Saturday, July11, 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 5:17AMSunset 8:57PM Saturday July 11, 2020 12:59 PM PDT (19:59 UTC) Moonrise 11:37PMMoonset 11:08AM Illumination 62% Phase: Waning Gibbous; Moon at 21 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- 826 Am Pdt Sat Jul 11 2020
Today..Light wind becoming sw 5 to 15 kt in the afternoon. Wind waves less than 1 ft becoming 2 ft or less in the afternoon. A slight chance of rain in the afternoon.
Tonight..Variable wind to 10 kt becoming sw after midnight. Wind waves 1 ft or less. A slight chance of rain in the evening then a chance of rain after midnight.
Sun..Light wind becoming ne 5 to 15 kt in the afternoon. Wind waves less than 1 ft becoming 2 ft or less in the afternoon. A slight chance of rain.
Sun night..NE wind 5 to 15 kt. Wind waves 2 ft or less.
Mon..N wind to 10 kt. Wind waves 1 ft or less.
Mon night..N wind 5 to 15 kt becoming ne after midnight. Wind waves 2 ft or less.
Tue..Variable wind to 10 kt becoming nw. Wind waves 1 ft or less.
Wed..S wind to 10 kt becoming nw. Wind waves 1 ft or less.
PZZ100 826 Am Pdt Sat Jul 11 2020
Synopsis for the northern and central washington coastal and inland waters..A weak front will move through the coastal waters this afternoon and the inland waters tonight. Onshore flow will increase behind the front. Varying degrees of onshore flow Sunday through Wednesday with high pressure over the coastal waters and lower pressure inland.


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 111723 AAA AFDPDT

Area Forecast Discussion National Weather Service Pendleton OR 1020 AM PDT Sat Jul 11 2020

Updated Aviation Discussion

UPDATE. Little change to this morning's forecast package. Today, the focus will be on the mild to moderate fire weather setup this afternoon and early evening, with low relative humidities in the eastern Columbia Gorge and in the Basin. A red flag warning has been issued for these regions. Winds will be increasing this afternoon ahead of an approaching upper level trough and dry surface cold front, with winds decreasing overnight. The approaching weather system will bring showers to along the WA Cascades this evening, but, expect conditions will be unfavorable for any shower/storm development across the rest of the forecast area today. Lawhorn/82

PREV DISCUSSION. /issued 146 AM PDT Sat Jul 11 2020/

SHORT TERM . Today through Monday . A ridge of high pressure will be over the region today but an approaching upper level trough will begin to push the ridge eastward. This will result in a break down of the ridge leading to increasing westerly winds this afternoon and evening associated with a dry cold frontal passage overnight. The trough will pass over the region on Sunday with cooler yet still breezy conditions. Only area that could see a few showers out this system will be along the crest of the WA Cascades. Region will be under a cool dry northwest flow on Monday as the trough exits to the east.

LONG TERM . Tuesday through Saturday . A dry and stable northwest flow aloft will prevail from Tuesday through at least Thursday. It will be mostly clear with light winds and a warming trend. The models then diverge from each other by late Thursday with the GFS and Canadian model continuing to keep a dry northwest flow over the region while the ECMWF tries to dig a trough over the region. Decided to go with the consensus of the GFS and Canadian and keep conditions dry with a west to northwest flow through the rest of the extended period . though there could be a few light showers over the central WA Cascades as weak weather disturbances clip the northern CWA. Temperatures will continue to be on a warning trend through Saturday. Temperatures will be mostly in the 80s on Tuesday warming to the 90s by Friday and Saturday in the lower elevations and about 10 degrees cooler in the mountains. 88

AVIATION . 18Z TAFs . VFR conditions through the period. A mainly dry cold front will be crossing the area late this afternoon and overnight with clouds few-sct 080-100kft. Main impact for aviation will be strong winds 15-20kt by 21z and 20-30kt from 00-06z. Winds will decrease to 10-20kts after 06z. 93

FIRE WEATHER . A Red Flag Warning is in effect from noon until 10 PM this evening for the Lower Columbia Basin for windy and low RH conditions. An approaching upper level trough will cause a break down of the high pressure with a cold frontal passage late today. Winds of 15 to 25 mph with gusts in the 30s will be likely combined with humidities down around 15 to 20 percent across fire zones 641 and 675.

PRELIMINARY POINT TEMPS/POPS. PDT 91 58 81 53 / 0 0 0 0 ALW 93 58 83 54 / 0 0 0 0 PSC 95 61 85 56 / 0 0 0 0 YKM 91 55 82 51 / 0 0 0 0 HRI 94 60 83 54 / 0 0 0 0 ELN 85 55 73 51 / 0 0 0 0 RDM 90 48 78 45 / 0 0 0 0 LGD 90 53 74 50 / 0 0 0 0 GCD 94 51 78 49 / 0 0 0 0 DLS 85 61 79 57 / 0 0 0 0

PDT WATCHES/WARNINGS/ADVISORIES. OR . Red Flag Warning from noon today to 10 PM PDT this evening for ORZ641.

WA . Red Flag Warning from noon today to 10 PM PDT this evening for WAZ641-675.



82/93/93


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 71 mi60 min W 8.9 G 11
TCNW1 - 9446484 - Tacoma, WA 71 mi60 min 66°F 54°F1020.1 hPa (+0.4)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA14 mi64 minVar 410.00 miFair66°F50°F56%1018.2 hPa

Link to 5 minute data for KSMP

Wind History from SMP (wind in knots)
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Last 24hr34555555SW4SW3SW4SW3SW3SW3CalmSW3SW3SW33SW4SW5544
1 day ago554--533353456W6W6433334343
2 days ago455465534SW3SW34SW34SW444333Calm334

Tide / Current Tables for Des Moines, Washington
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Des Moines
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Sat -- 12:22 AM PDT     Moonrise
Sat -- 04:54 AM PDT     4.95 feet Low Tide
Sat -- 05:24 AM PDT     Sunrise
Sat -- 09:49 AM PDT     7.86 feet High Tide
Sat -- 12:13 PM PDT     Moonset
Sat -- 04:03 PM PDT     2.21 feet Low Tide
Sat -- 09:04 PM PDT     Sunset
Sat -- 11:08 PM PDT     11.53 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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119.67.96.35.255.36.16.97.77.87.46.55.33.92.72.22.63.95.77.79.61111.5

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
Click for Map
Sat -- 12:22 AM PDT     Moonrise
Sat -- 04:57 AM PDT     4.66 feet Low Tide
Sat -- 05:24 AM PDT     Sunrise
Sat -- 09:45 AM PDT     7.40 feet High Tide
Sat -- 12:13 PM PDT     Moonset
Sat -- 04:06 PM PDT     2.08 feet Low Tide
Sat -- 09:05 PM PDT     Sunset
Sat -- 11:04 PM PDT     10.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.397.45.94.94.755.76.67.27.476.14.93.72.62.12.53.65.47.39.110.410.9

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 (15,3,4,5)
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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.