Saturday, May26, 2018 L-36.com


Marine Weather and Tides
Grapeview, WA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:20AMSunset 8:54PM Friday May 25, 2018 9:23 PM PDT (04:23 UTC) Moonrise 3:47PMMoonset 2:55AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 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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PZZ135 Puget Sound And Hood Canal- 817 Pm Pdt Fri May 25 2018
Tonight..NW wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Sat..SW wind to 10 kt. Wind waves 1 ft or less.
Sat night..N wind to 10 kt. Wind waves 1 ft or less.
Sun..Light wind becoming sw to 10 kt in the afternoon. Wind waves 1 ft or less.
Sun night..NW wind to 10 kt becoming variable after midnight. Wind waves 1 ft or less.
Mon..Light wind. Wind waves less than 1 ft.
Mon night..NW wind to 10 kt. Wind waves 1 ft or less.
Tue..Light wind becoming variable 5 to 15 kt. Wind waves 2 ft or less.
Wed..SW wind 5 to 15 kt becoming variable. Wind waves 2 ft or less.
PZZ100 817 Pm Pdt Fri May 25 2018
Synopsis for the northern and central washington coastal and inland waters..Moderate to occasionally strong onshore flow will continue through the memorial day weekend and into the middle of next week. This will lead to near gale or gale force winds over the central and eastern strait of juan de fuca, mainly during the late afternoon through overnight hours each day. The strongest onshore flow is expected this evening.

7 Day Forecast for Marine Location Near Grapeview, WA
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location: 47.3, -122.85     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 260317
afdsew
area forecast discussion
national weather service seattle wa
817 pm pdt Fri may 25 2018

Synopsis High pressure offshore and lower pressure inland is
giving strong onshore flow. The onshore flow will bring clouds
into the area later tonight into Saturday morning along with
areas of drizzle or light rain. Onshore flow will decrease
somewhat Sunday into memorial day resulting in less night and
morning clouds. An upper level trough will give an increase in
clouds, cooler temperatures, and a slight chance of showers toward
the middle to end of next week.

Short term Clouds have been hanging tough over the central
portions of puget sound this evening and over the cascades.

Elsewhere, clouds have cleared out today giving nice conditions.

With rather strong onshore flow this evening, expect clouds to
fill in quickly after 06z, short term models, particularly the
nam12, show some very light rain or drizzle forming along the
coast and possibly in an area of convergence over the central
puget sound area later tonight into early Saturday as the marine
layer deepens to over 5000 ft and upward vertical motion within
the moist layer develops in response to the passage of a weak
upper level trough.

The upper trough moving across the area tonight will move well
east of the area by Saturday afternoon resulting in rebounding 500
mb heights across western washington. With the marine air in
place, temperatures will rise into the 60s across the area.

However, it is expected to clear out during the afternoon hours
and onshore pressure gradients Saturday evening are expected to be
much lower than they are this evening.

Expect fewer marine clouds Saturday night and Sunday. With
sunshine, temperatures on Sunday will rise into the mid 60s along
the coast and into the lower to mid 70s inland. The warming trend
will be short-lived however as onshore flow increases again Sunday
night and marine air moves back inland late Sunday night into
memorial day.

Current forecasts are in good shape. No updates are required.

Albrecht

Long term From the previous long term discussion: Tuesday
looks similar to Monday. Something of a change in the patten
occurs for the Wednesday through Friday period, as an upper trough
sets up over the region. Heights will be lower, and there will be
a chance of showers at times. Currently the best shot at a little
rain are Wednesday and again Thursday night. Highs will be in the
60s all three days. Burke

Aviation A weak upper level trough will move across western
washington this evening. This will help to maintain, or even
strengthen, onshore flow tonight and deepen the moist and stable
marine layer. Expect clouds to fill in between 06z and 09z tonight
with fairly widespread coverage of CIGS at or below 020 later
tonight into Saturday morning. Lift within the deepening marine
layer will produce areas of drizzle or light rain along the coast
and in the central puget sound lowlands, and the drizzle may cause
local ifr conditions in reduced CIGS and visbys.

Moderate southwest flow aloft will become light northwesterly
late tonight. Above the marine layer, the air mass will be dry and
stable.

Conditions will improve toVFR around 18z Saturday withVFR
conditions continuing throughout the area through Saturday night.

Albrecht
ksea... The above discussion applies. North wind this evening will
turn southerly 4-7 kt by or shortly after 06z this evening.

MVFR CIGS will fill in between 07z and 09z with CIGS below 020
expected. 3-5sm -dz is possible 09z-15z. Clouds will lift and
scatter by 21z Saturday. Albrecht

Marine Moderate to strong onshore flow tonight is giving gales
to the central and eastern portions of the strait of juan de fuca
and small craft advisory conditions to admiralty inlet and the
northern inland waters adjacent to the east entrance. The onshore
flow and wind will gradually relax late tonight into Saturday
morning. Sea breeze produced small craft advisory conditions over
the near-shore coastal waters near grays harbor will relax after 9
pm.

