Saturday, April29, 2017 L-36.com


Marine Weather and Tides
Chico, WA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:52AMSunset 8:23PM Saturday April 29, 2017 10:37 AM PDT (17:37 UTC) Moonrise 7:48AMMoonset 11:20PM Illumination 14% Phase: Waxing Crescent; Moon at 4 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- 902 Am Pdt Sat Apr 29 2017
.small craft advisory in effect from 1 pm pdt this afternoon through this evening...
Today..S wind to 10 kt rising to 15 to 25 kt late this afternoon. Wind waves 1 ft or less building to 2 to 4 ft late this afternoon. A slight chance of rain in the afternoon.
Tonight..SW wind 15 to 25 kt easing to 10 to 20 kt late this evening. Wind waves 2 to 4 ft. Rain likely in the evening then a chance of showers after midnight.
Sun..SW wind 5 to 15 kt. Wind waves 2 ft or less. A chance of showers.
Sun night..NW wind 10 to 20 kt becoming sw to 10 kt after midnight. Wind waves 1 to 3 ft subsiding to 1 ft or less after midnight.
Mon..S wind to 10 kt becoming variable in the afternoon. Wind waves 1 ft or less.
Mon night..N wind to 10 kt becoming ne after midnight. Wind waves 1 ft or less.
Tue..Light wind becoming sw to 10 kt. Wind waves 1 ft or less.
Wed..S wind to 10 kt becoming nw. Wind waves 1 ft or less.
PZZ100 902 Am Pdt Sat Apr 29 2017
Synopsis for the northern and central washington coastal and inland waters..A front will bring increasing southerly winds to the coastal waters today and to the inland waters this evening. Westerly onshore winds will develop behind the front tonight...strongest in the central and eastern strait. Onshore flow Sunday will become generally light Monday through Wednesday.

7 Day Forecast for Marine Location Near Chico, WA
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location: 47.62, -122.69     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 291629
afdsew
area forecast discussion
national weather service seattle wa
930 am pdt Sat apr 29 2017

Synopsis Rain will develop on the coast this afternoon and spread
inland this evening. Showers will linger Sunday in the cascades and
in a puget sound convergence zone. A weak weather system will brush
the south part of the region on Monday. An upper ridge will likely
keep Tuesday through Thursday dry. A weak front may arrive Friday.

Short term High clouds are increasing this morning as a front
moves toward the coast. Radar indicates light rain may be falling on
the north coast already but surface observations have not recorded
any precipitation yet. Rain will develop on the coast by noon or so.

Models generally bring light rain inland 00z-03z this evening,
though westerly flow aloft may keep the seattle area in a rain
shadow. A puget sound convergence zone will develop behind the front
late tonight; models keep it going all day Sunday even as most other
places become dry. Highs today and Sunday will be in the 50s.

Showers will end by Monday morning as heights rise a bit. Models now
feature a blob of rain moving into oregon and clipping the southern
part of the CWA Monday afternoon. Will adjust the forecasts with the
afternoon package. Highs Monday will be mostly in the mid to upper
50s. Burke

Long term Previous discussion... It has been a rare thing this
spring to be able to chain together more than one dry day, but the
ridge for late Monday through early Thursday morning just might be a
chance for doing so. Before completely grasping onto that optimistic
solution, however, it must be pointed out that a system does pass
just to the north of the CWA in this time span on Wed morning. The
gfs has it just nicking the very northernmost portions of the cwa
while the ECMWF remains true to form and offers a wetter solution.

While it may end up being a gambler's fallacy, currently siding with
gfs solution for no better argument than W wa's luck has to change
sometime. Plus, cannot turn away from the prospect of afternoon high
temperatures getting close to 70 on wed. Late Thursday morning shows
an upper level ridge passing through b.C. Which may allow for precip
for the northern half of the CWA into Thursday evening before
ridging over the pacific allows for conditions over W wa to dry once
more for Friday. The ecmwf, however, shows a fairly deep trough over
the western us at this time, so, as has been the case for at least
the past couple of weeks, long term models remain generally
uncertain and as such lowering any degree of confidence in the
extended forecast. Smr

Aviation Upper ridging will flatten this afternoon over the
pacific northwest, allowing the tail end of an upper trough and a
cold front to push across western washington tonight. Moderate
northwest flow aloft today will become strong westerly this
evening, then moderate northwest flow aloft again on Sunday. The
air mass will be stable and increasingly moist through this
evening. On Sunday, the air mass will be unstable and somewhat
moist below 10,000 feet msl but dry and stable above. CIGS will
come down quickly later this evening with the arrival of onshore
post-frontal winds. Expect a puget sound convergence zone from
late this evening through most of Sunday.

