Tuesday, May23, 2017 L-36.com


Marine Weather and Tides
Cliffdell, WA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:15AMSunset 8:42PM Monday May 22, 2017 10:05 PM PDT (05:05 UTC) Moonrise 2:53AMMoonset 3:51PM Illumination 7% Phase: Waning Crescent; Moon at 27 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 Mon May 22 2017
Tonight..NE wind 5 to 15 kt. Wind waves 2 ft or less.
Tue..N wind to 10 kt rising to 10 to 20 kt in the afternoon. Wind waves 1 ft or less building to 1 to 3 ft in the afternoon.
Tue night..NW wind 15 to 25 kt easing to 10 to 20 kt after midnight. Wind waves 2 to 4 ft. A slight chance of showers.
Wed..SW wind to 10 kt becoming variable in the afternoon. Wind waves 1 ft or less.
Wed night..NW wind to 10 kt becoming N after midnight. Wind waves 1 ft or less.
Thu..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less.
Thu night..N wind to 10 kt. Wind waves 1 ft or less.
Fri..NE wind to 10 kt. Wind waves 1 ft or less.
Sat..N wind to 10 kt. Wind waves 1 ft or less.
PZZ100 900 Pm Pdt Mon May 22 2017
Synopsis for the northern and central washington coastal and inland waters..A surface ridge just offshore will maintain light to moderate onshore flow tonight. An approaching upper level trough will trigger a marine push on Tuesday with very strong onshore flow developing through the strait of juan de fuca. Gale force winds are expected in the strait. Onshore flow will weaken by Wednesday morning. The surface ridge will remain just offshore Wednesday through the rest of this week allowing weak to moderate onshore flow to continue.

7 Day Forecast for Marine Location Near Cliffdell, WA
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location: 46.92, -121.24     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 230330
afdpdt
area forecast discussion
national weather service pendleton or
830 pm pdt Mon may 22 2017

Update Its a very quiet evening with high pressure aloft and
sinking air allowing just a few high thin cirrus clouds and jet
contrails. The high pressure will persist through Tuesday and then a
cold front will move through the pacific northwest with a flattening
of the upper ridge. This will cause mainly just increasing pressure
gradients for increasing winds and cooler temperatures for
Wednesday. After that another wave will move down in a northwest
flow aloft with some increased moisture and instability for a slight
chance of showers and afternoon thunderstorms by Thursday and
Friday. Then high pressure aloft will return with dry conditions and
another warming trend next weekend. The warmest day this week will
be on Tuesday with maximum temperature readings mostly in the 80s in
the lower elevations and 70s in the mountains... Cooling to the 60s
to mid 70s in the lower elevations and 50s to lower 60s in the
mountains by Wednesday. 88

Aviation 06z...VFR conditions will prevail through the next 24
hours with mostly clear skies except for a few mid and high clouds.

Winds will be light through most of Tuesday and then will
increase... Especially in the gorge and the kittitas valley Tuesday
evening to the breezy/windy category ahead of the mid week cold
front. 88

Prev discussion /issued 226 pm pdt Mon may 22 2017/
short term... Tonight through Thursday... High pressure over the
region will continue into Tuesday but begin to flatten as a low
pressure system moves into western canada. A cold front will then
move across the region Tuesday night bringing cooler and windy
conditions that will persist into Wednesday. Precipitation threat
from this system looks minimal as the main moisture stays well to
the north. A cool northerly flow will continue behind the front on
Thursday but with a small shortwave expected to drop southward over
the region. This should generate enough instability to lead to some
showers and possible thunderstorms over portions of the forecast
area.

Long term... Thursday night through Monday... The extended
period will start off with a departing shortwave trough moving
across eastern or and into SW id Thursday night and Friday morning.

Wrap around moisture associated with this mid/upper level low will
keep conditions mostly cloudy with a chance of rain showers... Mainly
from the blue mountains south and east. The remainder of the
forecast area should dry out, under partly cloudy skies Thursday
night/Friday morning. Later in the day on Friday the forecast area
will be under a northerly flow pattern behind the departing low.

