Thursday, March23, 2017 L-36.com


Marine Weather and Tides
Friday Harbor, 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 7:05AMSunset 7:33PM Thursday March 23, 2017 3:07 PM PDT (22:07 UTC) Moonrise 3:55AMMoonset 1:39PM Illumination 14% Phase: Waning Crescent; Moon at 26 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- 300 Pm Pdt Thu Mar 23 2017
.gale warning in effect through late tonight...
.small craft advisory in effect from late tonight through Friday afternoon...
Tonight..SE wind 25 to 35 kt...becoming S late. Wind waves 4 to 6 ft. Rain at times.
Fri..S wind 15 to 25 kt. Wind waves 2 to 4 ft. A chance of rain in the morning then showers likely and a slight chance of tstms in the afternoon.
Fri night..S wind 5 to 15 kt. Wind waves 2 ft or less. A slight chance of tstms in the evening. Showers likely.
Sat..SW wind 5 to 15 kt. Wind waves 2 ft or less.
Sat night..W wind to 10 kt becoming S after midnight. Wind waves 1 ft or less.
Sun..SE wind 5 to 15 kt. Wind waves 2 ft or less.
Sun night..Light wind becoming se to 10 kt after midnight. Wind waves 1 ft or less.
Mon..N wind to 10 kt becoming W 10 to 20 kt. Wind waves 1 to 3 ft.
Tue..SW wind 5 to 15 kt becoming se. Wind waves 2 ft or less.
PZZ100 300 Pm Pdt Thu Mar 23 2017
Synopsis for the northern and central washington coastal and inland waters..A vigorous front over the coastal waters this evening will shift through the inland waters later tonight. Onshore shore flow will prevail behind the front Friday and Friday night. Weak surface high pressure will shift over the area Saturday afternoon and night. Another low pressure system will affect the waters Sunday into early next week.

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 231608
afdsew
area forecast discussion
national weather service seattle wa
900 am pdt Thu mar 23 2017

Synopsis Rain will reach the coast this afternoon, and the
interior this evening, as a front moves onshore. An upper trough
will bring showers Friday. Showers will decrease Saturday as the
trough shifts inland. Additional fronts will reach the area Sunday
and around Wednesday.

Short term Radar shows scattered showers on the coast and over
the olympics. These showers are not associated with the front that
is still well offshore, and they should diminish this morning.

Visible satellite imagery shows a mix of clouds and Sun over inland
areas, with more solid clouds on the coast. Rain will develop on the
coast this afternoon, and clouds will increase over inland areas.

Highs today will be mostly in the low to mid 50s.

The front will move onshore this evening bringing rain to all areas,
with decreasing showers behind the front later tonight. The
mountains will pick up some snow but amounts look sub-advisory.

There will also be some breezy to windy conditions coast and north
interior.

An upper trough will move over the area on Friday giving showers.

A shortwave in the flow will enhance showers in the afternoon.

Models have negative lifted indices Friday afternoon over the puget
sound region, so there might even be an afternoon thunderstorm or
two. Will wait for later models before introducing what would only
be a slight chance of thunderstorms. The upper trough will slowly
shift inland Friday night and Saturday. There will be enough
lingering instability for a continued chance of showers but the
trend should be toward drying. High temperatures in the low to mid
50s on Friday will fall a bit, into mostly the low 50s on Saturday
behind the front. Burke/schneider

Long term Previous discussion... The pattern will be progressive
the first half of next week with a series of weather systems
bringing rainy periods interspersed with brief periods of relative
dry weather in between. The first frontal system will reach the area
Sunday. Models are in good agreement with this. Beyond, Sunday,
confidence in the details decreases as models differences increase.

There may or may not be another period of more organized rain Monday
night/early Tuesday. There is higher confidence that a frontal
system will bring another batch of rain Wednesday. Schneider

Aviation Moderate southerly flow aloft today will becoming
strong southwest flow aloft tonight as a trough moves into the
pacific northwest. Air mass generally moist and weakly unstable
becoming stable this evening. Thunderstorms not expected. Moisture
increasing at all levels this evening. Rain at times along the
coast, then steady rain developing across the area late this
afternoon and early evening.

Cigs should remainVFR today with light rain at times mainly west of
puget sound. Steady rain will develop over puget sound and the rest
of the interior after 6-7 pm. Brief MVFR is possible with rain
tonight but CIGS for the most part will be lowVFR 3-4k ft.

Ksea... South-southeast wind 8-13 kt.VFR expected today with
multiple sct-bkn cloud layers from 4-6k ft upwards. Steady light
rain arrives around 6 pm with CIGS around 3-4k ft. Dtm

Marine A strong front will reach the coastal waters later today
and move through the inland waters by around midnight tonight. This
system should produce fairly solid gales of 30 to 40 kt over the
coastal waters late today through tonight, with fairly brief gales
over the eastern strait of juan de fuca and northern inland waters
this evening into early Friday morning. Small craft winds most other
waters. Wind in puget sound will stay southerly 10 to 20 kt, but
brief small craft could occur at the north end tonight.

