Friday, January18, 2019 L-36.com


Marine Weather and Tides
Lake Stevens, 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 7:49AMSunset 4:48PM Friday January 18, 2019 2:01 PM PST (22:01 UTC) Moonrise 2:23PMMoonset 5:15AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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- 850 Am Pst Fri Jan 18 2019
.small craft advisory in effect through Saturday afternoon...
Today..S wind 15 to 25 kt. Wind waves 2 to 4 ft. A chance of showers in the morning then rain in the afternoon.
Tonight..SE wind 10 to 20 kt becoming S 20 to 30 kt after midnight. Wind waves 1 to 3 ft building to 3 to 5 ft after midnight. Rain.
Sat..SW wind 20 to 30 kt easing to 15 to 25 kt in the afternoon. Wind waves 3 to 5 ft. A slight chance of showers.
Sat night..SW wind 10 to 20 kt easing to 10 kt after midnight. Wind waves 1 to 3 ft subsiding to 1 ft or less after midnight.
Sun..N wind 5 to 15 kt. Wind waves 2 ft or less.
Sun night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Mon..SW wind 5 to 15 kt becoming s. Wind waves 2 ft or less.
Tue..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
PZZ100 850 Am Pst Fri Jan 18 2019
Synopsis for the northern and central washington coastal and inland waters..Low pressure well off the northern california coast will move ne toward washington late tonight and into Saturday. The strong front associated with this low will lift ne across the waters tonight. Strong onshore flow behind the front on Saturday will weaken Saturday night. Weak high pressure will move across the waters Sunday and Monday. A weaker frontal system will affect the waters on Tuesday.


7 Day Forecast for Marine Location Near Lake Stevens, WA
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location: 48, -122.09     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 181736
afdsew
area forecast discussion
national weather service seattle wa
935 am pst Fri jan 18 2019

Synopsis A vigorous storm system will affect the area this
afternoon into Saturday morning with breezy winds and moderate
rainfall expected. Conditions will improve during the day Saturday
with generally dry conditions expected Sunday and Monday. Active
weather will return Tuesday into Wednesday, followed by a shift
to a dry, benign pattern later in the week.

Short term Scattered showers across western washington this
morning have diminished somewhat ahead of a an approaching system
over the eastern pacific. This system is expected to deepen rapidly
into a closed low this afternoon evening helping bring a swath of
deep moisture into the washington coast and another round of
moderate rainfall late this afternoon through Saturday morning.

Expected QPF with this system will range from a half inch over the
lowlands to 1-2 inches across the cascades and 3 to 4.5 inches over
the olympics. The heavier accumulations will result in possible
flooding on the skokomish river - a flood watch remains in effect
for mason county through late Saturday night. Snow levels today
around 3500 feet are expected to rise rather significantly to 4000-
6000ft, or higher overnight as the warm pacific air mass moves
inland. While several additional inches of snow are certainly
possible over the mountains - the rapidly rising snow levels will
likely mitigate significant snow accumulations as precipitation
changes to rain at all but the highest elevations.

This storm system will also bring another period of enhanced winds
to the area, especially the coast and northern parts of the
interior. Winds continue to look to be a bit stronger than
Thursday's system, but still within advisory ranges - 20 to 35 mph
with gusts to 45 mph along the coast and through the interior from
admiralty inlet northward. Areas across puget sound could experience
gusts to 40 mph - windy, but just under advisory criteria.

This system continues to look very progressive - as the offshore low
moves well inland of central bc Saturday, rain and winds will
decrease pretty quickly Saturday morning. Accordingly much of the
weather impacts associated with this system will diminish Saturday
morning. Snow levels do come back down to 3000-3500 feet Saturday
afternoon, but so does the threat of significant precipitation by
this time. The only likely threat that will be lingering may be the
hydrologic impacts to the skokomish river.

Long term From previous discussion... Aforementioned trough on
Sunday will continue to venture inland inland across the western
states with western washington is looking to remain dry through
Monday as a broader scale ridge tries to build in from the pacific.

There still seems to be a lot of moisture being pulled overtop of
the ridge as several perturbations traverse the flow to its north.

What would usually signify a break in the weather actually looks to
hold the next round of rain. This looks to begin sometime Tuesday
and continue through Wednesday. Ridge is finally able to build in
better by Thursday as a deep trough develops across the eastern us.

This still looks to make for a dry tho likely foggy forecast thru
the end of next week.

Kovacik

Aviation Westerly flow aloft becoming southwesterly tonight.

Low level onshore flow currently transitioning to offshore and will
continue through tonight as another frontal system moves into the
area.

Cigs generallyVFR to MVFR over W wa this morning although a couple
of exceptions... Most notably clm where conditions are ifr due to
visibility. WidespreadVFR conditions expected by around noon or a
little after as low level offshore flow will scour out low level
clouds. As showers approach with incoming system tonight... Will
expect to see CIGS lower to borderlineVFR MVFR conditions.

Ksea... Ceilings 2000-3000 feet improving to around 5000 feet by 18z.

Ceilings remaining in the 5000-6000 foot range through the evening
hours with light rain beginning late afternoon. Southerly wind 7-12
knots for the remainder of the morning before becoming southeasterly
5-10 knots in the afternoon. Smr felton

Marine An approaching low pressure system and associated front
will move from its current position out over the pacific toward the
canadian coast. The strong front associated with this low will pass
through area waters tonight. Gale warnings remain in effect for the
coastal waters, the eastern two-thirds of the strait of juan de
fuca, admiralty inlet, and the northern inland waters. Small craft
advisories have been issued for puget sound and hood canal and for
the west entrance to the strait.

