Tuesday, January23, 2018 L-36.com


Marine Weather and Tides
Friday Harbor, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 7:49AMSunset 5:01PM Tuesday January 23, 2018 7:34 PM PST (03:34 UTC) Moonrise 11:06AMMoonset 12:00AM 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- 245 Pm Pst Tue Jan 23 2018
.gale warning in effect until 6 pm pst this evening...
.small craft advisory in effect from 6 pm pst this evening through late tonight...
Tonight..SE wind 25 to 35 kt easing to 15 to 25 kt early in the evening. Wind waves 4 to 6 ft subsiding to 2 to 4 ft after midnight. Rain.
Wed..SE wind 10 to 20 kt becoming 5 to 15 kt in the afternoon. Wind waves 1 to 3 ft. Rain in the morning then showers in the afternoon.
Wed night..SE wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers likely.
Thu..SE wind 20 to 30 kt. Wind waves 3 to 5 ft.
Thu night..SE wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft.
Fri..S wind 5 to 15 kt becoming 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft.
Fri night..S wind 5 to 15 kt becoming se 15 to 25 kt after midnight. Wind waves 2 ft or less building to 2 to 4 ft after midnight.
Sat..E wind 15 to 25 kt becoming se 5 to 15 kt. Wind waves 2 to 4 ft subsiding to 2 ft or less.
Sun..SE wind 10 to 20 kt rising to 15 to 25 kt. Wind waves 2 to 4 ft.
PZZ100 245 Pm Pst Tue Jan 23 2018
Synopsis for the northern and central washington coastal and inland waters..A frontal system will move slowly inland tonight with easing winds. Weak disturbance will cross the area roughly every 12 to 18 hours over the next few days. Stronger systems will arrive Friday night and Sunday

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


Area Discussion for - Seattle, WA
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Fxus66 ksew 240041
afdsew
area forecast discussion
national weather service seattle wa
441 pm pst Tue jan 23 2018

Synopsis A stormy pattern will keep conditions wet and
unsettled through the end of this workweek. Expect locally heavy
precipitation and gusty winds at times.

Short term
The warm front was moving across the CWA at this time. The
heaviest precipitation has been falling on the south slopes of
the olympic range and the kitsap peninsula, where 12-hour rainfall
amounts, ending at 330 pm pst, were in the 1-1.75 inch range.

In the cascades, the snow was starting to pick up. At mount baker
and paradise, on mount rainier, the snow was falling at a rate of
1-2 inches per hour this afternoon. Paradise and mount baker will
likely receive the heaviest snowfall during this event.

There will be somewhat of a lull in the precipitation later
tonight or, at least, the precipitation will become light in the
wake of the warm front. The precipitation will increase somewhat
on Wednesday ahead of and with the cold or occluded front. This
front will sweep across the region during the day Wednesday. It
should be east of the cascades by 4 pm, Wednesday.

Cool and showery conditions will prevail over the area Wednesday
night through Friday due to the presence of a chilly upper level
trough. The air mass will destabilize Wednesday night for a risk
of thunderstorms over the coastal waters. Expect any of the
heavier showers to contain small hail on the lowlands during this
time frame; although, the precipitation may fall as snow or a
rain snow mix in the cascade foothills at elevations above a
thousand feet. Elevations above this foot level could receive a
couple of inches of wet snow.

Long term
The medium range solutions were in better agreement in regards to
the atmospheric river that is anticipated this weekend. The
forecast was heavily weighted towards the ECMWF solution, which
was preferred. The other solutions were coming into more agreement
with the ecmwf.

A deep fetch of moisture from the subtropics will become directed
at western wa during the early part of this period. Rising snow
levels, a wetter air mass, and strong transport winds will result
in periods of heavy rain across much of the cwa, beginning
Saturday and then continuing into Monday morning. Rainfall amounts
in the mountains during the 48-hour period ending at 4 pm pst
Monday are anticipated to be 7-12 inches on the olympic range and
4-8 inches in the cascades. Across the lowlands, amounts are
forecast to be in the 1-4 inch range, with lighter amounts
occurring in the rain-shadow just northeast of the olympic range.

The rainfall amounts were bumped up above the model guidances
because they seemed too low. This amount rainfall on top of what
has already fallen could lead to flooding on many rivers as well
as urban and or small stream flooding.

Anticipate an upper level trough to move over the pacific
northwest the end of the period for a return to colder weather.

Aviation Southerly flow aloft will prevail tonight and
Wednesday. A frontal system will shift inland tonight. An upper
level disturbance will move through the area late Wednesday
afternoon. The air mass is moist and stable. It will become
unstable Wednesday.

There will be a mix ofVFR low clouds, MVFR, and even some ifr
ceilings tonight. The trend, if any, will be for lowering ceilings
tonight.

Areas of low level wind shear AOB 2000 agl will persist for a few
more hours this afternoon until the front passes and southerly
winds at the surface develop increase.

Ksea... Ceilings 3000-4000 feet should lower a bit tonight with
mostly MVFR into Wednesday. Low level wind shear should persist
until earl evening when south winds 8-12 knots develop. Schneider

Marine A frontal system will move inland tonight with easing
winds. Gales should be ending this afternoon or evening. Small
craft advisory winds after that will ease as well. 10-13 foot
swell for the coastal waters will linger into Wednesday.

Additional disturbances will move through the area over the next
few days for small craft advisory strength winds at times.

Stronger systems are expected Friday night and Sunday. Schneider

Hydrology
The stage at the skokomish river should start shooting up shortly
in response to the heavy rain that has fallen today. The observed
stage is lagging a little behind the forecast, so the river may
reach flood stage slightly later than currently forecast. A flood
warning was issued earlier for the skokomish river.

