Wednesday, February19, 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 6:58AMSunset 5:33PM Wednesday February 19, 2020 3:39 PM PST (23:39 UTC) Moonrise 5:02AMMoonset 1:37PM Illumination 15% Phase: Waning Crescent; Moon at 26 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- 206 Pm Pst Wed Feb 19 2020
Tonight..NE wind to 10 kt becoming variable after midnight. Wind waves 1 ft or less.
Thu..Light wind. Wind waves less than 1 ft.
Thu night..Light wind. Wind waves less than 1 ft.
Fri..Light wind. Wind waves less than 1 ft.
Fri night..Light wind. Wind waves less than 1 ft.
Sat..Light wind. Wind waves less than 1 ft.
Sat night..Light wind becoming S to 10 kt after midnight. Wind waves less than 1 ft becoming 1 ft or less after midnight.
Sun..SW wind 5 to 15 kt. Wind waves 2 ft or less.
Mon..SW wind to 10 kt becoming light. Wind waves 1 ft or less.
PZZ100 206 Pm Pst Wed Feb 19 2020
Synopsis for the northern and central washington coastal and inland waters..Winds in the west entrance to the strait of juan de fuca will decrease below small craft advisory levels this evening. Light offshore flow expected to persist across all coastal waters through Saturday. The next push of wind and building seas is expected late Saturday into Sunday.


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 192148 AFDPDT

Area Forecast Discussion National Weather Service Pendleton OR 148 PM PST Wed Feb 19 2020

SHORT TERM. Tonight through Friday night . The headline for tonight will be clear and cold. From a broad view, rather pronounced mid-level ridge is right over us extending from central California well into Canada. With dry airmass aloft, clear conditions, light/variable winds in many places, and snowpack in some locations, tonight is likely to be a textbook example of radiational cooling. Seasonably warm daytime temps will drop rapidly at sunset with much of the area experiencing teens to 20s for overnight lows. That said, high elevation areas with snowpack and elevated valleys may dip to near zero overnight. Tomorrow, a developing cutoff low moves into California while the ridge axis moves a little to our east. This will serve to flatten our flow aloft creating near westerly flow. Some light cloud cover aloft may work its way in and temperatures will likely be a few degrees warmer, but otherwise a similar pattern to today (clear and cool) is expected. Friday will likely continue this trend, with temps seasonably warm by day and a bit cool at night with high level cloud cover continuing to increase as moisture aloft approaches us ahead of our weekend low pressure system. Southerly winds will begin to pick up on Friday evening as our approaching system begins to tighten the pressure gradient between high pressure in Idaho and lower pressure offshore.

LONG TERM. Saturday through Thursday . Saturday there will be a split flow with an upper closed low off the southern California coast and a westerly flow over the forecast area. This will keep conditions dry. However, mid and high level moisture will be increasing ahead of the next weather system to create increasing clouds through the day. There may be some light snow over the WA Cascades by late afternoon or early evening as the next system moves into the region. Mountain snow and valley rain will gradually spread eastward Saturday night and Sunday and this precipitation will be stratiform. Then after the cold front moves past the forecast area northwest winds will increase and cause upslope showers to develop over the eastern mountains and the Cascades. The air in the upper atmosphere will also become much colder creating steep temperature lapse rates which will create an unstable atmosphere. Therefore all precipitation across the forecast area will become convective and showery rather than stratiform. However, the lower elevations will experience a rain shadow effect from the strong northwest flow off the Cascades resulting in much less precipitation, and in fact maybe no precipitation in the normally drier areas such as the lower elevations of the lower Columbia Basin (e.g. Hermiston and the Tri- Cities and along the Columbia River). Snow amounts could reach 24 hour advisory criteria in the Cascades and the northern Blue Mountains, but it is still too early to be certain of how much and therefore will wait longer before considering any advisories at this time. It will be windy on Sunday through Monday morning, but at this time the winds do not look to be strong enough for any wind highlights. Temperatures will drop behind the cold front Sunday night and Monday, but then high pressure aloft will return by Monday afternoon and there will be a warming trend from Tuesday through Thursday with mostly clear skies and light winds again. 88

AVIATION. 00Z TAFs . VFR conditions with clear skies and light winds will prevail for the next 24 hours under a strong high pressure ridge. 88

PRELIMINARY POINT TEMPS/POPS. PDT 48 25 48 25 / 0 0 0 0 ALW 49 23 49 27 / 0 0 0 0 PSC 51 22 48 24 / 0 0 0 0 YKM 49 21 48 21 / 0 0 0 0 HRI 50 24 49 25 / 0 0 0 0 ELN 43 23 44 21 / 0 0 0 0 RDM 48 15 50 20 / 0 0 0 0 LGD 40 21 40 22 / 0 0 0 0 GCD 41 20 44 22 / 0 0 0 0 DLS 50 27 49 29 / 0 0 0 0

PDT WATCHES/WARNINGS/ADVISORIES. OR . None. WA . None.

76/88/88


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 71 mi52 min WNW 7 G 7
TCNW1 - 9446484 - Tacoma, WA 71 mi58 min 50°F 48°F1024.5 hPa

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA14 mi1.7 hrsVar 510.00 miFair30°F21°F72%1028.3 hPa

Link to 5 minute data for KSMP

Wind History from SMP (wind in knots)
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Last 24hrCalmCalmCalm33NE3455346335464556554
1 day ago--------------------------------Calm333334Calm
2 days ago------------------------------------------------

Tide / Current Tables for Des Moines, Washington
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Des Moines
Click for Map
Wed -- 03:22 AM PST     11.39 feet High Tide
Wed -- 05:07 AM PST     Moonrise
Wed -- 07:08 AM PST     Sunrise
Wed -- 08:30 AM PST     7.65 feet Low Tide
Wed -- 01:04 PM PST     10.40 feet High Tide
Wed -- 01:41 PM PST     Moonset
Wed -- 05:38 PM PST     Sunset
Wed -- 08:35 PM PST     -0.49 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.19.210.611.311.210.49.38.37.77.78.39.11010.410.19.17.55.32.90.9-0.3-0.40.62.6

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
Click for Map
Wed -- 03:18 AM PST     10.72 feet High Tide
Wed -- 05:07 AM PST     Moonrise
Wed -- 07:08 AM PST     Sunrise
Wed -- 08:33 AM PST     7.19 feet Low Tide
Wed -- 01:00 PM PST     9.80 feet High Tide
Wed -- 01:40 PM PST     Moonset
Wed -- 05:38 PM PST     Sunset
Wed -- 08:38 PM PST     -0.46 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.78.710.110.710.59.88.77.87.37.27.88.69.49.89.58.6752.70.9-0.3-0.40.52.4

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 (18,4,5,8)
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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.