Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
Point Roberts, 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 7:19AMSunset 4:34PM Tuesday November 13, 2018 6:12 PM PST (02:12 UTC) Moonrise 12:39PMMoonset 9:42PM Illumination 35% Phase: Waxing Crescent; Moon at 6 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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PZZ133 Northern Inland Waters Including The San Juan Islands- 217 Pm Pst Tue Nov 13 2018
.small craft advisory in effect through Wednesday morning...
Tonight..SE wind 20 to 30 kt. Wind waves 3 to 5 ft. Rain likely.
Wed..SE wind 20 to 30 kt becoming S 10 to 20 kt in the afternoon. Wind waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Rain likely.
Wed night..S wind 5 to 15 kt. Wind waves 2 ft or less. A chance of showers.
Thu..S wind 5 to 15 kt rising to 15 to 25 kt in the afternoon. Wind waves 2 ft or less building to 2 to 4 ft in the afternoon.
Thu night..S wind 5 to 15 kt becoming sw after midnight. Wind waves 2 ft or less.
Fri..N wind to 10 kt. Wind waves 1 ft or less.
Fri night..N wind to 10 kt. Wind waves 1 ft or less.
Sat..N wind to 10 kt. Wind waves 1 ft or less.
Sun..NE wind to 10 kt. Wind waves 1 ft or less.
PZZ100 217 Pm Pst Tue Nov 13 2018
Synopsis for the northern and central washington coastal and inland waters..A weak front will cross the area this evening into Wednesday with small craft advisory winds for most waters through early Wednesday. A second weak system will then clip the area on Thursday. Offshore flow will return this weekend.


7 Day Forecast for Marine Location Near Point Roberts, WA
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location: 48.98, -123.08     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 132329
afdsew
area forecast discussion
national weather service seattle wa
326 pm pst Tue nov 13 2018

Synopsis Weather over western washington will transition today as
high pressure aloft weakens while a warm front begins to enter the
area. A secondary front will keep conditions wet Thursday and into
Friday. Upper level ridging is expected to resume over the weekend
allowing for dry conditions as well as overnight and morning fog. A
front may approach the region early next week with a chance of rain.

Short term Current satellite and the old trusty window show high
clouds continuing to push eastward in advance of the approaching
warm front. Current radar shows most of the rain with this front is
still predominantly over the coastal waters still... Although a stray
shower or two look like they may be trying to sneak in ahead of
everyone else. That said... Forecast continues to look in good shape
as models agree that this system will steadily move
eastward... Likely bringing more steady rainfall to locations east of
puget sound this evening. Once it gets here... Precip is expected to
remain over the area throughout the day on Wednesday.

Models suggests a brief break in the action Wednesday night and into
Thursday morning before a secondary system Thursday afternoon and
evening... Tapering off by midday Friday. Timing for the start of
this second round of precip is lining up as models are falling into
agreement... But the usual biases typical to each model show
themselves regarding solutions pertaining to the cessation of
rainfall... The GFS ending things by late Friday morning while the
ecmwf keeps it around through the afternoon... Ending things in the
evening. Models remain agreed that another upper level ridge
building over the pacific will allow dry conditions to return
Friday. Smr

Long term Models keep the upper level ridge in place for much of
the weekend... Although the GFS kind of dirties things up a bit by
introducing a shortwave disturbance into the ridge Sunday. It does
not show any precip with this feature... So will be something to keep
an eye on in future solutions. This minor feature aside... Models
once again fall prey to their typical dispositions as the gfs
maintains a dry forecast into Wednesday while the ECMWF brings in a
frontal system late Monday night into Tuesday. As has been the case
for forecasting this fall... Have opted to split the difference in
the model solutions and went with slight to low-end chance pops for
Monday into Tuesday with better chances for Wednesday.

However... Since this discrepancy falls in the days 7-9 time
frame... To read any degree of confidence into the forecast that far
out would be utter folly. Smr

Aviation Broken to overcast high clouds present across the
area this afternoon withVFR conditions. Light rain is approaching
the coast with ceilings beginning to lower for coastal locations.

Rain will continue to spread east southeast across the area this
evening into the overnight hours as a weak front moves inland with
showers continuing on Wednesday. Conditions will likely bounce
around fromVFR to MVFR during this period as rain moves in with
widespread MVFR conditions likely Wednesday morning. Aloft,
southwesterly flow today will shift to the west tonight into
Wednesday. Southerly winds at the surface.

