Monday, March30, 2020
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Marine Weather and Tides
Ronald, 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 6:41AMSunset 7:30PM Monday March 30, 2020 8:51 AM PDT (15:51 UTC) Moonrise 9:05AMMoonset 12:08AM Illumination 40% Phase: Waxing Crescent; Moon at 6 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- 310 Am Pdt Mon Mar 30 2020
.small craft advisory in effect through this evening...
Today..SW wind 20 to 30 kt easing to 15 to 25 kt in the afternoon. Wind waves 3 to 5 ft. A chance of rain in the morning. A slight chance of tstms. Rain likely in the afternoon.
Tonight..SW wind 15 to 25 kt easing to 10 to 20 kt after midnight. Wind waves 2 to 4 ft. A chance of showers and a slight chance of tstms.
Tue..S wind to 10 kt rising to 15 to 25 kt in the afternoon. Wind waves 1 ft or less building to 2 to 4 ft in the afternoon. A chance of showers in the morning. A slight chance of tstms. Showers likely in the afternoon.
Tue night..SW wind 10 to 20 kt becoming S 5 to 15 kt after midnight. Wind waves 1 to 3 ft.
Wed..NW wind 10 to 20 kt becoming N 15 to 25 kt in the afternoon. Wind waves 2 to 4 ft.
Wed night..Light wind. Wind waves less than 1 ft.
Thu..Light wind becoming variable to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
Fri..Light wind. Wind waves less than 1 ft.
PZZ100 310 Am Pdt Mon Mar 30 2020
Synopsis for the northern and central washington coastal and inland waters..A stronger system will move through the region tonight, bringing likely gales to the coastal waters and portions of the northern inland waters. Seas will build and remain elevated through mid- week with an arriving westerly swell.


7 Day Forecast for Marine Location Near Ronald, WA
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location: 47.25, -121.08     debug


Area Discussion for - Pendleton, OR
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FXUS66 KPDT 301537 AFDPDT

Area Forecast Discussion National Weather Service Pendleton OR 836 AM PDT Mon Mar 30 2020

SHORT TERM. Today and tonight . A cold front will sweep across the region this morning followed by increasingly windy westerly winds through this evening before gradually decreasing overnight. Wind advisories continue through this evening. Precipitation will mainly be focused along the crest of the Cascades and over the eastern mountains. Snow levels will begin to lower behind the frontal passage with accumulating snow through tonight and into Tuesday. Winter weather advisories continue until Tuesday evening. .

PREV DISCUSSION. /issued 254 AM PDT Mon Mar 30 2020/

SHORT TERM . Today through Wednesday night. Strong upper level trough and jet moving into the Pacific northwest. Radar and satellite showing cold front moving onshore early this morning. This front will cross the forecast area during the morning and early afternoon with rain likely. Surface gradients and winds aloft are strong and expect increasing winds. Southerly winds this morning ahead of the front becoming westerly by afternoon. Expect widespread 20-35 mph winds with some locations having 40-50 mph gusts. Winds will diminish later in the evening and advisories will be in effect through 7pm. Current snow levels are 4-5k feet however these will lower to 2-3k late this evening and overnight. Based on this precipitation will be mostly rain through early afternoon becoming rain and mountain snow by evening into the overnight period. For Tuesday and Wednesday an upper level trough will remain over the region. Skies will be mostly cloudy with occasional rain and mountain snow. Temperatures will be cooler with highs in the 40s to mid 50s. Breezy westerly winds 10-25 mph each day. Persistent west to northwest flow aloft with the cooler airmass tonight into Tuesday will result in snow accumulations for the mountains. Winter weather advisories remain in effect. 94

LONG TERM . Thursday through Monday . Models are in fairly good agreement for the long term with long wave troughing over the western US with a main upper low meandering over western Canada. Deterministic solutions and model ensembles trending towards a persistent, moist west to northwest flow through the Pacific Northwest with a series of shortwaves embedded in the flow passing over the region. Expect a chance of low elevation rain and mountain snow showers most days, especially over the weekend as a duo of stronger waves pass over the Inland NW. Have trended cooler temps from previous runs as models starting to keep lower heights over the region. Expect afternoon temps in the 40s and 50s.

