Thursday, November15, 2018 L-36.com


Marine Weather and Tides
Snoqualmie, 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 7:13AMSunset 4:32PM Thursday November 15, 2018 12:36 PM PST (20:36 UTC) Moonrise 1:34PMMoonset 11:42PM Illumination 53% Phase: First Quarter Moon; Moon at 8 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- 840 Am Pst Thu Nov 15 2018
Today..S wind to 10 kt becoming 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Tonight..S wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft. A slight chance of rain in the evening then a chance of rain after midnight.
Fri..S wind to 10 kt becoming N in the afternoon. Wind waves 1 ft or less. A chance of showers in the morning then a slight chance of showers in the afternoon.
Fri night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..N wind 5 to 15 kt in the morning becoming light. Wind waves 2 ft or less.
Sat night..N wind to 10 kt becoming 5 to 15 kt after midnight. Wind waves 2 ft or less.
Sun..NE wind to 10 kt becoming light. Wind waves 1 ft or less.
Mon..Light wind. Wind waves less than 1 ft.
PZZ100 840 Am Pst Thu Nov 15 2018
Synopsis for the northern and central washington coastal and inland waters..Building seas can be expected across the coastal waters today. Winds will also increase across portions of the inland waters and eventually the strait of juan de fuca as the next system moves into the area this evening. In wake of this system, offshore flow will return Friday and the weekend.


7 Day Forecast for Marine Location Near Snoqualmie, WA
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location: 47.53, -121.84     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 151753
afdsew
area forecast discussion
national weather service seattle wa
953 am pst Thu nov 15 2018

Update Quick update this morning to increase pops
over the san juans and decrease pops across west central wa through
mid-day. Otherwise the forecast is on track and no significant
changes are needed at this time. -wolcott-

Synopsis Today will be mostly dry with Sun breaks. A weak weather
system will affect mainly northern washington and the mountains
tonight and Friday morning. A sharp upper level ridge will give dry
conditions and patchy night and morning fog this weekend. A front
may approach the region early next week with a chance of rain.

Short term Showers from the weak weather system yesterday have
now entirely ended. Today will be mostly in between weather systems,
with some Sun breaks or partly sunny conditions. Rain from the next
weak weather system will begin to develop in the afternoon in the
far north. Highs today will be in the low to mid 50s.

This weather system will move from north to south tonight and
Friday. It looks strong enough for likely or better pops over the
north and in the mountains, but it appears to lose punch as it moves
south. There is a wide swath of territory over the southern half of
the state with only chance pops. The system will be dissipating as
it exits to the southeast Friday afternoon, and Friday night should
be dry. Skies will clear from north to south Friday night. Highs on
Friday will be in the low to mid 50s, but overnight lows will fall
into the 30s in many places, perhaps touching the freezing mark in
the far north.

As an upper level ridge sharpens offshore, Saturday will be sunny
except for some morning fog. Highs will be only in the low 50s in
cool northerly flow. Saturday night will be cool, with widespread
lows below freezing away from the water and the urban core. Near the
water and in the cities, the lows will still be in the low to mid
30s. Burke

Long term The upper level ridge will move slowly over washington
on Sunday, and its effects will still be felt on Monday. Sunday will
be mostly sunny with patchy fog, with highs not quite 50. Sunday
night will be another cool one, with lows in the 30s. Have not
changed the extended forecast much, which is mostly dry on Monday
and has chance pops Tuesday and Wednesday. The recent trend in
models is toward drier conditions, with the euro waiting until
Wednesday to bring the next system, and the GFS waiting all the way
until next Friday. Temperatures are likely to be near normal through
the period. Burke

Aviation The air mass across western wa is moist and stable.

