Friday, February22, 2019 L-36.com


Marine Weather and Tides
La Conner, WA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:02AMSunset 5:43PM Friday February 22, 2019 7:41 PM PST (03:41 UTC) Moonrise 9:57PMMoonset 9:00AM Illumination 86% Phase: Waning Gibbous; Moon at 18 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- 244 Pm Pst Fri Feb 22 2019
.small craft advisory in effect until 6 pm pst this evening...
Tonight..SW wind 15 to 25 kt easing to 10 to 20 kt after midnight. Wind waves 2 to 4 ft. A chance of showers.
Sat..SE wind 5 to 15 kt. Wind waves 2 ft or less. Showers likely.
Sat night..E wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers likely.
Sun..E wind 15 to 25 kt becoming ne to 10 kt in the afternoon. Wind waves 2 to 4 ft subsiding to 1 ft or less in the afternoon.
Sun night..N wind 5 to 15 kt becoming ne 20 to 30 kt after midnight. Wind waves 2 ft or less building to 3 to 5 ft after midnight.
Mon..NE wind 20 to 30 kt. Wind waves 3 to 5 ft.
Mon night..N wind 20 to 30 kt becoming E after midnight. Wind waves 3 to 5 ft.
Tue..NE wind 20 to 30 kt. Wind waves 3 to 5 ft.
Wed..NE wind 15 to 25 kt easing to 5 to 15 kt. Wind waves 2 to 4 ft subsiding to 2 ft or less.
PZZ100 244 Pm Pst Fri Feb 22 2019
Synopsis for the northern and central washington coastal and inland waters.. A frontal system has started to move through the area today and will continue to sink southeastward today. A weak low will drift south to the oregon coast by Sunday morning. Northeasterly offshore flow will develop Saturday night and continue through Tuesday with high pressure over british columbia and lower pressure south of washington.


7 Day Forecast for Marine Location Near La Conner, WA
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location: 48.39, -122.5     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 222333
afdsew
area forecast discussion
national weather service seattle wa
333 pm pst Fri feb 22 2019

Synopsis Onshore flow will continue tonight for showers and
mountain snow. A cool upper trough will follow the front this
weekend. A system may bring more lowland snow to the region late
Sunday night and Monday.

Short term tonight through Monday We had mixed precipitation
as a cold front moved in today, but most areas are now reporting
rain with temps in the 40s. Showers will mainly impact the
cascades tonight with scattered coverage elsewhere. We'll likely
see a band of heavier showers in king county due to a puget sound
convergence zone. A winter weather advisory remains in effect for
the west slopes of the cascades where 6-11" of snow is expected
through tonight.

Snow levels will remain low through the weekend with a cool upper
level trough over the region. We may see rain snow mix with the
showers but significant accumulations are not expected. Daytime
max temps will be in the 40s which should limit impacts from any
lowland snow. Showers will taper down on Sunday.

There is another threat of lowland snow late Sunday night and
Monday, but there's still a lot of uncertainty in the details. We
have a classic setup (overrunning event) where snow levels will
remain low (near the surface) while moisture spreads north from a
warm front. What's unknown is how far north the moisture will
reach and how long the duration will be. The latest ECMWF is
wetter compared to the GFS for a wide range of snow totals.

Nonetheless, we may see more winter weather impacts in the CWA and
will continue to monitor how this system evolves. 33

Long term Tuesday through Friday Showers will continue
through the rest of the week as an upper level trough stalls
offshore then shifts inland. Guidance shows we will remain a few
degrees below normal through the period. Snow levels will be
higher, mostly in the 1,000-2,000 ft range, for rain in the
lowlands. We may see a break in the action toward the end of the
week as a ridge builds in. 33

Aviation Northwesterly flow aloft will persist briefly in the
wake of a cold front, before shifting back to the west during the
overnight hours. Ceilings have already improved for terminals
along the coast and are expected to improve for puget sound
terminals around 00-04z as the band of heavier precipitation
continues to move southeastward out of the area. Ceilings could
becomeVFR behind the frontal passage, however are expected to
become MVFR again overnight as a moist post- frontal air mass
remains in place and surface gradients weaken.

Ksea... Current radar imagery has indicated that rain has tapered
off at the terminal over the last hour. Current ifr ceilings are
expected to lift in the wake of the frontal passage, with MVFR
ceilings remaining possible as the airmass remains moist. Surface
winds have shifted to the southwest and will continue to ease
into the overnight hours. 14

Marine Small craft northwesterlies will persist along the
coastal waters in the wake of a cold frontal passage. Winds have
shifted to the west in the strait and increased to near gale-
speeds for areas along the central and eastern strait. A weak
surface low will move south to the oregon coast by Sunday morning.

