Wednesday, April24, 2019 L-36.com


Marine Weather and Tides
Kirkland, 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 6:01AMSunset 8:12PM Wednesday April 24, 2019 1:02 AM PDT (08:02 UTC) Moonrise 12:07AMMoonset 8:53AM Illumination 77% Phase: Waning Gibbous; Moon at 20 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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PZZ135 Puget Sound And Hood Canal- 819 Pm Pdt Tue Apr 23 2019
.small craft advisory in effect until 2 am pdt Wednesday...
Tonight..NW wind 15 to 25 kt in the north part. SW wind 15 to 25 kt in the south part. Wind easing to variable 5 to 15 kt all areas after midnight. Wind waves 2 to 4 ft subsiding to 1 or 2 ft. A chance of showers in the evening.
Wed..N wind 5 to 15 kt becoming 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft.
Wed night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Thu..N wind 10 to 20 kt becoming 5 to 15 kt in the afternoon. Wind waves 1 to 3 ft.
Thu night..NE wind to 10 kt becoming nw after midnight. Wind waves 1 ft or less.
Fri..Light wind becoming variable 5 to 15 kt in the afternoon. Wind waves 1 ft or less.
Fri night..NW wind 5 to 15 kt becoming sw after midnight. Wind waves 2 ft or less.
Sat..SW wind to 10 kt becoming nw. Wind waves 1 ft or less.
Sun..N wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 819 Pm Pdt Tue Apr 23 2019
Synopsis for the northern and central washington coastal and inland waters..Strong onshore flow will ease overnight. Weak high pressure will be over the area Wednesday into Thursday. Onshore flow will increase by the weekend as an upper trough reaches the area.


7 Day Forecast for Marine Location Near Kirkland, WA
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location: 47.68, -122.2     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 240314
afdsew
area forecast discussion
national weather service seattle wa
815 pm pdt Tue apr 23 2019

Synopsis Onshore flow will decrease overnight and high pressure
will build toward the area. A weak ridge will keep the weather dry
Wednesday and Thursday. An upper trough will bring a chance of
showers and cooler weather to the region by the weekend.

Short term tonight through Friday Clouds are mainly in the
convergence zone this evening and along the west slopes of the
cascades. Skies are starting to clear elsewhere. After areas of
morning clouds--skies should be partly to mostly sunny by midday
Wednesday. A broad and progressive upper ridge will give low level
northerly flow to the area as well as drying on Wednesday. Highs
will be mainly in the upper 50s to mid 60s.

A broad and weak upper trough will approach the area from the west
on Thursday. A rather thick layer of moisture in the mid and upper
levels will bring increasing clouds to the area through the day,
then some lower clouds will spread inland during the evening hours
as low level flow becomes onshore ahead of the incoming trough.

Despite the cloud cover, expect highs to be in the 60s. Despite
the increase in moisture aloft, expect it to remain dry.

The broad trough with increasing flow aloft will give partly to
mostly cloudy skies to the region on Friday along with an
increase in onshore flow and a chance to slight chance of showers
(mainly to the cascades and northern portions of the area).

Onshore flow will result in daytime temperatures falling a few
degrees, back to around the 60 degree mark.

Long term Saturday through Tuesday Troughing will dominate
conditions over the weekend. Models continue to show mainly only
chance pops with partly to mostly cloudy conditions across the
region. Snow levels will be low, as low as 3000 ft or so at times,
so some snow showers may be seen in even the lower passes.

Precipitation amounts appear that they will be rather light, so
no significant impacts are expected at this time.

Models generally agree that the early week period will be
dominated by a weak trough that will provide partly to mostly
cloudy conditions with a chance of showers and temperatures near
normal for late april. While models do show a good deal of
consistency today, their continuity with previous solutions is
not good. Forecasts represent a blend of the ECMWF with the
national blend of models. Albrecht

Aviation Clouds are mainly in the convergence zone area and into
the cascades this evening, with clearing skies outside of the zone.

On Wednesday skies should be mostly sunny after areas of morning
clouds, with just some scattered fair weather cumulus and maybe a
little cirrus.

Ksea... There are clouds in the convergence zone and that will
continue through the night. Skies will scatter out Wednesday,
perhaps not at 18z but that is the forecast for now.

Marine Strong onshore flow will ease overnight and then winds
will be more northerly Wednesday. Marine air will push back into the
area Thursday and then an upper trough will move toward the area
late in the week--for strengthening onshore flow.

