Wednesday, April1, 2020
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Marine Weather and Tides
Maple Falls, 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 6:42AMSunset 7:42PM Wednesday April 1, 2020 2:06 AM PDT (09:06 UTC) Moonrise 10:40AMMoonset 2:20AM Illumination 58% Phase: Waxing Gibbous; Moon at 8 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- 755 Pm Pdt Tue Mar 31 2020
.small craft advisory in effect from 2 am pdt Wednesday through Wednesday afternoon...
Tonight..SE wind 10 to 20 kt. Wind waves 1 to 3 ft. A chance of showers and a slight chance of tstms in the evening then a chance of rain after midnight.
Wed..NE wind 20 to 30 kt becoming N 15 to 25 kt in the afternoon. Wind waves 3 to 5 ft. A chance of rain in the morning. A slight chance of rain in the afternoon.
Wed night..NW wind 10 to 20 kt becoming ne 15 to 25 kt after midnight. Wind waves 2 to 4 ft.
Thu..E wind to 10 kt in the morning becoming light. Wind waves 1 ft or less in the morning becoming less than 1 ft.
Thu night..SW wind to 10 kt. Wind waves 1 ft or less.
Fri..SW wind to 10 kt. Wind waves 1 ft or less.
Fri night..W wind to 10 kt becoming sw after midnight. Wind waves 1 ft or less.
Sat..Light wind becoming nw to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
Sun..N wind to 10 kt becoming light. Wind waves 1 ft or less.
PZZ100 755 Pm Pdt Tue Mar 31 2020
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will continue across the waters tonight as a weak low continues to move down the coast. Strong offshore flow will develop north of the low early Wednesday. After this, expect weak high pressure with light surface gradients until the next organized system approaches the waters around the weekend.


7 Day Forecast for Marine Location Near Maple Falls, WA
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location: 48.84, -122.13     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 010253 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 753 PM PDT Tue Mar 31 2020

UPDATE. The meso-low responsible for driving the convective activity across the Puget Sound Region late is in the process of diminishing near the King/Snohomish County line, causing the showers in that general vicinity to linger along a line from Edmonds to Stevens Pass. There have been a few reports of a few wet snowflakes in the Puget Sound lowlands in this area due to wet-bulb cooling. While temperatures in this area have generally cooled into the upper 30s at this hour, accumulation is not expected. However, periods of heavy snow will be possible for the next several hours along US-2 above 2000 feet, as these showers will continue to slowly move eastward. Disruptions in travel will certainly be possible into tonight. Be sure to check WSDOT for the latest road conditions if planning travel along US-2 tonight.

Similar to last night, the threat for thunder and small hail has diminished with the loss of daytime heating across much of western Washington. However, given the cold temperatures aloft associated with the upper level low currently centered to the northwest, just enough instability (100-200 J/KG MU CAPE) will exist along the outer coast to support an isolated thunderstorm overnight.

The remainder of the forecast remains on track this evening.

Pullin

AVIATION. ISO to SCT -SHRA continues across western Washington at this hour, yielding briefly lower CIGs and vsbys in the vicinity of several terminals. Expect the area of -SHRA in the vicinity of KPAE to diminish over the next hour. SCT -SHRA will continue to move inland from the west through the overnight hours, with additional development across all of western Washington by the late morning/early afternoon on Wednesday. CIGs will gradually lower to MVFR levels later this evening before gradually mixing out to VFR levels on Wednesday morning. Winds will shift from southerly to northerly at all terminals from north to south through Wednesday afternoon.

KSEA . Outflow boundary from a complex of SHRA and -TSRA is currently located in the general vicinity of the terminal, yielding a temporary shift to a west-northwesterly direction. Speeds will remain below 7 knots. Winds will gradually return to southerly later this evening and will remain that way through the late morning hours Wednesday before shifting to the west north-west by Wednesday afternoon. ISO to SCT -SHRA will continue in the vicinity of the terminal over the next several hours, with brief reductions in CIGs and vsbys possible in the event that any activity moves over the terminal. CIGs will gradually lower to MVFR levels this evening, with bases ranging in the 1500-2500 ft range before scattering out to VFR once again Wednesday morning.

Pullin

MARINE. Onshore flow continues across the waters today with relatively light surface gradients. A small craft advisory will remain in place for the coastal waters, with seas holding around 10 ft through tonight, before easing closer to 7 to 8 feet Wednesday.

