Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
Rocky Point, WA

Version 3.4
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7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:13AMSunset 8:14PM Wednesday August 21, 2019 6:13 PM PDT (01:13 UTC) Moonrise 10:08PMMoonset 11:20AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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- 256 Pm Pdt Wed Aug 21 2019
Tonight..N wind 5 to 15 kt becoming S to 10 kt after midnight. Wind waves 2 ft or less. A chance of showers.
Thu..NW wind to 10 kt becoming N in the afternoon. Wind waves 1 ft or less.
Thu night..NE wind 5 to 15 kt. Wind waves 2 ft or less.
Fri..N wind to 10 kt rising to 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Fri night..N wind 5 to 15 kt becoming variable to 10 kt after midnight. Wind waves 2 ft or less.
Sat..S wind to 10 kt becoming sw 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Sat night..NW wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Sun..Light wind becoming N to 10 kt. Wind waves 1 ft or less.
Mon..N wind to 10 kt rising to 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 256 Pm Pdt Wed Aug 21 2019
Synopsis for the northern and central washington coastal and inland waters..A weakening front will continue to move across the area this evening. Onshore flow will develop behind the front tonight and continue through the weekend. A weaker frontal system will approach the area on Friday and dissipate over the area on Saturday.


7 Day Forecast for Marine Location Near Rocky Point, WA
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location: 47.6, -122.67     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 212224
afdsew
area forecast discussion
national weather service seattle wa
324 pm pdt Wed aug 21 2019

Synopsis Showers around into tonight with the possible
development of a convergence zone. Dry weather by Thursday
afternoon as weak high pressure builds into the area. A series of
systems will pass generally to our north Friday into the weekend
with temperatures near normal and bringing a chance for showers
mainly to the coast and northern areas. Warmer and drier
conditions are expected to develop early next week.

Short term tonight through Saturday A few spotty showers
around this afternoon with the passage of today's weather system.

Rainfall amounts over the past 24 hours around a half an inch
along the coast with amounts around or just over one inch over
portions of the olympics. Lighter amounts across puget sound
generally up to a quarter of an inch. Additional showers are
possible with the development of a convergence zone over king and
snohomish counties this evening into tonight. Dry weather expected
by Thursday afternoon as an upper level ridge builds back into
the pacific northwest. Morning clouds on Thursday with some
afternoon sunshine expected. Temperatures will be a few degrees
warmer on Thursday with highs in the upper 60s to mid 70s.

The upper level ridge will flatten by Friday as the next system
passes to the north of the area. There will be a slight chance of
showers along the northern tier Friday morning, but most of the
area will be dry. Another system will slide through Saturday with
at least another slight chance of showers in spots across western
washington. More clouds than Sun on Friday with some sunshine by
Saturday afternoon. Temperatures into the weekend will be in the
upper 60s to mid 70s across the area. Jd

Long term Sunday through Wednesday Upper level troughing will
slide east Sunday with generally dry weather expected aside from
a shower possible along the northern tier. Guidance is fairly
consistent in suggesting a rather high amplitude upper level
ridge then builds over the pacific northwest into Monday. 500mb
heights are modeled to be well into the 580s Tuesday and through
the week. A thermal trough may also develop along the coast with
low level flow turning offshore. It is still several days out but
we may be looking at least a few very warm days to close out
august. Dry weather expected as well with the upper level ridge
over the area. Jd

Aviation An upper level trough will continue to push through the
area through Thursday morning, carrying with it a surface cold
front. Widespread rain has been prominent across the TAF sites
through much of the day, and although activity is expected to
continue into the evening hours, it will gradually taper. A
convergence zone will then likely develop across the northern
sound vicinity into king and snohomish counties this evening and
carry into a portion of the overnight hours. CIGS this afternoon
have largely been MVFR, with a few periods of ifr noted. The
general trend through the evening and overnight hours will be for
MVFR conditions, though some sites may drop to ifr early Thursday
morning. As the convergence zone fades early Thursday morning
there could also be some drizzle in spots. Should see some
clearing and gradual cig improvements thru the day Thursday. Winds
will continue to be breeziest 10-15kts from kpae to kbli
through the evening and gradually taper into the overnight hours.

Elsewhere S SW under 10kts.

Ksea... MVFR ceilings will largely be the rule through Thursday
morning, though there will be potential for a period or two of ifr
conditions, mainly early Thursday. Tapering showers will likely give
way to the development of a convergence zone this evening into much
of the overnight hours. Showers drizzle likely with this before
gradual improvement back toVFR Thursday afternoon. Winds S SW 5-
10kts.

Kovacik

Marine A robust closed area of low pressure will continue
to dampen as it moves east across bc this evening and overnight
tonight. Associated surface cold front will continue to push east
across washington tonight, continuing to carry with it the chance
for rain. As of this afternoon, much of the widespread rain has
diminished, with scattered showers continuing across the waters this
evening and overnight. This activity will gradually diminish but
will give way to a puget sound convergence zone later this evening.