AVIATION . 12Z TAFs . Mainly VFR conditions expected through the period. Another weather system will move into the region today and tonight and bring more widespread showers and increasing winds. Can't rule out potential for a few thunderstorms, as well as small hail. Conditions will become MVFR, to possibly IFR, at times under steadier/heavier showers due to lowered CIGs and/or VIS. Mountain obscuration likely. Winds will increase late morning 18-28g30-40kts and continue through evening, becoming around 10kts or less tonight.

PRELIMINARY POINT TEMPS/POPS. PDT 54 36 51 31 / 70 40 40 30 ALW 54 38 53 33 / 70 40 50 30 PSC 59 39 57 34 / 40 10 20 10 YKM 57 33 54 29 / 60 10 20 10 HRI 57 38 56 33 / 40 30 30 10 ELN 52 33 49 28 / 70 20 20 10 RDM 53 30 45 23 / 40 50 50 20 LGD 52 33 44 27 / 80 80 70 40 GCD 50 34 41 24 / 80 80 70 30 DLS 54 38 53 33 / 70 60 40 20

PDT WATCHES/WARNINGS/ADVISORIES. OR . Wind Advisory until 7 PM PDT this evening for ORZ041-044-507-508- 510-511.

Winter Weather Advisory from 2 PM this afternoon to 8 PM PDT Tuesday for ORZ502-503-506.

WA . Wind Advisory until 7 PM PDT this evening for WAZ024-026>029-521.

Winter Weather Advisory from 2 PM this afternoon to 8 PM PDT Tuesday for WAZ030.



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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 71 mi51 min S 7 G 13
TCNW1 - 9446484 - Tacoma, WA 71 mi51 min 43°F 48°F1009.1 hPa (+4.8)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA14 mi1.9 hrsW 8 G 200.25 miSnow Freezing Fog30°F28°F92%1004.7 hPa

Link to 5 minute data for KSMP

Wind History from SMP (wind in knots)
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Last 24hrCalm365635W753CalmCalmCalmCalmCalmCalm4Calm3435W8
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1 day agoCalm3Calm3Calm434CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3Calm
2 days ago5566W856W76433454533Calm3CalmCalmCalmCalm

Tide / Current Tables for Des Moines, Washington
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Des Moines
Click for Map
Mon -- 01:13 AM PDT     Moonset
Mon -- 03:38 AM PDT     6.48 feet Low Tide
Mon -- 06:50 AM PDT     Sunrise
Mon -- 08:42 AM PDT     10.08 feet High Tide
Mon -- 10:09 AM PDT     Moonrise
Mon -- 04:02 PM PDT     0.59 feet Low Tide
Mon -- 07:37 PM PDT     Sunset
Mon -- 11:24 PM PDT     10.24 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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9.48.47.46.66.57.18.19.29.910.19.58.16.34.42.51.10.61.12.44.36.48.29.610.2

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
Click for Map
Mon -- 01:14 AM PDT     Moonset
Mon -- 03:41 AM PDT     6.10 feet Low Tide
Mon -- 06:50 AM PDT     Sunrise
Mon -- 08:38 AM PDT     9.50 feet High Tide
Mon -- 10:08 AM PDT     Moonrise
Mon -- 04:05 PM PDT     0.55 feet Low Tide
Mon -- 07:37 PM PDT     Sunset
Mon -- 11:20 PM PDT     9.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.87.96.96.36.16.77.78.79.49.58.97.65.94.12.41.10.612.34.167.899.6

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 Pendleton, OR (11,2,3,4)
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Ground Weather Radar Station Seattle/Tacoma, WA
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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.