Thursday, August24, 2017 L-36.com


Marine Weather and Tides
Bay Center, 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 6:24AMSunset 8:09PM Thursday August 24, 2017 3:24 AM PDT (10:24 UTC) Moonrise 8:41AMMoonset 8:53PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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- 243 am pdt Thu aug 24 2017 combined seas 4 or 6 ft. Bar conditions light. The maximum ebb currents will occur around 7 am and 730 pm today. The morning ebb will be strong. PZZ100 243 Am Pdt Thu Aug 24 2017
Synopsis for the northern and central washington coastal and inland waters..Onshore flow today will weaken tonight and Friday. Light northerly flow will prevail this weekend, with the flow trending weakly offshore on Monday.

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 232156
afdpqr
area forecast discussion
national weather service portland or
256 pm pdt Wed aug 23 2017

Synopsis A weak front will bring a chance for some very light
rain, increased clouds, and cooler temperatures through Thursday.

High pressure aloft quickly rebuilds across the pacific northwest
Saturday, for a return of very warm temperatures by the end of the
weekend. Hot conditions will remain through the first portion of next
week as the upper level ridge remains in place.

Short term Tonight through Saturday... A somewhat complex cloud
pattern evident on visible satellite imagery this afternoon with
several cloud layers apparent. Lower clouds continue to scatter and
mix out along most of the area, though a few pockets of overcast
stratus remain along the central portions of the oregon coast. A line
of clouds associated with southwest flow aloft ahead of an
approaching upper trough has been thick enough to produce some light
sprinkles across portions of the willamette valley this afternoon.

Expect this to continue as the line slowly advances east-northeast
across the region, so have added sprinkles to the forecast for the
eastern half of the willamette valley into the foothills through the
evening.

A weak front currently offshore will slide across the forecast area
overnight through early Thursday. This will increase the spatial
extent of cloud cover overnight through early Thursday, as well as
bring some chances for very light rain across the region overnight.

Still expect amounts to be very light, but most locations will likely
see at least trace amounts of rain. With the deeper cloud layer, have
also maintained mention of light drizzle for much of the day
Thursday. Forecast model soundings support a rather deep saturated
layer, and with the approach of the upper trough, suspect that there
will be enough support for some ongoing drizzle through the day.

While accumulations look to be little, if any, would not be surprised
to see one or two sites reach 0.05" total accumulation if the
saturated layer is as deep as models suggest. Thursday will be on the
cooler side, with afternoon high temperatures in the mid 70s across
the interior.

Shortwave ridging slowly pushing eastward into the pacific northwest
should warm temperatures closer to climatological normals on Friday,
with widespread sunshine on Friday. An even warmer day in store
across the interior on Saturday as 500 mb heights climb to near 590
dam and 850 mb temperatures reach near 20 degrees c per latest model
guidance. Cullen

Long term Saturday night through Wednesday... Temperatures remain
rather warm for the start of next week, with at least a few days
reaching into the 90s across the interior portions of the forecast
area. Models have fluctuated a bit with respect to the placement of
the thermal trough through the weekend, but it appears likely that
offshore low-level winds will develop at some point late Saturday
through Monday, which will be responsible for additional warming.

This shift in winds will also allow some smoke from nearby wildland
fires in the cascades to filter back into the region Sunday and
Monday. Have maintained a dry forecast through the middle of the week
for now, though there will perhaps be a window for some thunderstorms
to develop as the upper level ridge breaks down around midweek.

Cullen

Aviation The coast will continue to see a mix of flight
conditions this afternoon as marine stratus continues to play
peek-a-boo with the terminals. Expect stratus to eventually
consolidate at the coast this evening with conditions becoming
predominately MVFR, but local ifr fog is possible. Otherwise, the
interior will remainVFR through tonight. A weak front will move
across the forecast area late tonight early Thu and bring reduced
cigs along with some light rain drizzle to the forecast area.

Conditions in the interior will likely becomeVFR Thu afternoon,
but the coast will likely remain below MVFR.