Another matter of concern associated with the passing of this front
is that some locations along the shorelines of the northern inland
waters, specifically the coastline of western whatcom county around
sandy point and birch bay could see some coastal flooding around the
two high tides on Saturday. Tides and tidal anomalies stay just
below the level that usually produces flooding during calm
conditions, but strong southwest winds over the strait of georgia
from about the san juan islands to the shores of bellingham bay may
result in 4-6 ft waves that would crash onto and over seawalls and
other protective coastal structures around the high tides. These
areas had already seen flooding and damage from waves on two
previous occasions this winter, and this system has the potential to
exacerbate the problems. A coastal flood watch has been issued for
western whatcom county on Saturday.

The weather will be considerably calmer Sunday and Monday, with
another system possibly arriving Tuesday. Albrecht smr

Hydrology The next frontal system will bring rain to the area
late this afternoon through the first part of Saturday. Rain should
be heavier in the olympics than elsewhere. There is a flood watch
for mason county--which probably says more about the ease with which
the skokomish river gets up to flood stage than anything else.

Sew watches warnings advisories
Wa... Flood watch from 5 pm pst this afternoon through late Saturday
night for hood canal area-lower chehalis valley area-
olympics.

Wind advisory from 6 pm this evening to 6 am pst Saturday for
admiralty inlet area-eastern strait of juan de fuca-san
juan county-western skagit county-western whatcom county.

Coastal flood watch from late tonight through Saturday afternoon
for western whatcom county.

Wind advisory from 2 pm this afternoon to 6 am pst Saturday for
central coast-north coast.

Pz... Small craft advisory for rough bar until 6 pm pst Saturday for
grays harbor bar.

Small craft advisory until noon pst today 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.

Gale warning until 6 am pst Saturday 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.

Small craft advisory until 1 pm pst this afternoon for east
entrance u.S. Waters strait of juan de fuca.

Gale warning from 1 pm this afternoon to 6 am pst Saturday for
east entrance u.S. Waters strait of juan de fuca.

Small craft advisory until 6 pm pst this evening for admiralty
inlet-northern inland waters including the san juan islands.

Gale warning from 6 pm this evening to 6 am pst Saturday for
admiralty inlet-northern inland waters including the san
juan islands.

Small craft advisory until 3 am pst Sunday for west entrance
u.S. Waters strait of juan de fuca.

Gale warning until 2 am pst Saturday for central u.S. Waters
strait of juan de fuca.

Small craft advisory until 6 pm pst Saturday for puget sound and
hood canal.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46120 23 mi39 min NE 3.9 51°F 1017.1 hPa40°F
46125 29 mi41 min 9.7 48°F 1017.1 hPa42°F
WPOW1 - West Point, WA 30 mi62 min S 7 G 8 49°F 1018.4 hPa (-1.6)43°F
PTWW1 - 9444900 - Port Townsend, WA 36 mi32 min E 18 G 24 48°F 48°F1017.6 hPa
PBFW1 - Padilla Bay Reserve, WA 38 mi92 min S 15 50°F 1018 hPa41°F
SISW1 - Smith Island, WA 45 mi72 min SSE 22 G 26 48°F 1016.7 hPa (-1.2)41°F

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Everett Snohomish County, WA12 mi69 minESE 610.00 miPartly Cloudy50°F37°F61%1018.5 hPa
Arlington Municipal Airport, WA12 mi66 minSE 1210.00 miMostly Cloudy51°F39°F64%1019.1 hPa

Wind History from AWO (wind in knots)
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Last 24hrCalmW3E9E12SE14SE15
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1 day agoN5SW3CalmCalmN4--N3CalmCalmE3CalmN3N3CalmNE5W3CalmCalm--CalmE3CalmS33
2 days agoCalmCalmNW3N3CalmCalmCalmNE3CalmN4--CalmN4CalmCalmCalmN4CalmCalmCalmCalmCalmCalmN4

Tide / Current Tables for Everett, Washington
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Everett
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Fri -- 03:41 AM PST     10.64 feet High Tide
Fri -- 05:15 AM PST     Moonset
Fri -- 07:51 AM PST     Sunrise
Fri -- 08:21 AM PST     7.77 feet Low Tide
Fri -- 01:17 PM PST     11.03 feet High Tide
Fri -- 02:24 PM PST     Moonrise
Fri -- 04:47 PM PST     Sunset
Fri -- 08:49 PM PST     -1.56 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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68.19.710.510.610.19.38.47.87.98.59.510.41110.89.77.95.52.90.5-1.1-1.5-0.71.2

Tide / Current Tables for President Point, 1.5 mile E of, Washington Current
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President Point
Click for MapFlood direction 203 true
Ebb direction 24 true

Fri -- 03:37 AM PST     -0.00 knots Slack
Fri -- 05:15 AM PST     Moonset
Fri -- 05:45 AM PST     -0.31 knots Max Ebb
Fri -- 07:51 AM PST     Sunrise
Fri -- 09:41 AM PST     0.00 knots Slack
Fri -- 10:55 AM PST     0.13 knots Max Flood
Fri -- 01:16 PM PST     -0.00 knots Slack
Fri -- 02:26 PM PST     Moonrise
Fri -- 04:48 PM PST     Sunset
Fri -- 05:14 PM PST     -0.73 knots Max Ebb
Fri -- 09:46 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.40.30.1-0.1-0.3-0.3-0.3-0.2-0.10.10.10.10-0.2-0.4-0.6-0.7-0.7-0.6-0.4-0.20.10.4

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 (17,4,5,8)
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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.