Monday, May22, 2017 L-36.com


Marine Weather and Tides
Birch Bay, 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 5:16AMSunset 8:59PM Monday May 22, 2017 2:34 PM PDT (21:34 UTC) Moonrise 3:00AMMoonset 3:59PM Illumination 8% Phase: Waning Crescent; Moon at 27 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- 900 Am Pdt Mon May 22 2017
.gale watch in effect from Tuesday afternoon through late Tuesday night...
Today..NW wind to 10 kt. Wind waves 1 ft or less.
Tonight..W wind 10 to 20 kt becoming S after midnight. Wind waves 1 to 3 ft.
Tue..W wind 5 to 15 kt becoming sw 25 to 35 kt in the afternoon. Wind waves 2 ft or less building to 4 to 6 ft in the afternoon. Patchy fog in the morning.
Tue night..W wind 25 to 35 kt easing to 15 to 25 kt after midnight. Wind waves 4 to 6 ft subsiding to 2 to 4 ft after midnight.
Wed..W wind 10 to 20 kt. Wind waves 1 to 3 ft.
Wed night..SW wind 15 to 25 kt becoming W 5 to 15 kt after midnight. Wind waves 2 to 4 ft subsiding to 2 ft or less after midnight.
Thu..NW wind 5 to 15 kt becoming sw. Wind waves 2 ft or less.
Fri..NW wind to 10 kt becoming sw 10 to 20 kt. Wind waves 1 ft or less building to 1 to 3 ft.
PZZ100 900 Am Pdt Mon May 22 2017
Synopsis for the northern and central washington coastal and inland waters..A surface ridge just offshore will maintain light onshore flow through this afternoon...then becoming moderate this evening. An approaching upper level trough will trigger a marine push on Tuesday with very strong onshore flow developing through the strait of juan de fuca with a gale expected. Onshore flow will weaken by Wednesday morning. The surface ridge will remain just offshore Wednesday through Friday allowing weak to moderate onshore flow to continue.

7 Day Forecast for Marine Location Near Birch Bay, WA
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location: 48.75, -122.9     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 221601
afdsew
area forecast discussion
national weather service seattle wa
901 am pdt Mon may 22 2017

Synopsis Warmest days of the year for most places today with an
upper level ridge over the area. Strong onshore flow will develop
on Tuesday with an upper level trough rapidly moving toward
western washington spreading clouds into the area and bringing
cooler conditions. The upper trough will weaken and shift east
Thursday and an upper ridge will arrive next weekend.

Short term Today will be several degrees warmer than yesterday
as an upper ridge crosses the area. Highs will be mostly in the
70s coast, strait, and northern interior near the water and in the
80s elsewhere. A few record highs are possible. Mostly sunny
weather will prevail with thin high clouds at times.

The upper ridge will shift inland tonight with upper heights
beginning to fall across the region. Low clouds could reach the
coast tonight which is a little faster than currently advertised.

An upper trough will move over the pacific northwest on Tuesday.

This will induce a strong onshore push. The coast should be mostly
cloudy but the interior looks mostly sunny again on Tuesday. The
main impact from the onshore push will be too cool high temperatures
10-15 degrees on Tuesday. There will also be some windy conditions
for a few hours over the admiralty inlet area late Tuesday
afternoon and into the evening as strong west winds develop. It
looks like at least a wind advisory will be needed to for this.

An upper trough and low level onshore flow will keep things mostly
cloudy on Wednesday. There could be a few showers but nothing
significant. Highs will cool to near normal. Schneider

Long term Previous discussion... Extended models in pretty good
agreement this morning with the upper level trough over the area
on Thursday and the trough moving east Friday. Upper level ridge
offshore building into western washington for the holiday weekend.

Chance of showers on Thursday with the shower chances confined to
the cascades on Friday. Have taken the chance of showers out of
the forecast for cascades on Saturday. Extended models are
trending toward a stronger ridge Friday through the holiday
weekend. If the trend continues look for the chance of showers to
get taken out of the forecast for the lowlands on Thursday. High
temperatures will slowly warm through the period from 60s and
lower 70s on Thursday to upper 60s to near 80 by Sunday. Felton

Aviation An upper level ridge will remain over W wa today then
drift E tonight. A surface ridge just offshore will maintain weak
to moderate low level onshore flow. The air mass will remain dry
through tonight with goodVFR conditions and only high clouds
overhead.

An upper level shortwave trough approaching from the NW will
trigger a marine push with strong onshore flow developing Tuesday
morning and persisting through Tuesday night, particularly
through the strait of juan de fuca. The marine push will spread
low stratus clouds across the wa coast and through the strait for
areas of ifr conditions.

Ksea... GoodVFR today and tonight with just high clouds. Surface
winds will remain northerly 4-10 kt. Kam

Marine A surface ridge just offshore will maintain weak onshore
flow through this afternoon, becoming moderate tonight. Sca
conditions are expected to develop in the central and E strait of
juan de fuca later this evening, then persisting into Tuesday
morning.

