Wednesday, August5, 2020
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Marine Weather and Tides
Purdy, 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 5:53AMSunset 8:38PM Wednesday August 5, 2020 9:15 AM PDT (16:15 UTC) Moonrise 9:07PMMoonset 6:50AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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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PZZ135 Puget Sound And Hood Canal- 827 Am Pdt Wed Aug 5 2020
Today..Light wind becoming variable to 10 kt in the afternoon. Wind waves 1 ft or less.
Tonight..NW wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less. A chance of rain after midnight.
Thu..SW wind to 10 kt becoming ne in the afternoon. Wind waves 1 ft or less. Rain likely in the morning then a chance of rain in the afternoon.
Thu night..N wind to 10 kt becoming S after midnight. Wind waves 2 ft or less.
Fri..S wind to 10 kt in the morning becoming light. Wind waves 1 ft or less in the morning becoming less than 1 ft.
Fri night..NW wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Sat..Light wind becoming nw to 10 kt. Wind waves 1 ft or less.
Sun..Light wind becoming N to 10 kt. Wind waves 1 ft or less.
PZZ100 827 Am Pdt Wed Aug 5 2020
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will continue this week with the strongest onshore push on Thursday as a cold front moves inland.


7 Day Forecast for Marine Location Near Purdy, WA
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location: 47.4, -122.58     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 051542 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 842 AM PDT Wed Aug 5 2020

SYNOPSIS. High pressure aloft will weaken as a frontal system approaches the region. The front will bring some light rain to the area late tonight and Thursday morning. Weak troughing will persist over Western Washington into Saturday for generally dry but cooler conditions. High pressure will gradually rebuild early next week for a trend toward somewhat warmer conditions.

SHORT TERM /TODAY THROUGH FRIDAY/. Stratus that pushed part way inland overnight is burning back to the coast this morning with plenty of sunshine over the interior. A weak frontal system will spread some high clouds into the area later this afternoon with some rain possible on the coast after midnight. Light rain will spread into the interior of Western Washington on Thursday morning, but amounts will be light. High temperatures on Thursday should be a good 8 to 12 degrees cooler than today. Weak upper troughing remains over the region Friday into Saturday, but it should be dry with night and morning clouds and temperatures near or a little below seasonal normals. No forecast updates planned this morning. The remainder of the previous discussion follows with updates to the marine and aviation discussions. 27

The model interpretation for Friday is still to trend drier with a return to seasonably normal temperatures, as low amplitude upper level ridging builds back into the area. Highs will be in the low to mid 70s with 60s along the coast.

LONG TERM /SATURDAY THROUGH TUESDAY/. Moving into the weekend, a clear pattern is lacking in the wake of the system that moves through on Thursday. Arguably quasi-zonal flow with a broadly unsettled pattern shaping up for Saturday, which is shaping up to be benign across western Washington. Highs will be in the mid to upper 70s, continuing into Sunday before the pattern starts hinting at rebuilding a more well defined ridge.

A more well defined system looks to trek south from the Gulf of Alaska, but at this point, it does not appear to dive south enough into Washington. At this point in time, if the system just clips the area, that could lead to light shower activity in the northern parts of the CWA at best. Confidence in the exact extent of its southward movement is low and bears monitoring in future forecast iterations. For Tuesday, the pattern seems quiet again and temperatures warm a few degrees from Monday's temperatures, although the models hint at yet another system in the first half of next week. While too early to speculate, more details will come into focus as the time frame of interest nears.

Kristell

AVIATION. Southwest flow aloft as an upper trough approaches the area today. Onshore flow will stratus clouds and the coast and into areas around the South Sound. VFR for most this morning with IFR along the coast and Southwest Interior. Patchy fog across the central Puget Sound near KPWT. VFR cigs by late this morning as clouds clear towards the coast. A cold front will bring rain tonight to the coast with low clouds and rain pushing into the interior areas early Thursday morning. South to southwest winds light this morning with 5 to 10 knot winds this afternoon into tonight. JD

KSEA . VFR cigs. South to southwest winds light this morning to 10 knots this afternoon. JD

MARINE. Onshore flow through this week. Small Craft Advisory winds for the Strait of Juan de Fuca through tonight. SCA winds tonight for the northern inland waters. Onshore flow will increasing Thursday as a cold front moves through the area. A second, weaker, front will diminish over the Coastal Waters Friday night. Onshore flow through the weekend

