Tuesday, April25, 2017 L-36.com


Marine Weather and Tides
Bellingham, WA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:55AMSunset 8:19PM Tuesday April 25, 2017 5:39 AM PDT (12:39 UTC) Moonrise 5:01AMMoonset 6:25PM Illumination 0% Phase: New Moon; Moon at 29 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- 240 Am Pdt Tue Apr 25 2017
.small craft advisory in effect through late tonight...
Today..SE wind 5 to 15 kt. Wind waves 2 ft or less. A chance of rain this afternoon.
Tonight..SE wind 15 to 25 kt becoming S 10 to 20 kt after midnight. Wind waves 2 to 4 ft. Rain.
Wed..SW wind 10 to 20 kt becoming W 15 to 25 kt in the afternoon. Wind waves 2 to 4 ft. Rain in the morning then scattered showers in the afternoon.
Wed night..W wind 20 to 30 kt easing to 15 to 25 kt after midnight. Wind waves 3 to 5 ft.
Thu..W wind 10 to 20 kt rising to 15 to 25 kt in the afternoon. Wind waves 2 to 4 ft.
Thu night..W wind 15 to 25 kt. Wind waves 2 to 4 ft.
Fri..W wind 15 to 25 kt. Wind waves 2 to 4 ft.
Sat..S wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 240 Am Pdt Tue Apr 25 2017
Synopsis for the northern and central washington coastal and inland waters..A ridge of higher pres is over western washington today. A weakening pacific frontal system about 450 nm offshore early this morning to approach the coast this afternoon and move inland tonight. Strong onshore flow behind the front Wed into Thu should ease by Fri as higher pres builds over the region.

7 Day Forecast for Marine Location Near Bellingham, WA
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location: 48.75, -122.5     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 251023
afdsew
area forecast discussion
national weather service seattle wa
320 am pdt Tue apr 25 2017

Synopsis Exiting high pressure will keep conditions mostly dry
through late this morning. Rain will return by this afternoon and
continue into Wednesday morning as a couple of weather systems move
onshore. Showers will linger later Wednesday then decrease Thursday
and Friday. High pressure will build Saturday followed by a weak
front Sunday.

Short term Current radar imagery is clear this early
morning... But zooming out to satellite imagery... Starting to see
clouds associated with next weather system out over the far coastal
waters signaling more of what most of the pacific NW has grown far
too accustomed to.

Models hold together well for the incoming front and its lingering
effects. Said front definitely takes its time... As it looks only to
reach the coast by around noon today and will not reach the interior
until mid to late afternoon... Depending on location. Given the
orientation of the front... Running NW to se... Southern portions of
the CWA more likely to see rain move in during the early afternoon.

Seattle itself will be a bit interesting... As precip there may hold
off till closer to 00z. Once it is here though... Rain will linger
through the night tonight and continuing into the day Wed as the
front stalls before finally breaking up into more showery precip wed
night and into thu. Previous model runs had suggested the
possibility of the need for some winter weather headlines for the
cascades for wed... As snowfall there could potentially reach low end
advisory amounts. Models have backed away from this... Avoiding
putting a cherry on the very depressing sundae that has been this
combined winter and spring period. Model agreement starts to fall
apart on Friday. Both models show very similar building of a ridge
to the west of the area... But GFS suggests drying conditions while
the ECMWF provides a wetter solution. Have opted to side more with
the GFS purely out of sheer rain fatigue.

High temperatures will continue to run cool... With most locations
not escaping the mid 50s for the near term period. Smr

Long term Model solutions fall back into alignment Saturday with
ridging overhead and dry conditions with... Wait for it... Afternoon
highs in the lower 60s. Cautiously optimistic for that... But on the
other hand... Models have been very inconsistent with the long term
over past several runs... Particularly when it comes to placement of
ridges and duration of dry breaks so much of this section may end up
falling into the realm of so many grains of salt. Sunday sees rain
again over W wa... But placement of parent low is wildly different
between the two models... As is the coverage of precip after Sunday.

Gfs is generally more showery except for late Monday afternoon which
sees more organized activity along a front that quickly moves
through. The ECMWF shows two distinct waves... One Sunday morning and
the other late Monday afternoon... But is very quick in building a
ridge in for Monday night and actually offers a drier solution.

The short version of all this is that while models seem okay when
taken on their own... The fact that this current run looks very
little like runs from 24 hours ago and those looked very little like
runs 24 hours previous to that and it becomes clear that any degree
of confidence in the long term forecasts is not warranted at this
time. Smr

Aviation An upper ridge will move onshore today and then
weaken tonight with westerly flow aloft over washington. At the
surface... A weakening pacific frontal system offshore will approach
the coast this afternoon and move inland tonight. Air mass stable
ahead of the front. Areas of lower level moisture this morning then
increasing mid/high level moisture through the day ahead of the
front.

