Wednesday, June28, 2017 L-36.com


Marine Weather and Tides
Marrowstone, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 5:10AMSunset 9:17PM Wednesday June 28, 2017 6:53 PM PDT (01:53 UTC) Moonrise 9:49AMMoonset 11:26PM Illumination 25% Phase: Waxing Crescent; Moon at 5 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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PZZ134 Admiralty Inlet- 255 Pm Pdt Wed Jun 28 2017
Tonight..Variable wind 5 to 15 kt. Wind waves 2 ft or less.
Thu..SE wind to 10 kt. Wind waves 1 ft or less.
Thu night..NW wind 5 to 15 kt easing to 10 kt after midnight. Wind waves 2 ft or less.
Fri..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Fri night..NW wind 15 to 25 kt easing to 10 to 20 kt after midnight. Wind waves 2 to 4 ft subsiding to 1 to 3 ft after midnight.
Sat..Variable wind to 10 kt becoming nw in the afternoon. Wind waves 1 ft or less.
Sat night..NW wind 10 to 20 kt. Wind waves 1 to 3 ft.
Sun..Variable wind 5 to 15 kt becoming nw 15 to 25 kt. Wind waves 2 ft or less building to 2 to 4 ft.
Mon..NW wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 255 Pm Pdt Wed Jun 28 2017
Synopsis for the northern and central washington coastal and inland waters..High pressure offshore with low pressure east of the cascades will maintain onshore flow of varying strength through this weekend. The flow will become strong enough Friday afternoon and evening for the possibility of gale force winds over parts of the strait of juan de fuca.

7 Day Forecast for Marine Location Near Marrowstone, WA
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location: 48.05, -122.68     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 282135
afdsew
area forecast discussion
national weather service seattle wa
230 pm pdt Wed jun 28 2017

Synopsis A surface ridge offshore will maintain onshore flow into
early next week. This will produce typical early summer weather with
mild temperatures, morning low clouds, and afternoon sunshine. An
upper level ridge will weaken the onshore flow and produce a minor
warming trend Thursday and Friday. Stronger onshore flow will bring
more cloud cover this weekend, and possibly light rain to the coast.

Short term Satellite imagery shows that while the northern third
of western washington has cleared out nicely, the rest of the region
has been slow to clear. There has been clearing from the edges, so
some hours of mostly clear conditions are likely for the seattle
metro area this evening, even if the southwest interior remains
mostly cloudy. For tonight have a partly cloudy forecast for most
areas, except mostly cloudy on the coast.

The upper level ridge offshore will slowly move east tonight and
Thursday. The 500 mb heights will rise over the area with the ridge
axis just offshore; heights will be in the low to mid 580s. Low
level onshore flow will weaken, resulting in less morning cloud
cover for the interior Thursday morning. With less cloud cover and
the warming temperatures aloft, highs on Thursday will be a few
degrees warmer with mid and upper 60s on the coast and widespread
70s over the interior.

The upper level ridge will move through the area Thursday night into
Friday morning and will be just east of the area Friday afternoon.

Onshore pressure gradients don't begin to increase again until
Friday afternoon, giving a mostly sunny day across most of the area
on Friday. Friday will be the warmest day in the forecast period
with mostly lower 80s from seattle south. North of seattle 70s
will be common with highs near 70 on the coast.

Heights fall on Saturday as an upper trough moves through. Highs
will fall into the 70s, 60s coast, but the GFS and in fact all
models are stubbornly dry with this weak upper trough. Have kept a
mostly sunny forecast going on Saturday but there could be at least
morning clouds. The surface gradient is forecast to be strongly
onshore Friday night into Saturday which would imply a fair amount
of cloudiness. Burke

Long term The upper pattern Sunday through Tuesday has a weak
trough over the area. At the surface the flow is moderate to strong
onshore. There will be morning clouds and possibly afternoon sun
each day, with highs in the low to mid 70s. Have limited any nonzero
pops to the coast. Wednesday looks a bit warmer as heights rise and
onshore surface flow weakens. Burke

Aviation Upper level high pressure offshore will slowly make its
way eastward today with flow aloft mainly from the northwest through
Thursday. Low level flow will remain onshore. Low level stratus are
hanging on longer than initially anticipated... But current satellite
trends show that burn off is starting to kick in and would expect
skies to start to clear as mid-afternoon approaches. Thus... Cigs
likely to remain MVFR for a little bit longer before scattering out
after 22z-ish. Clearing skies will prevail for the remainder of the
afternoon and into the overnight hours before another low stratus
deck can be expected to roll over the area early Thursday morning.