An upper level trough approaching from the NW will trigger a very
strong marine push on Tuesday, with very strong W winds
developing through the strait of juan de fuca. Gale force winds
are expected to develop through the strait probably before midday
Tuesday. Peak winds are expected to reach 35-45 kt. However, the
06z canadian mesoscale model indicates there could be an hour or
two of storm force winds in the central and E strait late Tuesday
afternoon or early Tuesday evening.

Gale force winds are also expected to spread over adjacent waters
in the north interior and admiralty inlet Tuesday evening and
possibly Tuesday afternoon.

Onshore flow should begin weakening by late Tuesday night.

However, weaker onshore flow will persist Wednesday through
Friday.

A steep fresh swell will develop off vancouver island and push
into the coastal waters later Tuesday into Wednesday. Kam

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

Pz... Small craft advisory from 6 pm this evening to 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.

Small craft advisory from 9 pm this evening to 9 am pdt Tuesday
for central u.S. Waters strait of juan de fuca-east
entrance u.S. Waters strait of juan de fuca.

Gale warning from 9 am Tuesday to 5 am pdt Wednesday for central
u.S. Waters strait of juan de fuca-east entrance u.S.

Waters strait of juan de fuca.

Gale watch from Tuesday afternoon through late Tuesday night for
admiralty inlet-northern inland waters including the san
juan islands.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHYW1 - 9449424 - Cherry Point, WA 11 mi46 min NW 4.1 G 4.1 1020.8 hPa
CPMW1 11 mi46 min NW 4.1 G 5.1 60°F
FRDW1 - 9449880 - Friday Harbor, WA 15 mi58 min NNE 2.9 G 5.1 69°F 50°F1020.7 hPa
46118 17 mi109 min S 7.8 64°F 1020.5 hPa53°F
SISW1 - Smith Island, WA 30 mi34 min SW 4.1 G 5.1 62°F 1020.6 hPa (-1.9)
PBFW1 - Padilla Bay Reserve, WA 30 mi64 min N 12 68°F 1020 hPa53°F
46088 - New Dungeness, WA (Hein Bank) 32 mi44 min W 1.9 G 3.9 57°F 51°F1 ft1019.9 hPa (-1.9)52°F
PTWW1 - 9444900 - Port Townsend, WA 45 mi46 min W 8 G 9.9 69°F 51°F1021.1 hPa

Wind History for Cherry Point, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Eastsound, Orcas Island Airport, WA3 mi39 minNNW 710.00 miFair66°F51°F60%1021 hPa
Friday Harbor, Friday Harbor Airport, WA17 mi41 minN 710.00 miFair76°F48°F39%1020.6 hPa
Bellingham, Bellingham International Airport, WA19 mi41 minWNW 710.00 miFair75°F55°F50%1020.9 hPa

Wind History from ORS (wind in knots)
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Last 24hrNW553N4CalmCalmCalmCalmCalmS4CalmS4CalmCalmCalmN3N3N6NW5NW6N4NW5NW7NW5
1 day agoNW6N5N5N4S5S6S7S6S6S8SE5SE4SE3CalmS3CalmCalmCalmN5NW5N44NW5NW5
2 days agoNW3N3CalmCalmNW4CalmCalmCalmCalmCalmCalmS3S4S33Calm3NW64NW6NW5N65NW4

Tide / Current Tables for Echo Bay, Sucia Islands, Strait of Georgia, Washington
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Echo Bay
Click for Map
Mon -- 02:47 AM PDT     8.50 feet High Tide
Mon -- 03:59 AM PDT     Moonrise
Mon -- 05:21 AM PDT     Sunrise
Mon -- 09:49 AM PDT     1.39 feet Low Tide
Mon -- 04:03 PM PDT     6.34 feet High Tide
Mon -- 04:58 PM PDT     Moonset
Mon -- 08:55 PM PDT     Sunset
Mon -- 09:23 PM PDT     3.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
67.38.28.5875.642.51.61.41.92.83.95.166.36.25.64.73.93.43.54.3

Tide / Current Tables for Parker Reef Light, 1 mile North of, Washington Current
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Parker Reef Light
Click for MapFlood direction 65 true
Ebb direction 265 true

Mon -- 01:32 AM PDT     1.04 knots Max Flood
Mon -- 02:40 AM PDT     -0.00 knots Slack
Mon -- 03:59 AM PDT     Moonrise
Mon -- 05:21 AM PDT     Sunrise
Mon -- 06:06 AM PDT     -0.94 knots Max Ebb
Mon -- 11:05 AM PDT     0.00 knots Slack
Mon -- 02:43 PM PDT     0.91 knots Max Flood
Mon -- 04:19 PM PDT     -0.00 knots Slack
Mon -- 04:58 PM PDT     Moonset
Mon -- 06:33 PM PDT     -0.43 knots Max Ebb
Mon -- 08:55 PM PDT     Sunset
Mon -- 10:30 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.810.8-0.1-0.5-0.8-0.9-0.9-0.7-0.6-0.3-00.40.70.90.90.3-0.2-0.4-0.4-0.3-0.2-0.10.2

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 (17,4,5,8)
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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.