Thursday, April18, 2019 L-36.com


Marine Weather and Tides
Redmond, 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 6:11AMSunset 8:03PM Thursday April 18, 2019 11:18 AM PDT (18:18 UTC) Moonrise 6:17PMMoonset 5:21AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 900 Am Pdt Thu Apr 18 2019
.small craft advisory in effect from noon today to 8 pm pdt this evening...
Today..S wind 10 to 20 kt rising to 15 to 25 kt in the afternoon. Wind waves 1 to 4 ft. Rain likely in the morning then a chance of rain in the afternoon.
Tonight..S wind 15 to 25 kt easing to 5 to 15 kt after midnight. Wind waves 2 to 4 ft subsiding to 2 ft or less. Rain likely in the evening then a chance of rain after midnight.
Fri..S wind 5 to 15 kt becoming variable in the afternoon. Wind waves 2 ft or less. Rain likely in the morning then showers likely in the afternoon.
Fri night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..N wind 10 to 20 kt becoming 5 to 15 kt in the afternoon. Wind waves 1 to 3 ft.
Sat night..N wind 5 to 15 kt becoming ne after midnight. Wind waves 2 ft or less.
Sun..Light wind becoming sw to 10 kt. Wind waves 1 ft or less.
Mon..S wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 900 Am Pdt Thu Apr 18 2019
Synopsis for the northern and central washington coastal and inland waters..A front will reach the area today and move inland tonight and Friday, with onshore flow developing behind the front. Onshore flow will continue Saturday and Sunday with high pressure offshore and lower pressure inland. Another frontal system will reach the area on Monday.


7 Day Forecast for Marine Location Near Redmond, WA
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location: 47.68, -122.1     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 181545
afdsew
area forecast discussion
national weather service seattle wa
845 am pdt Thu apr 18 2019

Synopsis A front will approach the area today and move through
western washington tonight into Friday morning. An upper level
ridge will build offshore giving the area dry weather over the
weekend. Frontal systems will brush by the area Monday and Tuesday
before a weakening front finally makes it into western washington
on Wednesday.

Update this morning Forecast largely on track this morning
with only minor tweaks to precipitation chances and amounts for
near-term. Rain continues along the north coast and east of the
sound with amounts so far ranging from a few hundredths to two to
three tenths across higher terrain. Steadier, more widespread rain
still on track for tonight into early Friday as front moves
onshore. Previous discussion follows. Ceo

Short term today through Saturday Satellite imagery shows
cloudy skies over western washington early this morning. Doppler
radar has light rain along the coast and from about the
king snohomish county line northward. With the cloud cover
temperatures were in a narrow range, upper 40s to mid 50s.

Frontal system offshore early this morning will have a hard time
moving inland today with the parent low associated with the front
moving northward into the alaska panhandle. This will lift the
front north as well. In addition, the west northwesterly flow
aloft will result in a rain shadow for the central puget sound.

Will lower the pops from seattle south today down to chance but
keep likely pops for very light rain over the northern portion of
the area. With the front lifting north western washington will be
in the warm sector. Lots of cloud cover from seattle north will
prevent temperatures from warming up much this afternoon but south
of seattle with some breaks in the cloud cover expect highs to
warm into the mid 60s with highs near 70 possible in lewis
county. North of seattle expect highs near 60.

Front makes some eastward progress tonight with the front moving
through western washington early Friday morning. Steady rain will
develop ahead of the front tonight and continue until frontal
passage. Lows tonight will be in the upper 40s to mid 50s.

Post frontal showers later Friday morning with showers continuing
into the afternoon hours as an upper level trough moves into the
area. Convergence zone developing over snohomish county by
afternoon. Highs on Friday mostly in the 50s.

Upper level trough dissipating over western washington quickly
Friday evening. Flow aloft becoming northwesterly which could push
the convergence zone down into the metro area before the zone
falls apart Friday evening. With some breaks in the cloud cover
overnight lows over the southwest interior will drop into the mid
and upper 30s. Lows in the 40s for most of the rest of the area.

Upper level ridge building offshore on Saturday with the surface
gradients becoming northwesterly. This combination will dry out
the lower levels of the air mass. Light flow early in the day will
keep some morning cloud cover around but by afternoon plenty of
sunshine expected across western washington with highs in the
upper 50s and 60s. Felton

Long term Sunday through Wednesday Extended models in good
agreement with a flat upper level ridge over the area on easter
Sunday for another dry and sunny day. Highs will be mostly in the
60s.

Models also in good agreement in slowing down the system that was
timed into the area on Monday. Want to see a few more model runs
before totally drying out the forecast for Monday. Will go drier
Sunday night and lower the pops into the chance category on
Monday. Highs will be in the upper 50s to mid 60s.

Model solutions for Tuesday and Wednesday having some
consistency issues with the strength and timing of the next front.

The GFS is stronger, wetter and faster than the ECMWF solution.

