Sunday, June17, 2018 L-36.com


Marine Weather and Tides
Keyport, 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 5:10AMSunset 9:13PM Sunday June 17, 2018 8:57 PM PDT (03:57 UTC) Moonrise 8:48AMMoonset 11:34PM Illumination 22% 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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PZZ135 Puget Sound And Hood Canal- 849 Pm Pdt Sun Jun 17 2018
Tonight..N wind 10 to 20 kt becoming ne to 10 kt after midnight. Wind waves 1 to 3 ft.
Mon..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less.
Mon night..Variable wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Tue..SW wind to 10 kt. Wind waves 1 ft or less.
Tue night..NW wind 5 to 15 kt becoming sw after midnight. Wind waves 2 ft or less.
Wed..SW wind 5 to 15 kt. Wind waves 2 ft or less.
Wed night..NW wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Thu..S wind 5 to 15 kt. Wind waves 2 ft or less.
Fri..SW wind 10 to 20 kt. Wind waves 1 to 3 ft.
PZZ100 849 Pm Pdt Sun Jun 17 2018
Synopsis for the northern and central washington coastal and inland waters..Northerly flow will become weakly onshore or southerly by Monday night. Generally weak onshore flow will prevail Tuesday and Wednesday. Westerly flow will strengthen on Thursday for the potential of gale force winds over parts of the strait of juan de fuca.

7 Day Forecast for Marine Location Near Keyport CDP, WA
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location: 47.7, -122.63     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 172229
afdsew
area forecast discussion
national weather service seattle wa
329 pm pdt Sun jun 17 2018

Synopsis An upper level ridge will build offshore with an upper
level low remaining well east of the area through Monday. The
upper level ridge will shift inland on Tuesday then shift east
later Wednesday. High temperatures will be well above normal
through Wednesday. A weak upper level trough will move through the
area on Thursday inducing a push of marine air into the interior,
cooling highs back down to near normal. A weaker upper level ridge
will build into the area next weekend.

Short term A few cells have developed over the central and
southern cascades, drifting sw, with isolated thunderstorms
possible this evening. These cells will diminish after sunset
tonight.

A strong upper level ridge will continue to build offshore
through Monday for dry, northerly flow over western washington.

Expect plenty of sunshine with above normal temperatures. Highs
will be mostly in the low to mid 80s with 70s near the water.

Overnight lows will be around 55-60. Some mid level moisture from
a low over id may clip the central and southern cascades for a
chance of showers and thunderstorms Monday afternoon evening, but
confidence is low.

The GFS is showing an onshore push Monday night which may bring
low level stratus clouds into the interior Tuesday morning. The
stratus deck will be shallow and will burn back to the coast
Tuesday afternoon. A few showers may develop over the mountains
where heating and instability is the greatest. Isolated
thunderstorms are possible, especially in the cascades.

Wednesday will be the warmest day of the stretch as the trough
axis moves inland. Temperatures in the interior will reach the mid
to upper 80s with a few low 90s possible, close to daily records.

Expect cooler conditions along the coast with onshore flow.

Isolated thunderstorms are a possibility again in the cascades. 33

Long term An strong onshore push will develop Wednesday night
and Thursday, bringing cooler marine air inland. This will knock
temperatures down into the mid 60s to 70s. There is a chance of
showers Thursday afternoon, mainly across the northern half of
the CWA with a passing trough. We may also see showers in the
north sound with a puget sound convergence zone. An upper level
ridge will cross the area Friday and Saturday for more dry
weather. Temperatures will be close to normal with onshore flow. A
dry cold front may cross the region next Sunday for increasing
onshore flow. 33

Aviation Wrn wa will lie between an upper level ridge centered
offshore and an upper level low over the great basin thru tonight.

This will keep the flow aloft nly. The air mass will be slightly
unstable thru this evening for a risk of isold tstms over the
central cascades. The low level flow will remain nly. There will
be patchy fog (vsbys 4-6sm) on the coast late tonight; otherwise,
expectVFR conditions.