Kpdx and approaches...VFR through tonight. A weak front will
impact the terminal late tonight early Thu and bring a period
of MVFR CIGS and possibly some light rain drizzle. Conditions
look to becomeVFR by Thu afternoon. 64

Marine A decaying cold front will move across the waters later
this evening and tonight. Post-frontal winds may bring a brief
period of advisory gusts late tonight, but given the short
duration of the strongest wind decided to continue to not
headline any hazards. High pressure rebuilds behind the front
late tonight, with thermal low pressure strengthening as we go
into the weekend. Expect winds to generally remain below 20 kt
through Thursday. SCA gusts to 25 kt are possible Friday over
the central waters as the thermal low builds north so expect
marine headlines to be issued in the coming future. Widespread
sca gusts around 25 to 30 kt are possible over the weekend as the
thermal low gets stronger so additional headlines will be needed.

Seas will generally be around 4 to 6 ft through the period, but
could build to around 7 ft and become steep at times this weekend
as the winds increase. Not expecting square seas this weekend,
but if the winds are slightly stronger we may need to consider a
headline. 64

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
TOKW1 - 9440910 - Toke Point, WA 5 mi55 min NW 5.1 G 8.9 58°F 57°F1018.2 hPa
WPTW1 - 9441102 - Westport, WA 21 mi55 min NNW 8.9 G 9.9 55°F 54°F1017.8 hPa
46211 - Grays Harbor, WA (036) 22 mi55 min 55°F4 ft
46243 - Clatsop Spit, OR - 162 30 mi55 min 57°F4 ft
ASTO3 - 9439040 - Astoria, OR 31 mi55 min NW 7 G 8 60°F 70°F1018 hPa
46096 33 mi115 min NNW 5.8 G 5.8 51°F 54°F1018.4 hPa
46099 41 mi155 min NW 9.7 57°F 56°F1017.2 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 44 mi95 min NNW 9.7 G 12 60°F 59°F5 ft1018.2 hPa (+0.5)55°F
46T29 47 mi45 min NNW 9.7 G 12 60°F 60°F1019.1 hPa55°F

Wind History for Toke Point, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA24 mi32 minW 89.00 miFair56°F52°F87%1018.2 hPa

Wind History from HQM (wind in knots)
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Last 24hrSW8SW6SW6W4W43S5S4SW8SW7SW11SW12SW11W8SW11W7W7W5SW3W7W8W8W9W8
1 day agoCalmCalmSW3CalmSW3CalmSW4S8SW14SW14SW12SW11SW13SW13W9SW10W8W9W10W7W8W7W5W5
2 days agoCalmNE3CalmCalmNE5E3CalmW5S6SW5W12SW13SW11SW9SW11SW7SW4SW6CalmCalmCalmCalmCalmCalm

Tide / Current Tables for Bay Center, Palix River, Willapa Bay, Washington
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Bay Center
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Thu -- 03:28 AM PDT     8.78 feet High Tide
Thu -- 06:25 AM PDT     Sunrise
Thu -- 09:41 AM PDT     Moonrise
Thu -- 10:01 AM PDT     -0.78 feet Low Tide
Thu -- 04:07 PM PDT     8.70 feet High Tide
Thu -- 08:09 PM PDT     Sunset
Thu -- 09:53 PM PDT     Moonset
Thu -- 10:27 PM PDT     0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.85.87.68.78.67.7641.8-0-0.80.12.14.36.488.78.37.25.53.61.80.50.7

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Thu -- 12:42 AM PDT     2.28 knots Max Flood
Thu -- 03:30 AM PDT     -0.00 knots Slack
Thu -- 06:26 AM PDT     Sunrise
Thu -- 06:55 AM PDT     -3.55 knots Max Ebb
Thu -- 09:41 AM PDT     Moonrise
Thu -- 10:00 AM PDT     0.01 knots Slack
Thu -- 01:12 PM PDT     2.58 knots Max Flood
Thu -- 04:09 PM PDT     -0.01 knots Slack
Thu -- 07:24 PM PDT     -3.15 knots Max Ebb
Thu -- 08:10 PM PDT     Sunset
Thu -- 09:54 PM PDT     Moonset
Thu -- 10:25 PM PDT     0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.22.31.90.8-0.9-2.4-3.2-3.5-3-1.6-01.42.22.62.41.70.3-1.4-2.5-3.1-3-2-0.60.7

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 (6,6,7,8)
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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.