Friday, February15, 2019 L-36.com


Marine Weather and Tides
Manchester, 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 5:34PM Friday February 15, 2019 11:11 AM PST (19:11 UTC) Moonrise 1:05PMMoonset 4:03AM Illumination 85% 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- 910 Am Pst Fri Feb 15 2019
.small craft advisory in effect until 4 pm pst this afternoon...
Today..S wind 10 to 25 kt becoming 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. A chance of showers.
Tonight..SW wind 5 to 15 kt becoming variable after midnight. Wind waves 2 ft or less. A chance of showers in the evening then a slight chance of showers after midnight.
Sat..NW wind to 10 kt becoming S in the afternoon. Wind waves 1 ft or less. A chance of showers.
Sat night..SE wind to 10 kt becoming variable after midnight. Wind waves 1 ft or less.
Sun..Variable wind to 10 kt becoming N 15 to 25 kt in the afternoon. Wind waves 1 ft or less building to 2 to 4 ft in the afternoon.
Sun night..N wind 15 to 25 kt easing to 10 kt after midnight. Wind waves 2 to 4 ft subsiding to 1 ft or less after midnight.
Mon..NE wind to 10 kt becoming s. Wind waves 1 ft or less.
Tue..S wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 910 Am Pst Fri Feb 15 2019
Synopsis for the northern and central washington coastal and inland waters..A surface low off astoria will weaken today, then shift inland over oregon and southwest washington tonight and Saturday. The low will drift south Saturday night as higher pressure builds over british columbia. Fraser outflow winds will develop over the north interior Sunday with breezy northerly or offshore winds.


7 Day Forecast for Marine Location Near Manchester, WA
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location: 47.57, -122.53     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 151741
afdsew
area forecast discussion
national weather service seattle wa
941 am pst Fri feb 15 2019

Synopsis An upper trough will keep cool and showery weather
over western washington today with activity decreasing on Saturday.

High pressure aloft will bring mostly dry weather Sunday into
Monday. A more active weather pattern is expected for much of next
week possibly bringing a return of wintry conditions.

Short term today through Sunday The langley hill radar went
down (currently being investigated) early this morning. But other
radars in the area along with satellite imagery show scattered
showers across the region, especially from the southern interior
into northwestern oregon. These showers are rotating around a
vertically stacked low centered over the northern oregon offshore
waters. Short term models rotate the upper low eastward into
oregon tonight into Saturday while developing a new, but weaker
center off vancouver island. The weaker low will drop south off
the coast as high pressure strengthens over the interior of
british columbia later Saturday and Saturday night.

Scattered showers are expected to slowly decrease through tonight
as the low off of oregon moves eastward. Then a few showers can be
expected Saturday into Saturday night around the new low feature
as it moves by to the west of the area. A few rain or mixed rain
and snow showers are possible later Saturday night as the low
moves to the southwest of the area and cool fraser outflow
develops a weak boundary across the interior then pushes south. As
temperatures fall back to below freezing Sunday morning, we cloud
see some black ice on area roadways and snowmelt refreezes.

Mainly dry, but cool, conditions can be expected on Sunday with
isolated snow showers limited to the cascades.

Minor updates were made to refine cloud cover and QPF values
through Sunday morning. Otherwise, short term forecasts are in
good shape this morning. Albrecht

Long term Monday through Thursday From the 335 am pst long
term discussion: now for the bad news. Unfortunately... It does
not look like snow levels lift all that much for the majority of
next week... With the exception of Wednesday and even then snow
levels above 1000 feet have a hard time making it any further than
the seattle metro area. Tuesday looks like it will be a bit of a
transition day... With a very weak shortwave trough clipping the
area very early in the morning... Then a bit of a lull in the
afternoon before the next system plunges into the area by early
evening... Joined by an upper level trough by Wednesday morning.

Precip here might start off as rain for the southern third of the
cwa... But will likely be a mix of snow and rain for the remainder
of the area into Wednesday afternoon and evening where enough
daytime heating should allow for a transition back to rain.

Thursday will offer a bit of a break in the activity with a dirty
ridge over the area before yet another frontal system moves in for
Friday... Offering yet another chance for mixed precip. So... There
does not appear to be any end to the suffering just yet. Smr

Aviation Winds aloft will generally be southerly through this
afternoon as an area of low pressure approaches the central oregon
coast today. This will also keep the atmosphere relatively moist.

Expect light rain at times with precipitation becoming more spotty
during the afternoon. Ceilings will continue to fluctuate between
vfr MVFR through much of the period. Localized ifr CIGS cannot be
ruled out, especially during the morning hours. Expect southerly sfc
winds to continue through the remainder of the TAF cycle. Sustained
wind speeds will range from 5-15 knots.

Ksea...VFR conditions this morning with spotty showers through the
afternoon hours. CIGS may drop down to MVFR overnight into Saturday.

