Thursday, November15, 2018 L-36.com


Marine Weather and Tides
Friday Harbor, 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 7:21AMSunset 4:35PM Thursday November 15, 2018 2:29 AM PST (10:29 UTC) Moonrise 1:43PMMoonset 11:45PM Illumination 49% Phase: First Quarter Moon; Moon at 7 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- 848 Pm Pst Wed Nov 14 2018
.small craft advisory in effect from Thursday morning through Thursday evening...
Tonight..S wind 5 to 15 kt. Wind waves 1 to 2 ft. A slight 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. A chance of showers.
Thu night..S wind 15 to 25 kt becoming sw 5 to 15 kt after midnight. Wind waves 2 to 4 ft subsiding to 2 ft or less after midnight. Showers likely in the evening then a chance of showers after midnight.
Fri..N wind 5 to 15 kt. Wind waves 1 to 2 ft.
Fri night..N wind 5 to 15 kt. Wind waves 1 to 2 ft.
Sat..NE wind to 10 kt. Wind waves 1 ft.
Sat night..N wind to 10 kt. Wind waves 1 ft.
Sun..NE wind to 10 kt. Wind waves 1 ft.
Mon..E wind to 10 kt. Wind waves 1 ft.
PZZ100 848 Pm Pst Wed Nov 14 2018
Synopsis for the northern and central washington coastal and inland waters..Gradients and winds will subside tonight. A second system will move through Thursday afternoon into early Friday. Small craft advisory conditions likely again for the coastal waters, west entrance, and northern inland waters. In wake of this system, offshore flow will return for the weekend.


7 Day Forecast for Marine Location Near Friday Harbor, WA
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location: 48.62, -123.15     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 151020
afdsew
area forecast discussion
national weather service seattle wa
230 am pst Thu nov 15 2018

Synopsis Today will be mostly dry with Sun breaks. A weak weather
system will affect mainly northern washington and the mountains
tonight and Friday morning. A sharp upper level ridge will give dry
conditions and patchy night and morning fog this weekend. A front
may approach the region early next week with a chance of rain.

Short term Showers from the weak weather system yesterday have
now entirely ended. Today will be mostly in between weather systems,
with some Sun breaks or partly sunny conditions. Rain from the next
weak weather system will begin to develop in the afternoon in the
far north. Highs today will be in the low to mid 50s.

This weather system will move from north to south tonight and
Friday. It looks strong enough for likely or better pops over the
north and in the mountains, but it appears to lose punch as it moves
south. There is a wide swath of territory over the southern half of
the state with only chance pops. The system will be dissipating as
it exits to the southeast Friday afternoon, and Friday night should
be dry. Skies will clear from north to south Friday night. Highs on
Friday will be in the low to mid 50s, but overnight lows will fall
into the 30s in many places, perhaps touching the freezing mark in
the far north.

As an upper level ridge sharpens offshore, Saturday will be sunny
except for some morning fog. Highs will be only in the low 50s in
cool northerly flow. Saturday night will be cool, with widespread
lows below freezing away from the water and the urban core. Near the
water and in the cities, the lows will still be in the low to mid
30s. Burke

Long term The upper level ridge will move slowly over washington
on Sunday, and its effects will still be felt on Monday. Sunday will
be mostly sunny with patchy fog, with highs not quite 50. Sunday
night will be another cool one, with lows in the 30s. Have not
changed the extended forecast much, which is mostly dry on Monday
and has chance pops Tuesday and Wednesday. The recent trend in
models is toward drier conditions, with the euro waiting until
Wednesday to bring the next system, and the GFS waiting all the way
until next Friday. Temperatures are likely to be near normal through
the period. Burke

Aviation Low clouds currently exist across most of the region due
to low level moisture in place. This low cloud coverage will
continue into the morning hours. Expect low-end MVFR and high-end
ifr during this time period. Some areas of fog cannot be ruled out.

Some brief breaks in cloud coverage will be possible this afternoon,
but this will be short-lived as a secondary system will reinforce
cloud cover tomorrow night and Friday. Although light rain will be
possible across the area tomorrow night into Friday, the majority of
precip activity will be confined to the northern puget sound region.

Southerly winds will continue through the duration of the taf
period.

Ksea... Above discussion applies. Moist airmass in place will keep
ceilings MVFR to high-end ifr through the morning hours. Some
improvement toVFR will be possible after 18z-20z but ceilings will
deteriorate once again tomorrow night into Friday as another system
pushes through. Winds will fluctuate from SW to SE thru the taf
period under 10kts. Jd

Marine A shortwave trough currently approaching the central bc
coast as of 09z Thu will be responsible for increasing swells to 10-
11ft across the outer coastal waters and the west entrance of the
strait this morning and thru most of today. Have made slight timing
adjustments to the SCA for hazardous seas across these areas, but
for the most part it remains unchanged. Elsewhere, gradients have
relaxed across the waters in the wake of a weak frontal system. This
be be short lived in places as winds are expected to pick up to sca
criteria later this morning, primarily across the northern inland
waters. Latest guidance hi-res arw and 4km WRF suggestive of small
craft winds in the central and eastern strait tonight and into early
Friday as another cold front drops south across the area. Winds and
gradients look to relax thru the day on Friday in the wake of the
front as weak onshore flow persists. Flow still expected to
transition offshore by the weekend with upper ridging building into
the area and tranquil weather conditions expected.