Precipitation with the front is expected to begin along the coast
during the afternoon and in the interior late today or this evening.

Ksea... The advertised lower level MVFR ceilings developed a few
hours early and should linger through much of morning. They should
break out and give way to increasing mid/higher level clouds through
the rest of the day. Rain to begin just after 00z. Southerly winds
of 6-10 kt to prevail through the day and rise to 10-15 kt tonight.

Buehner

Marine A ridge of higher pressure over western washington this
morning. The next pacific frontal system about 450 nm off the coast
early this morning is expected to weaken as it approaches the coast
today. Coastal water winds should pick up to small craft advisory
levels today ahead of this system as well as in the eastern strait
and northern inland waters this evening.

Post-frontal onshore flow should be quite healthy with a good
potential of gale force winds in the strait late Wed as higher
pressure builds behind the frontal system. A gale watch now in place
for the central and eastern strait. The strong onshore flow should
ease by Fri as higher surface pressure builds onshore. Buehner

Sew watches/warnings/advisories
Wa... None.

Pz... Small craft advisory coastal waters, eastern strait of juan de
fuca and northern inland waters.

Gale watch for the central and eastern strait of juan de fuca
later Wed afternoon and evening.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CPMW1 16 mi88 min SSE 15 G 18 50°F
CHYW1 - 9449424 - Cherry Point, WA 16 mi88 min SSE 15 G 17 1012.5 hPa
PBFW1 - Padilla Bay Reserve, WA 20 mi130 min S 5.1 46°F 1013 hPa44°F
FRDW1 - 9449880 - Friday Harbor, WA 31 mi124 min SSW 7 G 11 48°F 48°F1013.2 hPa
SISW1 - Smith Island, WA 35 mi100 min NNE 19 G 21 48°F 1012.9 hPa (+0.0)
46088 - New Dungeness, WA (Hein Bank) 45 mi80 min SE 5.8 G 7.8 49°F 49°F1 ft1012.6 hPa46°F
PTWW1 - 9444900 - Port Townsend, WA 46 mi88 min ESE 9.9 G 14 49°F 49°F1013.8 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, WA3 mi1.8 hrsS 9 G 1610.00 miOvercast51°F46°F83%1013.4 hPa
Burlington/Mount Vernon, Skagit Regional Airport, WA20 mi85 minESE 510.00 miOvercast46°F44°F93%1013.5 hPa
Eastsound, Orcas Island Airport, WA21 mi85 minS 1110.00 miPartly Cloudy48°F44°F87%1012.2 hPa

Wind History from BLI (wind in knots)
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Last 24hrNE4NE3N3CalmSE4N4NW6--6NW10W8W86W4CalmS4S5S4S7S9S9S12
G17
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1 day agoS11SE13S8S8S9S6S6S7SE10S10SE11
G17
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SE11SE8SE8SE6SE6SE5E3NE3NE4NE3
2 days agoN5N7N8N9N7N6CalmS10
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G16
SE10S9

Tide / Current Tables for Bellingham, Washington
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Bellingham
Click for Map
Tue -- 04:28 AM PDT     8.03 feet High Tide
Tue -- 05:59 AM PDT     Sunrise
Tue -- 06:00 AM PDT     Moonrise
Tue -- 11:07 AM PDT     1.03 feet Low Tide
Tue -- 05:37 PM PDT     7.47 feet High Tide
Tue -- 07:25 PM PDT     Moonset
Tue -- 08:16 PM PDT     Sunset
Tue -- 11:14 PM PDT     3.86 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.956.27.387.97.25.84.22.71.511.32.43.85.36.67.37.46.9654.33.9

Tide / Current Tables for Hale Passage, 0.5 miles SE of Lummi Pt, Washington Current
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Hale Passage
Click for Map
Tue -- 02:14 AM PDT     1.39 knots Max Flood
Tue -- 04:52 AM PDT     -0.00 knots Slack
Tue -- 06:02 AM PDT     Moonrise
Tue -- 06:02 AM PDT     Sunrise
Tue -- 08:53 AM PDT     -1.33 knots Max Ebb
Tue -- 11:57 AM PDT     0.00 knots Slack
Tue -- 03:00 PM PDT     1.73 knots Max Flood
Tue -- 06:24 PM PDT     -0.00 knots Slack
Tue -- 07:24 PM PDT     Moonset
Tue -- 08:15 PM PDT     Sunset
Tue -- 09:27 PM PDT     -0.86 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.51.11.41.20.6-0.1-0.5-0.9-1.2-1.3-1.1-0.600.91.51.71.510.3-0.2-0.6-0.8-0.8-0.5

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (8,2,3,4)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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 numerious 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.