A trough will follow the front on Friday, with fairly widespread
small craft advisory winds likely. Weak high pres will build over
the region Saturday for a period of lighter winds. A relatively
weak pacific frontal system will move through the region Sunday
night. Dtm/mcdonnal

Hydrology The white river at r street near auburn is forecast to
remain near flood stage through at least Friday, primarily due to
releases from mud mountain dam. Elsewhere, river flooding is not
expected for the next 7 days.

Sew watches/warnings/advisories
Wa... None.

Pz... Small craft advisory until noon pdt today 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.

Gale warning from noon today to midnight pdt tonight 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.

Small craft advisory until 6 pm pdt this evening for east
entrance u.S. Waters strait of juan de fuca-northern inland
waters including the san juan islands.

Gale warning from 6 pm this evening to 3 am pdt Friday for east
entrance u.S. Waters strait of juan de fuca-northern inland
waters including the san juan islands.

Small craft advisory from 3 pm this afternoon to 6 am pdt Friday
for admiralty inlet-central u.S. Waters strait of juan de
fuca-west entrance u.S. Waters strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDW1 - 9449880 - Friday Harbor, WA 9 mi92 min ESE 11 G 16 49°F 46°F1015.9 hPa
46088 - New Dungeness, WA (Hein Bank) 20 mi48 min SE 18 G 23 48°F 47°F2 ft1013.6 hPa40°F
SISW1 - Smith Island, WA 26 mi68 min SE 22 G 24 49°F 1014.8 hPa (-1.4)
CHYW1 - 9449424 - Cherry Point, WA 27 mi50 min SSE 13 G 15 1015.3 hPa
CPMW1 27 mi50 min SSE 15 G 18 50°F
46118 31 mi83 min SE 14 49°F 1015.5 hPa40°F
PBFW1 - Padilla Bay Reserve, WA 38 mi98 min SSW 14 53°F 1016 hPa40°F
PTAW1 - 9444090 - Port Angeles, WA 38 mi92 min 1 G 4.1 47°F 47°F1014.7 hPa
PTWW1 - 9444900 - Port Townsend, WA 41 mi56 min E 12 G 16 49°F 47°F1016.1 hPa

Wind History for Friday Harbor, WA
(wind in knots)    EDIT      (on/off)   Help
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N4
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Friday Harbor, Friday Harbor Airport, WA10 mi75 minESE 16 G 2210.00 miPartly Cloudy51°F37°F61%1015.4 hPa
Eastsound, Orcas Island Airport, WA15 mi73 minS 10 G 1910.00 miMostly Cloudy52°F35°F54%1014.6 hPa

Wind History from FHR (wind in knots)
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Last 24hrSE10
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SW76W5S5SE8SE9SE7E7E7E9SE10SE13SE11
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1 day agoSE8SE12
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SE4SE7SE4SE4CalmSE3E3NE3SE6E8E8E13
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G17
2 days ago6N84N5N7N6N7N5N6N3CalmN5CalmN4NE7NE53NE4N6NE4N3NE4NE6NE5

Tide / Current Tables for Roche Harbor, San Juan Island, Washington
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Roche Harbor
Click for Map
Thu -- 03:43 AM PDT     7.07 feet High Tide
Thu -- 04:54 AM PDT     Moonrise
Thu -- 07:08 AM PDT     Sunrise
Thu -- 09:25 AM PDT     5.09 feet Low Tide
Thu -- 01:13 PM PDT     5.90 feet High Tide
Thu -- 02:38 PM PDT     Moonset
Thu -- 07:30 PM PDT     Sunset
Thu -- 08:38 PM PDT     0.76 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.35.46.46.97.16.86.35.75.35.15.15.45.75.95.85.44.63.62.41.40.90.81.32.2

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 -- 02:01 AM PDT     -0.00 knots Slack
Thu -- 04:54 AM PDT     Moonrise
Thu -- 06:21 AM PDT     -2.33 knots Max Ebb
Thu -- 07:08 AM PDT     Sunrise
Thu -- 09:43 AM PDT     0.00 knots Slack
Thu -- 11:24 AM PDT     0.93 knots Max Flood
Thu -- 01:08 PM PDT     -0.00 knots Slack
Thu -- 02:38 PM PDT     Moonset
Thu -- 05:51 PM PDT     -2.96 knots Max Ebb
Thu -- 07:30 PM PDT     Sunset
Thu -- 09:13 PM PDT     0.00 knots Slack
Thu -- 11:54 PM PDT     2.23 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.81.10-0.9-1.7-2.1-2.3-2.2-1.8-0.90.30.90.80.1-0.7-1.6-2.4-2.8-3-2.6-1.7-0.30.91.9

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 (18,4,5,8)
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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.