Kovacik

Hydrology River flooding is unlikely through the next 7 days.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory for hazardous seas until 10 pm pst this
evening 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 from 10 pm this evening to 4 am pst Friday
for central u.S. Waters strait of juan de fuca-east
entrance u.S. Waters strait of juan de fuca.

Small craft advisory from 10 am this morning to 4 am pst Friday
for northern inland waters including the san juan islands.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDW1 - 9449880 - Friday Harbor, WA 9 mi53 min W 1.9 G 4.1 49°F 50°F1028.2 hPa
46088 - New Dungeness, WA (Hein Bank) 20 mi39 min SSE 5.8 G 5.8 50°F 49°F1028.2 hPa (+0.4)48°F
CHYW1 - 9449424 - Cherry Point, WA 27 mi41 min 1027.9 hPa
CPMW1 27 mi41 min SSE 9.9 G 11 49°F
SISW1 - Smith Island, WA 27 mi39 min SSE 9.9 G 11 51°F 1028.3 hPa (+0.0)47°F
46118 31 mi94 min WNW 12 50°F 1027.5 hPa48°F
PBFW1 - Padilla Bay Reserve, WA 38 mi59 min SSE 2.9 46°F 1029 hPa46°F
PTAW1 - 9444090 - Port Angeles, WA 38 mi53 min SW 2.9 G 5.1 47°F 49°F1028.5 hPa
PTWW1 - 9444900 - Port Townsend, WA 41 mi41 min S 1.9 G 2.9 50°F1029.1 hPa

Wind History for Friday Harbor, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Friday Harbor Airport, WA10 mi36 minSSE 44.00 miFog/Mist49°F46°F93%1028.5 hPa
Eastsound, Orcas Island Airport, WA15 mi34 minS 910.00 miOvercast50°F50°F100%1027.4 hPa

Wind History from FHR (wind in knots)
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Last 24hr3E9E5SE6S11
G19
SE11SE4S8SE7S7S7S9S10S6S7E7S6SE6SE6SW3CalmS4SW3S4
1 day agoCalmCalmN3CalmCalmCalmCalmCalmE5SE6SE5SE5S3CalmCalmCalmNE3N3E9E10CalmE6NE6E7
2 days agoN33W3NW3N6N6N6N3N5N45N6N6CalmNW3CalmCalmCalmCalmCalmN4N4N3N5

Tide / Current Tables for Roche Harbor, San Juan Island, Washington
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Roche Harbor
Click for Map
Thu -- 03:32 AM PST     1.03 feet Low Tide
Thu -- 06:54 AM PST     First Quarter
Thu -- 07:21 AM PST     Sunrise
Thu -- 11:37 AM PST     7.62 feet High Tide
Thu -- 01:41 PM PST     Moonrise
Thu -- 04:32 PM PST     Sunset
Thu -- 07:03 PM PST     4.36 feet Low Tide
Thu -- 09:28 PM PST     4.62 feet High Tide
Thu -- 11:45 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.12.21.51.11.11.62.53.64.96.177.57.67.36.765.34.84.54.44.44.64.64.4

Tide / Current Tables for Limestone Point, Spieden Channel, Washington Current
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Limestone Point
Click for MapFlood direction 85 true
Ebb direction 283 true

Thu -- 01:14 AM PST     -1.81 knots Max Ebb
Thu -- 04:15 AM PST     0.00 knots Slack
Thu -- 06:54 AM PST     First Quarter
Thu -- 07:10 AM PST     1.81 knots Max Flood
Thu -- 07:20 AM PST     Sunrise
Thu -- 10:26 AM PST     -0.00 knots Slack
Thu -- 01:41 PM PST     Moonrise
Thu -- 03:08 PM PST     -2.44 knots Max Ebb
Thu -- 04:32 PM PST     Sunset
Thu -- 06:48 PM PST     0.00 knots Slack
Thu -- 08:04 PM PST     0.46 knots Max Flood
Thu -- 09:52 PM PST     -0.00 knots Slack
Thu -- 11:45 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.6-1.8-1.7-1.1-0.30.61.41.81.61.20.4-0.5-1.3-1.9-2.3-2.4-2.3-1.7-0.80.10.50.3-0.1-0.5

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 (5,6,7,8)
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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.