Onshore flow will weaken Saturday through midday Sunday as high
pressure builds into the waters. But diurnally driven sea breezes
will result in small craft advisory conditions in portions of the
strait during the late afternoon and overnight hours on Saturday.

Onshore pressure gradients are expected to increase once again
Sunday afternoon and evening. Gales are possible any evening from
Sunday through Wednesday. Albrecht

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 9 pm pdt this evening for coastal
waters from point grenville to CAPE shoalwater out 10 nm-
west entrance u.S. Waters strait of juan de fuca.

Gale warning until 3 am pdt Saturday for central u.S. Waters
strait of juan de fuca-east entrance u.S. Waters strait of
juan de fuca.

Small craft advisory until 3 am pdt Saturday 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
46121 7 mi51 min 61°F 1016.8 hPa45°F
TCMW1 - 9446482 - Tacoma Met, WA 23 mi54 min W 6 G 8
TCNW1 - 9446484 - Tacoma, WA 23 mi54 min 62°F 51°F1016.9 hPa
WPOW1 - West Point, WA 33 mi84 min NNE 9.9 G 11 57°F 1016.4 hPa (+0.0)49°F
EBSW1 - 9447130 - Seattle, WA 34 mi54 min NNW 2.9 G 5.1 63°F 53°F1016.6 hPa
46120 40 mi50 min SE 5.8 57°F 1016.2 hPa49°F
46125 44 mi46 min 7.8 56°F 1016.2 hPa46°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bremerton, Bremerton National Airport, WA13 mi28 minN 010.00 miOvercast59°F48°F67%1018.8 hPa
Tacoma, Tacoma Narrows Airport, WA14 mi31 minSSW 410.00 miOvercast59°F41°F51%1017.5 hPa
Shelton, Shelton Sanderson Field, WA17 mi31 minWSW 610.00 miFair56°F42°F60%1016.7 hPa
Fort Lewis / Gray U. S. Army Airfield, WA20 mi86 minWSW 910.00 miPartly Cloudy62°F45°F54%1017 hPa
Olympia, Olympia Airport, WA22 mi30 minSSW 810.00 miFair55°F41°F59%1017.5 hPa
Tacoma / McChord Air Force Base, WA22 mi86 minW 710.00 miPartly Cloudy62°F44°F51%1017 hPa

Wind History from PWT (wind in knots)
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Last 24hrSE3E3CalmCalmCalmE3CalmCalmCalmCalmE3CalmSE4CalmCalm3Calm3N7E7NE8NE5NE4Calm
1 day agoS5S4SW6S8S8S6S6S54S5SW7SW5S3S3W3CalmCalm64CalmW4N3E5NE3
2 days agoCalmCalmCalmCalmNE3NE3CalmSE3CalmCalmCalmSW34S5SW6W5N36W6S10SW7SW12SW12SW6

Tide / Current Tables for McMicken Island, Case Inlet, Puget Sound, Washington
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McMicken Island
Click for Map
Sat -- 03:45 AM PDT     14.31 feet High Tide
Sat -- 04:21 AM PDT     Moonset
Sat -- 05:23 AM PDT     Sunrise
Sat -- 10:50 AM PDT     0.49 feet Low Tide
Sat -- 05:20 PM PDT     12.03 feet High Tide
Sat -- 05:53 PM PDT     Moonrise
Sat -- 08:53 PM PDT     Sunset
Sat -- 10:42 PM PDT     5.02 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.29.812.313.914.313.411.58.75.52.710.51.53.66.49.1111211.810.68.66.65.35.1

Tide / Current Tables for Pickering Passage, North, Washington Current
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Pickering Passage
Click for Map
Sat -- 01:44 AM PDT     0.61 knots Max Flood
Sat -- 04:21 AM PDT     Moonset
Sat -- 05:05 AM PDT     -0.00 knots Slack
Sat -- 05:23 AM PDT     Sunrise
Sat -- 09:13 AM PDT     -0.73 knots Max Ebb
Sat -- 12:06 PM PDT     0.01 knots Slack
Sat -- 02:39 PM PDT     0.71 knots Max Flood
Sat -- 05:54 PM PDT     Moonrise
Sat -- 06:25 PM PDT     -0.00 knots Slack
Sat -- 08:54 PM PDT     Sunset
Sat -- 09:57 PM PDT     -0.49 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.50.60.50.30-0.3-0.5-0.7-0.7-0.7-0.5-00.40.70.70.60.40.1-0.1-0.3-0.5-0.5-0.4

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 (0,6,7,8)
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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.