Ksea... Above discussion applies. Winds southwesterly 6-10 kts
turning northerly by this evening before becoming light and
variable overnight. Smr

Marine Higher pres offshore with lower pres E of the cascades
will maintain onshore flow of varying strength through the week.

Most recent model data shows SCA winds over the strait by late this
afternoon... So posted the advisory with morning package and that
still looks good. SCA winds may return for the strait thu
evening night as well. Strengthening onshore flow Friday afternoon
and evening still looks like it may result in gales for portions of
the strait... But will leave for next shift to determine whether or
not to post a watch. Winds over remaining waters look to be fairly
uneventful in the near term... Although models hint that winds over
the coastal waters may approach SCA thresholds Friday evening.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory for central and east strait late this
afternoon and tonight.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTWW1 - 9444900 - Port Townsend, WA 6 mi53 min ESE 1 G 5.1 62°F 54°F1017.4 hPa (+0.0)
SISW1 - Smith Island, WA 20 mi53 min S 13 G 13 61°F 1016.8 hPa (+0.0)
WPOW1 - West Point, WA 30 mi53 min SSE 9.9 G 9.9 63°F 1017.5 hPa (+0.0)52°F
PBFW1 - Padilla Bay Reserve, WA 31 mi83 min SSW 8 69°F 1016 hPa56°F
46088 - New Dungeness, WA (Hein Bank) 32 mi63 min W 1.9 G 3.9 58°F 53°F2 ft1016.1 hPa (+0.0)53°F
EBSW1 - 9447130 - Seattle, WA 36 mi53 min WSW 6 G 8 65°F 53°F1017.6 hPa (+0.0)
FRDW1 - 9449880 - Friday Harbor, WA 38 mi77 min SSW 8 G 9.9 64°F 52°F1016.8 hPa
PTAW1 - 9444090 - Port Angeles, WA 41 mi77 min 12 G 13 57°F 51°F1017.2 hPa

Wind History for Port Townsend, WA
(wind in knots)    EDIT      (on/off)   Help
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G14

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Whidbey Island Naval Air Station - Ault Field, WA21 mi57 minSE 810.00 miPartly Cloudy72°F51°F48%1017.8 hPa
Everett Snohomish County, WA23 mi60 minSE 810.00 miMostly Cloudy66°F52°F61%1017.5 hPa

Wind History from NUW (wind in knots)
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Last 24hrW6W6SW6SW3CalmSE3SW8SW9SW9SW7SW7SW7SW5SW7SW7W735NW7N6NW6SE7SE10SE8
1 day agoSW16
G26
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G29
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SW11CalmCalmS5S53CalmCalmE4S6SE9SE8S5W7NW5NW7NW7NW7NW7NW4NW5
2 days agoW6SW6SW8SW74SW7S7SW10
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SW10SW9W6SW12W7W9W8SW10SW14
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G26
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Tide / Current Tables for Mystery Bay, Washington
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Mystery Bay
Click for Map
Wed -- 03:29 AM PDT     4.91 feet Low Tide
Wed -- 05:13 AM PDT     Sunrise
Wed -- 07:41 AM PDT     6.49 feet High Tide
Wed -- 10:49 AM PDT     Moonrise
Wed -- 02:45 PM PDT     -0.85 feet Low Tide
Wed -- 09:14 PM PDT     Sunset
Wed -- 09:59 PM PDT     8.99 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.165.34.955.35.96.46.5653.51.80.3-0.6-0.8-0.11.33.15.27.18.598.6

Tide / Current Tables for Port Townsend Canal, Washington Current
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Port Townsend Canal
Click for MapFlood direction 150 true
Ebb direction 330 true

Wed -- 01:56 AM PDT     0.03 knots Slack
Wed -- 03:38 AM PDT     2.52 knots Max Flood
Wed -- 05:13 AM PDT     Sunrise
Wed -- 06:17 AM PDT     -0.03 knots Slack
Wed -- 09:41 AM PDT     -2.89 knots Max Ebb
Wed -- 10:49 AM PDT     Moonrise
Wed -- 01:25 PM PDT     0.01 knots Slack
Wed -- 04:02 PM PDT     3.33 knots Max Flood
Wed -- 07:28 PM PDT     -0.08 knots Slack
Wed -- 09:14 PM PDT     Sunset
Wed -- 10:31 PM PDT     -2.90 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.3-1.70.42.22.520.8-1.6-2.4-2.8-2.9-2.6-2.1-1.31.62.93.33.12.41.3-1.6-2.5-2.9-2.9

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 (21,6,7,8)
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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.