Friday, August18, 2017 L-36.com


Marine Weather and Tides
Grapeview, 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 6:09AMSunset 8:18PM Thursday August 17, 2017 11:52 PM PDT (06:52 UTC) Moonrise 12:42AMMoonset 4:14PM Illumination 17% Phase: Waning Crescent; Moon at 26 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- 900 Pm Pdt Thu Aug 17 2017
Tonight..N wind 10 kt or less becoming light after midnight. Wind waves 1 ft or less.
Fri..Variable wind 10 kt or less. Wind waves 1 ft or less.
Fri night..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Sat through Mon..N wind 5 to 15 kt. Wind waves 2 ft or less.
Tue..Variable wind 10 kt or less. Wind waves 1 ft or less.
PZZ100 900 Pm Pdt Thu Aug 17 2017
Synopsis for the northern and central washington coastal and inland waters..A typical august pattern will prevail through the middle of next week. Expect onshore flow of varying strength to persist due to higher pres offshore with lower pres east of the cascades.

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 180419
afdsew
area forecast discussion
national weather service seattle wa
930 pm pdt Thu aug 17 2017

Synopsis Seasonable summer weather will continue through
Friday with morning clouds and afternoon sunshine. A weak system
will brush the area Friday bringing slightly cooler conditions and a
chance of light rain or drizzle mainly to the north coast and north
cascades. High pressure will begin to rebuild over the region Sunday
afternoon, reinforcing dry and warmer weather into early next week.

Short term Onshore flow will bring stratus back to much of the
interior late tonight into early Friday morning. A weakening frontal
system will pass to the north of the area Friday resulting in a
slight
chance of light rain over the north coast in the morning and over the
north cascades during the afternoon. More than anything this feature
will likely bring little more than mid and high level clouds over
the northern half of the area Friday. Low clouds will return again
late Friday night into Saturday with afternoon clearing. Flow aloft
will remain westerly Saturday as the upper level ridge over the
eastern pacific remains slow to rebound. Temperatures should look
pretty similar to Friday with highs in the upper 60s to mid 70s over
parts of the interior.

Long term The dirty ridge and zonal flow over the eastern pacific
will start to break down as an upper level trough digs into the gulf
of alaska from the bering sea Sunday. This will result in the upper
level ridge amplifying downstream of the approaching trough. Heights
will begin to rise over western washington Sunday afternoon through
Monday. Rising heights and warming aloft will help high temperatures
creep back up into the upper 70s to low 80s over the interior on
Monday and Tuesday with mostly sunny to sunny skies. The sky
forecast continues to look good for the eclipse on Monday. The ridge
axis will shift east Tuesday ahead of a weak upper level trough
approaching the region from the west. Medium range models continue
to differ on the timing and strength of this system hinting at a
chance of showers Wednesday afternoon into Thursday.

Aviation Westerly flow aloft through Friday with weak
disturbance moving by to the north Friday afternoon. Low level
onshore flow continuing through Friday.

Just some high clouds over the area this evening. Stratus is just
off the coast. Expect the lower stratus to be confined to the
coast and parts of the southwest interior Friday morning with the
somewhat weaker onshore flow Friday morning. Cloud deck out ahead
of weak system moving by to the north moving over western
washington in the morning with ceilings in the interior in the
4000-6000 foot range with the strato cumulus deck remaining over
the area into the evening hours.

Ksea... Just some high clouds tonight. Ceilings near 4000 feet
arriving at the terminal 12z-15z. Little change in the ceilings
through the evening hours. Light northwest winds this evening will
becoming light southerlies by 12z. Winds trying to come back
around to northwesterly late Friday afternoon. Felton

Marine A typical august pattern will prevail through the middle
of next
week. Expect onshore flow of varying strength to persist due to
higher pres offshore with lower pres east of the cascades. A gale
watch is in effect Friday night for the central and eastern
strait of juan de fuca with a slight increase in the onshore flow
behind the weak system going by to the north potentially
producing gale force westerlies. Felton

Climate Thursday was the 50th day in a row with a high of 70
degrees or more in seattle. This is the 3rd longest streak on
record surpassed only by the 62 day streak from june 13 to august
13, 2015 and the 61 day streak from july 8 to sept 6, 2003. The
last time seattle had a high below 70 degrees was june 28 with a
high of 68 degrees. Felton

Sew watches warnings advisories
Wa... None.