Showers from a weak weather system will mainly affect areas near the
canadian border today, then spread south tonight. The flow aloft is
westerly. Ceilings are a mixed bag this morning with pockets of MVFR
to ifr. We should see brief improvement this afternoon, then a
return of MVFR conditions tonight. Low clouds will linger into
Friday morning then eventually scour out Friday afternoon and
evening as offshore flow increases. 33
ksea... Ceilings near 3000 ft this morning with some improvement this
afternoon. MVFR CIGS will return this evening with -ra in the
vicinity. S winds to 10 kt at the surface. 33

Marine A small craft advisory for hazardous seas is in effect
today for the coastal waters and west entrance as seas will build to
10 ft. Seas will subside late tonight. Meanwhile, south winds will
also increase over the northern inland water as a frontal systems
clips the region. The strait of juan de fuca will see a brief
westerly push tonight - small craft advisories are in effect. The
flow will turn offshore on Friday and persist through the weekend
with high pressure building east of the cascades. 33

Hydrology River flooding is unlikely through the next 7 days.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory for hazardous seas until 10 pm pst this
evening 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-
west entrance u.S. Waters strait of juan de fuca.

Small craft advisory from 7 pm this evening to 4 am pst Friday
for central u.S. Waters strait of juan de fuca-east
entrance u.S. Waters strait of juan de fuca.

Small craft advisory until 4 am pst Friday for northern inland
waters including the san juan islands.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EBSW1 - 9447130 - Seattle, WA 27 mi37 min W 4.1 G 5.1 54°F 53°F1026.3 hPa (-1.3)
WPOW1 - West Point, WA 33 mi37 min S 8.9 G 8.9 52°F 1026.3 hPa (-1.3)48°F
46120 34 mi30 min NE 3.9 52°F 1025.1 hPa48°F
TCMW1 - 9446482 - Tacoma Met, WA 35 mi37 min NNE 2.9 G 2.9
TCNW1 - 9446484 - Tacoma, WA 35 mi37 min 55°F 53°F1026.6 hPa (-1.4)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Renton Municipal Airport, WA20 mi44 minSSE 510.00 miMostly Cloudy57°F45°F64%1026.7 hPa
Boeing Field - King County International Airport, WA24 mi44 minSW 510.00 miMostly Cloudy55°F45°F69%1026.3 hPa

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Last 24hrS9S9CalmSW4W4S3CalmSE4S5S7S5S4S4CalmCalmSE3CalmSE4SE3S4S3S5S5S5
1 day agoSE4S6S6S6CalmE3SE4SE3SE4SE5SE3S33S6S6S4S5CalmCalmCalmSE5SE4SE9S13
G21
2 days agoNW5SE76CalmSE44SW5S33SE4E3SE45E3SE3SE7SE3E6SE4SE6E3SE6S4S4

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
Click for Map
Thu -- 03:54 AM PST     1.73 feet Low Tide
Thu -- 06:54 AM PST     First Quarter
Thu -- 07:14 AM PST     Sunrise
Thu -- 11:27 AM PST     10.91 feet High Tide
Thu -- 01:35 PM PST     Moonrise
Thu -- 04:32 PM PST     Sunset
Thu -- 06:11 PM PST     5.66 feet Low Tide
Thu -- 10:15 PM PST     7.15 feet High Tide
Thu -- 11:44 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.54.2321.72.23.45.178.810.210.810.810.29.27.86.75.95.75.86.26.87.17

Tide / Current Tables for Seattle, Washington
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Seattle
Click for Map
Thu -- 03:43 AM PST     1.82 feet Low Tide
Thu -- 06:54 AM PST     First Quarter
Thu -- 07:14 AM PST     Sunrise
Thu -- 11:26 AM PST     11.25 feet High Tide
Thu -- 01:36 PM PST     Moonrise
Thu -- 04:32 PM PST     Sunset
Thu -- 06:00 PM PST     5.96 feet Low Tide
Thu -- 10:14 PM PST     7.37 feet High Tide
Thu -- 11:44 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.54.22.921.92.53.85.57.49.210.511.211.210.59.486.96.266.16.67.17.47.2

Weather Map and Satellite Images
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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 (15,3,4,5)
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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.