Thursday, August13, 2020
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Marine Weather and Tides
Montesano, WA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:09AMSunset 8:30PM Thursday August 13, 2020 5:31 PM PDT (00:31 UTC) Moonrise 12:00AMMoonset 3:30PM Illumination 24% Phase: Waning Crescent; Moon at 25 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- 251 pm pdt Thu aug 13 2020 combined seas 4 to 6 feet. Bar conditions light. Maximum ebb currents will occur around 115 am and 200 pm Friday.
PZZ100 251 Pm Pdt Thu Aug 13 2020
Synopsis for the northern and central washington coastal and inland waters..High pressure over the northeastern pacific and lower pressure inland will maintain onshore flow through the strait of juan de fuca and northerly winds over the coastal waters through Friday. Thermal low pressure builds up oregon coast late Friday and expands over western washington late Saturday into Sunday for brief offshore flow.


7 Day Forecast for Marine Location Near Montesano, WA
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location: 46.97, -123.6     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 132258 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 358 PM PDT Thu Aug 13 2020

SYNOPSIS. High pressure will build into the area with warm and dry conditions through the weekend. Very hot conditions are expected to develop Sunday for many locations.

SHORT TERM /TONIGHT THROUGH SUNDAY/. Sunny skies and near normal temperatures this afternoon will linger into this evening with clear skies and mild temperatures over much of the area tonight.

Onshore flow will continue Friday with temperatures warming into the upper 70s and low 80s in some locations. High pressure aloft will build fully over the region Saturday with low level flow becoming offshore during the day - allowing temperatures to warm further. Areas in the interior particularly east of I-5 will reach into the mid to upper 80s and from Tacoma-Olympia southward into the low 90s. Ensemble guidance continuing to advertise warmest temperatures Sunday, trending a bit warmer than previous forecasts with most locations through the interior reaching to the mid 80s to mid 90s. The warmest temperatures continue to be expected east of I-5 and south of Puget sound where temperatures could rise into the upper 90s, especially in the Cascade valleys. Temperatures this warm and widespread represent heat risk concerns with most areas seeing a potential for at least moderate heat risk. The warm temperatures coupled with the dry conditions also highlight fire weather concerns, especially in the Cascades.

LONG TERM /MONDAY THROUGH THURSDAY/. The forecast for Monday continues to reflect a transition day as the upper level ridge shifts eastward and low level onshore flow develops. This will bring relief to the coast with high temperatures dropping back into the 60s. As is often the case, interior will remain warm one more day with high temperatures reaching into the mid to upper 80s for the warmest locations. Overnight lows will cool Monday night back down into the 50s. The forecast continues to reflect a low chance for some spotty, high-based showers over the Cascades. Onshore flow will help bring a bit more cooling to the interior Tuesday with highs reaching in the lower to mid 80s. A more fully developed, and stronger onshore push Wednesday will bring conditions back to normal with increasing clouds, cooler temperatures and even a few passing showers as a trough moves into the area Wednesday into Thursday.

AVIATION. Clear skies and VFR conditions are going to continue this afternoon and into tonight for all airports in Western Washington. The winds will be shifting to more northerly especially along near the coast. Inland airports will have light and variable winds tonight and into tomorrow morning.

KSEA . VFR conditions will continue for the rest of today and into tonight. There may be some scattered cirrus tonight but will not hinder operations. Winds will begin to lessen and become light and variable into Friday morning. Winds will then begin to increase Friday afternoon and evening, they are expected to be northerly and around 10 knots. Butwin

MARINE. The daily push through the Strait of Juan de Fuca will be starting this evening and will be at small craft advisory strength in the Central and Eastern Strait. Stronger winds are expected to also occur in the South of the San Juan Islands as well as in the northern portion of the Admiralty Inlet. The winds will begin to decrease Friday morning and conditions will be very similar as to today. Thermal low pressure is building up the Oregon coast bringing strengthening northerly wind to the coastal waters Friday into Saturday morning. Winds are expected to be at small craft advisory level for the southern and central inner waters, with the highest wind speeds occuring near North Bay. There is the possibility that these northerly winds increase to small craft advisory levels late Friday night and into Saturday. If this is the case advisories may also be issued for the Southern Outer Waters. Butwin

FIRE WEATHER. Significantly warmer temperatures continue to be expected this weekend with maximum values reaching well into the upper 80s and 90s by Sunday. Dry and unstable conditions are also anticipated across the Cascades and lowland areas south of Olympia - which could lead to critical fire weather conditions particularly on Sunday. Minimum relative humidity values in those areas will drop into the 20s with mid-level Haines values of 6. There remains uncertainty regarding the weather pattern beyond Sunday particularly the transition to cooler conditions Monday into Tuesday.

HYDROLOGY. The daily hydrology discussion has ended until the start of the next rainy season; it will only be updated as needed until then.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Excessive Heat Watch from Sunday morning through Sunday evening for Bellevue and Vicinity-Bremerton and Vicinity-Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties-Cascades of Whatcom and Skagit Counties-East Puget Sound Lowlands-Everett and Vicinity-Hood Canal Area-Lower Chehalis Valley Area-Seattle and Vicinity-Southwest Interior-Tacoma Area.

PZ . Small Craft Advisory from 1 PM to 11 PM PDT Friday for Coastal Waters From James Island To Point Grenville Out 10 Nm- Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.

Small Craft Advisory until 5 AM PDT Friday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 5 AM PDT Friday for Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory from midnight tonight to 5 AM PDT Friday for Admiralty Inlet.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPTW1 - 9441102 - Westport, WA 27 mi55 min WNW 8.9 G 11 58°F 57°F1022.6 hPa
TOKW1 - 9440910 - Toke Point, WA 27 mi43 min WNW 11 G 15 63°F 65°F1022.5 hPa
46211 - Grays Harbor, WA (036) 35 mi35 min 57°F3 ft

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA20 mi38 minW 1210.00 miFair65°F52°F63%1022.5 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)
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Tide / Current Tables for Montesano, Chehalis River, Grays Harbor, Washington
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Montesano
Click for Map
Thu -- 12:44 AM PDT     Moonrise
Thu -- 04:55 AM PDT     0.87 feet Low Tide
Thu -- 06:09 AM PDT     Sunrise
Thu -- 11:03 AM PDT     5.21 feet High Tide
Thu -- 04:29 PM PDT     Moonset
Thu -- 04:36 PM PDT     3.05 feet Low Tide
Thu -- 08:27 PM PDT     Sunset
Thu -- 10:33 PM PDT     7.12 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.44.23.121.20.91.42.23.14.14.95.254.43.93.53.13.13.84.95.86.577.1

Tide / Current Tables for Cosmopolis, Chehalis River, Grays Harbor, Washington
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Cosmopolis
Click for Map
Thu -- 12:44 AM PDT     Moonrise
Thu -- 03:25 AM PDT     1.14 feet Low Tide
Thu -- 06:10 AM PDT     Sunrise
Thu -- 09:55 AM PDT     6.79 feet High Tide
Thu -- 03:06 PM PDT     3.99 feet Low Tide
Thu -- 04:30 PM PDT     Moonset
Thu -- 08:27 PM PDT     Sunset
Thu -- 09:25 PM PDT     9.29 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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53.52.21.21.32.23.34.45.66.56.86.45.64.84.344.35.56.87.98.79.29.28.3

Weather Map
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wmap_P
GEOS 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 Seattle, WA (20,4,5,8)
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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 numerous 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.