Pz... Gale watch from Friday evening through late Friday night for
central u.S. Waters strait of juan de fuca-east entrance
u.S. Waters strait of juan de fuca.

Small craft advisory until 5 am pdt Friday for east entrance
u.S. Waters strait of juan de fuca.

Small craft advisory until 6 pm pdt Friday for central u.S.

Waters strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46121 7 mi47 min 3.9 64°F 1020.3 hPa55°F
TCNW1 - 9446484 - Tacoma, WA 23 mi52 min 65°F 55°F1021.2 hPa (+0.8)
TCMW1 - 9446482 - Tacoma Met, WA 23 mi52 min NW 7 G 8
WPOW1 - West Point, WA 33 mi52 min N 11 G 12 60°F 1021.6 hPa (+0.8)53°F
EBSW1 - 9447130 - Seattle, WA 34 mi52 min NNE 2.9 G 8.9 65°F 56°F1021.4 hPa (+1.0)
46120 40 mi43 min N 5.8 60°F 1020.7 hPa52°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 mi56 minN 0 miFair60°F54°F80%1023 hPa
Tacoma, Tacoma Narrows Airport, WA14 mi59 minW 410.00 miFair63°F55°F76%1021.3 hPa
Shelton, Shelton Sanderson Field, WA17 mi59 minWSW 910.00 miFair60°F53°F78%1020.8 hPa
Fort Lewis / Gray U. S. Army Airfield, WA20 mi1.9 hrsW 710.00 miFair65°F58°F78%1021.3 hPa
Olympia, Olympia Airport, WA22 mi58 minSSE 310.00 miFair61°F55°F81%1021.2 hPa
Tacoma / McChord Air Force Base, WA22 mi1.9 hrsNNW 410.00 miFair67°F59°F76%1021.3 hPa

Wind History from PWT (wind in knots)
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Last 24hrS3CalmS4SW3SW3S3SW3CalmCalmCalmCalm4SW5CalmS6S5NW45SW7NE3NE6E4CalmCalm
1 day agoCalmSE3--CalmCalmCalmCalmCalmCalmW5SW5SW3W44SW74SW4NE8NE9NE6SW6S4CalmS3
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmNE3CalmCalm3CalmN9NE53NE8NE8E5NE7NE5CalmE4S3

Tide / Current Tables for McMicken Island, Case Inlet, Puget Sound, Washington
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McMicken Island
Click for Map
Fri -- 01:58 AM PDT     13.28 feet High Tide
Fri -- 02:40 AM PDT     Moonrise
Fri -- 06:12 AM PDT     Sunrise
Fri -- 09:33 AM PDT     -1.26 feet Low Tide
Fri -- 04:46 PM PDT     13.41 feet High Tide
Fri -- 06:11 PM PDT     Moonset
Fri -- 08:16 PM PDT     Sunset
Fri -- 10:06 PM PDT     6.79 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1112.613.312.711.28.9630.4-1-1.10.32.86.19.211.713.113.412.61197.46.87.3

Tide / Current Tables for Pickering Passage, North, Washington Current
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Pickering Passage
Click for Map
Fri -- 12:34 AM PDT     0.43 knots Max Flood
Fri -- 02:39 AM PDT     Moonrise
Fri -- 03:14 AM PDT     -0.01 knots Slack
Fri -- 06:12 AM PDT     Sunrise
Fri -- 07:24 AM PDT     -0.74 knots Max Ebb
Fri -- 10:58 AM PDT     0.00 knots Slack
Fri -- 01:40 PM PDT     0.83 knots Max Flood
Fri -- 05:52 PM PDT     -0.01 knots Slack
Fri -- 06:12 PM PDT     Moonset
Fri -- 08:16 PM PDT     Sunset
Fri -- 09:12 PM PDT     -0.39 knots Max Ebb
Fri -- 11:38 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.40.30.1-0.2-0.4-0.6-0.7-0.7-0.6-0.400.50.80.80.70.50.2-0-0.2-0.3-0.4-0.4-0.2

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 (2,6,7,8)
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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.