Onshore flow will continue today. Highest wind and waves will be found through the Strait of Juan de Fuca - Small Craft Advisory winds are likely. Onshore flow will increase on Thursday as a cold front moves inland. A second, weaker, front will diminish over the Coastal Waters Friday night. Onshore flow will continue into the weekend. 33

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 . None. PZ . Small Craft Advisory until 11 PM PDT this evening for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 5 AM early this morning to 11 PM PDT this evening for Northern Inland Waters Including The San Juan Islands.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46121 11 mi27 min 1.9 62°F 1015.3 hPa56°F
TCMW1 - 9446482 - Tacoma Met, WA 12 mi46 min N 1.9 G 4.1
TCNW1 - 9446484 - Tacoma, WA 13 mi46 min 64°F 56°F1015.8 hPa
WPOW1 - West Point, WA 20 mi76 min NNE 1 G 1.9 59°F 1015 hPa (+0.0)55°F
46120 27 mi34 min N 5.8 58°F 1013.9 hPa55°F
46125 35 mi33 min 53°F 1014.6 hPa52°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tacoma, Tacoma Narrows Airport, WA9 mi23 minSW 410.00 miPartly Cloudy60°F54°F80%1015.3 hPa
Bremerton, Bremerton National Airport, WA11 mi20 minSW 54.00 miFog/Mist60°F57°F93%1015.6 hPa
Seattle, Seattle-Tacoma International Airport, WA15 mi23 minS 610.00 miA Few Clouds65°F57°F76%1015.8 hPa
Boeing Field - King County International Airport, WA17 mi23 minVar 310.00 miFair68°F55°F63%1014.7 hPa
Tacoma / McChord Air Force Base, WA17 mi18 minW 410.00 miFair64°F55°F74%1015.5 hPa
Renton Municipal Airport, WA20 mi23 minSSW 45.00 miMostly Cloudy with Haze67°F55°F68%1015.3 hPa
Fort Lewis / Gray U. S. Army Airfield, WA21 mi78 minSW 310.00 miFair61°F61°F99%1015.1 hPa

Link to 5 minute data for KTIW

Wind History from TIW (wind in knots)
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Last 24hrNE7N95NE7NE10NE11
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E8NE8NE5NE5N6N6N4N4NE4CalmCalmW4CalmW3W3SW5SW4
1 day agoS6CalmSE7SE6SE764W6N5N6N7NE7CalmN5N5NW4CalmCalmCalmCalmCalmCalmN55
2 days ago6566666W7
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4W6W7SW3CalmS6SW5W4SW5SW3SW3S5S4S5SW5S5

Tide / Current Tables for Wauna, Washington
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Wauna
Click for Map
Wed -- 01:41 AM PDT     5.84 feet Low Tide
Wed -- 05:54 AM PDT     Sunrise
Wed -- 06:24 AM PDT     11.40 feet High Tide
Wed -- 07:50 AM PDT     Moonset
Wed -- 01:31 PM PDT     -1.00 feet Low Tide
Wed -- 08:33 PM PDT     13.62 feet High Tide
Wed -- 08:37 PM PDT     Sunset
Wed -- 10:06 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.46.15.96.88.510.211.311.210.28.45.93.10.6-0.8-0.80.73.46.69.812.213.413.512.410.5

Tide / Current Tables for Skagit Bay, channel SW of Hope Island, Washington Current
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Skagit Bay
Click for Map
Wed -- 01:38 AM PDT     1.99 knots Max Flood
Wed -- 05:02 AM PDT     -0.01 knots Slack
Wed -- 05:54 AM PDT     Sunrise
Wed -- 07:50 AM PDT     Moonset
Wed -- 07:56 AM PDT     -2.19 knots Max Ebb
Wed -- 11:11 AM PDT     0.02 knots Slack
Wed -- 02:01 PM PDT     2.66 knots Max Flood
Wed -- 06:07 PM PDT     -0.08 knots Slack
Wed -- 08:37 PM PDT     Sunset
Wed -- 08:41 PM PDT     -2.13 knots Max Ebb
Wed -- 10:06 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.921.71.30.2-1.5-2-2.2-2-1.6-0.81.62.42.72.52.21.60.4-1.6-2.1-2.1-1.9-1.6

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 (12,3,4,5)
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Ground Weather Radar Station Seattle/Tacoma, WA
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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.