Sunday, July12, 2020
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Marine Weather and Tides
Geneva, 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 5:18AMSunset 9:12PM Sunday July 12, 2020 12:02 PM PDT (19:02 UTC) Moonrise 12:00AMMoonset 12:17PM Illumination 52% Phase: Third Quarter Moon; Moon at 22 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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PZZ133 Northern Inland Waters Including The San Juan Islands- 807 Am Pdt Sun Jul 12 2020
Today..SW wind 5 to 15 kt. Wind waves 2 ft or less. A slight chance of rain in the morning.
Tonight..W wind 5 to 15 kt becoming 10 to 20 kt after midnight. Wind waves 1 to 3 ft.
Mon..NW wind 5 to 15 kt becoming W in the afternoon. Wind waves 2 ft or less.
Mon night..SW wind 10 to 20 kt. Wind waves 1 to 3 ft.
Tue..W wind to 10 kt. Wind waves 1 ft or less.
Tue night..S wind 10 to 20 kt. Wind waves 1 to 3 ft.
Wed..SW wind 5 to 15 kt. Wind waves 2 ft or less.
Thu..SW wind to 10 kt. Wind waves 1 ft or less.
PZZ100 807 Am Pdt Sun Jul 12 2020
Synopsis for the northern and central washington coastal and inland waters..Varying degrees of onshore flow each day this week with high pressure offshore and lower pressure inland.


7 Day Forecast for Marine Location Near Geneva, WA
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location: 48.76, -122.41     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 121526 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 826 AM PDT Sun Jul 12 2020

SYNOPSIS. Some lingering showers continue this morning with skies starting to clear in the afternoon. Dry conditions will continue into at least mid-week with sunny skies and warmer temperatures. Some weak systems passing to the north of the area may allow for scattered showers at times for the second half of the week.

SHORT TERM /TODAY THROUGH TUESDAY/. We're in post-frontal onshore flow this morning with showers mostly in the Cascades and central/north sound where there's convergence. Expect light rain or drizzle with the convergence zone through the morning. Drier weather is expected this afternoon as a passing trough exits east. Temps remain below normal today with most spots in the 60s. 33

Previous discussion . The upper level low responsible for this up in Canada looks to continue to slowly move eastward . allowing for the prospect of showers to diminish even further as the day progresses. Upper level ridging will build over the W Pacific with the leading edge of this ridge entering into W WA this evening. This ridge will continue to move eastward slowly over the remainder of the short term period . allowing for dry conditions to persist and temperatures to warm to more summer-like values.

High temps today will still remain a little on the mild side of things with most interior lowland locations getting into the mid to upper 60s . although the SW interior may get up into the lower 70s. Coastal temps will generally sit in the lower 60s. Highs Monday will see the effects of the ridge kick in pretty quickly with lower to mid 70s for the interior while coastal areas will warm into the mid 60s. Tuesday sees this trend continue as interior highs will climb into the upper 70s while the coast lingers in the mid 60s.

LONG TERM /WEDNESDAY THROUGH SATURDAY/. Previous discussion . The offshore ridge still expected to flatten out in the Wed/Thu timeframe. The ECMWF looks to try and bring a system down into W WA Thursday . but it really only droops down enough to impact the northern two-thirds of the CWA. The GFS does not really allow this feature to dip down far enough to have any effect at all. Ensembles tend to split the difference here with bringing some precip in . but not terribly much . thus have opted for relatively weak PoPs in the forecast Beyond that. the deterministic models flip roles . with the GFS bringing in some weak shortwaves that could produce some weak PoPs here and there while the ECMWF looks to bring in another ridge. Ensembles seem to once again try to split the difference.

Wednesday looks to be the warmest day of the week with interior locations getting close to 80 before the flattening ridge will allow things to cool a bit back down into the lower to mid 70s for the remainder of the week. 18

AVIATION. Low cigs and some poor vsby in drizzle in the convergence zone this morning. A few areas were mostly clear at 8am-- the HQM/Aberdeen area and a good part of SW Washington was mostly clear. But overall there will be onshore flow and mostly cloudy skies til later today. The mountains will be mostly obscured with some showers or drizzle in the Cascades.