Ksea...VFR. Northerly winds of 10-15 knots will become light and
variable. Winds tomorrow will be lighter and more westerly.

Marine Northerly flow will become onshore or southerly Monday
afternoon and then briefly strengthen Monday night. The
combination of a near +3.0 mb pressure gradient across the strait
of juan de fuca and about a 15-degree difference in temperatures
between the coast and the interior may be enough to cause a brief
period of gale force westerlies over the central strait of juan de
fuca Monday evening. Therefore, a gale watch was issued for this
area.

Anticipate generally weak onshore flow Tuesday and Wednesday.

Westerly or onshore flow will strengthen Thursday for a higher
threat of gale force winds over parts of the strait of juan de
fuca.

Sew watches warnings advisories
Wa... None.

Pz... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 11 mi57 min N 6 G 7 67°F 1010.7 hPa (-0.0)49°F
46120 13 mi41 min NNW 9.7 71°F 1009.8 hPa53°F
46125 14 mi41 min 9.7 62°F 1009.7 hPa49°F
EBSW1 - 9447130 - Seattle, WA 17 mi39 min NW 4.1 G 8 74°F 52°F1010.7 hPa
PTWW1 - 9444900 - Port Townsend, WA 29 mi39 min WSW 2.9 G 6 53°F1011.3 hPa
46121 30 mi88 min 77°F 1010.3 hPa53°F
TCMW1 - 9446482 - Tacoma Met, WA 31 mi39 min W 7 G 7
TCNW1 - 9446484 - Tacoma, WA 32 mi39 min 53°F1010.8 hPa
SISW1 - Smith Island, WA 44 mi67 min WSW 6 G 9.9 62°F 1011 hPa (-0.6)50°F

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bremerton, Bremerton National Airport, WA17 mi61 minNE 610.00 miFair82°F43°F25%1012 hPa
Boeing Field - King County International Airport, WA21 mi64 minVar 310.00 miPartly Cloudy84°F41°F22%1010.4 hPa
Everett Snohomish County, WA24 mi64 minNW 410.00 miFair75°F51°F43%1011.1 hPa

Wind History from PWT (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3NE8E8NE86NE96NE10
G16
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1 day agoE3CalmCalmSE3CalmCalmCalmCalmSW3CalmCalmCalm56NE8NE8NE9
G14
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G15
NE8NE9NE7E8E5
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm4CalmN5Calm4CalmNE5NE4NE5NE3E3E3

Tide / Current Tables for Poulsbo, Liberty Bay, Washington
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Poulsbo
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Sun -- 02:30 AM PDT     6.39 feet Low Tide
Sun -- 05:11 AM PDT     Sunrise
Sun -- 07:20 AM PDT     10.56 feet High Tide
Sun -- 09:48 AM PDT     Moonrise
Sun -- 02:21 PM PDT     -2.31 feet Low Tide
Sun -- 09:11 PM PDT     Sunset
Sun -- 09:51 PM PDT     13.22 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
9.47.66.56.57.38.69.810.510.39.174.41.5-0.9-2.2-2-0.42.35.58.711.312.813.212.5

Tide / Current Tables for West Point, Seattle, 0.3 miles W of, Washington Current
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West Point
Click for Map
Sun -- 03:11 AM PDT     0.00 knots Slack
Sun -- 04:58 AM PDT     0.31 knots Max Flood
Sun -- 05:11 AM PDT     Sunrise
Sun -- 07:08 AM PDT     -0.00 knots Slack
Sun -- 09:48 AM PDT     Moonrise
Sun -- 10:53 AM PDT     -1.07 knots Max Ebb
Sun -- 02:31 PM PDT     0.01 knots Slack
Sun -- 05:50 PM PDT     1.27 knots Max Flood
Sun -- 09:11 PM PDT     Sunset
Sun -- 09:43 PM PDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-0.6-0.3-00.20.30.20-0.3-0.7-1-1.1-1-0.7-0.20.30.81.21.31.10.80.3-0.1-0.6

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 (23,6,7,8)
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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.