Friday, February22, 2019 L-36.com


Marine Weather and Tides
Whidbey Island Station, 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 7:03AMSunset 5:44PM Friday February 22, 2019 7:41 PM PST (03:41 UTC) Moonrise 9:58PMMoonset 9:02AM Illumination 86% Phase: Waning Gibbous; Moon at 18 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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PZZ132 East Entrance U.s. Waters Strait Of Juan De Fuca- 244 Pm Pst Fri Feb 22 2019
.gale warning in effect until midnight pst tonight...
Tonight..W wind 25 to 35 kt becoming sw 15 to 25 kt after midnight. Wind waves 2 to 4 ft. A chance of showers.
Sat..SE wind 5 to 15 kt. Wind waves 2 ft or less. A chance of showers.
Sat night..SE wind 10 to 20 kt. Wind waves 1 to 3 ft. Showers likely.
Sun..E wind 5 to 15 kt becoming ne to 10 kt in the afternoon. Wind waves 2 ft or less.
Sun night..NW wind to 10 kt becoming E 5 to 15 kt after midnight. Wind waves 2 ft or less.
Mon..N wind 5 to 15 kt. Wind waves 2 ft or less.
Mon night..N wind 15 to 25 kt becoming nw 5 to 15 kt after midnight. Wind waves 2 to 4 ft subsiding to 2 ft or less after midnight.
Tue..E wind 5 to 15 kt rising to 20 to 30 kt. Wind waves 2 ft or less building to 3 to 5 ft.
Wed..NE wind 5 to 15 kt becoming n. Wind waves 2 ft or less.
PZZ100 244 Pm Pst Fri Feb 22 2019
Synopsis for the northern and central washington coastal and inland waters.. A frontal system has started to move through the area today and will continue to sink southeastward today. A weak low will drift south to the oregon coast by Sunday morning. Northeasterly offshore flow will develop Saturday night and continue through Tuesday with high pressure over british columbia and lower pressure south of washington.


7 Day Forecast for Marine Location Near Whidbey Island Station, WA
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location: 48.32, -122.83     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 222333
afdsew
area forecast discussion
national weather service seattle wa
333 pm pst Fri feb 22 2019

Synopsis Onshore flow will continue tonight for showers and
mountain snow. A cool upper trough will follow the front this
weekend. A system may bring more lowland snow to the region late
Sunday night and Monday.

Short term tonight through Monday We had mixed precipitation
as a cold front moved in today, but most areas are now reporting
rain with temps in the 40s. Showers will mainly impact the
cascades tonight with scattered coverage elsewhere. We'll likely
see a band of heavier showers in king county due to a puget sound
convergence zone. A winter weather advisory remains in effect for
the west slopes of the cascades where 6-11" of snow is expected
through tonight.

Snow levels will remain low through the weekend with a cool upper
level trough over the region. We may see rain snow mix with the
showers but significant accumulations are not expected. Daytime
max temps will be in the 40s which should limit impacts from any
lowland snow. Showers will taper down on Sunday.

There is another threat of lowland snow late Sunday night and
Monday, but there's still a lot of uncertainty in the details. We
have a classic setup (overrunning event) where snow levels will
remain low (near the surface) while moisture spreads north from a
warm front. What's unknown is how far north the moisture will
reach and how long the duration will be. The latest ECMWF is
wetter compared to the GFS for a wide range of snow totals.

Nonetheless, we may see more winter weather impacts in the CWA and
will continue to monitor how this system evolves. 33

Long term Tuesday through Friday Showers will continue
through the rest of the week as an upper level trough stalls
offshore then shifts inland. Guidance shows we will remain a few
degrees below normal through the period. Snow levels will be
higher, mostly in the 1,000-2,000 ft range, for rain in the
lowlands. We may see a break in the action toward the end of the
week as a ridge builds in. 33

Aviation Northwesterly flow aloft will persist briefly in the
wake of a cold front, before shifting back to the west during the
overnight hours. Ceilings have already improved for terminals
along the coast and are expected to improve for puget sound
terminals around 00-04z as the band of heavier precipitation
continues to move southeastward out of the area. Ceilings could
becomeVFR behind the frontal passage, however are expected to
become MVFR again overnight as a moist post- frontal air mass
remains in place and surface gradients weaken.

Ksea... Current radar imagery has indicated that rain has tapered
off at the terminal over the last hour. Current ifr ceilings are
expected to lift in the wake of the frontal passage, with MVFR
ceilings remaining possible as the airmass remains moist. Surface
winds have shifted to the southwest and will continue to ease
into the overnight hours. 14

Marine Small craft northwesterlies will persist along the
coastal waters in the wake of a cold frontal passage. Winds have
shifted to the west in the strait and increased to near gale-
speeds for areas along the central and eastern strait. A weak
surface low will move south to the oregon coast by Sunday morning.