Ksea... Thickening clouds at or above 100 until 00z (5 pm), then
cigs will lower more quickly this evening. CIGS of 025-035 and
light rain are the most likely conditions during the busier 03z-
05z time frame. S-sw wind for the next 30 hours. Haner

Marine A cold front will pass east across the waters this
evening. The front will be preceded by increasing southerly winds
this afternoon, with speeds of up to 20 to 30 knots forecast over
the coastal waters. It will then followed by westerly flow later
this evening, strongest in the central and eastern strait.

Westerly flow will continue through Sunday.

Onshore flow will weaken later Sunday evening with a lull in wind
across the area starting Monday. The next front may reach the
waters by Thursday but timing is highly uncertain. Haner

Sew watches/warnings/advisories
Wa... None.

Pz... Small craft advisory until 3 am pdt Sunday 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 from 1 pm this afternoon to 9 am pdt Sunday
for east entrance u.S. Waters strait of juan de fuca.

Small craft advisory from 5 pm this afternoon to midnight pdt
tonight for northern inland waters including the san juan
islands.

Small craft advisory from 1 pm this afternoon to 3 am pdt Sunday
for west entrance u.S. Waters strait of juan de fuca.

Small craft advisory from 7 pm this evening to 9 am pdt Sunday
for central u.S. Waters strait of juan de fuca.

Small craft advisory from 1 pm this afternoon to midnight pdt
tonight for admiralty inlet-puget sound and hood canal.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 14 mi38 min S 7 G 8 48°F 1025.3 hPa (+0.0)43°F
EBSW1 - 9447130 - Seattle, WA 19 mi50 min SSE 5.1 G 8.9 49°F 48°F1025.7 hPa
46121 24 mi12 min 5.8 46°F 1025.2 hPa42°F
TCMW1 - 9446482 - Tacoma Met, WA 28 mi50 min N 1.9 G 1.9
TCNW1 - 9446484 - Tacoma, WA 28 mi56 min 49°F 45°F1026 hPa
PTWW1 - 9444900 - Port Townsend, WA 34 mi50 min ESE 2.9 G 2.9 46°F 49°F1025.6 hPa
SISW1 - Smith Island, WA 49 mi38 min SSE 6 G 7 48°F 1024.7 hPa (-0.5)

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, WA11 mi42 minSSE 410.00 miPartly Cloudy46°F42°F86%1027.2 hPa
Seattle, Seattle Boeing Field, WA22 mi45 minS 610.00 miOvercast49°F43°F80%1025.6 hPa
Seattle, Seattle-Tacoma International Airport, WA24 mi45 minSSE 410.00 miOvercast48°F41°F77%1026.2 hPa

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Last 24hr--SE433E6SE7CalmNE5NE4NE3E3CalmCalmCalmCalmNE3CalmCalmCalmCalmCalmSW3SW4S4
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Tracyton, Dyes Inlet, Washington
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Tracyton
Click for Map
Sat -- 02:27 AM PDT     4.95 feet Low Tide
Sat -- 05:56 AM PDT     Sunrise
Sat -- 07:21 AM PDT     11.94 feet High Tide
Sat -- 08:47 AM PDT     Moonrise
Sat -- 02:45 PM PDT     -2.13 feet Low Tide
Sat -- 08:20 PM PDT     Sunset
Sat -- 09:30 PM PDT     12.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
86.15.15.26.68.610.711.811.710.58.35.62.70-1.7-2.1-0.81.95.38.611.212.512.611.6

Tide / Current Tables for Blake Island, SW of, Washington Current
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Blake Island
Click for Map
Sat -- 02:23 AM PDT     0.26 knots Max Flood
Sat -- 05:56 AM PDT     Sunrise
Sat -- 05:59 AM PDT     -0.00 knots Slack
Sat -- 08:47 AM PDT     Moonrise
Sat -- 10:44 AM PDT     -0.78 knots Max Ebb
Sat -- 11:50 AM PDT     0.01 knots Slack
Sat -- 03:20 PM PDT     0.63 knots Max Flood
Sat -- 08:14 PM PDT     -0.00 knots Slack
Sat -- 08:20 PM PDT     Sunset
Sat -- 11:56 PM PDT     -0.49 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
00.20.30.30.20.1-0-0.2-0.4-0.6-0.7-0.70.10.30.50.60.60.50.40.20-0.2-0.3-0.5

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (13,3,4,5)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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.