Winds generally S SW under 10 kts. Ceo

Marine A surface low offshore will gradually fill today
and drift inland over SW washington and oregon tonight. Southerly
small craft winds will prevail today, then ease over the inland
waters tonight and Saturday. Large swell around 16 or 17 feet at 16
seconds will reach the coastal waters today, and remain above 10
feet through Saturday. Hazardous seas will likely continue over the
coastal waters after winds ease. Weak low pressure will drift south
Saturday night, ushering in gale force fraser outflow winds across
the northern inland waters Sunday. Ceo

Hydrology Precipitation that falls through Saturday night will
mainly be in the form of rain, or a rain snow mix. The
precipitation, combined with all the snow on the ground that will
be melting over the same period, will result in some ponding
water on roadways and yards, especially with snow and ice
plugging storm drains. In addition, melting snow is efficient at
saturating the ground and is increasing the threat of landslides
more than the rainfall-based indices would suggest.

As far as river flooding, none is expected for the next 7 days,
though chehalis river at porter will rise to less than 2 feet below
flood stage.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 4 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-west entrance u.S. Waters strait of
juan de fuca.

Small craft advisory for rough bar until 4 pm pst Saturday for
grays harbor bar.

Small craft advisory until 4 pm pst this afternoon for admiralty
inlet-east entrance u.S. Waters strait of juan de fuca-
northern inland waters including the san juan islands-puget
sound and hood canal.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 8 mi71 min S 17 G 19 44°F 1002.3 hPa (+2.9)37°F
46120 15 mi52 min NE 7.8 44°F 1001.5 hPa38°F
TCMW1 - 9446482 - Tacoma Met, WA 21 mi59 min S 6 G 13
TCNW1 - 9446484 - Tacoma, WA 22 mi59 min 48°F 48°F1002.9 hPa
46121 23 mi56 min 44°F 1002.5 hPa38°F
PTWW1 - 9444900 - Port Townsend, WA 39 mi59 min SE 15 G 21 43°F 46°F1001.9 hPa

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boeing Field - King County International Airport, WA12 mi78 minSSE 410.00 miOvercast40°F34°F79%1002.3 hPa
Bremerton, Bremerton National Airport, WA14 mi75 minSSW 910.00 miLight Rain38°F36°F93%1003.9 hPa
Seattle, Seattle-Tacoma International Airport, WA15 mi78 minSSW 510.00 miMostly Cloudy43°F35°F74%1002.7 hPa
Renton Municipal Airport, WA17 mi78 minN 010.00 miMostly Cloudy42°F36°F79%1002.9 hPa
Tacoma, Tacoma Narrows Airport, WA21 mi78 minS 11 G 2010.00 miMostly Cloudy42°F35°F76%1002.3 hPa

Wind History from BFI (wind in knots)
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Last 24hrNW5NW7NW6CalmCalmNW3CalmS8S12S9SE5CalmS3CalmCalmCalmCalmSE3SE4SE6SE4SE5SE4SW9
G15
1 day agoN5N4N5N3NE5N3N4N4N4N3CalmNW3CalmW4CalmCalmCalmNW3CalmCalmN3CalmNW6Calm
2 days agoSE7SE8SE8S8S9S8
G17
S8SE3SE5SE6SE7SE5S3E3SE4SE4SE6SE6S4CalmCalmCalmCalmCalm

Tide / Current Tables for Clam Bay, Rich Passage, Washington
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Clam Bay
Click for Map
Fri -- 02:22 AM PST     10.26 feet High Tide
Fri -- 04:02 AM PST     Moonset
Fri -- 07:01 AM PST     7.85 feet Low Tide
Fri -- 07:15 AM PST     Sunrise
Fri -- 11:56 AM PST     10.69 feet High Tide
Fri -- 01:05 PM PST     Moonrise
Fri -- 05:33 PM PST     Sunset
Fri -- 07:36 PM PST     -0.59 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.69.710.210.29.68.98.17.88.18.89.610.410.710.297.25.12.80.8-0.4-0.50.52.34.7

Tide / Current Tables for Rich Passage, West end, Washington Current
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Rich Passage
Click for Map
Fri -- 02:54 AM PST     -0.00 knots Slack
Fri -- 04:02 AM PST     Moonset
Fri -- 05:23 AM PST     -1.57 knots Max Ebb
Fri -- 07:15 AM PST     Sunrise
Fri -- 07:42 AM PST     0.00 knots Slack
Fri -- 09:59 AM PST     0.67 knots Max Flood
Fri -- 12:27 PM PST     -0.00 knots Slack
Fri -- 01:05 PM PST     Moonrise
Fri -- 04:56 PM PST     -3.83 knots Max Ebb
Fri -- 05:33 PM PST     Sunset
Fri -- 07:47 PM PST     0.00 knots Slack
Fri -- 11:34 PM PST     3.45 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.41.70.8-0.1-1-1.5-1.4-0.60.20.50.70.60.2-0.5-1.5-2.7-3.5-3.8-3.2-1.60.31.72.83.4

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Seattle, WA (14,3,4,5)
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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.