Northeasterly offshore flow will redevelop late Saturday night
and continue through Tuesday with high pressure over british
columbia and lower pressure to the south of washington. 14

Hydrology River flooding is not expected for the next 7 days.

Sew watches warnings advisories
Wa... Winter weather advisory until 6 am pst Saturday for cascades of
pierce and lewis counties-cascades of snohomish and king
counties-cascades of whatcom and skagit counties.

Pz... Small craft advisory until 4 am pst Saturday 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 for rough bar until 9 am pst Saturday for
grays harbor bar.

Gale warning until midnight pst tonight for central u.S. Waters
strait of juan de fuca-east entrance u.S. Waters strait of
juan de fuca.

Small craft advisory until 6 pm pst this evening for northern
inland waters including the san juan islands.

Small craft advisory until midnight pst tonight for admiralty
inlet-puget sound and hood canal-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
SISW1 - Smith Island, WA 0 mi51 min W 21 G 25 45°F 1013.5 hPa (+1.7)35°F
PTWW1 - 9444900 - Port Townsend, WA 15 mi41 min SE 13 G 15 1014.9 hPa (+1.4)
46088 - New Dungeness, WA (Hein Bank) 18 mi51 min W 19 G 23 44°F 46°F3 ft1012.7 hPa (+1.8)36°F
FRDW1 - 9449880 - Friday Harbor, WA 18 mi65 min E 4.1 G 5.1 42°F 46°F1013.3 hPa
PBFW1 - Padilla Bay Reserve, WA 22 mi71 min SE 5.1 37°F 1013 hPa36°F
46118 31 mi46 min SSW 12 40°F 1012.7 hPa37°F
PTAW1 - 9444090 - Port Angeles, WA 35 mi65 min WNW 6 G 8.9 43°F 47°F1013.5 hPa
CHYW1 - 9449424 - Cherry Point, WA 38 mi41 min 1013.4 hPa (+1.5)
CPMW1 38 mi41 min ESE 4.1 G 6
46120 45 mi47 min NE 5.8 41°F 1013.9 hPa37°F

Wind History for Port Townsend, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Whidbey Island Naval Air Station - Ault Field, WA10 mi1.8 hrsN 310.00 miMostly Cloudy43°F35°F74%1014.1 hPa
Friday Harbor Airport, WA17 mi48 minESE 610.00 miOvercast41°F35°F79%1013.7 hPa
Burlington/Mount Vernon, Skagit Regional Airport, WA24 mi66 minE 410.00 miOvercast37°F37°F100%1013.9 hPa

Wind History from NUW (wind in knots)
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Last 24hrE3E4SE5SE6SE6E6E8E8E7E9E9SE11SE18
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S10S12S14W16W18
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N3
1 day agoCalmN5N6E5S4NE6SE6E3CalmCalmNE3NE6CalmE5E5W3W5W5NW5W4NW5--NW3Calm
2 days ago--NW13N10N7N5NE8N7NW9NW12NW10N3NW8NE4SE33N55N8N10N8NW9N8NW7NW9

Tide / Current Tables for Smith Island, Washington
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Smith Island
Click for Map
Fri -- 06:25 AM PST     7.90 feet High Tide
Fri -- 07:06 AM PST     Sunrise
Fri -- 09:01 AM PST     Moonset
Fri -- 11:51 AM PST     2.53 feet Low Tide
Fri -- 05:44 PM PST     Sunset
Fri -- 06:12 PM PST     6.45 feet High Tide
Fri -- 09:58 PM PST     Moonrise
Fri -- 11:47 PM PST     1.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.41.42.74.35.87.17.87.76.85.23.82.82.52.93.54.45.36.16.46.25.33.82.41.4

Tide / Current Tables for Smith Island, 1.4 miles SSW of, Washington Current
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Smith Island
Click for MapFlood direction 90 true
Ebb direction 280 true

Fri -- 01:13 AM PST     0.01 knots Slack
Fri -- 04:20 AM PST     1.15 knots Max Flood
Fri -- 07:06 AM PST     Sunrise
Fri -- 07:45 AM PST     -0.00 knots Slack
Fri -- 09:01 AM PST     Moonset
Fri -- 11:04 AM PST     -1.36 knots Max Ebb
Fri -- 02:07 PM PST     0.01 knots Slack
Fri -- 04:47 PM PST     0.77 knots Max Flood
Fri -- 05:44 PM PST     Sunset
Fri -- 07:47 PM PST     -0.01 knots Slack
Fri -- 09:58 PM PST     Moonrise
Fri -- 11:10 PM PST     -1.23 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.9-0.20.50.91.11.10.80.4-0.1-0.7-1.2-1.4-1.2-0.7-0.10.40.70.80.60.3-0.1-0.6-1-1.2

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 (22,6,7,8)
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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.