evening. With dominant wave
periods still around 12 seconds, seas will continue to be steep.

From Tue through Fri seas remain in the 6 to 9 ft range.

Pqr watches warnings advisories
Or... Flood watch through late tonight for part of northwest
oregon, mainly north of a lincoln city to albany to
santiam pass line.

Wa... None.

Pz... Small craft advisory for hazardous seas through Monday
evening on all coastal waters.

Small craft advisory for rough columbia river bar
tonight through 9 am Monday.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPTW1 - 9441102 - Westport, WA 4 mi73 min SW 8.9 G 12 57°F 54°F1024.9 hPa
46211 - Grays Harbor, WA (036) 9 mi49 min 54°F13 ft
TOKW1 - 9440910 - Toke Point, WA 12 mi49 min SW 8.9 G 13 57°F 54°F1025.9 hPa (+2.4)
46099 28 mi179 min 56°F 54°F1023.2 hPa
46243 - Clatsop Spit, OR - 162 45 mi49 min 55°F11 ft
46096 48 mi139 min W 14 G 16 49°F 55°F1025.7 hPa
46100 48 mi179 min SW 7.8 56°F 54°F1023 hPa
ASTO3 - 9439040 - Astoria, OR 48 mi49 min S 4.1 G 6 57°F 57°F1026 hPa (+2.2)
46041 - CAPE ELIZABETH- 45NM Northwest of Aberdeen, WA 49 mi59 min SSW 7.8 G 9.7 55°F 53°F14 ft1024 hPa (+3.0)

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA10 mi56 minSSW 105.00 miFog/Mist58°F55°F90%1025.5 hPa

Wind History from HQM (wind in knots)
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1 day agoSW11SW12S11S8SE11E8E8NE6E8E8E12NE10NE11NE15E11NE10NE10NE10NE8NE8NE9NE9E9NE9
2 days agoSE9S6S10SW11
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Tide / Current Tables for Bay City, South Bay, Grays Harbor, Washington
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Bay City
Click for Map
Sun -- 03:26 AM PDT     8.93 feet High Tide
Sun -- 07:44 AM PDT     Sunrise
Sun -- 08:43 AM PDT     2.78 feet Low Tide
Sun -- 10:28 AM PDT     Moonrise
Sun -- 03:01 PM PDT     10.08 feet High Tide
Sun -- 06:15 PM PDT     Sunset
Sun -- 08:20 PM PDT     Moonset
Sun -- 09:20 PM PDT     -0.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.36.488.88.77.764.33.12.83.656.88.49.610.19.57.85.53.11.1-00.11.3

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Sun -- 12:40 AM PDT     2.22 knots Max Flood
Sun -- 03:40 AM PDT     -0.01 knots Slack
Sun -- 06:42 AM PDT     -2.42 knots Max Ebb
Sun -- 07:45 AM PDT     Sunrise
Sun -- 09:26 AM PDT     0.00 knots Slack
Sun -- 10:29 AM PDT     Moonrise
Sun -- 12:10 PM PDT     1.95 knots Max Flood
Sun -- 03:19 PM PDT     -0.01 knots Slack
Sun -- 06:16 PM PDT     Sunset
Sun -- 06:52 PM PDT     -3.42 knots Max Ebb
Sun -- 08:20 PM PDT     Moonset
Sun -- 10:10 PM PDT     0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.12.21.90.9-0.5-1.7-2.3-2.4-1.8-0.60.71.61.91.81.30.4-1-2.4-3.2-3.4-3-1.8-0.31

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (18,4,5,8)
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Ground Weather Radar Station Portland, OR
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weather_mapweather_map weather_map

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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.