Hydrology The daily hydrology discussion has ended until the
start of the next rainy season; it will be updated as needed until
then.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory from 8 pm this evening to 8 am pdt
Wednesday for coastal waters from CAPE flattery to james
island 10 to 60 nm-coastal waters from james island to
point grenville 10 to 60 nm-coastal waters from point
grenville to CAPE shoalwater 10 to 60 nm.

Small craft advisory from 8 pm this evening to 5 am pdt
Wednesday for coastal waters from CAPE flattery to james
island out 10 nm-coastal waters from james island to point
grenville out 10 nm-coastal waters from point grenville to
cape shoalwater out 10 nm.

Gale warning until 3 am pdt Wednesday for central u.S. Waters
strait of juan de fuca-east entrance u.S. Waters strait of
juan de fuca.

Small craft advisory until 3 am pdt Wednesday for northern
inland waters including the san juan islands.

Small craft advisory until 5 am pdt Wednesday for admiralty
inlet.

Small craft advisory from 8 pm this evening to 2 am pdt
Wednesday for puget sound and hood canal.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46120 12 mi33 min ENE 1.9 48°F 1024.1 hPa39°F
WPOW1 - West Point, WA 13 mi62 min NNE 11 G 12 49°F 1024.9 hPa (+1.2)40°F
46125 28 mi38 min 1.9 48°F 1024.1 hPa42°F
TCMW1 - 9446482 - Tacoma Met, WA 30 mi50 min W 4.1 G 5.1
TCNW1 - 9446484 - Tacoma, WA 31 mi50 min 50°F 49°F1025.2 hPa
46121 39 mi42 min 47°F 1024.8 hPa41°F
PTWW1 - 9444900 - Port Townsend, WA 42 mi50 min SW 8 G 11 48°F 49°F1025.3 hPa

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boeing Field - King County International Airport, WA12 mi69 minENE 310.00 miOvercast51°F39°F64%1024.8 hPa
Renton Municipal Airport, WA12 mi69 minNNW 710.00 miOvercast50°F39°F68%1025.1 hPa
Everett Snohomish County, WA16 mi69 minN 010.00 miOvercast46°F37°F73%1024.9 hPa
Seattle, Seattle-Tacoma International Airport, WA18 mi69 minNNE 810.00 miOvercast50°F39°F66%1025.2 hPa

Wind History from RNT (wind in knots)
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Last 24hrS5S6SE5S3S4S5S6S9
G14
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S106W8NW10NW9NW9NW9353N7N4
1 day agoSE3S4SE5SE4SE4SE3SE3E3S5S55S65S7SE6SE4SE5SE4SE5SE5SE4S6SE5E3
2 days agoCalmS3SE4SE3CalmE3SE6SE6S7S5S6SW75S9
G14
S7SW63CalmCalmSW5CalmCalmCalmSE3

Tide / Current Tables for Seattle, Washington
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Seattle
Click for Map
Wed -- 01:07 AM PDT     Moonrise
Wed -- 03:19 AM PDT     6.42 feet Low Tide
Wed -- 06:04 AM PDT     Sunrise
Wed -- 08:15 AM PDT     9.50 feet High Tide
Wed -- 09:53 AM PDT     Moonset
Wed -- 03:22 PM PDT     -0.22 feet Low Tide
Wed -- 08:11 PM PDT     Sunset
Wed -- 11:01 PM PDT     10.89 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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9.78.37.16.56.67.28.199.59.38.36.84.82.70.8-0.1-01.135.37.59.410.510.9

Tide / Current Tables for Alki Point, 0.3 miles W of, Washington Current
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Alki Point
Click for Map
Wed -- 12:32 AM PDT     -0.38 knots Max Ebb
Wed -- 01:08 AM PDT     Moonrise
Wed -- 04:22 AM PDT     0.00 knots Slack
Wed -- 05:48 AM PDT     0.14 knots Max Flood
Wed -- 06:04 AM PDT     Sunrise
Wed -- 07:50 AM PDT     -0.00 knots Slack
Wed -- 09:54 AM PDT     Moonset
Wed -- 11:58 AM PDT     -0.58 knots Max Ebb
Wed -- 03:50 PM PDT     0.00 knots Slack
Wed -- 06:51 PM PDT     0.65 knots Max Flood
Wed -- 08:12 PM PDT     Sunset
Wed -- 10:48 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.4-0.4-0.3-0.2-00.10.10.1-0-0.2-0.4-0.5-0.6-0.5-0.4-0.20.10.40.60.60.60.40.2-0

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 (4,6,7,8)
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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.