Friday, July19, 2019 L-36.com


Marine Weather and Tides
SeaTac, WA

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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 5:30AMSunset 9:00PM Friday July 19, 2019 3:18 AM PDT (10:18 UTC) Moonrise 9:50PMMoonset 7:10AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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- 257 Am Pdt Fri Jul 19 2019
Today..Light wind. Wind waves less than 1 ft. A slight chance of showers in the morning.
Tonight..NE wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..N wind to 10 kt rising to 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Sat night..N wind 5 to 15 kt easing to 10 kt after midnight. Wind waves 2 ft or less.
Sun..N wind to 10 kt rising to 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Sun night..N wind 5 to 15 kt becoming nw after midnight. Wind waves 2 ft or less.
Mon..Light wind becoming nw to 10 kt. Wind waves 1 ft or less.
Tue..Light wind becoming nw to 10 kt. Wind waves 1 ft or less.
PZZ100 257 Am Pdt Fri Jul 19 2019
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will gradually ease and turn more northerly today through the weekend. Small craft advisory level winds will still be possible in the central and eastern strait again today. Onshore flow will increase again early next week.


7 Day Forecast for Marine Location Near SeaTac, WA
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location: 47.42, -122.28     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 182136
afdsew
area forecast discussion
national weather service seattle wa
236 pm pdt Thu jul 18 2019

Synopsis A few showers will linger into early Friday as a
system departs. Drying and warming trend over the weekend as high
pressure builds into the area. Dry weather continuing for the
first part of next week.

Short term today through Saturday A mix of Sun and clouds
across the area this afternoon with temperatures running several
degrees warmer than this time yesterday. Shower coverage has been
fairly limited since this morning but another convergence zone
band has formed across the sound into southern snohomish northern
king counties this afternoon. Outside of this band which may
continue and wobble through early Friday, shower coverage will be
highly scattered and mainly from seattle northward.

Upper level trough will slowly move off to the east on Friday. A
few lingering showers will come to an end by the afternoon with
more sunshine expected. Highs should be a few degrees warmer than
today. Flow becomes more zonal by Saturday as four corners high
attempts to build back to the northwest and troughing continues
offshore. This will allow for a warming and drying trend into the
weekend with highs on Saturday reaching the mid 70s to low 80s
with abundant sunshine. Ceo

Long term Sunday through Wednesday High pressure will remain
in control on Sunday into Monday with dry weather and afternoon
highs in the mid 70s to low 80s. Trough then approaches the coast
and moves onshore sometimes in the late Tuesday into Wednesday
timeframe. Model solutions still disagree with timing and strength
of said trough with poor run-to-run consistency. This may bring a
chance of showers, mainly to the coast and mountains. For now
have added showers to the coast with a dry forecast elsewhere.

Cooler temperatures and cloud cover will prevail as system moves
through the area. Ceo
aviation... Westerly flow aloft will transition more northwesterly
later tonight into Friday with an upper level trough over the pac
nw.VFR CIGS with a few spots of MVFR this afternoon with mid-level
clouds around. Development of a pscz this afternoon with lower cigs
possible across portions of snohomish and king counties into
tonight. Some showers around this area as well with drier weather
for Friday.VFR CIGS elsewhere with some areas of MVFR by early
Friday morning. Winds 5 to 12 knots with a few gusts up to 25 knots
along the strait of juan de fuca. Winds generally southwesterly
becoming northerly in spots later tonight across the area.

Ksea...VFR CIGS through most of tonight with mid level clouds
around. Pcsz should be north of the site though slight possibility
of a shower into tonight. CIGS should beVFR Friday morning though
MVFR is possible withVFR during the afternoon. Winds generally
southwesterly becoming northerly early tonight. Winds generally 5 to
12 knots. Jd

Marine Small craft advisory upgraded to a gale warning for the
central and eastern portions of the strait of juan de fuca this
afternoon through tonight. Small craft advisories for the northern
inland waters and admiralty inlet. Onshore flow will ease on Friday
with advisory level westerlies through the weekend across the
central and eastern strait of juan de fuca for later in the
afternoon and evening hours. Jd

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...

gale warning until 5 am pdt Friday for central u.S. Waters
strait of juan de fuca-east entrance u.S. Waters strait of juan de
fuca.