There is still the potential for an atmospheric river to impact
the area this weekend into early next week for the possibility of
excessive rainfall. At this time, the location, exact amount, and
timing of the heavy rain are still not certain. The screaming
message is that the combination of a milder (snow levels rising
above 5500 feet) and wetter air mass with strong transport winds
could could possibly lead to flooding on many rivers as well as
potential cause some urban and or small stream flooding this
weekend or early next week.

The USGS landslide threshold indices were near or slightly above
the thresholds where landslides become probable. The additional
rainfall this week, and especially this weekend, will only
increase the threat of shallow landslides.

Sew watches warnings advisories
Wa... Flood warning in effect for the skokomish river in mason
county.

Winter storm warning until 6 am pst Wednesday for cascades
of pierce and lewis counties- cascades of snohomish and king
counties-cascades of whatcom and skagit counties.

Pz... Small craft advisory from 9 pm this evening to 3 pm pst
Wednesday for coastal waters from point grenville to cape
shoalwater 10 to 60 nm-coastal waters from point grenville
to CAPE shoalwater out 10 nm.

Gale warning until 9 pm pst this evening for admiralty inlet-
coastal waters from point grenville to CAPE shoalwater 10
to 60 nm-coastal waters from point grenville to cape
shoalwater out 10 nm-east entrance u.S. Waters strait of
juan de fuca.

Small craft advisory for rough bar until 10 am pst Wednesday for
grays harbor bar.

Small craft advisory until 3 pm 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.

Small craft advisory until 6 am pst Wednesday for northern
inland waters including the san juan islands.

Gale warning until 6 pm pst this evening for central u.S. Waters
strait of juan de fuca-northern inland waters including the
san juan islands.

Small craft advisory until 9 am pst Wednesday for west entrance
u.S. Waters strait of juan de fuca.

Small craft advisory until 9 pm pst this evening for central
u.S. Waters strait of juan de fuca.

Small craft advisory until 4 pm pst this afternoon for puget
sound and hood canal.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDW1 - 9449880 - Friday Harbor, WA 9 mi58 min SE 8 G 15 45°F 47°F1006.8 hPa
46088 - New Dungeness, WA (Hein Bank) 20 mi44 min ESE 23 G 31 45°F 47°F5 ft1005.3 hPa (-0.8)44°F
SISW1 - Smith Island, WA 26 mi34 min ESE 23 G 25 44°F 1006.6 hPa (-0.7)
CHYW1 - 9449424 - Cherry Point, WA 27 mi46 min NE 8 G 11 40°F 1006.9 hPa
CPMW1 27 mi52 min NE 5.1 G 7 41°F 46°F
PBFW1 - Padilla Bay Reserve, WA 38 mi64 min ESE 12 44°F 1007 hPa42°F
PTAW1 - 9444090 - Port Angeles, WA 38 mi58 min 1 G 1.9 46°F 48°F1005.8 hPa
PTWW1 - 9444900 - Port Townsend, WA 41 mi52 min E 2.9 G 8.9 45°F 46°F1007.9 hPa

Wind History for Friday Harbor, WA
(wind in knots)    EDIT      (on/off)   Help
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Last
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SW1
E4
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G12
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G14
E12
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SW9
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G12
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SE3
G6
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G8
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G20
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SE11
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G26
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G33
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G28
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G30
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G32
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G31
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G24
S12
G21
S7
G11
S4
SW13
G17
SW7
G11
SW6
G9
SW10
G15
SW8
G11

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Friday Harbor Airport, WA10 mi41 minSE 16 G 2410.00 miLight Rain45°F41°F86%1006.5 hPa
Eastsound, Orcas Island Airport, WA15 mi39 minS 14 G 235.00 miLight Rain46°F42°F87%1006.1 hPa

Wind History from FHR (wind in knots)
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Last 24hrCalmE6E7E6E7E10E9E13E13
G22
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G17
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SE17
G28
SE19
G34
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G31
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1 day agoS4S11
G17
SE9SE10S4SE6S5S5S4S3SW9
G15
S6S64SW5SW9
G17
S8S7S4SE4S4CalmE3Calm
2 days agoSE17
G32
SE25
G34
SE24
G35
SE21
G39
SE28
G44
SE25
G42
SE24
G41
SE27
G43
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S7S4SW6SW76SW7SW3S7
G15

Tide / Current Tables for Roche Harbor, San Juan Island, Washington
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Roche Harbor
Click for Map
Tue -- 02:07 AM PST     1.96 feet Low Tide
Tue -- 07:52 AM PST     Sunrise
Tue -- 09:18 AM PST     8.14 feet High Tide
Tue -- 11:06 AM PST     Moonrise
Tue -- 04:10 PM PST     3.26 feet Low Tide
Tue -- 04:56 PM PST     Sunset
Tue -- 09:20 PM PST     5.04 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.92.222.22.945.36.57.68.187.36.35.14.13.53.33.43.84.34.7554.7

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

Tue -- 12:00 AM PST     -2.16 knots Max Ebb
Tue -- 02:50 AM PST     0.00 knots Slack
Tue -- 05:45 AM PST     1.93 knots Max Flood
Tue -- 07:52 AM PST     Sunrise
Tue -- 08:12 AM PST     -0.00 knots Slack
Tue -- 11:06 AM PST     Moonrise
Tue -- 01:01 PM PST     -3.15 knots Max Ebb
Tue -- 04:40 PM PST     0.00 knots Slack
Tue -- 04:56 PM PST     Sunset
Tue -- 06:35 PM PST     1.22 knots Max Flood
Tue -- 08:53 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.2-1.8-0.90.111.71.91.30.2-0.8-1.7-2.4-3-3.1-2.8-2-0.90.31.11.20.6-0.1-0.7-1.2

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 Seattle, WA (22,6,7,8)
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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.