KSEA . PSCZ doing a number on Seattle this morning, amending for poor conditions but there should be improvement this afternoon and evening.

MARINE. Increased the forecast to 20-30kt later today for the central and eastern Strait with an advisory in effect--Race Rocks could reach gale for an hour or two this evening. Varying degrees of onshore flow this week with high pressure over the coastal waters and lower pressure inland. Small craft advisory westerlies expected each evening in the Central and East Entrance of the Strait of Juan de Fuca.

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 5 AM PDT Monday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHYW1 - 9449424 - Cherry Point, WA 20 mi45 min 1020.9 hPa
CPMW1 20 mi45 min S 7 G 8 57°F
CPNW1 20 mi63 min S 2.9 G 5.1 57°F
PBFW1 - Padilla Bay Reserve, WA 21 mi93 min WSW 6 65°F 1021 hPa55°F
FRDW1 - 9449880 - Friday Harbor, WA 35 mi87 min SW 9.9 G 12 59°F 51°F1020.2 hPa
SISW1 - Smith Island, WA 38 mi23 min W 14 G 17 55°F 1021.3 hPa50°F
PTWW1 - 9444900 - Port Townsend, WA 49 mi45 min WSW 9.9 G 15 60°F 51°F1021.9 hPa

Wind History for Cherry Point South Dock, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bellingham, Bellingham International Airport, WA7 mi70 minS 810.00 miA Few Clouds62°F51°F67%1020.9 hPa
Burlington/Mount Vernon, Skagit Regional Airport, WA20 mi68 minS 710.00 miPartly Cloudy66°F53°F64%1021 hPa

Link to 5 minute data for KBLI

Wind History from BLI (wind in knots)
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Last 24hrSW7S8S6S5S5S4CalmCalmW3S6S4S9S11
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1 day agoS5SW5S7W5Calm44CalmSW4S63CalmS3CalmCalmCalmCalmS7SW4S6S75S10S7
2 days ago5SW8S8S7S8S7S7S8S8S6S6S5S44S6S5S4CalmCalmS6S6465

Tide / Current Tables for Bellingham, Washington
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Bellingham
Click for Map
Sun -- 12:41 AM PDT     Moonrise
Sun -- 05:20 AM PDT     Sunrise
Sun -- 06:24 AM PDT     3.86 feet Low Tide
Sun -- 10:47 AM PDT     5.19 feet High Tide
Sun -- 01:18 PM PDT     Moonset
Sun -- 04:31 PM PDT     Last Quarter
Sun -- 04:37 PM PDT     3.61 feet Low Tide
Sun -- 09:10 PM PDT     Sunset
Sun -- 11:42 PM PDT     8.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.47.8765.14.33.93.94.34.85.15.254.64.23.93.73.63.94.55.56.67.58.1

Tide / Current Tables for Hale Passage, 0.5 miles SE of Lummi Pt, Washington Current
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Hale Passage
Click for Map
Sun -- 12:42 AM PDT     Moonrise
Sun -- 03:19 AM PDT     -0.94 knots Max Ebb
Sun -- 05:25 AM PDT     Sunrise
Sun -- 07:09 AM PDT     0.00 knots Slack
Sun -- 08:42 AM PDT     0.15 knots Max Flood
Sun -- 09:38 AM PDT     -0.00 knots Slack
Sun -- 01:18 PM PDT     Moonset
Sun -- 02:49 PM PDT     -0.49 knots Max Ebb
Sun -- 04:31 PM PDT     Last Quarter
Sun -- 05:09 PM PDT     0.00 knots Slack
Sun -- 08:46 PM PDT     1.35 knots Max Flood
Sun -- 09:06 PM PDT     Sunset
Sun -- 11:48 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.2-0.5-0.8-0.9-0.9-0.7-0.4-00.10.1-0-0.2-0.3-0.4-0.5-0.5-0.3-00.30.81.21.310.4

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 Seattle, WA (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.