Northeasterly offshore flow will redevelop late Saturday night
and continue through Tuesday with high pressure over british
columbia and lower pressure to the south of washington. 14

Hydrology River flooding is not expected for the next 7 days.

Sew watches warnings advisories
Wa... Winter weather advisory until 6 am pst Saturday for cascades of
pierce and lewis counties-cascades of snohomish and king
counties-cascades of whatcom and skagit counties.

Pz... Small craft advisory until 4 am pst Saturday 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 for rough bar until 9 am pst Saturday for
grays harbor bar.

Gale warning until midnight pst tonight for central u.S. Waters
strait of juan de fuca-east entrance u.S. Waters strait of
juan de fuca.

Small craft advisory until 6 pm pst this evening for northern
inland waters including the san juan islands.

Small craft advisory until midnight pst tonight for admiralty
inlet-puget sound and hood canal-west entrance u.S. Waters
strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PBFW1 - Padilla Bay Reserve, WA 5 mi72 min SE 5.1 37°F 1013 hPa36°F
SISW1 - Smith Island, WA 18 mi52 min W 21 G 25 45°F 1013.5 hPa (+1.7)35°F
46118 23 mi47 min SSW 12 40°F 1012.7 hPa37°F
PTWW1 - 9444900 - Port Townsend, WA 24 mi42 min SE 13 G 15 1014.9 hPa (+1.4)
FRDW1 - 9449880 - Friday Harbor, WA 29 mi66 min E 4.1 G 5.1 42°F 46°F1013.3 hPa
46088 - New Dungeness, WA (Hein Bank) 35 mi52 min W 19 G 23 44°F 46°F3 ft1012.7 hPa (+1.8)36°F
CHYW1 - 9449424 - Cherry Point, WA 35 mi42 min 1013.4 hPa (+1.5)
CPMW1 35 mi42 min ESE 4.1 G 6
46120 44 mi48 min NE 5.8 41°F 1013.9 hPa37°F

Wind History for Port Townsend, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington/Mount Vernon, Skagit Regional Airport, WA7 mi67 minE 410.00 miOvercast37°F37°F100%1013.9 hPa
Whidbey Island Naval Air Station - Ault Field, WA8 mi1.8 hrsN 310.00 miMostly Cloudy43°F35°F74%1014.1 hPa
Arlington Municipal Airport, WA23 mi46 minSE 1010.00 miLight Rain37°F35°F93%1014.9 hPa

Wind History from BVS (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmE4CalmSE8
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1 day agoNW4N6CalmN5CalmNE4N3N5N4NE6NE4NE3N3E4E4CalmS5CalmCalmNW5CalmNW3CalmCalm
2 days agoNE5NE6N3CalmCalmNW4NW5NW4CalmCalmCalmCalmCalmNE4Calm3NW4NW5NW7NW7
G12
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Tide / Current Tables for La Conner, Washington
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La Conner
Click for Map
Fri -- 12:59 AM PST     -0.04 feet Low Tide
Fri -- 07:05 AM PST     Sunrise
Fri -- 07:21 AM PST     11.56 feet High Tide
Fri -- 09:00 AM PST     Moonset
Fri -- 01:48 PM PST     2.57 feet Low Tide
Fri -- 05:42 PM PST     Sunset
Fri -- 07:20 PM PST     9.53 feet High Tide
Fri -- 09:57 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.6-00.72.75.48.210.411.511.410.38.56.34.32.92.63.456.98.69.59.38.46.84.8

Tide / Current Tables for Deception Pass, Washington Current
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Deception Pass
Click for Map
Fri -- 02:08 AM PST     7.18 knots Max Flood
Fri -- 05:26 AM PST     -0.03 knots Slack
Fri -- 07:05 AM PST     Sunrise
Fri -- 08:20 AM PST     -8.15 knots Max Ebb
Fri -- 09:00 AM PST     Moonset
Fri -- 11:42 AM PST     0.05 knots Slack
Fri -- 02:33 PM PST     6.45 knots Max Flood
Fri -- 05:35 PM PST     -0.00 knots Slack
Fri -- 05:43 PM PST     Sunset
Fri -- 08:34 PM PST     -7.94 knots Max Ebb
Fri -- 09:57 PM PST     Moonrise
Fri -- 11:44 PM PST     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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4.56.47.26.85.42.8-4.6-7-8.1-7.9-6.7-4.62.156.36.35.33.1-3.7-6.4-7.7-7.8-6.8-4.7

Weather Map and Satellite Images
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wmap_P
GOES 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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Wind Forecast for Seattle, WA (22,6,7,8)
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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 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.