Both models have the front moving over the top of an upper level
ridge. With the model inconsistencies on timing and the ridge in
the vicinity will just go with a broad brush chance pops forecast
for Tuesday and Wednesday. Highs mostly near 60. Felton

Aviation A frontal system will move through the area today and
tonight with west to southwest flow aloft. The air mass is moist and
stable. At the surface, moderate southerly flow will become moderate
onshore tonight.

Ceilings are generally goodVFR this morning. Ceilings will lower
during the day today but much of the interior will likely stayVFR
until late afternoon or evening. MVFR low clouds with pockets of ifr
are expected tonight.

Ksea... Discussion above applies. The terminal will be somewhat rain-
shadowed in westerly flow aloft. Ceilings should lower tonight as
the front pushes through. Southerly wind 5-10 knots. Chb

Marine A frontal system will move through the area today and
tonight, with onshore flow developing behind the front on Friday.

Advisory level winds are likely over most waters today into this
evening. Gale force west winds are possible in the strait Friday
evening and a gale watch is now in effect there. Onshore flow will
continue Saturday and Sunday. Another frontal system will reach the
area on Monday. Chb

Hydrology Rivers coming out of the north and central cascades
will rise significantly later today through Friday but are
expected to remain below flood stage. River flooding not expected
across the area for the next 7 days. Jbb

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 8 pm pdt this evening 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.

Gale watch from Friday afternoon through late Friday night 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 pm pdt this afternoon for admiralty
inlet-east entrance u.S. Waters strait of juan de fuca-
northern inland waters including the san juan islands.

Small craft advisory from noon today to 8 pm pdt this evening
for 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
46120 17 mi35 min S 5.8 55°F 1022.7 hPa48°F
WPOW1 - West Point, WA 18 mi78 min SSE 9.9 G 9.9 54°F 1024 hPa (-0.3)48°F
46125 32 mi33 min 18 53°F 1021.9 hPa49°F
TCMW1 - 9446482 - Tacoma Met, WA 33 mi36 min ENE 1.9 G 1.9
TCNW1 - 9446484 - Tacoma, WA 33 mi36 min 56°F 49°F1024.1 hPa
46121 43 mi38 min 52°F 1024.2 hPa51°F
PTWW1 - 9444900 - Port Townsend, WA 46 mi36 min E 14 G 17 53°F 49°F1023 hPa

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Renton Municipal Airport, WA14 mi25 minSSE 510.00 miOvercast58°F48°F72%1024.1 hPa
Boeing Field - King County International Airport, WA15 mi25 minSE 610.00 miOvercast58°F48°F70%1023.6 hPa
Everett Snohomish County, WA19 mi25 minSE 810.00 miMostly Cloudy53°F46°F80%1023.6 hPa
Seattle, Seattle-Tacoma International Airport, WA20 mi25 minS 510.00 miMostly Cloudy57°F50°F78%1024.3 hPa

Wind History from RNT (wind in knots)
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Last 24hrS8S9S9S8S8SW8SW8S5CalmSW4S3S3E3CalmS4E3CalmS3CalmCalmSE3Calm4S5
1 day agoSW6S7S7S743CalmCalmSE3SE3SE6SE5S6E3SE53SE4SE7S6SE5SE8SE6SE10S8
2 days agoNW8NW7NW9NW10NW11NW10NW7NW8NW7W3SW4S3CalmCalmCalmCalmSE3CalmCalmSE4SE3S7S6S3

Tide / Current Tables for Seattle, Washington
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Seattle
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Thu -- 04:44 AM PDT     12.02 feet High Tide
Thu -- 06:15 AM PDT     Sunrise
Thu -- 06:21 AM PDT     Moonset
Thu -- 11:08 AM PDT     1.06 feet Low Tide
Thu -- 05:22 PM PDT     10.75 feet High Tide
Thu -- 07:18 PM PDT     Moonrise
Thu -- 08:03 PM PDT     Sunset
Thu -- 11:13 PM PDT     2.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.25.47.910.211.71211.19.36.741.91.11.53.15.47.89.710.710.59.47.55.23.32.4

Tide / Current Tables for Alki Point, 0.3 miles W of, Washington Current
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Alki Point
Click for Map
Thu -- 01:28 AM PDT     0.69 knots Max Flood
Thu -- 04:42 AM PDT     -0.01 knots Slack
Thu -- 06:15 AM PDT     Sunrise
Thu -- 06:22 AM PDT     Moonset
Thu -- 07:51 AM PDT     -0.72 knots Max Ebb
Thu -- 11:27 AM PDT     0.00 knots Slack
Thu -- 02:06 PM PDT     0.73 knots Max Flood
Thu -- 05:28 PM PDT     -0.00 knots Slack
Thu -- 07:18 PM PDT     Moonrise
Thu -- 08:03 PM PDT     Sunset
Thu -- 08:17 PM PDT     -0.60 knots Max Ebb
Thu -- 11:39 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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0.50.70.70.50.2-0.1-0.4-0.7-0.7-0.6-0.4-0.10.20.60.70.70.50.2-0.2-0.4-0.6-0.6-0.4-0.2

Weather Map and Satellite Images
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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 (14,3,4,5)
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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.