Small craft advisory until 5 am pdt Friday for admiralty inlet-
northern inland waters including the san juan islands.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 12 mi48 min E 2.9 G 8
TCNW1 - 9446484 - Tacoma, WA 13 mi48 min 59°F 55°F1018.6 hPa
WPOW1 - West Point, WA 19 mi78 min NE 1.9 G 2.9 55°F 1018.5 hPa (+0.3)52°F
46120 24 mi34 min SE 1.9 56°F 1017.4 hPa52°F
46121 26 mi36 min 59°F 1018.4 hPa53°F
46123 39 mi184 min 66°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Seattle, Seattle-Tacoma International Airport, WA2 mi25 minN 010.00 miMostly Cloudy56°F51°F84%1019 hPa
Renton Municipal Airport, WA6 mi25 minN 03.00 miFog/Mist57°F54°F90%1018.8 hPa
Boeing Field - King County International Airport, WA8 mi25 minN 010.00 miOvercast57°F51°F81%1018.3 hPa
Tacoma, Tacoma Narrows Airport, WA19 mi25 minN 010.00 miMostly Cloudy57°F46°F69%1018.5 hPa
Tacoma / McChord Air Force Base, WA21 mi80 minS 610.00 miMostly Cloudy57°F54°F90%1018.6 hPa
Pierce County-Thun Field, WA22 mi43 minN 010.00 miOvercast57°F53°F88%1018.6 hPa

Wind History from SEA (wind in knots)
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Last 24hrNE6E6SE10SE8SE6SE8SE10SW9SW7SW76SW8SW5CalmN8NE10N8NE11NE15NE12NE6E5E5Calm
1 day agoS11S8S9S12S10S11S12S10S13
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2 days agoCalmCalmCalmNW3CalmSW55NW6SW65W7SW7S8CalmSW5S11SW10SW9SW9SW11SW12SW12S10S10

Tide / Current Tables for Des Moines, Washington
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Des Moines
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Fri -- 01:39 AM PDT     6.43 feet Low Tide
Fri -- 05:31 AM PDT     Sunrise
Fri -- 06:17 AM PDT     9.77 feet High Tide
Fri -- 08:10 AM PDT     Moonset
Fri -- 01:22 PM PDT     -0.96 feet Low Tide
Fri -- 08:42 PM PDT     12.06 feet High Tide
Fri -- 08:58 PM PDT     Sunset
Fri -- 10:49 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.66.66.57.18.19.19.79.68.66.94.72.30.2-0.9-0.70.73.15.98.610.611.81211.310

Tide / Current Tables for Skagit Bay, 1 mile N of Rocky Point, Washington Current
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Skagit Bay
Click for Map
Fri -- 01:07 AM PDT     -0.84 knots Max Ebb
Fri -- 03:10 AM PDT     0.00 knots Slack
Fri -- 05:32 AM PDT     Sunrise
Fri -- 05:34 AM PDT     0.18 knots Max Flood
Fri -- 06:05 AM PDT     -0.00 knots Slack
Fri -- 08:11 AM PDT     Moonset
Fri -- 12:20 PM PDT     -1.20 knots Max Ebb
Fri -- 02:12 PM PDT     0.01 knots Slack
Fri -- 06:19 PM PDT     1.00 knots Max Flood
Fri -- 08:45 PM PDT     -0.00 knots Slack
Fri -- 08:59 PM PDT     Sunset
Fri -- 10:50 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.8-0.8-0.6-0.10.10.20.1-0.2-0.4-0.7-0.9-1.1-1.2-1-0.20.30.60.910.90.5-0.1-0.3-0.6

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 (6,6,7,8)
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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.