A surface low with move south through the coastal waters tonight. This will bring increasing winds on the NE side of the low across the northern inland waters and down the Strait of Juan de Fuca very early Wednesday to high-end small craft advisory level winds. Cannot rule out a localized gale force gusts, but don't expect widespread gales to develop. These northerly winds also look to eventually make it into Admiralty Inlet, Puget Sound, and the portions of the northern Coastal Waters a little bit later in the day on Wednesday. Winds may then remain elevated into Thursday across the interior waters before finally relaxing through the remainder of the week. Seas may steepen a bit in response to stronger northerly winds behind the low on Wednesday, but at this point are expected to remain below advisory thresholds. Thereafter, seas look to remain benign through the remainder of the week. Cullen

PREV DISCUSSION. /issued 228 PM PDT Tue Mar 31 2020/

SYNOPSIS . Lowland rain showers and mountain snow showers will continue off and on for the next several days along with below normal temperatures.

SHORT TERM /TONIGHT THROUGH FRIDAY/ . Scattered rain and mountain snow showers continue to push east across the region this afternoon. There remains a chance of isolated thunderstorms this afternoon and early evening, with instability peaking in the next couple of hours. The main threats with any convective cells will be small hail and lightning. In the mountains, brief heavy snow would be possible with any stronger cells.

The threat of storms will decrease overnight, except along the coast where instability will remain as an upper level low drifts south just offshore. Wrap around moisture may combine with outflow through the Fraser River Valley to bring enhanced upslope flow along the northern Olympic Peninsula Wednesday morning. The low will continue to push south through the day Wednesday, dragging its forcing along with it and allowing conditions to dry out from north to south through the day.

Thursday will remain cool and somewhat drier, though isolated showers cannot be ruled out. Another wave rotating through a high amplitude trough centered over the Rockies looks to side swipe the region Friday. There is still some uncertainty with how far west the impacts from this system will be experienced. The odds are higher for areas along and east of the Cascade crest.

LONG TERM /SATURDAY THROUGH TUESDAY/ . Anomalous troughing continues through the long term period and may continue for the next couple of weeks. This would result in continued below normal temperatures and occasional periods of wet/showery weather. -Wolcott-

HYDROLOGY . An unsettled pattern will continue through the week ahead, but the progressive nature of the pattern and precipitation amounts are not expected to lead to flooding concerns.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Winter Weather Advisory until 5 AM PDT Wednesday for Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties-Olympics.

PZ . Small Craft Advisory until 5 AM PDT Wednesday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm- Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-Grays Harbor Bar.

Small Craft Advisory from 2 AM to 3 PM PDT Wednesday for Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory from 2 AM to 2 PM PDT Wednesday for Central U.S. Waters Strait Of Juan De Fuca-West 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
PBFW1 - Padilla Bay Reserve, WA 32 mi97 min S 6 40°F 1017 hPa38°F
CHYW1 - 9449424 - Cherry Point, WA 33 mi67 min 1017.3 hPa (+0.7)
CPMW1 33 mi73 min SSE 11 G 13 42°F
CPNW1 33 mi109 min SSE 7 G 12 43°F
FRDW1 - 9449880 - Friday Harbor, WA 51 mi91 min SE 4.1 G 5.1 42°F 47°F1017 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, WA22 mi74 minS 410.00 miMostly Cloudy42°F34°F73%1017.9 hPa

Link to 5 minute data for KBLI

Wind History from BLI (wind in knots)
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S1064CalmCalmSE3SE6SE8SE8SE3
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Tide / Current Tables for Bellingham, Washington (3)
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Bellingham
Click for Map
Wed -- 01:52 AM PDT     7.56 feet High Tide
Wed -- 03:21 AM PDT     Moonset
Wed -- 03:21 AM PDT     First Quarter
Wed -- 06:46 AM PDT     Sunrise
Wed -- 07:12 AM PDT     6.84 feet Low Tide
Wed -- 09:03 AM PDT     7.07 feet High Tide
Wed -- 11:42 AM PDT     Moonrise
Wed -- 06:09 PM PDT     0.11 feet Low Tide
Wed -- 07:41 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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77.47.67.47.276.96.86.97.176.76.25.242.61.40.50.10.31.12.33.75

Tide / Current Tables for Bellingham, Washington (2)
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Bellingham
Click for Map
Wed -- 01:31 AM PDT     2.36 meters High Tide
Wed -- 03:21 AM PDT     Moonset
Wed -- 03:21 AM PDT     First Quarter
Wed -- 05:57 AM PDT     2.11 meters Low Tide
Wed -- 06:46 AM PDT     Sunrise
Wed -- 08:58 AM PDT     2.20 meters High Tide
Wed -- 11:42 AM PDT     Moonrise
Wed -- 05:50 PM PDT     0.16 meters Low Tide
Wed -- 07:41 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.22.32.32.32.22.12.12.12.22.22.221.81.51.10.80.40.20.20.30.50.91.41.8

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Seattle, WA (5,6,7,8)
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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.