Some showers and perhaps some drizzle will be possible in its
vicinity through Thursday morning.

A small craft advisory will continue for the outer coastal waters
for NW winds behind the frontal boundary of 15-25 knots. In addition
to the winds, a W NW swell of 10-11 feet is expected thru Thursday
afternoon. A small craft advisory is also currently in place for the
eastern strait and northern inland waters for breezy southerly winds
of 15-25 knots ahead of the front. This small craft advisory will
remain in place after the front passes thru this evening as winds
turn to the W NW and remain 15-25 knots. In addition, with the
breezy westerlies, small craft conditions are expected in the
central strait and also for a few hours across admiralty inlet. All
winds waters should calm down below advisory levels by Thursday
afternoon, though typical westerly push down the strait will likely
result in another round of small craft headlines Thursday evening
and overnight.

Onshore flow is expected to continue through the remainder of the
work week and through the weekend.

Kovacik

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

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 11 am pdt Thursday 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 until 5 am pdt Thursday for east entrance
u.S. Waters strait of juan de fuca.

Small craft advisory until 8 am pdt Thursday for northern inland
waters including the san juan islands.

Small craft advisory until 5 am pdt Thursday for central u.S.

Waters strait of juan de fuca.

Small craft advisory from 8 pm this evening to 2 am pdt Thursday
for admiralty inlet.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 13 mi73 min SSE 8 G 8.9 63°F 1014.6 hPa (-0.6)62°F
46120 18 mi47 min Calm 61°F 1013.6 hPa59°F
46121 22 mi52 min 64°F 1014.5 hPa63°F
TCMW1 - 9446482 - Tacoma Met, WA 26 mi73 min N 4.1 G 4.1
TCNW1 - 9446484 - Tacoma, WA 27 mi73 min 66°F 56°F1014.6 hPa (-1.0)
PTWW1 - 9444900 - Port Townsend, WA 36 mi73 min S 2.9 G 4.1 59°F 54°F1015.7 hPa (-0.0)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bremerton, Bremerton National Airport, WA10 mi77 minVar 510.00 miOvercast65°F61°F87%1016.1 hPa
Boeing Field - King County International Airport, WA20 mi80 minN 05.00 miLight Rain66°F61°F84%1014.7 hPa
Seattle, Seattle-Tacoma International Airport, WA22 mi80 minWNW 41.75 miLight Rain Fog/Mist64°F62°F93%1015.5 hPa
Tacoma, Tacoma Narrows Airport, WA23 mi80 minSW 35.00 miFog/Mist64°F64°F100%1014.6 hPa

Link to 5 minute data for KPWT

Wind History from PWT (wind in knots)
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Last 24hrSW11SW18
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------------SW7SW6S6----SW8SW8S8SW11SW10SW11S9S9
G16
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1 day agoNE9N6------NE6NE6NE3Calm--CalmCalmCalmCalmCalmCalm35SW9SW8--SW15
G18
SW11SW11
2 days agoSW7SW6----NE5--Calm----CalmS3CalmCalmCalmE3CalmCalmW3SW3--6NE8NE7E8

Tide / Current Tables for Tracyton, Dyes Inlet, Washington
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Tracyton
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Wed -- 04:26 AM PDT     2.74 feet Low Tide
Wed -- 06:14 AM PDT     Sunrise
Wed -- 09:59 AM PDT     9.14 feet High Tide
Wed -- 12:19 PM PDT     Moonset
Wed -- 04:12 PM PDT     3.53 feet Low Tide
Wed -- 08:12 PM PDT     Sunset
Wed -- 10:03 PM PDT     11.17 feet High Tide
Wed -- 11:07 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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9.17.35.33.72.82.945.77.48.79.18.87.96.65.34.13.63.95.37.29.110.611.210.8

Tide / Current Tables for Blake Island, SW of, Washington Current
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Blake Island
Click for Map
Wed -- 12:26 AM PDT     -0.50 knots Max Ebb
Wed -- 01:53 AM PDT     0.00 knots Slack
Wed -- 04:29 AM PDT     0.19 knots Max Flood
Wed -- 06:14 AM PDT     Sunrise
Wed -- 08:21 AM PDT     -0.00 knots Slack
Wed -- 12:19 PM PDT     Moonset
Wed -- 12:32 PM PDT     -0.35 knots Max Ebb
Wed -- 01:23 PM PDT     0.00 knots Slack
Wed -- 04:22 PM PDT     0.24 knots Max Flood
Wed -- 08:12 PM PDT     Sunset
Wed -- 08:26 PM PDT     -0.00 knots Slack
Wed -- 11:07 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.5-0.400.10.20.20.20.10-0.1-0.2-0.3-0.3-0.20.10.20.20.20.20.10-0.1-0.2-0.4

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 (21,6,7,8)
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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.