Sunday, November18, 2018 L-36.com


Marine Weather and Tides
Ronald, 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 7:09AMSunset 4:25PM Sunday November 18, 2018 9:25 AM PST (17:25 UTC) Moonrise 2:46PMMoonset 1:46AM Illumination 81% 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- 843 Am Pst Sun Nov 18 2018
Today..N wind to 10 kt. Wind waves 1 ft or less.
Tonight..N wind to 10 kt becoming variable after midnight. Wind waves 1 ft or less. Patchy fog after midnight.
Mon..Light wind becoming S to 10 kt in the afternoon. Wind waves 1 ft or less. Areas of fog in the morning.
Mon night..Light wind. Wind waves less than 1 ft.
Tue..S wind to 10 kt. Wind waves 1 ft or less.
Tue night..S wind to 10 kt. Wind waves 1 ft or less.
Wed..SE wind 5 to 15 kt becoming S to 10 kt. Wind waves 2 ft or less.
Thu..S wind 5 to 15 kt rising to 15 to 25 kt. Wind waves 2 ft or less building to 2 to 4 ft.
PZZ100 843 Am Pst Sun Nov 18 2018
Synopsis for the northern and central washington coastal and inland waters..Offshore flow will prevail through early this week with high pressure east of the cascades. The next frontal system will approach the region on Tuesday then split and weaken as it moves inland on Wednesday. A stronger pacific frontal system will impact the area on Thursday with gales possibly over the coastal waters.


7 Day Forecast for Marine Location Near Ronald, WA
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location: 47.25, -121.08     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 181006
afdpdt
area forecast discussion
national weather service pendleton or
207 am pst Sun nov 18 2018

Short term Today through Tuesday night... High pressure aloft will
dominate the weather over the region and forecast area through
Monday night and early Tuesday morning. There will be increasing
strength of lower columbia basin and adjacent valley inversions
through this period. As a result there will be slowly increasing
coverage of low clouds and fog in these areas. At night temperatures
will be below freezing resulting in freezing fog in most if not all
areas. This will lead to fog droplets freezing on surfaces creating
slick conditions. Temperatures under the inversions will have little
diurnal change. However, in the mountains, above the inversions,
there will be a greater swing in diurnal temperatures from day to
night. The inversions will also lead to increasing pollutants
trapped in the valleys resulting in air stagnation conditions. As
such an air stagnation advisory is in effect from now until at least
Wednesday morning in the basin and adjacent valleys. After Tuesday
morning the upper ridge will shift eastward allowing some clouds and
moisture to move in from off the pacific, with the flow aloft
becoming more southwest to southerly. This may help to mix out the
atmosphere, but the strong inversions will be difficult to break so
kept at least patchy fog in the forecast through Tuesday night.

Winds will be light through the short term period. 88

Long term Wednesday through Sunday... A rather abrupt pattern
change beginning Wednesday as large scale upper ridging will flatten
slightly and shift eastward into the central us and bring increased
southwest flow aloft as a large scale upper-level trough with a
series of storm systems rotating through approaches the northern
pacific. This will bring a period of unsettled weather, and with any
luck, beneficial rains mountain snow beginning late Wednesday and
continuing through the thanksgiving holiday weekend.

Fog low stratus is expected to continue into Wednesday morning, but
the first upper-level trough and associated cold front is expected
to push into the pacnw Wednesday afternoon and increasing winds and
precipitation should allow fog to lift diminish from west to east
through the columbia gorge and basin. Model and ensemble guidance
have strong consensus with timing of precipitation chances
increasing markedly by Wednesday evening, especially for higher
elevations. This system will traverse the region through Thursday.

Soon after, a duo of wetter upper-level troughs will pass through
Thursday night into Saturday, making for a damp cloudy holiday
weekend. Nonetheless, this should mean beneficial precipitation.

Snow levels generally look to remain around 4000-5000 feet with high
elevation mountain snow a good possibility and rain elsewhere. Long
range models diverge substantially late in the weekend, but general
trend is for a brief period of drier weather later Saturday into
Sunday under transient ridging before another upper-level trough
southeastward into the pacific northwest. Breezy S to SW winds for
most of the long-term with Thursday and Friday pegged to likely be
the windiest days. Temperatures will be moderated with modest
diurnal ranges under the cloudy, wetter marine-like pattern. Highs
will generally be in the 40s in the valleys (30s mountains) with
lows in the 30s (20s mountains).

Aviation 12z tafs... Patchy fog stratus developing this morning in
the lower columbia basin and gorge with local ifr lifr conditions
possible, especially near kpdt, kalw and kpsc. CIGS vis should
improve by midday but some lingering stratus could remain near the
columbia river. Expect an increase in overall fog stratus coverage
tonight tomorrow morning with ifr or lower conditions possible at
all terminals. Light winds around 5kts or less expected through the
period.

Preliminary point temps pops
Pdt 43 25 41 25 0 0 0 0
alw 42 25 41 27 0 0 0 0
psc 42 22 41 23 0 0 0 0
ykm 43 22 42 22 0 0 0 0
hri 43 24 41 25 0 0 0 0
eln 45 23 46 22 0 0 0 0
rdm 52 16 52 18 0 0 0 0
lgd 47 25 47 26 0 0 0 0
gcd 50 27 51 27 0 0 0 0
dls 47 27 47 27 0 0 0 0

Pdt watches warnings advisories
Or... Air stagnation advisory from 7 am this morning to 1 pm pst
Wednesday for orz041-044-507-508-510-511.

Wa... Air stagnation advisory from 7 am this morning to 1 pm pst
Wednesday for waz024-026>029.

88 84 84


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCNW1 - 9446484 - Tacoma, WA 71 mi43 min 35°F 53°F1023.7 hPa
TCMW1 - 9446482 - Tacoma Met, WA 71 mi43 min ESE 5.1 G 6
EBSW1 - 9447130 - Seattle, WA 71 mi37 min S 2.9 G 4.1 53°F1023.2 hPa

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA14 mi89 minVar 610.00 miFair28°F21°F78%1025.4 hPa

Wind History from SMP (wind in knots)
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Last 24hr6545344545556E76645444465
1 day ago3SW4CalmCalmCalmCalmCalmCalmCalm3Calm43333543CalmCalm444
2 days ago------Calm5W7NW86W7466456455W65433Calm

Tide / Current Tables for Des Moines, Washington
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Des Moines
Click for Map
Sun -- 01:12 AM PST     8.11 feet High Tide
Sun -- 01:51 AM PST     Moonset
Sun -- 06:52 AM PST     3.87 feet Low Tide
Sun -- 07:18 AM PST     Sunrise
Sun -- 01:28 PM PST     11.52 feet High Tide
Sun -- 02:50 PM PST     Moonrise
Sun -- 04:30 PM PST     Sunset
Sun -- 08:17 PM PST     3.05 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.78.187.36.35.14.23.94.45.67.29.110.611.411.410.69.27.25.33.83.13.34.25.6

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
Click for Map
Sun -- 01:08 AM PST     7.64 feet High Tide
Sun -- 01:51 AM PST     Moonset
Sun -- 06:55 AM PST     3.64 feet Low Tide
Sun -- 07:18 AM PST     Sunrise
Sun -- 01:24 PM PST     10.85 feet High Tide
Sun -- 02:50 PM PST     Moonrise
Sun -- 04:29 PM PST     Sunset
Sun -- 08:20 PM PST     2.87 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.37.67.56.95.94.83.93.64.15.26.88.61010.810.7108.66.853.62.933.95.3

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Pendleton, OR (12,3,4,5)
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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.