There could be just enough lingering moisture and instability for a
few thunderstorms to develop over the eastern mountains Friday
afternoon and evening. Much of the rest of the CWA is now looking
dry for Friday afternoon. Temperatures begin a warming trend on
Friday... Reaching the 70s to lower 80s for afternoon highs... Except
60s in the mountains. For the upcoming holiday weekend, the latest
model guidance has shifted the aforementioned trough out of the area
to the east faster than previous runs... With a building upper ridge
replacing it. For Saturday and Sunday, the 12z gfs, ECMWF and their
respective ensemble means are now in excellent agreement that the
cwa will see building heights and above normal temperatures. On
Sunday, the 12z GEFS and eps means showed a 580dm ridge centered on
our area with 2m temperature anomalies between +3 to +6c. 850mb
temperatures are forecast to push 20c by Sunday and next Monday over
the lower basin and foothills. This would translate to high
temperatures between 85 to 95 degrees in the lower elevations. The
official forecast high temperatures were nudged several degrees in
this direction. With the warmer, somewhat moist air-mass progged to
move into the area over the weekend the latest guidance is
indicating increasing atmospheric instability parameters. This is
especially true heading into Sunday and next Monday, as the CWA will
be under a southerly return flow once the ridge shifts east. The
models are also indicating the potential for a few weak waves to
move over the top of the ridge toward Sunday and Monday. All of
these factors will lead to a slight chance of thunderstorms in the
mountains later Sunday and especially next Monday afternoon/evening.

There is plenty of time to watch this thunderstorm potential and the
timing and locations of any thunderstorms is likely to shift as the
models resolve this weather pattern. 77

Preliminary point temps/pops
Pdt 56 88 52 67 / 0 0 0 0
alw 60 90 55 69 / 0 0 0 0
psc 55 94 55 74 / 0 0 0 0
ykm 57 92 52 73 / 0 0 0 0
hri 55 91 55 72 / 0 0 0 0
eln 55 87 50 65 / 0 0 0 0
rdm 48 89 44 70 / 0 0 0 0
lgd 50 84 49 65 / 0 0 0 10
gcd 51 88 48 68 / 0 0 0 0
dls 59 90 55 71 / 0 0 0 0

Pdt watches/warnings/advisories
Or... None.

Wa... None.

88/77/88


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCNW1 - 9446484 - Tacoma, WA 67 mi53 min 74°F 51°F1017.2 hPa
TCMW1 - 9446482 - Tacoma Met, WA 67 mi47 min NNW 6 G 8.9
EBSW1 - 9447130 - Seattle, WA 75 mi47 min Calm G 1.9 66°F 51°F1017.3 hPa

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA26 mi69 minSW 310.00 miFair62°F46°F58%1020.2 hPa

Wind History from SMP (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmE3E33Calm3----33Calm3CalmCalmW5SW3SW3
1 day agoSW5SW4SW5SW4SW4SW3CalmCalmCalm3CalmCalm3433--CalmCalmCalmW5W4SW3SW3
2 days ago4CalmW3W3W4W44W44SW6656454W74NW7NW653SW3--

Tide / Current Tables for Des Moines, Washington
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Des Moines
Click for Map
Tue -- 03:01 AM PDT     11.92 feet High Tide
Tue -- 04:29 AM PDT     Moonrise
Tue -- 05:23 AM PDT     Sunrise
Tue -- 10:00 AM PDT     0.01 feet Low Tide
Tue -- 04:33 PM PDT     10.40 feet High Tide
Tue -- 06:11 PM PDT     Moonset
Tue -- 08:49 PM PDT     Sunset
Tue -- 10:00 PM PDT     4.66 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.89.811.311.911.49.97.75.12.50.700.72.44.87.39.210.310.39.58.26.55.24.75.2

Tide / Current Tables for Tacoma, Commencement Bay, Sitcum Waterway, Puget Sound, Washington (sub)
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Tacoma
Click for Map
Tue -- 03:04 AM PDT     12.13 feet High Tide
Tue -- 04:29 AM PDT     Moonrise
Tue -- 05:24 AM PDT     Sunrise
Tue -- 09:52 AM PDT     -0.05 feet Low Tide
Tue -- 04:28 PM PDT     10.44 feet High Tide
Tue -- 06:11 PM PDT     Moonset
Tue -- 08:49 PM PDT     Sunset
Tue -- 09:56 PM PDT     4.47 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.89.911.512.111.610.17.752.30.5-00.82.75.17.59.410.310.39.586.454.55.1

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 Pendleton, OR (1,6,7,8)
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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.