Ksea... Above discussion applies.VFR conditions through early
Wednesday with lowering ceilings. Showers will move in after 4-5z
this evening, continuing through about 18-20z Wednesday. MVFR
ceilings likely Wednesday morning and possibly through the end of
the current TAF periods. Winds will be southerly to 6 to 12 kts
through the period. Ceo

Marine A weak front will move inland tonight into Wednesday.

Small craft advisory conditions expected across most of the coastal,
strait, and inland waters with the exception of the central strait.

A brief period of onshore flow likely in its wake with winds
relaxing slightly during the day Wednesday. A second weak system
will then clip the area on Thursday. Offshore flow will return this
weekend. Ceo

Hydrology A frontal system will bring rain at times to most of
western washington later this afternoon through late Wednesday. The
initial warm front will produce moderately strong southwest flow
aloft which will enhance rain amounts in the mountains. Meso models
indicate 1-2 inches at most over roughly a 36 hour period. This
amounts to a nice rain, but not much more than that. Area rivers
will see a bit of a bump up from the storms. Bottom line is that
flooding is not expected on area rivers through the next 7 days.

Mercer jbb

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 2 am pst Wednesday 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 until 10 am pst Wednesday for admiralty
inlet-east entrance u.S. Waters strait of juan de fuca-
puget sound and hood canal.

Small craft advisory until 10 am pst Wednesday for northern
inland waters including the san juan islands.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CPMW1 19 mi42 min NNE 6 G 6 49°F 49°F
CHYW1 - 9449424 - Cherry Point, WA 19 mi42 min 1025.1 hPa
FRDW1 - 9449880 - Friday Harbor, WA 30 mi96 min Calm G 1 48°F 50°F1025 hPa
46118 32 mi87 min 50°F 1024.5 hPa41°F
46146 - Halibut Bank 42 mi72 min SE 19 G 23 48°F 49°F2 ft1024.2 hPa (-1.1)
46088 - New Dungeness, WA (Hein Bank) 45 mi52 min E 5.8 G 7.8 49°F 49°F1024.1 hPa43°F
SISW1 - Smith Island, WA 47 mi82 min SE 8.9 G 12 52°F 1025.1 hPa (-1.3)41°F
PBFW1 - Padilla Bay Reserve, WA 48 mi42 min SW 1.9 50°F 1025 hPa40°F

Wind History for Cherry Point, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Eastsound, Orcas Island Airport, WA21 mi17 minN 010.00 miOvercast50°F44°F82%1024.7 hPa

Wind History from ORS (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3CalmCalmCalmS6S12S106
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1 day agoN5N6N8CalmCalmCalmCalmCalmCalm4CalmCalm5
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2 days agoCalmN6N8N8N125
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CalmCalm4CalmCalm3Calm3CalmNE53N44NW6NW6N104
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Tide / Current Tables for Samuel Island (North Shore), British Columbia
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Samuel Island (North Shore)
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Tue -- 02:29 AM PST     3.26 feet Low Tide
Tue -- 07:18 AM PST     Sunrise
Tue -- 11:01 AM PST     12.64 feet High Tide
Tue -- 12:38 PM PST     Moonrise
Tue -- 04:34 PM PST     Sunset
Tue -- 09:43 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.24.13.43.44.15.57.18.710.311.612.412.612.411.911.210.710.310.2109.89.498.37.4

Tide / Current Tables for Boat Passage, British Columbia Current
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Boat Passage
Click for Map
Tue -- 01:00 AM PST     0.00 knots Slack
Tue -- 04:36 AM PST     4.42 knots Max Flood
Tue -- 07:18 AM PST     Sunrise
Tue -- 08:27 AM PST     -0.00 knots Slack
Tue -- 11:34 AM PST     -2.93 knots Max Ebb
Tue -- 12:38 PM PST     Moonrise
Tue -- 03:04 PM PST     0.00 knots Slack
Tue -- 04:34 PM PST     Sunset
Tue -- 05:02 PM PST     1.12 knots Max Flood
Tue -- 07:09 PM PST     -0.00 knots Slack
Tue -- 09:43 PM PST     Moonset
Tue -- 10:48 PM PST     -2.51 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.6-01.83.34.34.43.62.30.7-0.8-2.1-2.8-2.9-2.3-1.2-0.10.81.10.90.1-0.8-1.7-2.3-2.5

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 (21,6,7,8)
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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.